IFC228-LCDFirst issue 08 / 04
Part of board connected to mains supply.Partie du châssis reliée au secteur.Primärseite des Netzteils.Parte dello châssis collegata alla rete.Parte del chassis conectar a la red.
Use isolating mains transformer.Utiliser un transformateur isolateur du secteur.Einen Trenntrafo verwenden.Utilizar un transformador aislador de red.Utilizzare un transformatore per isolarvi dalla rete.
Achtung :Bei Messungen im Primärnetzteil- Primärnetzteilmasse verwenden ( ).
Note :Power Supply primary circuit measurements.- Use only ( ) connection point.
Attention :Mesure dans la partie primaire de l'alimentation- Utiliser la masse du bloc alimentation ( ).Attenzione :misure nell'alimentatore primario - usare massa alimentazione primario ( ).
Cuidado :Medida en el bloque de alimentacion- Utilizar la masa del bloque de alimentacion ( ).
Safety PartWhen repairing, use original part onlyPièce de securitéN'utilisez que les pièces d'origine
Utilice solo piezas originalesBei Ersatz nur Originalteil verwendenSicherheitsbauteil
Pieza de seguridad
Per la riparazione utilizzare solo componenti originaliComponenti di sicurezza
EARTH
BP251A
BP251B
6.5V
LP253_P1
BP251
BP226B
BP226C
VCC1
6V
V_PRI
BP226A
33V
20.5V
20V
AC2
RAW_B+
20V
10.5V
45V20.5V
6.5V 20.5V
6.5V
PO
5VSTBY
POWER_FAIL
3.3VSTBY
AC1
10.5V
10V
20V
BURST
5VSTBY
10.5V!
!
!
!!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
! !
G
D
S
GD S
G
D S
G
D SG
D S
!
!
!
SMPS 200 IFC228
*
*
(US) 10N60
*
TO PUSH SWITCH MODULE
SecondaryPrimary
* VALUE MAY CHANGE ACCORDING TO SPECIFIC REQUIREMENT
WP235A
LIVENEUTRAL
16
7
5
2
3
4
9
10
11
12
13
15
14
6
1
8
LP253TFSMT60
CP22522U0
T1.00A 125VFZP207
CP209220UF
CP207220UF
CP208220UF
CP206220UF
CP2682N2F BC548B
TP407
BC548BTP222
CP23610U0F
12
BP204
DP260BZX55B6V2
DP414BZT55C8V2
RP41410k
RP413
2K2
1
2
3IP202
TL431
TP495BC858B
LP250
CP253100NF
FP251T2.5A 250V
1234
65 7 8
LP251
STP22NF03LTP202
CP438180P0
RP48622K
CIRCUIT DIAGRAM SMPS 200 IFC228
STP22NF03LTP204
STP22NF03LTP203
STP22NF03LTP201
1
3
2(EU)6N90
TP220
RP2200R68
DP254GP30M
12
12
34
65
78
LP252
RP257220K
T0.50A 125VFZP206
BC548BTP271
TP205KTC8550D
DP250BZX55B3V9
RP4012K2
RP483845R0
RP4842K1
CP48310N0F
1
2
3IP201TL431
T3.00A 125VFZP203
RP4196K2
RP4183K92
RP4172K2
CP48510N0F
1
2
3IP203TL431
CP2031500U/35V
CP2021500U/35V
1 2
T1.00A 125VFZP208
RP4152K43
RP4162K1
RP4042K2
CP484
10N0F
12
BP203
CP2041MIO
12
DP204SR560
RP44815K
CP2474U7F
DP247RGP15G
T3.00A 125VFZP204
RP2094K71W
DP206RGP15G
RP2072K2
CP4811N5F
RP2083K3
JP420
CP21022U0F
RP4853K9
RP205390R02W
DP205RGP15G
CP20522U0F
T0.50A 125VFZP205
RP47122K0
RP4722K2
RP4732K2 CP271
22U0F
DP471BZT55C4V7
DP472BZT55C3V9
RP475100K0
RP47633K01
2
3
IP271TL431
RP47422K0
RP4616K2
1
2
3IP261TL431
RP4623K92
DP273BAV21
RP4702K2
RP4685K6
RP4672K7
1
23
4
IP251TCET1103G
DP230BZX55C8V2
RP2301K0
CP2201N5
LP2203U3
CP2331N0
RP23347K0 DP233
15V
RP23110R0
RP22822R0
RP4922K2
RP22122R0
RP2273K3
12
BP253
TP223KTC8550D
RP2262K7
CP222470P0
CP24010U0
RP44147K0
RP2402K2
DP240BZX55B27
DP237BAV21
RP29322K0
RP238470R0
CP239180P0
CP2371N5
CP22422U0
DP227BZX55B24
RP49522K0
DP493BZT55C8V2
CP493470P0
RP49410K
CP226330P0
DP225RGP10G
DP226RGP10G
LP2251U5
RP258220K
DP255GP30M
CP2561N5
CP2551N5
DP252GP30M
CP2541N5F
DP253GP30M
CP251100NFRP251
470K
CP252100NF
RP22510M
GNDGNDGND
GND
GND
GND
GNDGNDGND
GND
GND
GND
GND GNDGND
GND
GND GND
12
CP2152N2
JP453
GND
H
10.5V
H GND
H
H
H
H
H
H
H
GND GND
GND GND
GND
GND
GND GND
GND
GND
GND
GND
GND
GND
GND
GND
CP209220UF
GND
DP203STPS30150CT
CP48610NOF
GND
BC548BTP261
RP4644K7
DP261BZX55C8V2
RP4632K2
RP462
CP46110N0F
RP4692K2
RP46510K
RP466100R0GND
GNDGND
POWER SUPPLY - ALIMENTATION - NETZTEIL - ALIMENTAZIONE - ALIMENTACIÓN
IFC228-LCDFirst issue 08 / 04
!
!
!
!
!!
!
!
!
!
!
CSS
CF
OPOUT
RFMIN
OPIN+
EN1
VBOOT
HVGRFSTART
OUT
N.C.
VS
EN2
OPIN- LVG
GND
!
G
S
D
IAC
VP
CA_OUT
LFF
VRMS
MULT_OUT
ISENSE
SGND VREF
SS
VA_OUT
VFEED
UVLO
FREQ_MOD
ROSC
COSC
VCC
GDRVPGND
IPK
G
S
D
G
S
D
!
G
D S
G
D S
!
!
( To Inverter Board)
SecondaryPrimary
SMPS 200 IFC228
CP3911000U/25V
25
LP300_P6
LP300_P2
CP3711000U/25V25V
CP3821500U/35V
CP3811500U/35V
LP300_P14
LP300_P15
LP300_P11
LP300_P10
CP708470U400V
CP5122N2
RP833330K
LP7223U3
CP551100N
16
8
7
6
5
1
2
3
4
9
10
11
12
13
1514
3K92/1%RP554
CP7272N2
STPS30150CTDP381
CP81910N
CIRCUIT DIAGRAM SMPS 200 IFC228
STP22NF03LTP751
STP22NF03LTP302
H
H
DP392BYW98-200
DP744_CDP744_A
TP32114NK50
RP826330K
RP827330K
RP828330K
DP361BZX55830RP562
4K7
RP3612K2
BC548BTP361
RP56310K0
1
23
4
RP55326K7
DP391BYW98-200
FZP371
T3,00A 125VDP371
BYW98-200
DP372BYW98-200
TP7202SK2837
RP7514R7,10W
DP721STTH8R06FP LP721
3U3
RP7294R7,10W
CP7222N2
GP30MDP744DP743
GP30M
16
8
7
6
5
1
2
3
4
9
10
11
12
13
1514
LP700
RP832330K
DP720BZX55C201K
RP722
DP724RGP15G
RP721
4R7LP7163U3
CP74110UCP812
4N7 RP81212K
RP84333K
RP834330K
RP83713K7/1%
RP839100R0
RP818
39K
CP818220NRP840
22K1N4148DP808CP814
100N
CP7111U50V
RP844220K
RP80622KCP806
100N
RP8134K7
RP8148K2
RP84756K
RP81682K
CP81647N
RP8174K7
CP81310N
RP804100KRP723
0R27 ; 3W
RP803330K
RP802330K
RP801330K
CP701470N
RP807330K
RP808330K
RP809330K
RP83112K
3
6
8
11
12
13
14
15
16
17
18
20
19
7
5
9
1
2
4
10
RP5513K9
RP5523K3
1
23
4
RP51256K
1
1
2
2 1 21 2
3IP351TL431
RP5550R
DP326(PREP)
RP32539R
DP325RGP10G
CP325100N
RP52110K
CP32822U0F
DP323RGP10G
RP32339R
DP324(PREP)
DP328(PREP)
RP328R100/3W
RP32410K
RP32610K
TP32214NK50
CP32116N8 CP322
16N8
CP75122U0F
RP85122K
BC548BTP752
RP8523K9
1
2
3IP751TL431
CP85210N0
RP8533K92
RP85415K
DP751RGP10G
FZP301T0.5A 125V
DP301RGP10G
CP30122U0F
RP30122K
1
2
3
IP303TL431
BC548BTP303
RP3023K9 CP503
10N0
CP30222U0F
RP50315K
RP5043K92
DP7538V2
CP75322U0F
CP85510N0
RP855
22K
RP8562K2
TP753BC548B 100N
CP518 RP5105K1
RP5164K3
RP519
33K
RP51139K
CP516680P
RP51727K
CP3154U7
1
3
56
4
7
8
16
152
14
13
12
9
11
10
1
2
3
4
1
2
34
5
6
7
8
9
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
10
H
1
2
3
4
5
6
GND
GND
GND
GND
H
CP817220P
CP803220N
RP3271K
RP515110K
PO
H
H
H
H
H
H
GNDH
GND GNDGND
H
H
H
H
H
H
H
H
H
GND
GND
H
GND
GND
GND
DP382STPS30150CT
H
HH
HH
GND
GND
5
3
2
8
4
67 1
1N5822DP352
1N5822DP351
JP352
JP351
CP351220UF
CP385220U/35V
CP386220N
RP58520K
CP5852N7
CP587100N
CP58622N
RP5869K1
CP588100N
DP386SR560
LP385125U
CP388220UF
RP5884K7
RP5872K7
GND
GND
5VA
5VB
4V
HEATSINK
L6598
PFC200
HEATSINKHEATSINK
( To Scaler Board) (To Signal Board BP002)
( To Signal Board BP001)
( To Audio Board)
DP203AHEATSINK
+UA
TP720A
LP300TFSMT26E250
TP322A
IP302TCET1103G
AC2
L4891BIP710
IP310TCET1103G
IP300
BP321 BP222 BP220A BP220
DP381A
BP320
V_PRI
RAW_B+
+VSSIN
4V
RAW_B+
RAW_B+
AC1
+VSSIN
-UA
5VB
5VA
33V
4V
VON/OFFVBRI
ECO_STBYBURST
SAFETYPOWER_FAIL
3.3VSTBY5VSTBY
20V
10V
-UA
+UA
6V
+VSSIN
VBRIVON/OFF
L4978IP385
6V
5VA
+VSSIN
Part of board connected to mains supply.Partie du châssis reliée au secteur.Primärseite des Netzteils.Parte dello châssis collegata alla rete.Parte del chassis conectar a la red.
Use isolating mains transformer.Utiliser un transformateur isolateur du secteur.Einen Trenntrafo verwenden.Utilizar un transformador aislador de red.Utilizzare un transformatore per isolarvi dalla rete.
Achtung :Bei Messungen im Primärnetzteil- Primärnetzteilmasse verwenden ( ).
Note :Power Supply primary circuit measurements.- Use only ( ) connection point.
Attention :Mesure dans la partie primaire de l'alimentation- Utiliser la masse du bloc alimentation ( ).Attenzione :misure nell'alimentatore primario - usare massa alimentazione primario ( ).
Cuidado :Medida en el bloque de alimentacion- Utilizar la masa del bloque de alimentacion ( ).
Safety PartWhen repairing, use original part onlyPièce de securitéN'utilisez que les pièces d'origine
Utilice solo piezas originalesBei Ersatz nur Originalteil verwendenSicherheitsbauteil
Pieza de seguridad
Per la riparazione utilizzare solo componenti originaliComponenti di sicurezza
POWER SUPPLY - ALIMENTATION - NETZTEIL - ALIMENTAZIONE - ALIMENTACIÓN
IFC228-LCDFirst issue 08 / 04
Part of board connected to mains supply.Partie du châssis reliée au secteur.Primärseite des Netzteils.Parte dello châssis collegata alla rete.Parte del chassis conectar a la red.
Use isolating mains transformer.Utiliser un transformateur isolateur du secteur.Einen Trenntrafo verwenden.Utilizar un transformador aislador de red.Utilizzare un transformatore per isolarvi dalla rete.
Achtung :Bei Messungen im Primärnetzteil- Primärnetzteilmasse verwenden ( ).
Note :Power Supply primary circuit measurements.- Use only ( ) connection point.
Attention :Mesure dans la partie primaire de l'alimentation- Utiliser la masse du bloc alimentation ( ).Attenzione :misure nell'alimentatore primario - usare massa alimentazione primario ( ).
Cuidado :Medida en el bloque de alimentacion- Utilizar la masa del bloque de alimentacion ( ).
Safety PartWhen repairing, use original part onlyPièce de securitéN'utilisez que les pièces d'origine
Utilice solo piezas originalesBei Ersatz nur Originalteil verwendenSicherheitsbauteil
Pieza de seguridad
Per la riparazione utilizzare solo componenti originaliComponenti di sicurezza
EARTH
BP251A
BP251B
6VA
6.5V
LP253_P1
BP251
BP226B
BP226C
VCC1
6V
V_PRI
BP226A
33V
20.5V
20V
AC2
RAW_B+
20V
10.5V
45V20.5V
6.5V 20.5V
6.5V
PO
5VSTBY
POWER_FAIL
3.3VSTBY
AC1
10.5V
10V
4V
20V
!
!
!
!!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
! !
G
D
S
GD S
G
D S
G
D SG
D S
!
!
!
!
SMPS 300 IFC228
*
*
(US) 10N60
*
TO PUSH SWITCH MODULE
SecondaryPrimary
* VALUE MAY CHANGE ACCORDING TO SPECIFIC REQUIREMENT
WP235A
LIVENEUTRAL
16
7
5
2
3
4
9
10
11
12
13
15
14
6
1
8
LP253TFSMT60
CP351220U
CP22522U0
DP351SR560T1.00A 125V
FZP351
T1.00A 125VFZP207
CP209220UF
CP207220UF
CP208220UF
CP206220UF
CP2682N2F BC548B
TP407
BC548BTP222
CP23610U0F
DP416BZX55B3V9
DP415BZX55B3V9
12
BP204
DP260BZX55B6V2
RP4143K92
RP41218K
1
2
3IP204TL431
CP48610N0F
RP413
2K2
1
2
3IP202
TL431
TP495BC858B
1234
65 7 8
LP250
CP253100NF
FP251T2.5A 250V
1234
65 7 8
LP251
STP22NF03LTP202
CP438180P0
RP48622K
CIRCUIT DIAGRAM SMPS 300 IFC228
STP22NF03LTP204
STP22NF03LTP203
STP22NF03LTP201
1
3
2(EU)6N90
TP220
RP2200R68
DP254GP30M
12
12
34
65
78
LP252
RP257220K
T0.50A 125VFZP206
BC548BTP271
TP205KTC8550D
DP250BZX55B3V9
RP4012K2
RP483845R0
RP4842K1
CP48310N0F
1
2
3IP201TL431
T3.00A 125VFZP203
RP4196K2
RP4183K92
RP4172K2
CP48510N0F
1
2
3IP203TL431
CP2031500U/35V
CP2021500U/35V
1 2
T1.00A 125VFZP208
RP4152K43
RP4162K1
RP4042K2
CP484
10N0F
12
BP203
CP2041MIO
12
DP204SR560
RP44815K
CP2474U7F
DP247RGP15G
T3.00A 125VFZP204
RP2094K71W
DP206RGP15G
RP2072K2
CP4811N5F
RP2083K3
JP420
CP21022U0F
RP4853K9
RP205390R02W
DP205RGP15G
CP20522U0F
T0.50A 125VFZP205
RP47122K0
RP4722K2
RP4732K2 CP271
22U0F
DP471BZT55C4V7
DP472BZT55C3V9
RP475100K0
RP47633K01
2
3
IP271TL431
RP47422K0
RP4616K2
1
2
3IP261TL431
RP4623K92
DP273BAV21
RP4702K2
RP4685K6
RP4672K7
1
23
4
IP251TCET1103G
DP230BZX55C8V2
RP2301K0
CP2201N5
LP2203U3
CP2331N0
RP23347K0 DP233
15V
RP23110R0
RP22822R0
RP4922K2
RP22122R0
RP2273K3
12
BP253
TP223KTC8550D
RP2262K7
CP222470P0
CP24010U0
RP44147K0
RP2402K2
DP240BZX55B27
DP237BAV21
RP29322K0
RP238470R0
CP239180P0
CP2371N5
CP22422U0
DP227BZX55B24
RP49522K0
DP493BZT55C8V2
CP493470P0
RP49410K
CP226330P0
DP225RGP10G
DP226RGP10G
LP2251U5
RP258220K
DP255GP30M
CP2561N5
CP2551N5
DP252GP30M
CP2541N5F
DP253GP30M
CP251100NFRP251
470K
CP252100NF
RP22510M
GNDGNDGND
GND
GND
GND
GNDGNDGND
GND
GND
GND
GND GNDGND
GND
GND GND
12
CP2152N2
JP453
GND
H
10.5V
H GND
H
H
H
H
H
H
H
GND GND
GND GND
GND
GND
GND GND
GND
GND
GND
GND
GND
GND
GND
GND
DP203STPS30150CT
GND
DP352SR560
POWER SUPPLY - ALIMENTATION - NETZTEIL - ALIMENTAZIONE - ALIMENTACIÓN
IFC228-LCDFirst issue 08 / 04
!
!
!
!
!
!
!!
!
!
!
!
CSS
CF
OPOUT
RFMIN
OPIN+
EN1
VBOOT
HVGRFSTART
OUT
N.C.
VS
EN2
OPIN- LVG
GND
!
G
S
D
IAC
VP
CA_OUT
LFF
VRMS
MULT_OUT
ISENSE
SGND VREF
SS
VA_OUT
VFEED
UVLO
FREQ_MOD
ROSC
COSC
VCC
GDRVPGND
IPK
G
S
D
G
S
D
!
G
D S
G
D S
!
!
!
!
( To Inverter Board)
SecondaryPrimary
SMPS 300 IFC228
CP3911000U/25V
25
LP300_P6
LP300_P2
+VSSIN
CP38
510
00U/
25V
25V
1
2
3
4
5
6
7
89 10
11
12
13
14
15
16
17
18
IP985
CP3711000U/25V25V
CP5891UF50V
CP58
747
0NF
CP390220UF
16V
RP5884K7
RP5873K9
CP58
433
0P
CP58
622
N
RP58
69K
1
CP3881000U35V
CP588220N
LP385125U
DP38
6SR
560
CP38
622
0N20
KRP
585 CP
585
2N7
CP3821500U/35V
CP3811500U/35V
CP709150U400V
16
8
7
6
5
1
2
3
4
9
10
11
12
13
1514
LP300_P14
LP300_P15
LP300_P11
LP300_P10
CP708470U400V
T3.00A 125VFZP371
T3.00A 125VFZP391
GND
CP5122N2
GND
GND
RP833330K
LP7223U3
CP551100N
16
8
7
6
5
1
2
3
4
9
10
11
12
13
1514
3K92/1%RP554
CP7272N2
STPS30150CTDP381
CP81910N
CIRCUIT DIAGRAM SMPS 300 IFC228
STP22NF03LTP751
STP22NF03LTP302
H
H
DP392BYW98-200
DP744_CDP744_A
TP32114NK50
RP826330K
RP827330K
RP828330K
DP361BZX55830RP562
4K7
RP3612K2
BC548BTP361
RP56310K0
1
23
4
RP55326K7
DP391BYW98-200
DP371BYW98-200
DP372BYW98-200
TP7202SK2837
RP7514R7,10W
DP721STTH8R06FP LP721
3U3
RP7294R7,10W
CP7222N2
GP30MDP744DP743
GP30M
16
8
7
6
5
1
2
3
4
9
10
11
12
13
1514
LP700
RP832330K
DP720BZX55C201K
RP722
DP724RGP15G
RP721
4R7LP7163U3
CP74110UCP812
4N7 RP81212K
RP84333K
RP834330K
RP83713K7/1%
RP839100R0
RP818
39K
CP818220NRP840
22K1N4148DP808CP814
100N
CP7111U50V
RP844220K
RP80622KCP806
100N
RP8134K7
RP8148K2
RP84756K
RP81682K
CP81647N
RP8174K7
CP81310N
RP804100KRP723
0R27 ; 3W
RP803330K
RP802330K
RP801330K
CP701470N
RP807330K
RP808330K
RP809330K
RP83112K
3
6
8
11
12
13
14
15
16
17
18
20
19
7
5
9
1
2
4
10
RP5513K9
RP5523K3
1
23
4
RP51256K
1
1
2
2 1 21 2
3IP351TL431
RP5550R
DP326(PREP)
RP32539R
DP325RGP10G
CP325100N
RP52110K
CP32822U0F
DP323RGP10G
RP32339R
DP324(PREP)
DP328(PREP)
RP328R100/3W
RP32410K
RP32610K
TP32214NK50
CP32116N8 CP322
16N8
CP75122U0F
RP85122K
BC548BTP752
RP8523K9
1
2
3IP751TL431
CP85210N0
RP8533K92
RP85415K
DP751RGP10G
FZP301T0.5A 125V
DP301RGP10G
CP30122U0F
RP30122K
1
2
3
IP303TL431
BC548BTP303
RP3023K9 CP503
10N0
CP30222U0F
RP50315K
RP5043K92
DP7538V2
CP75322U0F
CP85510N0
RP855
22K
RP8562K2
TP753BC548B 100N
CP518 RP5105K1
RP5164K3
RP519
33K
RP51139K
CP516680P
RP51727K
CP3154U7
1
3
56
4
7
8
16
152
14
13
12
9
11
10
1
2
3
4
1
2
34
5
6
7
8
9
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
10
H
1
2
3
4
5
6
GND
GND
GND
GND
H
CP817220P
CP803220N
RP3271K
RP515110K
PO
H
H
H
H
H
H
GNDH
GNDGND
H
H
H
H
H
H
H
H
H
GND
GND
H
GND
GND
GND
DP382STPS30150CT
H
GND
GND
HH
GND
GND
GND
GND
GNDH
H
H
LP300_P14
LP300_P15
LP300_P11
LP300_P10
LP300_P2
LP300_P6GND
CP3831500U/35V
GND
GND
HEATSINK
L6598
PFC200
HEATSINKHEATSINK
( To Scaler Board) (To Signal Board BP002)
( To Signal Board BP001)
( To Audio Board)
V12
L4973V5.1
DP203AHEATSINK
LP301TFSMT26E250
+UA
TP720A
LP300TFSMT26E250
TP322A
IP302TCET1103G
AC2
L4891BIP710
IP310TCET1103G
IP300
BP321 BP222 BP220A BP220
DP381A
BP320
V_PRI
RAW_B+
+VSSIN
4V
RAW_B+
RAW_B+
AC1
+VSSIN
-UA
6V
V12
33V
4V
VON/OFFVBRI
ECO_STBYSAFETY
POWER_FAIL
3.3VSTBY5VSTBY
20V
10V
-UA
+UA
6V
+VSSIN
VBRIVON/OFF
Part of board connected to mains supply.Partie du châssis reliée au secteur.Primärseite des Netzteils.Parte dello châssis collegata alla rete.Parte del chassis conectar a la red.
Use isolating mains transformer.Utiliser un transformateur isolateur du secteur.Einen Trenntrafo verwenden.Utilizar un transformador aislador de red.Utilizzare un transformatore per isolarvi dalla rete.
Achtung :Bei Messungen im Primärnetzteil- Primärnetzteilmasse verwenden ( ).
Note :Power Supply primary circuit measurements.- Use only ( ) connection point.
Attention :Mesure dans la partie primaire de l'alimentation- Utiliser la masse du bloc alimentation ( ).Attenzione :misure nell'alimentatore primario - usare massa alimentazione primario ( ).
Cuidado :Medida en el bloque de alimentacion- Utilizar la masa del bloque de alimentacion ( ).
Safety PartWhen repairing, use original part onlyPièce de securitéN'utilisez que les pièces d'origine
Utilice solo piezas originalesBei Ersatz nur Originalteil verwendenSicherheitsbauteil
Pieza de seguridad
Per la riparazione utilizzare solo componenti originaliComponenti di sicurezza
POWER SUPPLY - ALIMENTATION - NETZTEIL - ALIMENTAZIONE - ALIMENTACIÓN
IFC228-LCDFirst issue 08 / 04
SCALER BOARD - PLATINE SCALER - SCALER GRUNDPLATTE - PIASTRA SCALER - PLATINA SCALER
4 11 4
1
+
6 +
92 +
4 329 30
45
6 1 8 1+
T3.15A,125V
BX002BX005
BX007
1BX017
CX001
CX002
+
CX030
CX032CX033
CX109
+
DX002
DX003
FDU01
FZX002
IX005IX006
IX009IX301
RX006
RX110
RX204RX206
RX268RX270
RX386RX801
TX004
1613
1420
2117
CX029CX192
FDU06IX015
LX010
LX016
RX001
RX109
RX176RX177RX178RX179
RX191
RX196
RX200RX203
RX205
RX359
15
4
+1+30
2932 + CX003
CX004CX005
CX027 CX070CX071
FDU05
IX001
RX180RX181
IX004
5
+
13
14
1
2+
1
+
81A1
+
16
9
15
14
16
SX001
RX802RX377
RX376
RX354
RX303
RX302
RX218
RX212
RX211
RX026RX025
IX300
FDU07
FDU04
CX30 4
CX303
CX300CX100
CX092CX087
CX038
CX037
BX012
BX004
BX0031
QX001 RX027
+
PCB SCALER IFC228
1 2
+2138804C
++CX010
CX011
CX012
CX105
FDU02 RX049RX050
RX192RX364RX365
RX366RX367
RX368
RX369
51 80
41
50
81 4021
31
20
100
30
1
+
RX217
RX216
RX209
RX195
RX155
RX046 RX041 RX040 RX039
RX038
IX003
FDU14
FDU13
FDU08
CX185
CX182
CX181
CX113CX03
4
60
1
61
8
801
185 4 1
2
++ 1
2
+
6
RX258
RX25 7
RX256
RX255
RX25 4
RX253
RX208
RX159RX158
RX157
RX156
RX152RX151
RX150
RX149RX148
RX147
LX032
LX03 1
LX030
IX014
IX007
FDU09
FDU03
CX217
CX216
CX21 5
CX21 4
CX21 3
CX21 2
CX174
+
CX169
+
CX054
CX053
BX013
RX153
CX114
BX001
BX008RX199
RX213RX215
RX353
COMPONENT SIDE - COTÉ COMPOSANTS - BESTÜCKUNGSSEITE - LATO COMPONENTI - LADO COMPONENTES
IFC228-LCDFirst issue 08 / 04
VGA_SDA0RRX377
UART
_TX_
1UA
RT_R
X_1
GM_BUSYGND
TXA3+
TXB1+
TXB3+
TXA2+
TXA3-
TXB1-
TXB3-
TXB0-
TXB0+
TXB2+
TXBC+
TXBC-
TXA1-
TXA1+
TXAC-
TXAC+
100NCX002
22UFCX001
UXGA
CON
NECT
OR
BX0172
1
GND
JTAG_TCK/SCL
3V3_DIG
JTAG_TDO
PBIAS
JTAG_TDI/SDAJTAG_TMS
PPWR
GND
3V3_PLL
3V3_ADC
1V8_ADC
3V3_DVI
1V8_DVI
FSVREF3V3_LVDS
3V3_LVDSA
3V3_LVDSB
2V5_DDR1
GM_INTERRUPT
/ROM_CS/OCM_RE/OCM_WE
MSTR_SDAMSTR_SCL
PWM0
RED-GREEN-
1V8_CORE
OCMADDR7OCMADDR6OCMADDR5OCMADDR4OCMADDR3OCMADDR2OCMADDR1OCMADDR0
3V3_LBADC
FSCLK-FSCLK+
FSAD11FSAD10FSAD9FSAD8FSAD7FSAD6FSAD5FSAD4FSAD3FSAD2FSAD1FSAD0
FSDQM1_FSDQM2_FSDQM3_
FSDQM0_
/FSCAS_/FSRAS_FSCKE_
/FSWE_
FSBKSEL0_
DOGR
N2
FSD31FSD30FSD29FSD28FSD27FSD26FSD25FSD24FSD23FSD22FSD21FSD20
FSD18FSD17
FSD15FSD14FSD13FSD12FSD11FSD10
FSD7FSD6FSD5FSD4FSD3
FSD19
FSD0
FSD16
AF10
AC11
AD11
TXB3+TXB3-
TXBC-AD14
TXB2+TXB2-
TXB1-TXB0+ AE
13
AE7
OCMDATA0OCMDATA1OCMDATA2OCMDATA3OCMDATA4
SVCL
KSV
HSYN
CSV
VSYN
CSV
ODD
SVDA
TA7
SVDA
TA6
SVDA
TA4
SVDA
TA3
SVDV
SVDA
TA1
SVDA
TA0
SVDA
TA2
SVDA
TA5
VCLK
DGB7
DGB6
DGB5
DGB2
DGB1
DGB0
DGG7
DGG5
DGG2
DGG1
DGG6
VGA_
SDA
AVSY
NCAH
SYNC
VGA_
SCL
RED+
GREE
N+
BLUE
+
OCMADDR12OCMADDR13OCMADDR14OCMADDR15OCMADDR16OCMADDR17OCMADDR18OCMADDR19
OCMADDR8OCMADDR9OCMADDR10OCMADDR11
OCMDATA5OCMDATA6OCMDATA7
DVI_
SCL
DGG3
DGG4
TXBC+ AE11
DGB3
FSD9FSD8
FSD1FSD2
FSDQS
AF8AE8AC9AD9AE9AF9
AD10
AF10AC11AD11AE11AE13AD14
SVDATA7
SVDATA6
SVDATA5
SVDATA4
SVDATA2
SVDATA1
SVDATA3
SVODD
SVVSYNC
SVHSYNC
SVDATA0
SVDV
3V3_PLL
5V0
3V3_DVI
3V3_DIG
0RRX176
0RRX177
0RRX178
0RRX180
0RRX181
0RRX182
10KRX184
10KRX185
10KRX186
10KRX187
10KRX188
10KRX189
22PF
CX009
0RRX179
10KRX183
0RRX175
0RRX191
0RRX192
0RRX193
0RRX194
0RRX195
0RRX196
0RRX199
0RRX200
0RRX201
0RRX202
0RRX203
0RRX197
0RRX204
0RRX206
0RRX205
3K3RX023
2K7RX022
0RRX198
0RRX115
5K6RX030
3K3RX032
22PFCX008
56R0RX026
56R0RX025
0RRX213
0RRX218
SVCLK
0RRX215
33R0RX024
0RRX109
0RRX006
10NFCX004
10NFCX003
56R0RX027
VCCGND
OUT
DS1811R-10IX002
1
3
2 GND
GND
AE10
10NFCX005
BLUE+
470R0
RX029 SOG
GREEN+
RED+
75RRX241
75RRX242
22RRX243
22R
RX244
22RRX245
75RRX246
10NFCX194
10NFCX195
10NFCX006
SOG
10NF
CX00
7
JTAG
BX0024321
GND
GND
GND
10KRX033
AC5
VGA_CAB
14.318MHZ
QX001
0RRX212
UART
BX00
54 3 2 1
ADIN
1
BLUE-
3V3_DIG
0RRX210
ADIN
1
0RRX211
ADIN
2
ADIN
2
BX008
14
13
12
11
10
9
8
7
6
5
4
3
2
1
RESETSX001
1
2
10KRX190
2K7RX021
10KRX251
10KRX250
AD5
AF5
AE5
0RRX207
0RRX268
0RRX269
0RRX270
AE7
AD5AE5
AE4
AF4
AF4
0RRX267
249R0 1%RX028
GND
0RRX219
DGB4
DGR0
DGR1
DGR2
DGR3
DGR4
DGR5
DGR6
DGR7
DGG0
VODD
VVS
VHS_
CSYN
C
V_CL
AMP
SOG_
ADC
AC5AF5
AE4
2CH LVDS
BX001
1
1011 1213 1415 1617 1819
2
2021 2223 2425 2627 2829
3
30
468
579
TXA2-
TXA0+TXA0-
TXB2-
3V3_LBADC
GND T FCT150AT002
T FCT150AT003
TAT004FCT150
T FCT150AT005
5V0
0RRX
004
0R
RX283
0RRX282
0RRX
005
GND
0RRX353
DVI_SCL
DVI_SDA
0RRX354
TXA3
-
DORE
D5
DORE
D3
TXA2
+TX
A2-
TXA1
+TX
A1-
DOBL
U2DO
BLU3
DOBL
U6
DOBL
U8DO
BLU9
AE8
AF8
AC9
AD9
AE9
AF9
AE10
AD10
0RRX355
FSBKSEL1_
DORE
D2
TXAC
+
DOGR
N5
DOBL
U5
/OCM_CS0
/OCM_CS1
/OCM_CS2
/OCM_INT1
/OCM_INT2
/OCM_RE
/OCM_W
E
/RESET
/ROM_CS
A0+A0-
A1+A1-
A2+A2-
A3+A3-AC+AC-
ACS_RSET_HD
ADC_1.8_1ADC_1.8_2
ADC_3.3_1ADC_3.3_2ADC_3.3_3ADC_3.3_4
ADC_AGND_1ADC_AGND_2
ADC_AGND_3ADC_AGND_4ADC_AGND_5
ADC_DGND_1
ADC_DGND_2
AHSYNCAVSYNC
B0+B0-
B1+B1-
B2+B2-
B3+B3-BC+BC-
BLUE+BLUE-
CORE_1.8_1
CORE_1.8_10CORE_1.8_11CORE_1.8_12CORE_1.8_13
CORE_1.8_2CORE_1.8_3CORE_1.8_4CORE_1.8_5CORE_1.8_6CORE_1.8_7CORE_1.8_8CORE_1.8_9
DCLK
DEBLU0DEBLU1
DEGRN0DEGRN1
DEN
DERED0DERED1
DERED2DERED3DERED4DERED5DERED6DERED7DERED8DERED9
DHS
DOBLU2DOBLU3DOBLU4DOBLU5DOBLU6DOBLU7DOBLU8DOBLU9
DOGRN1
DOGRN2DOGRN5
DORED2DORED3DORED4DORED5
DVI_1.8_1DVI_1.8_2DVI_1.8_3DVI_1.8_4
DVI_3.3_1DVI_3.3_2DVI_3.3_3DVI_3.3_4DVI_3.3_5
DVI_GND_1DVI_GND_2DVI_GND_3DVI_GND_4DVI_GND_5DVI_GND_6DVI_GND_7
DVI_SCLDVI_SDA
DVS
D_GND
D_GND_1
D_GND_10D_GND_11D_GND_12D_GND_13D_GND_14D_GND_15D_GND_16D_GND_17D_GND_18D_GND_19
D_GND_2
D_GND_20D_GND_21D_GND_22D_GND_23D_GND_24D_GND_25D_GND_26D_GND_27D_GND_28D_GND_29
D_GND_3
D_GND_30D_GND_31D_GND_32D_GND_33
D_GND_34D_GND_35D_GND_36D_GND_37D_GND_38D_GND_39
D_GND_4
D_GND_40D_GND_41D_GND_42D_GND_43D_GND_44D_GND_45D_GND_46D_GND_47
D_GND_48D_GND_49
D_GND_5
D_GND_50D_GND_51D_GND_52D_GND_53
D_GND_6D_GND_7D_GND_8D_GND_9
EXTCLK
FSADDR0FSADDR1
FSADDR10FSADDR11
FSADDR2FSADDR3FSADDR4FSADDR5FSADDR6FSADDR7FSADDR8FSADDR9
FSBKSEL0FSBKSEL1
FSCAS
FSCKE
FSCLKNFSCLKP
FSDATA0FSDATA1
FSDATA10FSDATA11FSDATA12FSDATA13FSDATA14FSDATA15FSDATA16FSDATA17FSDATA18FSDATA19
FSDATA2
FSDATA20FSDATA21FSDATA22FSDATA23FSDATA24FSDATA25FSDATA26FSDATA27FSDATA28FSDATA29
FSDATA3
FSDATA30FSDATA31
FSDATA4FSDATA5FSDATA6FSDATA7FSDATA8FSDATA9
FSDQM0FSDQM1FSDQM2FSDQM3
FSDQS
FSRAS
FSVREFVSS_1FSVREFVSS_2
FSVREF_1FSVREF_2
FSWE
FS_2.5_1
FS_2.5_10FS_2.5_11FS_2.5_12FS_2.5_13FS_2.5_14FS_2.5_15
FS_2.5_2FS_2.5_3FS_2.5_4FS_2.5_5FS_2.5_6FS_2.5_7FS_2.5_8FS_2.5_9
GREEN+GREEN-
IO_3.3_1
IO_3.3_10IO_3.3_11
IO_3.3_2IO_3.3_3IO_3.3_4IO_3.3_5IO_3.3_6IO_3.3_7IO_3.3_8IO_3.3_9
IR0IR1
JTAG_CLKJTAG_M
ODE
JTAG_RESET
JTAG_TDI
JTAG_TDO
LBADC_33
LBADC_GNDLBADC_IN1LBADC_IN2LBADC_IN3
LBADC_RETURN
LVDSA_3.3_1LVDSA_3.3_2LVDSA_3.3_3LVDSB_3.3_1LVDSB_3.3_2LVDSB_3.3_3
LVDSB_GND_1LVDSB_GND_2LVDSB_GND_3
MSTR_SCL
MSTR_SDA
NC
NC_1NC_2
NC_3
NC_4NC_5
OCMADDR0OCMADDR1
OCMADDR10OCMADDR11OCMADDR12OCMADDR13OCMADDR14OCMADDR15OCMADDR16OCMADDR17OCMADDR18OCMADDR19
OCMADDR2OCMADDR3OCMADDR4OCMADDR5OCMADDR6OCMADDR7OCMADDR8OCMADDR9
OCMDATA0OCMDATA1
OCMDATA10OCMDATA11OCMDATA12OCMDATA13OCMDATA14OCMDATA15
OCMDATA2OCMDATA3OCMDATA4OCMDATA5OCMDATA6OCMDATA7OCMDATA8OCMDATA9
OCM_TIM
ER1
OCM_UDI
OCM_UDO
OEXTR
PBIASPPW
R
PWM
0PW
M1
PWM
2
RED+RED-
REXT
RX0+RX0-RX1+RX1-RX2+RX2-RXC+RXC-
SHIELD-0SHIELD-1SHIELD-2SHIELD-3
SHIELD-4SHIELD-5
SOG
SVCLK
SVDATA0SVDATA1SVDATA2SVDATA3SVDATA4SVDATA5SVDATA6SVDATA7SVDV
SVHSYNC
SVODDSVVSYNC
TCLK
VBLU0VBLU1VBLU2VBLU3VBLU4VBLU5VBLU6VBLU7
VCLAMP
VCLK
VDDA18_DLL
VDDA33_DDDS_1VDDA33_DDDS_2
VDDA33_FPLLVDDA33_PLL
VDDA33_RPLL
VDDA33_SDDS_1VDDA33_SDDS_2
VDDD33_LVDS
VDV
VGA_SCLVGA_SDA
VGRN0VGRN1VGRN2VGRN3VGRN4VGRN5VGRN6VGRN7
VHS_CSYNC
VODD
VRED0VRED1VRED2VRED3VRED4VRED5VRED6VRED7
VSSA18_DL
VSSA33A_LVDS_1VSSA33A_LVDS_2VSSA33A_LVDS_3
VSSA33_DDDS
VSSA33_FPLL
VSSA33_RPLL
VSSA33_SDDS
VSSD33_DDDS
VSSD33_LVDS
VSSD33_PLL
VSSD33_SDDS
VVS
XTAL
GM1501SYSTEM
IX001
M17
M10
AC23
E26E25
T26R25
U10
C9
E23
A3
AC12
D17
C24
AC16
J2 AE11
AE12
AD15
F3E2
C18
D21
AC13
N16
B13
N14
U14
L2
A22 N3 N4
A19
AC3AC2AC1AD1AE1AF1AD2AE2
AA3AA2AA1AB3AB2AB1
V3V2V1W3W2W1Y3
P2
Y2
P1T4
T3T2T1U4U3U2U1V4
Y1
A9 A8
B11B1B2C1C2D1D2C3
A10B10A6B6D5C5A1N2L4L3R4G4G3F1K3K2 N1
C19B19 B8B9
A23
D18
B18A18C17
B21
C22B22
C21
D20
A21B25A25D24
B20
B24A24C23B23A20
C25
C20D19
B17C26
D25D26
B15
A12
A16
B12C12D12C16B16
A17
D15C15
A15D14
M1
A14B14C14D16
M2K1
M4
M3P4P3R3R2R1L1
U12L13N13R13L10T13T10K14
L12M13M12N12P12T12
U15M11N11R11P16N17N10
AF2
R10
AD3AE3AF3AD4A13
L15M15P15R15
K12
L14
P14
T15
K25T14K15N15
M16
K13
R16R12
R14
U13P13
M14
P11
P10
P17R17
L17
AC14AC15AC19AC20AD19AD17K26W
24B4 D4 D13
A5 E1 C4 E4 A7 B7 C7 D7 A11D11B5 A26
G2 H4 H2 J4 K4 AC17B26
AD8
AE4AF4AC5AD5AE5AF5AD6AE6AF6AE7AF7
AE13
AD7AD16AF17AC7AE16AF16AE15AF15AE14AF14AD14
AE9
AF13
AF12AF11
AD11AC11AF10AE10AD10AF9
AE8
AD9AC9AF8
AF25
AE26AE25AF26
AD23
AF24AE24AD24
K11K23
T11
U17K17
K10L11T17T16L16U11
U16
K16
D23AC4AC6AC8
AC10D22AA4W
4AB4Y4
C13H23J23M23P23L23T23V23R23Y23AA23AB23
W23F23
AD12AD13AD20AC22AC21AE17J24W25D6D8D9D10C11C10
C8C6
A4A2B3D3E3F4F2G1H3H1J3J1
L25
E24
N25
G26G24H26H24J25
P24P26N24N26M25L24
M26M24
N23P25R26R24K24J26H25G23G25F24F25F26
AE22
AF23AE23AF22
AD21
AF21AE21AD22
AE19
AF20AE20AF19
AC18
AF18AE18AD18
Y25Y26
V26
W26
V24V25
T25
T24U26U25
AD25AD26AC24AC25AB26AA24AA25AA26Y24AB25AC26AB24
U24U23L26
DHSYNC
DENABLE
TXA3
+
DCLK
DVSYNC
RX3570R
0RRX358
0RRX359
DORE
D4
0RRX360
TXAC
-
0RRX361
0RRX362
0RRX363
TXA0
+TX
A0-
0RRX365
DOBL
U4
0RRX366
0RRX364
0RRX367
0RRX368
DOBL
U7
0RRX369
GND
0RRX356
0RRX370
TXB0-0R
RX371
0RRX372
0RRX373
TXB1+
BX004
9
8
7
6
5
4
3
2
16
15
14
13
12
11
10
1
AVSYNC
AHSYNC
0R
RX116
EDIDEDID
0R
RX374
VGA_5V0
RXD
TXD
FSCLK+ AND FSCLK-SHOULD BE ROUTED LIKE A DIFFERENTIAL PAIR
VGA_CAB
PPWR
PBIAS
IFC228
RGB
FROM
VGA
/DVI
TCLK
XTAL
to LCD PANEL
LAYOUT IMPORTANT NOTES:
PLACE SERIES TERMINATION RESISTORS ON BIDIRECTIONAL LINES FSDATA AND FSDQS MIDWAY BETWEEN GM1501 AND K4D263238M
MAX TRACE LENGTH FOR FS ( DATA, ADDR AND OTHER FS ) IS 2.5 INCHES
MINIMIZE TRACE LENGTH DIFFERENCE BETWEEN FSDQS AND FSDATAS AND AMONG DATA LINES
PLACE SERIES TERMINATION RESISTORS ON ALL FSADDRESS AND FS CONTROL LINES NEAR K4D263238M
UNLOADED TRACE IMPEDANCE ONTHIS INTERFACE IS 90 OHM , LOADED TRACE IMPEDANCE WITH DRAM LOAD IS 65 OHM
CATER FOR EXT RESET
SCALER MODULE
CATER FOR 8BIT INPUT
CATER AS GPIO (INPUT) PORT
OCM
ADDR
(0..
19)
OCM
DATA
(0..
7)
SV_I
NPUT
TMDS
FSADDR(0..11)
FS
FSDA
TA(0
..31
)
DVI/V
GA_I
NPUT
24_BIT_ADC
PLACE NEAR IX001
PLACE NEAR BX004
CIRCUIT DIAGRAM SCALER BD
EDID
SV_INPUT
0RRX375
0RRX376 VGA_SCL
GND
GND
VCC_PANEL
DVI_
SDA
SCALER_GM1501 IFC228
SCALER SCHEMATIC DIAGRAM - SCHEMA DE LA PLATINE SCALER - SCHALTBILD SCALER - SCHEMA DELLA PIASTRA SCALER - ESQUEMA DE LA PLATINA SCALER
IFC228-LCDFirst issue 08 / 04
6V0
GND
OCMADDR11
3V3_DIG
3V3_LBADC
GND
FSD22FSD21FSD20
FSD16FSD17FSD18FSD19
FSD1FSD0
FSD2
FSD6FSD5
FSD7
FSD31FSD30FSD29FSD28
FSD4
FSD3
FSD24
FSD26FSD25
FSD12
FSD14FSD15
FSD13
FSD8FSD9FSD10FSD11
FSD27
FSBKSEL0_
FSCKE_/FSRAS_/FSCAS_/FSWE_
FSDQM3_FSDQM1_FSDQM2_FSDQM0_
FSCLK-
FSAD7FSAD6FSAD5
FSAD4FSAD9FSAD11FSAD10
FSAD3FSAD2FSAD1FSAD0
OCMADDR17
OCMADDR14
OCMADDR13
OCMADDR8
OCMADDR9
OCMADDR19
OCMADDR10
OCMADDR16
OCMADDR12
OCMADDR7
OCMADDR6
OCMADDR2
OCMADDR1
OCMADDR3
OCMADDR4
OCMADDR5
OCMADDR15
OCMADDR18
OCMDATA6
OCMDATA5
OCMDATA4
OCMDATA3
OCMDATA2
OCMDATA0
OCMDATA1
OCMADDR0
OCMDATA7
/ROM_CS
/OCM_WE
1V8
2V5
FSDATA9FSDATA8
FSDATA15
FSDATA13FSDATA12
FSDATA11FSDATA10
FSDATA14
3V3_LVDS3V3_LVDSB3V3_LVDSA3V3_ADC
3V3_PLL3V3_DVI
2V5_DDR1
PBIAS
FSVREFFSADDR3FSADDR2FSADDR1FSADDR0
FSADDR4FSADDR9FSADDR11FSADDR10
FSDATA21
FSDATA4
FSDATA20
FSDATA26FSDATA27
FSDATA28FSDATA29FSDATA30FSDATA31
FSDATA0FSDATA1FSDATA2FSDATA3
FSDATA5FSDATA6FSDATA7
FSDATA16FSDATA17FSDATA18FSDATA19
FSDATA23FSDATA22
FSDATA24
FSADDR7FSADDR6FSADDR5
FSBKSEL0
FSCKE/FSRAS/FSCAS/FSWE
FSDQM2FSDQM0
FSBKSEL1
FSADDR8
FSDATA25
FSBKSEL1_
FSDQM1FSDQM3
FSVREF
FSD23
3V3_LVDSA
3V3_PLL
3V3_DVI
3V3_ADC
3V3_LVDSB
3V3_LVDS
3V3_LBADC
3V3_DIG
2V5_DDR1
2V5_DDR2
2V5_DDR2
PWM0
1V8_DVI
1V8_ADC
1V8_CORE
3V32U2 0.5A
LX012
2U2 0.5ALX013
2U2 0.5ALX004
2U2 0.5ALX005
2U2 0.5ALX006
2U2 0.5ALX007
2U2 0.5ALX008
2U2 0.5ALX009
2U2 0.5ALX010
2U2 0.5ALX014
RGP15G
DX002
39R
0.25
WRX
057
10KRX064
10K
RX06
3
10KRX062
100N
CX028
RGP10GDX003
100N
CX035
100N
CX013
100N
CX014
100N
CX015
100N
CX016
100N
CX017
100N
CX018
100N
CX019
100N
CX020
100N
CX021
100N
CX022
100N
CX023
100N
CX024
100N
CX025
100N
CX026
100N
CX116
100N
CX115
100N
CX052
100N
CX051
100N
CX050
100N
CX049
100N
CX048
100N
CX047
100N
CX046
100N
CX045
100N
CX044
100N
CX043
100N
CX042
100N
CX041
100N
CX040
100N
CX039
100N
CX055
100N
CX056
100N
CX057
100N
CX058
100N
CX059
100N
CX060
100N
CX061
100N
CX062
100N
CX063
100N
CX064
100N
CX065
100N
CX066
100N
CX067
100N
CX068
100N
CX086
100N
CX085
100N
CX084
100N
CX083
100N
CX082
100N
CX080
100N
CX081
100N
CX079
100N
CX078
100N
CX077
100N
CX076
100N
CX075
100N
CX074
100N
CX073
100N
CX072
100N
CX088
100N
CX089
100N
CX090
100N
CX093
100N
CX094
100N
CX095
100N
CX096
100N
CX097
100N
CX098
100N
CX099
100N
CX113
100N
CX114
100N
CX117
100N
CX112
100N
CX111
100N
CX110
100N
CX108
100N
CX107
100N
CX106
100N
CX104
100N
CX103
100N
CX102
100N
CX101
10K 1%RX050
10K 1%
RX049
100NCX010
GND
10KRX220
10KRX222
10KRX223
10KRX224
10KRX225
10KRX226
10KRX227
10KRX228
10KRX056
10KRX055
VAL?RX221
10KRX229
10KRX231
10KRX232
10KRX233
10KRX235
10KRX234
OCM
ADDR
18
OCM
ADDR
16
OCM
ADDR
15
OCM
ADDR
12
OCMADDR7
OCMADDR6
OCMADDR5
OCMADDR4
OCMADDR3
OCMADDR2
OCMADDR1
OCMADDR0
OCMDATA0
OCM
DATA
1
OCM
DATA
2
OCM
DATA
3
OCM
DATA
4
OCM
DATA
5
OCM
DATA
6
OCMDATA7
/ROM_CS
OCMADDR10
/OCM_RE
OCMADDR11
OCMADDR9
OCMADDR8
OCMADDR13
OCMADDR14
OCM
ADDR
17
/OCM
_WE
3V3_
DIG
/OCM_RE
AM29LV040BIX004
16
15
14
13
12
11
10
9
8
32
31
30
29
28
27
25
26
24
23
22
21
20
19
18
17
7
6
5
4
3
2
1
22UFCX027
100UFCX034
100UFCX033
100UFCX032
22UF
CX011
22UF
CX012
22UF
10V
CX109
22UF
10V
CX105
22UF
10V
CX100
22UF
10VCX087
22UF
10V
CX092
22UF
10VCX071
22UF
10VCX070
22UF
10VCX054
22UF
10VCX053
22UF
10VCX038
22UF
10VCX037
32 PIN PLCC SOCKETIX015
4 303132
26
27
28
29
20191817161514
13
12
25
24
23
22
21
11
10
9
8
7
6
5
3 2 1
0RRX
238
FSAD8
3V3_DIG 1V8_DVI
FSCLK+
FSDQS
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
1V8_ADC
GND
1V8_CORE
100N
CX069
100N
CX091
100N
CX196
100N
CX197
K4D263238M-QC55IX003
81828384858687888990919293949596979899100
80 79 78 77 76
75747372717069686766656463626160595857565554535251
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 503029282726
25242322212019181716151413121110987654321
143R
RX04
8
10KRX230
10KRX252
IN OUTLD1117DT18
IX006IN OUT
LD1117DT33IX005
4K7RX060
100K
RX058
2U2 0.5ALX011
2U2 0.5ALX015
FB 3AMP
LX01633R RX034
5678
4321
33R RX0355678
4321
33R RX0365678
4321
33RRX037
5678
4321
33RRX038
5678
4321
33RRX039
5678
4321
33RRX040
5678
4321
33RRX041
5678
4321
33R RX0475678
4321
33R RX0465678
4321
33R RX0455678
4321
33R RX0445678
4321
33R RX0435678
4321
33R RX0425678
4321
BC846BTX002
BC846BTX003
2U2 0.5ALX024
2K2
RX06
1
10K
RX05
9
0RRX012
0RRX
351
0RRX
350
BC846BTX005
BC846BTX001
270R
RX3
52
FSDA
TA(0
..31
)
FSFSADDR(0..11)
OCM
ADDR
(0..
19)
OCM
DATA
(0..
7)
to ICclose
**
CIRCUIT DIAGRAM SCALER BDIFC228
(DDRAM)TQFP-100
place
FLASH
OCMADDR18
SCALER MODULESCALER BOARD REGULATOR/POWER
OCMADDR19
OCMADDR16
OCMADDR15
OCMADDR13
OCMADDR14
OCMADDR17
OCMADDR12
OCMADDR11
OCMADDR10
OCMADDR9
OCMADDR8
OVERLAPPING WITH IX004 ( FLASH MEMORY) 32 PIN PLCC SOCKET TO BE PLACED
SOCKET FOR FLASH
CONNECT CAP FROM EACH GM1501 SUPPLY PIN BALL TO GROUND
MID
WAY
IN B
ETW
EEN
IX00
1 AN
D IX
003
PLAC
E RX
024,
RX0
34 -
RX04
1 IN
MAX
LEN
GTH
FOR
FS (D
ATA,
ADD
R AN
D FS
LIN
ES) I
S 2.
5 IN
CHES
MIN
IMIZ
E LE
NGTH
DIF
F. B
ETW
EEN
FSDQ
S,FS
DATA
S AN
D DA
TA L
INES
FSCL
K+ A
ND F
SCLK
-SHO
ULD
BE R
OUTE
D LI
KE
DIFF
EREN
TIAL
PAI
R
PLAC
E RE
SIST
ORS
RX04
2-RX
047
NEAR
IX00
3
BX00
7
987654321 10
UFCX
030
47UF
CX19
2
5V0
470NCX031
4V0
47UF
CX02
9
0RRX386
0RRX801
PANEL_VPANEL_V
SCALER_GM1501 IFC228
PL 032 PACKAGE
MEMORY
SCALER SCHEMATIC DIAGRAM - SCHEMA DE LA PLATINE SCALER - SCHALTBILD SCALER - SCHEMA DELLA PIASTRA SCALER - ESQUEMA DE LA PLATINA SCALER
IFC
228-LC
DF
irst issue 08 / 04
GND
GND
RXD
GND
5 6 7 8
4 3 2 1
VGA_SCL1
VGA_SDA1
REDGREEN
GND
GND
GND
GND
GNDGND
VGA_HSYNC
VGA_VSYNC
BLUE
3U3LX018
3U3LX019
BAV99LDX010
VGA_CAB
100R RX126
0RRX128
10KRX130
0RRX129
10KRX137
75RRX138
75RRX140
10RRX133
10RRX132
1KRX134
1KRX135
121110
1141398
67 5 4 3 2
MM
SZ6V8T1DX006
MM
SZ6V8T1DX007
BAV99LDX009
3U3LX020
100NCX166
75RRX142
470R
RX145
BAV99LDX008
10KRX127
BAV99LDX004
BAV99LDX005
GND
7 1 610 9 8
11
4
17 16
15 14 13 12
5 3 2
10NFCX165
10NFCX164
10NFCX163
22RRX139 22R
RX141
22RRX143
100N
CX162
100KRX136
100R RX278 10K RX279
100NCX301
100NCX303
100NCX304
TXD
0R RX280
UART_TX
UART_TX
0R
RX301°UART_RX
UART_RX
100NCX300
100NCX305
0RRX300°
0RRX302
0RRX303UART_TX_1
UART_RX_1
CSCL
CSDA
CIRCUIT DIAGRAM SCALER BD
IFC228
SCALER MODULERS232 LINE DRIVER/RECEIVER
0R RX802RS232 DRIVER/RECEIVER
IX300
6 5 4 3 128 7
161514131211109
5V0
SCALER_GM1501 IFC228
SOME M
ODELS°
VGA_5V0
M24CO2-W
MN6
IX012
GREEN+
BLUE+
VGA_SCLVGA_SDA
AVSYNC
AHSYNC
RED+
5V0 5V0
5V0
74HCT14T/DIX013
SOG
DB15HD_VBX011
EDID
VGA-RGB
VGA_INPUTDVI/VGA_INPUT
SC
AL
ER
SC
HE
MA
TIC
DIA
GR
AM
- SC
HE
MA
DE
LA
PL
AT
INE
SC
AL
ER
SC
HA
LTB
ILD
SC
AL
ER
- SC
HE
MA
DE
LL
A P
IAS
TR
A S
CA
LE
RE
SQ
UE
MA
DE
LA
PL
AT
INA
SC
AL
ER
IFC228-LCDFirst issue 08 / 04
!
GND
VAL?
RX256
GNDGND
GNDGND GND
GND GND GND
GND GND
GND
DGB1
DGB2
DGB3
DGB4
DGB5
DGB6
DGB7
DGG0
DGG1
DGG2
DGG3
DGG4
DGG5
DGG6
DGG7
VVS
VCLK
VHS_CSYNC
DGR0
DGR1
DGR2
DGR3
DGR4
DGR5
DGR6
V_CLAMP
GND
1UFCX160
2K7RX066
2K7RX065
100NCX036
GSOGIN
ADCKGFILT
ADVS
ADHS
GGIN
GREFBYP
V33_3V3
GBIN
100NCX173
100NCX175
100NCX176
100NCX177
100NCX178
100NCX179
100NCX180
39NCX182
100NCX183
100NCX184
100NCX185
1UF
CX187
100NCX191
SDA_ADC
47RRX147
5
8
4
1
47 RRX148
5
8
4
1
47RRX149
5
8
4
1
47RRX150
5
8
4
1
47RRX151
5
8
4
1
47RRX1525
8
4
1
LX021 10UH
LX022 10UH
LX023 10UH
100NCX170
100NCX171
100NCX172
3N9CX181
3K3RX155
RX157
100R0
RX156100R0
RX15
9
100R
0
DVDD_3V3
1UF
CX186
0RRX
208
RX15
810
0R0
GMIDV
AVDD_3V3
VAL?
RX20
9
0RRX21
6
47RRX153
5
8
4
1
4K7
RX110
5
6
7
8
4
3
2
1
DGB0
47UFCX169
47UFCX174
DGR7VODD
GND
VS S
A1
VCCA0
A2
SI
SCK
WP
213483601
7
8
63
2
54
BC846BTX004
0RRX217
VSYNC
0RRX253
GND
1NCX189
0RRX254
1UFCX1900RRX255
4K7RX259
4K7RX262
GND
100K0RX264
RX266100K0
220P0CX200
CX202220P0
220P0CX203 CX207
330P0
RX263100K0
VGA_R_IN
VGA_L_IN
GND
DVI_L_IN
DVI_R_IN
GND
CX204330P0
RX2604K7
330P0CX206
CX201220P0 330P0
CX205
RX2614K7
100K0RX265
DVI_
VGA_
AUD
BX015
5
4
3
2
1
Red
Whi
Red
Whi
123
45678
DVI_VGA_AUDBX016
47K
RX11
1
SOG_ADC
GRIN
21341310
61
60
40
1
646362 65
24 23 22 212534 32 31 30 26
52515049
4748
464544
3536373839
414243
33 29 28 27
121314151617181920
111098
5
76
432
53545556575859
66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
HSYNC
SCL_ADC
GND
RED_IN
GREEN_IN
BLUE_IN
VAL?RX257
VAL?RX258
33PF
CX213
33PF
CX215
33PF
CX217
2P2F
CX2122P2FCX214
2P2FCX216
LX0302U2H
LX0312U2H
LX032
2U2H
3.15A,125V
D
D
D
S
S
G
S D
PVDD
A0
SDASCL
CLAMP
AVDD
GCOAST
6
5
4
3
2
1
3.15
A
FZX0
02
8
7
6
5
4
3
2
1
6
7
8
3
2
1
D
D
D
S
S
G
S D
IX014AD9883A
CIRCUIT DIAGRAM SCALER BDIFC228
SCALER MODULE
USE IFC228 CI ( 028 ) ONLY
SCALER_GM1501 IFC228
3V3
MST
R_SC
L
MST
R_SD
A
SVDV
24_BIT_ADC
TO G
ENCA
M IC
GM_INTERRUPT
GM_BUSY
BX012
TO M
AIN
BOAR
DBX
013
PPWR
5V0
MSTR_SCLMSTR_SDA
VCC_PANEL
PANEL_V
PANEL_V
NTTS2P02R2IX009M24C32-WMN
IX007
DEV?IX301
SCALER SCHEMATIC DIAGRAM - SCHEMA DE LA PLATINE SCALER - SCHALTBILD SCALER - SCHEMA DELLA PIASTRA SCALER - ESQUEMA DE LA PLATINA SCALER
IFC228-LCDFirst issue 08 / 04
POWER SUPPLY CIRCUIT BOARD - CIRCUIT IMPRIME DE L’ALIMENTATION - LEITERPLATTE NETZTEIL - PIASTRA DEI CIRCUITI DI ALIMENTAZIONE - PLATINA ALIMENTACIÓN
CP21
5
CP233
CP222
DP237
DP273
CP23
7
CP23
9
CP268
WP235A
BP251B BP251A
BP008A
BP008B
TP321
S
D
G
TP220
S
DGTP322
S
D
G
DP261
TP205E B C
TP22
3
EB
C
CP22
0
LP220
DP23
3
DP240
DP22
7
DP250
DP260
DP301
DP32
5
DP32
3
DP22
5
DP22
6
FP25
1
LP225
CP258
BP22
2
1
BP32
01
LP250
CP250
CP25
1
CP322
CP32
1
RP22
0
RP32
8
CP254CP256
CP255
CP325
DP205DP206
CP20
4
CP20
1
CP203
CP391
CP236CP38
2
CP371 CP381
CP202
DP254
DP255
DP253
DP204
DP201
DP37
1
DP39
1
DP39
2DP
372
DP218
DP252
FZP204
FZP2
01
FZP2
05
FZP301
FZP206
FZP371
FZP3
91
FZP2
03
FZP2
07 FZP208
CP22
6
IP27
1
IP26
1
IP20
1
IP20
2IP351
IP30
3
IP203
CP259
BP220A
1DP203
DP381
DP32
6
DP32
4DP
328
DP36
1
TP22
2EB
C
TP261
EB
C
TP27
1
EB
C
RP23
3
RP231
RP20
7
RP22
1
RP208
CP240
CP206
CP207
CP209
CP20
8
CP271CP210
CP224CP225CP
302
CP315 CP328
CP301
CP247
CP205
RP227
IP25
1
1
IP31
0
1
IP30
2
1
RP205
RP20
9
DP24
7
DP230
BP220
1
RP30
1
RP30
2
RP22
6
RP22
8
RP23
8
RP23
0
RP24
0
RP25
7
RP32
5RP32
6
RP32
4
RP32
3
RP327
RP36
1
RP258
RP29
3
JP30
6
JP31
5
JP31
3
JP30
2
JP31
2
JP31
1
RP251
RP22
5
JP211
JP304
JP22
7JP
226
JP22
2JP
235
JP30
3
BP22
6A1
BP22
6C
1
BP226B
1
BP2531
TP20
4
SDG
TP202
SD
G
TP30
2
SD
G
TP20
1S
DG
TP20
3S
DG
LP25
3
LP300
JP20
1
JP30
1
BP2041
BP20
3
1
BP3211
IP30
0
1
21394150
DP203A
TP322A
5.0A
_125
V(US
)
T3.15A_125V
T2.5
AL_2
50V(
EURO
PE)
T0.5A_125V
T0.5A_125V
T3.15A_125V
T3.1
5A_1
25V
T0.5A_125V
T3.1
5A_1
25V
T1.0
A_12
5V
T1.0A_125V
T3.1
5A_1
25V
PCB SMPS 100 IFC228
BARCODEtt
BP251
FP25
1A
FP25
1B
COMPONENT SIDE - COTÉ COMPOSANTS - BESTÜCKUNGSSEITE - LATO COMPONENTI - LADO COMPONENTES
IFC228 (SMPS 100)
IFC228-LCDFirst issue 08 / 04
POWER SUPPLY CIRCUIT BOARD - CIRCUIT IMPRIME DE L’ALIMENTATION - LEITERPLATTE NETZTEIL - PIASTRA DEI CIRCUITI DI ALIMENTAZIONE - PLATINA ALIMENTACIÓN
COMPONENT SIDE - COTÉ COMPOSANTS - BESTÜCKUNGSSEITE - LATO COMPONENTI - LADO COMPONENTES
IFC228 (SMPS 200)
IFC228-LCDFirst issue 08 / 04
Part of board connected to mains supply.Partie du châssis reliée au secteur.Primärseite des Netzteils.Parte dello châssis collegata alla rete.Parte del chassis conectar a la red.
Use isolating mains transformer.Utiliser un transformateur isolateur du secteur.Einen Trenntrafo verwenden.Utilizar un transformador aislador de red.Utilizzare un transformatore per isolarvi dalla rete.
Achtung :Bei Messungen im Primärnetzteil- Primärnetzteilmasse verwenden ( ).
Note :Power Supply primary circuit measurements.- Use only ( ) connection point.
Attention :Mesure dans la partie primaire de l'alimentation- Utiliser la masse du bloc alimentation ( ).Attenzione :misure nell'alimentatore primario - usare massa alimentazione primario ( ).
Cuidado :Medida en el bloque de alimentacion- Utilizar la masa del bloque de alimentacion ( ).
Safety PartWhen repairing, use original part onlyPièce de securitéN'utilisez que les pièces d'origine
Utilice solo piezas originalesBei Ersatz nur Originalteil verwendenSicherheitsbauteil
Pieza de seguridad
Per la riparazione utilizzare solo componenti originaliComponenti di sicurezza
EARTH
BP251A
BP251B
6.5V
LP253_P1
BP251
BP226B
BP226C
VCC1
6V
V_PRI
BP226A
33V
20.5V
20V
AC2
RAW_B+
20V
10.5V
45V20.5V
6.5V 20.5V
6.5V
PO
5VSTBY
POWER_FAIL
3.3VSTBY
AC1
10.5V
10V
20V
BURST
5VSTBY
10.5V!
!
!
!!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
! !
G
D
S
GD S
G
D S
G
D SG
D S
!
!
!
SMPS 200 IFC228
*
*
(US) 10N60
*
TO PUSH SWITCH MODULE
SecondaryPrimary
* VALUE MAY CHANGE ACCORDING TO SPECIFIC REQUIREMENT
WP235A
LIVENEUTRAL
16
7
5
2
3
4
9
10
11
12
13
15
14
6
1
8
LP253TFSMT60
CP22522U0
T1.00A 125VFZP207
CP209220UF
CP207220UF
CP208220UF
CP206220UF
CP2682N2F BC548B
TP407
BC548BTP222
CP23610U0F
12
BP204
DP260BZX55B6V2
DP414BZT55C8V2
RP41410k
RP413
2K2
1
2
3IP202
TL431
TP495BC858B
LP250
CP253100NF
FP251T2.5A 250V
1234
65 7 8
LP251
STP22NF03LTP202
CP438180P0
RP48622K
CIRCUIT DIAGRAM SMPS 200 IFC228
STP22NF03LTP204
STP22NF03LTP203
STP22NF03LTP201
1
3
2(EU)6N90
TP220
RP2200R68
DP254GP30M
12
12
34
65
78
LP252
RP257220K
T0.50A 125VFZP206
BC548BTP271
TP205KTC8550D
DP250BZX55B3V9
RP4012K2
RP483845R0
RP4842K1
CP48310N0F
1
2
3IP201TL431
T3.00A 125VFZP203
RP4196K2
RP4183K92
RP4172K2
CP48510N0F
1
2
3IP203TL431
CP2031500U/35V
CP2021500U/35V
1 2
T1.00A 125VFZP208
RP4152K43
RP4162K1
RP4042K2
CP484
10N0F
12
BP203
CP2041MIO
12
DP204SR560
RP44815K
CP2474U7F
DP247RGP15G
T3.00A 125VFZP204
RP2094K71W
DP206RGP15G
RP2072K2
CP4811N5F
RP2083K3
JP420
CP21022U0F
RP4853K9
RP205390R02W
DP205RGP15G
CP20522U0F
T0.50A 125VFZP205
RP47122K0
RP4722K2
RP4732K2 CP271
22U0F
DP471BZT55C4V7
DP472BZT55C3V9
RP475100K0
RP47633K01
2
3
IP271TL431
RP47422K0
RP4616K2
1
2
3IP261TL431
RP4623K92
DP273BAV21
RP4702K2
RP4685K6
RP4672K7
1
23
4
IP251TCET1103G
DP230BZX55C8V2
RP2301K0
CP2201N5
LP2203U3
CP2331N0
RP23347K0 DP233
15V
RP23110R0
RP22822R0
RP4922K2
RP22122R0
RP2273K3
12
BP253
TP223KTC8550D
RP2262K7
CP222470P0
CP24010U0
RP44147K0
RP2402K2
DP240BZX55B27
DP237BAV21
RP29322K0
RP238470R0
CP239180P0
CP2371N5
CP22422U0
DP227BZX55B24
RP49522K0
DP493BZT55C8V2
CP493470P0
RP49410K
CP226330P0
DP225RGP10G
DP226RGP10G
LP2251U5
RP258220K
DP255GP30M
CP2561N5
CP2551N5
DP252GP30M
CP2541N5F
DP253GP30M
CP251100NFRP251
470K
CP252100NF
RP22510M
GNDGNDGND
GND
GND
GND
GNDGNDGND
GND
GND
GND
GND GNDGND
GND
GND GND
12
CP2152N2
JP453
GND
H
10.5V
H GND
H
H
H
H
H
H
H
GND GND
GND GND
GND
GND
GND GND
GND
GND
GND
GND
GND
GND
GND
GND
CP209220UF
GND
DP203STPS30150CT
CP48610NOF
GND
BC548BTP261
RP4644K7
DP261BZX55C8V2
RP4632K2
RP462
CP46110N0F
RP4692K2
RP46510K
RP466100R0GND
GNDGND
POWER SUPPLY - ALIMENTATION - NETZTEIL - ALIMENTAZIONE - ALIMENTACIÓN
IFC228-LCDFirst issue 08 / 04
!
!
!
!
!!
!
!
!
!
!
CSS
CF
OPOUT
RFMIN
OPIN+
EN1
VBOOT
HVGRFSTART
OUT
N.C.
VS
EN2
OPIN- LVG
GND
!
G
S
D
IAC
VP
CA_OUT
LFF
VRMS
MULT_OUT
ISENSE
SGND VREF
SS
VA_OUT
VFEED
UVLO
FREQ_MOD
ROSC
COSC
VCC
GDRVPGND
IPK
G
S
D
G
S
D
!
G
D S
G
D S
!
!
( To Inverter Board)
SecondaryPrimary
SMPS 200 IFC228
CP3911000U/25V
25
LP300_P6
LP300_P2
CP3711000U/25V25V
CP3821500U/35V
CP3811500U/35V
LP300_P14
LP300_P15
LP300_P11
LP300_P10
CP708470U400V
CP5122N2
RP833330K
LP7223U3
CP551100N
16
8
7
6
5
1
2
3
4
9
10
11
12
13
1514
3K92/1%RP554
CP7272N2
STPS30150CTDP381
CP81910N
CIRCUIT DIAGRAM SMPS 200 IFC228
STP22NF03LTP751
STP22NF03LTP302
H
H
DP392BYW98-200
DP744_CDP744_A
TP32114NK50
RP826330K
RP827330K
RP828330K
DP361BZX55830RP562
4K7
RP3612K2
BC548BTP361
RP56310K0
1
23
4
RP55326K7
DP391BYW98-200
FZP371
T3,00A 125VDP371
BYW98-200
DP372BYW98-200
TP7202SK2837
RP7514R7,10W
DP721STTH8R06FP LP721
3U3
RP7294R7,10W
CP7222N2
GP30MDP744DP743
GP30M
16
8
7
6
5
1
2
3
4
9
10
11
12
13
1514
LP700
RP832330K
DP720BZX55C201K
RP722
DP724RGP15G
RP721
4R7LP7163U3
CP74110UCP812
4N7 RP81212K
RP84333K
RP834330K
RP83713K7/1%
RP839100R0
RP818
39K
CP818220NRP840
22K1N4148DP808CP814
100N
CP7111U50V
RP844220K
RP80622KCP806
100N
RP8134K7
RP8148K2
RP84756K
RP81682K
CP81647N
RP8174K7
CP81310N
RP804100KRP723
0R27 ; 3W
RP803330K
RP802330K
RP801330K
CP701470N
RP807330K
RP808330K
RP809330K
RP83112K
3
6
8
11
12
13
14
15
16
17
18
20
19
7
5
9
1
2
4
10
RP5513K9
RP5523K3
1
23
4
RP51256K
1
1
2
2 1 21 2
3IP351TL431
RP5550R
DP326(PREP)
RP32539R
DP325RGP10G
CP325100N
RP52110K
CP32822U0F
DP323RGP10G
RP32339R
DP324(PREP)
DP328(PREP)
RP328R100/3W
RP32410K
RP32610K
TP32214NK50
CP32116N8 CP322
16N8
CP75122U0F
RP85122K
BC548BTP752
RP8523K9
1
2
3IP751TL431
CP85210N0
RP8533K92
RP85415K
DP751RGP10G
FZP301T0.5A 125V
DP301RGP10G
CP30122U0F
RP30122K
1
2
3
IP303TL431
BC548BTP303
RP3023K9 CP503
10N0
CP30222U0F
RP50315K
RP5043K92
DP7538V2
CP75322U0F
CP85510N0
RP855
22K
RP8562K2
TP753BC548B 100N
CP518 RP5105K1
RP5164K3
RP519
33K
RP51139K
CP516680P
RP51727K
CP3154U7
1
3
56
4
7
8
16
152
14
13
12
9
11
10
1
2
3
4
1
2
34
5
6
7
8
9
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
10
H
1
2
3
4
5
6
GND
GND
GND
GND
H
CP817220P
CP803220N
RP3271K
RP515110K
PO
H
H
H
H
H
H
GNDH
GND GNDGND
H
H
H
H
H
H
H
H
H
GND
GND
H
GND
GND
GND
DP382STPS30150CT
H
HH
HH
GND
GND
5
3
2
8
4
67 1
1N5822DP352
1N5822DP351
JP352
JP351
CP351220UF
CP385220U/35V
CP386220N
RP58520K
CP5852N7
CP587100N
CP58622N
RP5869K1
CP588100N
DP386SR560
LP385125U
CP388220UF
RP5884K7
RP5872K7
GND
GND
5VA
5VB
4V
HEATSINK
L6598
PFC200
HEATSINKHEATSINK
( To Scaler Board) (To Signal Board BP002)
( To Signal Board BP001)
( To Audio Board)
DP203AHEATSINK
+UA
TP720A
LP300TFSMT26E250
TP322A
IP302TCET1103G
AC2
L4891BIP710
IP310TCET1103G
IP300
BP321 BP222 BP220A BP220
DP381A
BP320
V_PRI
RAW_B+
+VSSIN
4V
RAW_B+
RAW_B+
AC1
+VSSIN
-UA
5VB
5VA
33V
4V
VON/OFFVBRI
ECO_STBYBURST
SAFETYPOWER_FAIL
3.3VSTBY5VSTBY
20V
10V
-UA
+UA
6V
+VSSIN
VBRIVON/OFF
L4978IP385
6V
5VA
+VSSIN
Part of board connected to mains supply.Partie du châssis reliée au secteur.Primärseite des Netzteils.Parte dello châssis collegata alla rete.Parte del chassis conectar a la red.
Use isolating mains transformer.Utiliser un transformateur isolateur du secteur.Einen Trenntrafo verwenden.Utilizar un transformador aislador de red.Utilizzare un transformatore per isolarvi dalla rete.
Achtung :Bei Messungen im Primärnetzteil- Primärnetzteilmasse verwenden ( ).
Note :Power Supply primary circuit measurements.- Use only ( ) connection point.
Attention :Mesure dans la partie primaire de l'alimentation- Utiliser la masse du bloc alimentation ( ).Attenzione :misure nell'alimentatore primario - usare massa alimentazione primario ( ).
Cuidado :Medida en el bloque de alimentacion- Utilizar la masa del bloque de alimentacion ( ).
Safety PartWhen repairing, use original part onlyPièce de securitéN'utilisez que les pièces d'origine
Utilice solo piezas originalesBei Ersatz nur Originalteil verwendenSicherheitsbauteil
Pieza de seguridad
Per la riparazione utilizzare solo componenti originaliComponenti di sicurezza
POWER SUPPLY - ALIMENTATION - NETZTEIL - ALIMENTAZIONE - ALIMENTACIÓN
IFC228-LCDFirst issue 08 / 04
POWER SUPPLY CIRCUIT BOARD - CIRCUIT IMPRIME DE L’ALIMENTATION - LEITERPLATTE NETZTEIL - PIASTRA DEI CIRCUITI DI ALIMENTAZIONE - PLATINA ALIMENTACIÓN
COMPONENT SIDE - COTÉ COMPOSANTS - BESTÜCKUNGSSEITE - LATO COMPONENTI - LADO COMPONENTES
IFC228 (SMPS 300)
TE
CH
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AL
GU
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TE
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NIQ
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UL
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ICA
No copying, translation, modification on other use authorized. All rights reserved worldwide. • Tous droits de reproduction, de traduction, d'adaptation et d'exécution réservés pour tous les pays. • Sämtliche Urheberrechte an diesen Texten und Zeichnungen stehen uns zu. Nachdrucke,Vervielfältigungen - auch auszugsweise - nur mit unserer vorherigen Zustimmung zulässig. Alle Rechte vorbehalten. • I diritti di riproduzione, di traduzione, e esecuzione sono riservati per tutti i paesi. • Derechos de reproduccion, de traduccion, de adaptacion y de ejecucion reservados para todos los paises.
LC
D - 12/04 - C
ode : 358 893 50
IFC
228 LC
D
23” - 27” - 32”
TV
THEIFC228 LCD
CHASSIS
CONTENTS
POWER SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 1
CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 19
VIDEO / RGB / YPrPb / VGA / DVI SWITCHING . . . . . .Page 31
VIDEO SIGNAL PROCESSING . . . . . . . . . . . . . . . . . .Page 41
AUDIO PROCESSING . . . . . . . . . . . . . . . . . . . . . . . . . .Page 51
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . .Page 59
CENTRE DEFORMATION THOMSON
CENTRE DEFORMATION THOMSON
CONTENTS
OVERALL SCHEMATIC OF POWER SUPPLIES . . . . . . .Page 3
THE FROSIN POWER SUPPLY . . . . . . . . . . . . . . . . . . .Page 5
SECONDARY SWITCHING . . . . . . . . . . . . . . . . . . . . . .Page 7
FROSIN POWER SUPPLY PROTECTION CIRCUITS . . .Page 9
RESONANT POWER SUPPLY . . . . . . . . . . . . . . . . . . .Page 11
SECONDARIES AND PROTECTION . . . . . . . . . . . . . .Page 13
DYNAMIC CIRCUIT CONCEPT (PFC) . . . . . . . . . . . . . .Page 15
POWER FACTOR CORRECTION CIRCUIT . . . . . . . . .Page 17
POWER SUPPLY
CENTRE DEFORMATION THOMSON
1
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2
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NOTES :OVERALL SCHEMATIC OF POWER SUPPLIES
The power supply to this appliance is located on a dedicated Power SupplyBoard.
It essentially consists of two parts:- the FROSIN power supply, which delivers permanent voltages (control
power supply) as well as switched voltages for any signal processing carried outon the main board, the scaler board, and optionally, the DVD board.
- the resonant power supply which supplies switched VSSIN voltages forthe inverter board (specific power supply circuit for backlighting) as well as +/_UAfor the audio board.
For models that draw a lot of power (27" screen diagonal or bigger), a dynamicpower factor correction circuit is inserted between the rectified mains voltage andthe resonant PS so as to reduce cos phi and the harmonics reinjected into themains circuit.
The IR001 microcontroller located on the main board controls the standby outputvia the PO line. The latter provides switching for the 20 Volts generated by theFrosin power supply, and this voltage in turn activates three other voltages (10V,6V, 4V). Lastly, the 4V voltage starts up the resonant power supply.
The mains voltage is monitored by the microcontroller via the FROSIN powersupply and the INF_POW_FAIL line.
The Genesis circuit on the scaler board controls the start-up of the power supplyinverter via the V On/Off line and controls backlighting brilliance via the SCV briline.
CENTRE DEFORMATION THOMSON
3
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4
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quicker restart), and DP227 provides protection in cases of overvoltage by goingshort-circuit if this happens (disappearance of control current on TP220).
Four unswitched voltages are developed on the secondary:- 33 Volts for the tuner power supply. - 20.5 Volts.- 10.5 Volts powering a 5V regulator for supplying the control voltage
(5VSTBY).- 6.5 Volts, chosen for the secondary regulation; this is the origin of
3.3VSTBY.
Secondary regulation makes use of an opto-coupler (IP251) in series withregulation circuit TL431 (IP261). A fraction of the 6.5V applied to IP261 via adivider bridge (RP261/RP462) is taken and compared with the internal 2.5 Voltreference. Any variation in the 6.5 Volts will therefore tend to modulate the currentin the opto-coupler, and consequently, the instant when TP222 is switched andTP220 is blocked.An acquisition mode is provided by the use of transistor TP261. When the baseof the latter is released by the AQR line leading from pin 113 of IR001, TP261applies a 10.5V image (via DP261) to the regulator input, thus ensuring regulationof this voltage also.In the event of overload of the 6.5 Volts, a protection system short circuits theregulator and saturates the opto-coupler, thus temporarily blocking the choppingtransistor.
NOTES :
THE FROSIN POWER SUPPLY
This power supply, whose concept is in common use in the Group's products,generates the voltages required for standby mode and also delivers switchedvoltages for any "small signal" processing located on other boards.
A mains voltage of between 190VAC and 264VAC is rectified by theDP252/253/254/255 bridge, filtered by condensers CP258/259, then applied inparallel to transformer LP253 in the Frosin power supply and the push-pulltransformer in the resonant power supply (RAW_B+). The MOSFET transistorLP220 and the condenser CP220, in series with the primary of LP253, determinethe primary current. The latter is kept in check by resistance RP220.
The start-up current comes from a single mains phase via resistances RP257and RP 258, via condenser CP225, and via driver transistor TP495. This will onlyswitch when there is a charge of roughly 9 Volts or more coming from CP225,using the threshold effect of zener diode DP493, to ensure clean switching of theMOSFET transistor. Once the power supply is started up, the charge from CP225is obtained from self-powering (winding 6/8 and diodes DP225/226).The on/off switch does not act directly on the mains voltage but simply cuts offthe control current to the MOSFET transistor (connector BP253).
Chopping transistor TP220 is blocked by transistors TP222/223 (on/off circuit),which short-circuit the gate/source space when they are switched. This worksthrough the combined effect of primary current measurement (RP220 andRP231), of regulation from the opto-coupler (IP251), and of the auxiliary circuitsvia resistances RP238, RP293, and RP241:
- RP238 and condensers CP239/438 set the minimum saturation time forTP220.
- DP237 and CP237 time the new saturation of TP220, to limit dissipationby switching.
- CP240 and DP240 correspond to the soft-start and mainscompensation circuits.
Zener diode DP233 protects the gate/source space in TP220, DP230 blocks thesecondary regulation action when the charge on CP225 is too weak (promotes a
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NOTES
SECONDARY SWITCHING ON THE FROSIN POWER SUPPLY
The order to quit standby mode is given from pin 87 of microcontroller IR001 andtransmitted via transistor TR198 and connecters BP001 and BP220A. Theresulting high state on line PO saturates transistors TP407 and TP205 andswitches the 20V voltage when above 20.5V. This voltage will be used in theSCART section but first and foremost it is behind the switching of three othervoltages:
- 10V obtained from the 10.5V voltage through the intermediary ofMOSFET TP204. This voltage supplies 9V and 8V for general audio and videoprocessing on the signal board.
- 6V and 4V via the IP203 and TP203 regulation circuit. These 6 Voltssupply several boards, in particular the 1H/2H IV100 converter on the signalboard. The 4 Volts are intended for the scaler board and starting up the resonantpower supply.
Two other unswitched voltages are also regulated:- 5VSTBY obtained from the 10.5V line by a similar stage to that used in
the 6V and 4V: divider bridge RP415/416 compares a fraction of the outputvoltage with the internal 2.5V reference in regulation circuit IP202, consequentlymodulating the gate voltage of MOSFET TP202.
- 3.3VSTBY obtained from the 6.5V via a regulator assembly which is areplica of the one described above (TP201/IP201).These two voltages are clearly intended for control.
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NOTES :FROSIN POWER SUPPLY PROTECTION CIRCUITS
There is a first safety measure associated with overvoltage, which for examplecould happen because of a cut-off in secondary regulation. As a reminder, theprimary voltage generated by self-powering and applied to condenser CP225 inthis case will also increase. When it reaches 27V it will be limited by zener diodeDP227, whose current starts rising. Beyond a certain threshold, the zener short-circuits, thus removing the control current from chopping transistor TP220.
The second protection system is related to possible overloading or short-circuiting of the 6.5V voltage.At start-up, when secondary voltages are still developing, the time constantRP472/CP271 times the polarisation of transistor TP271, whose base is thenshort-circuited by the conduction of circuit IP271. When the voltage of the 6.5Vline exceeds 3.3V, the reference input of IP271 tends to exceed 2.5V via dividerbridge RP475/476, thus leading to increased conduction in this component andthe continued blocking of TP271. Consequently, in normal working conditions thecurrent in the opto-coupler is controlled solely by regulation from IP261.Now let's assume heavy overloading on the 6.5V line causes this voltage tocollapse below 3.3V. IP271 will then block, thus releasing the polarisation andsaturation of transistor TP271, which in turn will saturate the opto-coupler. Thechopping transistor is blocked this time by on/off circuit TP222/223 and the powersupply closes down.
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This triangular signal is then shaped by the logic stages to control the push-pulloutput, with alternate saturation of TP321 on the up ramp and TP322 on the downramp, condenser CP325 being jointly used with the integrated bootstrapassembly to ensure clean saturation of TP322.
Maximum energy will be transmitted when the control frequency is the resonantfrequency of the primary circuit on transformer LP300 and condensers CP321and CP322, because the load impedance is then lower and the peak currentreaches a maximum value. Increasing the control frequency will consequentlyresult in the lowering of this peak current and thus a reduction in transmittedenergy. Since the control frequency is related to the overall resistance connected to pin4, modulating the conduction of the opto-coupler will give rise to a modification inthe oscillator frequency and thus control the energy transmitted.
Secondary voltage VSSIN is regulated by comparing it via a divider bridge(RP553, RP554) with the internal reference (2.5 Volts) on regulation circuit IP351.When the charge on this line increases, the voltage tends to drop as does thecurrent in the opto-coupler through the action of IP351. The overall resistanceseen from pin 4 therefore increases and reduces the frequency of the oscillatorand the control, which approaches that of resonating circuitLP300/CP321/CP322. The consequence of this, as explained above, is anincrease in transmitted energy.
NOTES :
RESONANT POWER SUPPLY
This second part of the power board supplies energy to the LCD panel in orderto provide power to the backlighting (inverter board) in the form of the voltageVSSIN (19 Volts); it also delivers symmetric voltages +/-UA (+/- 15 Volts) to theaudio power stage.
The core of the primary circuit is the integrated circuit ST L6598, which is adaptedto control an AC/DC converter that uses the principles of resonance and of a half-bridge configuration. In the final stage it comprises two drivers which alternatelyswitch one of two MOSFET transistors. The resonance circuit, which consists ofthe transformer primary and two condensers in series, is connected between theground and the common point of these two transistors.
The power supply source for this circuit is the primary of transformer LP253(V_PRI of the FROSIN stage), rectified by diode DP301 and switched bytransistor TP302.The start-up command signal is the 4 Volts from the FROSIN power supply, thisvoltage being switched by the micro-controller (PO). It saturates opto-couplerIP302, which blocks transistor TP303, thus releasing the polarisation of MOSFETTP302. On the gate of the latter, regulation circuit IP303 coupled with dividerbridge RP503/504 sets voltage Vs (pin 12 of IP300) to roughly 12 Volts (10.7Volts being the start-up voltage).
The oscillator incorporated into this circuit generates triangular waves whosefrequency is determined by the charging and discharging cycles of condenserCP516 (pin 3). The are the effect of currents Ifstart, Ifmin, and the charge on soft-start condenser CP315 (pin 1). Ifstart is linked to RP517 (Ifstart = Vref / RP517with Vref = 2V); Ifmin depends on RP511, RP512, and conduction in opto-couplerIP310.During the first instants of start-up, frequency is a function of the sum of currentsIfmin and Ifstart; then as the latter drops away with the effect of the charge onCP315 (soft start), the frequency does likewise and becomesfmin = 1.41/(RP511 x CP516) = 53kHz (with IP310 blocked).To sum all this up, RP511, RP517, and CP516 set the start-up frequency toroughly 100kHz. This then decreases with the soft start (~= 750msec) and dropsbelow 53kHz to settle down at a value that depends on secondary regulation(conduction in IP310).
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NOTES :SECONDARIES AND PROTECTION OF THE RESONANT POWER SUPPLY
Voltage VSSIN (24 Volts), used for backlighting, is obtained by centre tap dualrectification (double diode DP381), whereas rectifier bridge DP371/372,DP391/392 generates symmetrical voltages +/_ UA for the audio power stage (+/-14 Volts).
A first protection system detects overvoltages on VSSIN via zener DP361 andtransistor TP361. If ever this voltage exceeds 25 Volts, the transistor will saturateand will short circuit opto-coupler IP302, temporarily taking away the powersupply to circuit IP300.A second protection system detects any secondary overloads by checking theprimary current. An image of is this picked up on resistance RP328 and appliedto the non-inverting input of the amplifier built into IP300 (pin 7), then comparedwith a reference voltage of 450mV (Vs and RP515/516). In the event of thisgoing over the mark (peak current more than 4.5A), pin 5 changes to the highstate and activates the comparator (pin 8), which causes the oscillator to stopand blocks the two MOSFET transistors.
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NOTES :DYNAMIC POWER FACTOR CORRECTION (PFC) CIRCUIT CONCEPT.
Screens measuring 27 inches or more consume large amounts of power, makingpower factor correction necessary (PFC) in order to restrict the generation ofharmonics in the mains. A simple rectification circuit draws energy from the mainsonly when the instantaneous alternating voltage exceeds the charge voltage onthe filter head condenser. This takes place at values close to the peak voltage ofeach half-cycle; the result is current spikes whose shape is a long way from thedesired sinusoid (see diagram on left).
In order to achieve this aim, an inductance is fitted between the rectifier bridgeand the filtering condenser. The mean current of this inductance must besinusoidal and in phase with the rectified voltage. To achieve this, a powertransistor Q, controlled at a frequency higher than the mains frequency, chops therectified unfiltered voltage across this inductance. The frequency or the cyclicratio must be proportional to this rectified voltage so as to modulate the peakcurrent following a sinusoidal wave envelope (see diagram on right).
When the transistor is blocked, the induced voltage at the terminals of thisinductance is inversed, unblocking diode D, which supplies power to filteringcondenser C and to the standard converter.
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Condenser CP711 (pin 12) determines the soft start criteria for the stage so asto limit peak current in the chopping transistor when establishing the voltageRaw_B+. The TP321 command appears when there is a voltage of 1.5V or moreon pin 12. This condenser is discharged each time the overvoltage (pin 3) orundervoltage (pin 19) safety system is activated.
As far as protection goes, three parameters are controlled in this stage:
- the minimum supply voltage on pin 19 of circuit L4981B. This voltage'sthreshold value of 10.1V is set by resistances RP844 and RP844 (pin 15). Whenthe threshold is reached, the circuit switches to standby mode, blocking thechopping transistor and discharging the soft start condenser
- the maximum output voltage via pin 3. This is set to 426 Volts by dividerbridge RP826/827/828, RP831 and the internal 5.1V reference. In the event ofovershooting, there are the same consequences as with the previous protection
- the peak current in inductance PFC200 measured by resistance RP723is applied to pin 2 via divider bridge RP814/RP847. In the event of an currentoverload, the voltage on pin 2, normally negative, reaches 0V and the choppingtransistor is immediately blocked.
NOTES :
POWER FACTOR CORRECTION CIRCUIT.
As previously explained, the power factor correction circuit reduces the level ofharmonics reinjected into the mains circuit by the power supply. It alsocontributes to regulating the voltage generated at the terminals of the filteringcondenser (370 Volts), thereby facilitating the work of the downstream powersupplies.
Control of this stage is provided by an L4981B circuit from ST. Its power supplyis obtained from the switched 4 Volts of the Frosin power supply. Opto-couplerIP302 transmits commands to the IP751/ TP751 primary regulation circuit viatransistor TP752. The resulting voltage (approx. 12V) supplies the input Vcc topin 19 of the circuit and activates a second regulation circuit, IP303/TP302, usedfor starting up the resonant power supply.Divider bridge RP844/RP843 uses the voltage applied to pin 15 to set hysteresisthresholds on the internal power supply of 12V for Vcc on and 10.1V for Vcc off.A reference voltage is available on pin 11 (5.1 Volts).The 45kHz frequency of the internal oscillator is set by resistance RP812 (pin17) and condenser CP812 (pin 18).
The cyclic ratio of the chopping transistor control signal must be inverselyproportional to the rectified input voltage, i.e., must vary sinusoidally. The currentpicked up at the output of the rectifier bridge by resistances RP807/808/809 andapplied to the input on pin 4 supplies the required reference. ResistancesRP801/802/803 form a filter in conjunction with components CP803/CP804 andRP804/806, supplying data that is proportional to the RMS mains voltage in orderto take account of any variations in the latter (pin 7). Lastly, the output voltage ispicked up by divider bridge RP832/833/834/837/839 and applied to the erroramplifier located between pins 13 and 14.These 3 pieces of data are then associated through a multiplier. The resultingcurrent (pin 8) is added to the image of the inductance current (RP723) viaresistance RP813 then applied to the non-inverting input of the error amplifier.The circuit located between pins 5 and 9 sets the gain for this stage.The CA-OUT signal available on pin 5 is then compared with the sawtoothoscillator wave in the PWM stage to supply a variable cyclic ratio that controlschopping transistor TP321 via the logic and driver stages and via pin 20.
CENTRE DEFORMATION THOMSON
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CENTRE DEFORMATION THOMSON
18
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19
19
CONTROLS
CONTENTS
POWER SUPPLY / CLOCK / RESETTING / HALTING . .Page 21
KEYBOARD / REMOTE CONTROL / LED . . . . . . . . . . .Page 23
COMPUTER ARCHITECTURE . . . . . . . . . . . . . . . . . . .Page 25
O.S.D. / TELETEXT . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 27
FAULT CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 29
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POWER SUPPLIES TO IR001
These come from the voltages 5V_STBY and 3V3_STBY generated by the Frosinpower supply. A voltage of 1V8_UP, obtained from 3V3_STBY and regulator IP005,supplies the CPU of IR001.
IR001 CLOCK
A VCO/PLL assembly internal to IR001 clocks the microcontroller. The QR0018MHz quartz timer acts as the reference for this loop. The VCO working frequencyis 72MHz when running.
IR001 RESET
Integrated circuit IR004 coupled with condenser CR043 generates the reset signal.Pin 108 receives the RESET information.
IR001 HALT
A mains cut-off detection stage enables the TV set configuration to be saved if everthe mains voltage drops. Rectification and filtering of the voltage that is induced inpins 13/14 of LP253 by DP247 and CP247 gives a voltage in the region of –40V.Next, transistors TR061 and TR062 are blocked and pin 74 of IR001 goes to 0. Ifthe mains voltage drops below 140VAC, transistors TR061 and TR062 saturate.Pin 74 on IR001 changes to the high state (> 4V) and a back-up routine is triggered.Furthermore, because transistor TR060 is saturated, audio muting is effected.Once powered up, if pin 74 on IR001 is at 5V, the appliance remains on standbyand fault code 63 is stored in the EPROM.
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AUDIOPROCESSING
CONTENTS
AUDIO PROCESSING . . . . . . . . . . . . . . . . . . . . . . . . . .Page 53
G/D POWER AMPLIFICATION . . . . . . . . . . . . . . . . . . .Page 55
BASS POWER AMPLIFICATION . . . . . . . . . . . . . . . . . .Page 57
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AUDIO PROCESSING
Circuit IA001, MSP3411G lies at the core of this processing. It is driven by a18.432MHz clock and is controlled via bus I2C2 by control circuit IR001. The latteris also responsible for reset pin 21 on IA001.
This circuit- demodulates the FM audio intercarriers- demodulates NICAM audio- switches the various analogue audio sources for the peritel outputs- performs ADC on the various audio sources- corrects these digital audio signals (tone, pseudo-stereo, spatial stereo,
volume, Dolby virtual, etc.)- performs DACE
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CENTRE DEFORMATION THOMSON
54
54
55
55
L/R POWER AMPLIFICATION
Power amplification takes place in circuit IS200 (TDA 7490). This is a D-classstereo amplifier that enables some 2 x 15 Watts of power (THD=1%) to be achievedwith the minimum dissipation commensurate with the narrowness of the listeningspace.The +/_ 14Volt power supply obtained from the resonant power supply is applied topins 2 and 4 on IS200.
The left and right signals generated by the Main Board are applied to the pin 10 and16 inputs. In the event of a mains power cut, the Power Good (PG) signal saturatestransistors TS207/208 and TS203/204, thereby short-circuiting the inputs to groundto avoid rattling the loudspeaker cones.
Because of its threshold, the voltage on pin 6 provides control over the circuit'sstandby, mute, and ON modes- through TS202, the audio_stby command sets the voltage to less than 0.7V for
standby mode- through TS201 and diodes DS203/DS205, the L/R_MUTE and MASTER_MUTE
lines generate a voltage of between 1.7V and 2.5V for mute mode- by blocking transistors TS201 and TS202, the 5V_V line brings this pin to a
potential of between 4V and 5V for ON mode.
For each channel, a 2.5 gain preamplifier precedes an integrator stage whoseexternal circuit is connected across pins 9/7 and 19/17. The signal obtained is thenapplied to the pulse width modulator (PMW) stage, synchronised to the masteroscillator. The frequency of the latter is linked to components CS232 and RS209(pin 8) for a typical value of 200kHz. We can observe the triangular signals on pins11 and 15.Items CS213 and CS218 are bootstrap condensers for the final stages, whereasthe counter-reaction circuit is comprised of resistances RS226/RS204 andRS227/RS213.Condensers CS001 and CS006 integrate the signals for application to theloudspeakers.
Switch SS001 enables changeover between built-in and external loudspeakers andhas a contact that informs the microcontroller via expander IR006, allowing this tolimit power to 2 x 5W for the internal left and right channels and to 10W for theinternal bass channel.
An IS100 (MC33079) amplifier delivers variable levels to two RCA (BS003) socketsfor external amplification that remains under the control of the TV set.
NOTES
CENTRE DEFORMATION THOMSON
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56
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57
57
BASS POWER AMPLIFICATION
A second TDA7490 (IS500) is used for reproducing bass sounds. Its two channelsare used in a bridge configuration (the loudspeaker is connected across the twooutputs), thereby doubling the power of this monophonic channel. To do so theinverting input (pin 19) of the second integrator is linked through resistance RS510to that of the first integrator (pin 7), whereas the input of the second preamplifier isgrounded through condenser CS581 (pin 18).
The subwoofer signal generated by the Main Board is applied to input pin 10 onIS500. In the event of a mains power cut, the Power Good (PG) signal saturatestransistors TS207/208 and TS501, thereby short-circuiting the input to ground so asto avoid rattling the loudspeaker cones.
Because of its threshold, the voltage on pin 6 provides control over the circuit'sstandby, mute, and ON modes- through TS504, the audio_stby command sets the voltage to less than 0.7V for
standby mode- through TS502 and diodes DS204/DS201, the SUBMUTE and MASTER_MUTE
lines generate a voltage of between 1.7V and 2.5V for mute mode- by blocking transistors TS502 and TS504, the 5V_V line brings this pin to a
potential of between 4V and 5V for ON mode.
The oscillator in IS500 is synchronised to that of IS200 via transistor TS503 to avoidany beat phenomena.
A third amplifier built into IS100 (MC33079), along with the variable level subwoofersignal, completes the left and right outputs described on the previous page.
NOTES
CENTRE DEFORMATION THOMSON
CENTRE DEFORMATION THOMSON
58
58
59
59
TROUBLESHOOTING
CONTENTS
LOW VOLTAGE TROUBLESHOOTING METHODS . . . .Page 60
CENTRE DEFORMATION THOMSON
PERMANENT VOLTAGES:
DP225 cathode: 15.4V (ground of the primary)DP203 cathode (radiator) (6.5V): 6.38VDP204 cathode (10.5V): 11.5VDP205 cathode (20.5V): 21.7VDP206 cathode (45V): 48V
5VSTBY: 5.3V3.3VSTBY: 3.5V
SWITCHED VOLTAGES
- Put the gate on TP302 to the ground of the primary- Link the source on TP201 to point PO (RP207, BP220A connector side)
TP205 collector (20V): 19.1VTP204 source (10V): 11.5VTP203 source (6V): 6.38VDP218 cathode (4V): 6V
LOW VOLTAGE TROUBLESHOOTING METHODS FOR THEFROSIN AND RESONANT POWER SUPPLIES
FROSIN POWER SUPPLY
- Discharge both condensers CP258 and CP259- Wire a 10k resistance between the cathode of DP255 and the cathode of DP225- Wire a 10k resistance between the cathode of DP206 and the ground of the secondary- Disconnect connectors BP001 and BP002 on the main board- Disconnect connector BX007 on the scaler board- Apply 12 volts DC between the cathode of DP255 (+12V) and the ground of the primary- Set the on/off switch to ON.
SIGNALS:
CENTRE DEFORMATION THOMSON
60
60
260V
225V
0
0
15V
-4V
-2V
0,4V
0,8V0,7V
8µs
T = 95µs
TP220 Drain
TP220 Gate
TP222 Base
61
61
RESONANT POWER SUPPLY
- Remove the strap from the gate on TP302
SIGNALS:
VOLTAGES:
12 on IP300: 11.6V (ground of the primary)VSSIN: 1.7V+UA: 0.8V-UA: -0.8V
CENTRE DEFORMATION THOMSON
24V
13V
13V
-2V
-4V
-1V
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1V
4.4V
9.5µs9µs
3 on IP300
11 on IP300
15 on IP300
Drain on TP321
CENTRE DEFORMATION THOMSON
62
62
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APPLIED STUDYOF
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TELEVISION
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This technical docum
entation is for use by maintenance technicians only
Docum
entation technique exclusivement destinée aux professionnels de la m
aintenanceD
iese Angaben und H
inweise sind ausschließ
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mt
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PR
INT
ING
TH
E S
ER
VIC
E M
AN
UA
L
The PD
F of this service manual is not designed to be printed from
cover to cover. The pages vary in size, and must therefore be printed in sections
based on page dimensions.
NO
N-S
CH
EM
AT
IC P
AG
ES
Data that does N
OT IN
CLU
DE
schematic diagram
s are formatted to 8.5 x 11 inches and can be printed on standard letter-size and/or A
4-sized paper.
SC
HE
MA
TIC
DIA
GR
AM
S
The schematic diagram
pages are provided in two w
ays, full size and tiled. The full-sized schematic diagram
s are formatted on paper sizes betw
een 8.5” x 11” and 18” x 30” depending upon each individual diagram
size. Those diagrams that are LA
RG
ER
than 11” x 17” in full-size mode have been
tiled for your convience and can be printed on standard 11” x 17” (tabloid-size) paper, and reassembled.
TO P
RIN
T FULL S
IZE S
CH
EM
ATIC
DIA
GR
AM
S
If you have access to a large paper plotter or printer capable of outputting the full-sized diagrams, output as follow
s:
1) Note the page size(s) of the schem
atics you want to output as indicated in the m
iddle window
at the bottom of the view
ing screen.
2) Go to the File m
enu and select Print S
et-up. Choose the printer nam
e and driver for your large format printer. C
on � rm that the printer settings
are set to output the indicated page size or larger.
3) Close the P
rint Set U
p screen and return to the File menu. S
elect “Print...” Input the page num
ber of the schematic(s) you w
ant to print in the print range w
indow. C
hoose OK
.
TO P
RIN
T TILED
VE
RS
ION
OF S
CH
EM
ATIC
S
Schem
atic pages that are larger than 11” x 17” full-size are provided in a 11” x 17” printable tiled format near the end of the docum
ent. These can be printed to tabloid-sized paper and assem
bled to full-size for easy viewing.
If you have access to a printer capable of outputting the tabloid size (11” x 17”) paper, then output the tiled version of the diagram as follow
s:
1) Note the page num
ber(s) of the schematics you w
ant to output as indicated in the middle w
indow at the bottom
of the viewing screen.
2) Go to the File m
enu and select Print S
et-up. Choose the printer nam
e and driver for your printer. Con � rm
that the plotter settings are set to output 11” x 17”, or tabloid size paper in landscape (
) mode.
3) Close the P
rint Set U
p screen and return to the File menu. S
elect “Print...” Input the page num
ber of the schematic(s) you w
ant to print in the print range w
indow. C
hoose OK
.
TO P
RIN
T SP
EC
IFIC S
EC
TION
S O
F A S
CH
EM
ATIC
To print just a particular section of a PD
F, rather than a full page, access the Graphics S
elect tool in the Acrobat R
eader tool bar.
1) To view the G
raphics Select Tool, press and H
OLD
the mouse button over the Text S
elect Tool which looks like:
This tool will expand to reveal to additional tools.
Choose the G
raphics Select tool by placing the cursor over the button on of the far right that looks like:
2) After selecting the G
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and the cursor will change to a plus (+) sym
bol. Click and
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hen you release the mouse button, a m
arquee (or dotted lined box) will be displayed outlining
the area you selected.
3) With the m
arquee in place, go to the � le menu and select the “P
rint...” option. When the print w
indow appears, choose the option under the section
called “Print R
ange” which says “S
elected Graphic”.
Select O
K and the output w
ill print only the area that you outlined with the m
arquee.
(continued >)
T