1
37GQ-20H
SERVICE MANUAL
SHARP CORPORATION
CONTENTS
PAL SYSTEM COLOUR TELEVISION
SEJB37GQ20H02
SQUAD CHASSIS
In the interests of user safety (required by safetyregulations in some countries) the set should restoredto its original condition and only parts identical tothose specified should be used.
MODEL 37GQ-20H
Issued: 9th June ‘00
This document has been published to be used for after sales service only.
ELECTRICAL SPECIFICATION.......................2IMPORTANT SERVICE NOTES.......................3SERVICE ADJUSTEMENTS.............................4PRINTED WIRING BOARDS...........................11
SCHEMATIC DIAGRAM, WAVE FORMS..... .13PART LIST.......................................................18TROUBLESHOOTING TABLES......................22
2
37GQ-20H
ELECTRICAL SPECIFICATIONS
•Power Input .......................220V-240 Volts AC 50Hz
•Power Consumption
•Audio Power Output Rating .....................2W (MPO)
Speaker............................32Ω 2W, 8cm Round, 1pc
Normal Operating...................................30W
Stand-by Operating................................7.5W(Method IEC60107)
•White LevelSet brightness control to get total picture tube cathode current of 600 milliamperes under no signal condition.Maximum necessary correction of each picture tube cathode current to get 8950 degree K-20 MPCD screentemperature should not exceed 15% of its original value.
X=0.290 Y=0.284
WARNINGThe chassis in this receiver is partially live, always use an isolation transformer whenservicing this chassis.To prevent electric shock, do not remove cover. No user-serviceable parts inside. Referservicing to qualified service personnel.
Convergence.........................Self Converging System
Focus....................................Bi-Potencial Electrostatic
Sweep Deflection...........................................Magnetic
Specifictions are subject to change without prior notice.
•Aerial Input ImpedanceVHF/UHF...........................75 ohm Unbalanced
•Tuning Ranges ............471.25MHz thru 855.25 MHz (CH21-CH69)•Picture Intermediate Frecuencie..............38.9MHz
• Sound Carrier Trap.............................32.9MHz
•Adjacent Sound Carrier Trap................40.9MHz
•Adjacent Picture Carrier Trap...............30.9MHz
3
37GQ-20H
IMPORTANT SERVICE NOTES
SERVICING OF HIGH VOLTAGE SYSTEM AND PICTURE TUBE
Maintenance and repair of this receiver should be done by qualified service personnel only.
When servicing the high voltage system, remove static charge from it by connecting a 10K ohmresistor in series with an insulated wire (such as test probe) between picture tube ground tag andhigh voltage lead. (AC line cord should be disconnected from AC outlet).
1. The Picture tube in this receiver employs Integral Implosion protection.2. Replace with tube of the same type number for continued safety.3. Do not lift picture tube by the neck.4. Handle the picture tube only when wearing shatterproof goggles and after discharging the high voltage completely.
X-RAYThis receiver is designed so that any X-Ray radiation is kept to an absolute minimum. Since certainmalfunctions and servicing may produce potentially hazardous radiation with prolonged exposure atclose range, the following precautions should be observed:
1. When repairing the circuit, be sure not to increase the high voltage to more than 25.5 KV, (at beam 1000µΑ) for the set.2. To keep the set in a normal operation, be sure to make it function on 22.4KV±1.5KV (at beam 800µΑ) in the case of the set. The set has been factory - adjusted to the above mentioned high voltage. Always check the high voltage if there is any possibility that it might have changed as a result of the repair.3. Do not substitute a picture tube with unauthorized types and/or brands which may cause excess X-Ray radiation.
BEFORE RETURNING THE RECEIVERIn addition to the above checks, the following safety checks should also be carried out before returningthe unit to the user.
1. Inspect all leads and dress to make certain that the leads are not pinched or that hardware is not lodged between the chassis and other metal parts.2. Inspect all protective devices such as non-metallic control knobs, insulating fish papers, cabinet backs, adjustment and compartment covers or shields, insolation resistor-capacity networks, mechanical insulators etc.
4
37GQ-20H
SERVICE ADJUSTMENT•SERVICE MODE FUNCTION
This mode funtion is provided to assist with the settings of those adjustments that may vary from onePicture Tube to another, or between models.
In order to use the Service Mode1. Press main switch to OFF.2. Connect Test Pattern signal to antenna terminal.
3. Press ∨ , CH ∨ and main switch to ON simultaneosly or
press ∧ , CH ∧ and main switch to ON simultaneosly.4. -SERVICE- will appear on screen. Service mode is now entered.
5. Select adjustment using buttons ∧ CH ∧ .
To exit Service Mode, press main switch to OFF or press MENU button on R/C.
a.b.c.d.e.
f.
g.h.i.j.k.l.m.n.
SERVICENVMAGC GAINAGC STRPLLPAL
AUTO
B-GAING-GAING-DCR-GAINR-DCHOR POSVERT POSVERT AM
Displayedon screen
Hexadecimal /Decim. Range Function
00 ∼ 03H00 ∼ 63H
S, L, VL, N4-43, 3-58,
SECAM, NTSC4-43,NTSC 3-58,
AUTO PNS,AUTO PN
AUTO, 50HZ,60HZ
0 ∼ 63d0 ∼ 63d0 ∼ 63d0 ∼ 63d0 ∼ 63d0 ∼ 63d0 ∼ 63d0 ∼ 15d
Indicates operative Service Mode.Access to NVM memoryAuto Gain ControlAuto Gain Starting PointLine PLL time constantColour system.
Field Frequency
Blue GainGreen GainGreen CutRed GainRed CutHorizontal Position shiftVertical Position shiftVertical Amplitude shift
6. For « a » Selection:NVM storage location settings variants.
BANK POS VALUE X XXH XXH Assigned value
Storage location
Memory Bank
In order to have access to NVM «MENU» button should be pressed. To obtain a higher or lower Memory
Bank, buttons ∨ ∧ should be pressed respectively. To have access to the desired Storage Location,
buttons ∨ CH ∧ should be pressed, as required to obtain a higher or lower location, respectively.
5
37GQ-20H
Bear in mind that, for storage location indication a hexadecimal numerical system is used, instead of adecimal system.0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, 10, 11, ......19, 1A, 1B, 1C, 1D, 1E, 1F, 20, 21, ....., 99, 9A, 9B,9C, 9D, 9E, 9F, A0, A1, ....., B0, ....., C0, ....., D0, .....E0, ....., F0, F1, F2, F3, F4, F5, F6, F7, F8, F9, FA,FB, FC, FD, FE, FF.From the last location FF to the first 00 can be reached by increasing and from first to last by decreasing.Once the storage location to be varied has been selected, its value can be modified by the bits that formpart of the storage location numerical buttons, numbers «0» to «7», respectively. This swithches the binarynumber from and between 0 and 1 each time one of the buttons is pressed.
«0»:20=1, «1»: 21=2, «2»: 22=4, ...
7. For «b,c» and «g» thru «n» selections:
Adjustment to a selection can be made by pressing buttons ∨ ∧.
8. For «d» thru «f» selections:
Adjustment to a selection can be made by pressing button ∧.
NVM LIST DESCRIPTION
BANK ADDRESS DESCRIPTION VALUE00H 00H ZONE FOR TUNNING INFORMATION (BEGIN) CAH
3BH ZONE FOR TUNNING INFORMATION (END) 10H3CH STAND BY: 44H -> ON
40H -> OFF44H
3DH OPTION BYTE: 10XXXXXX -> HOTEL MODE 1 (START IN PRG1. NO TUNNING OPTION. VOLUME LIMITATION). 11XXXXXX -> HOTEL MODE 2 (START IN PRG 1. NO TUNING OPTION. VOLUME LIMITATION. START IN SCART MODE. OUT FROM STDBY WITH SSW. XXDDDDDD -> VOLUME ATTENUATION: 0AH -> 100%, 00H -> 0%
0AH
3EH DIODE_NVM: XXXXXXX0 -> SYMBOLIC OSD. XXXXXXX1 -> CHARACTER OSD XXXXX1XX -> ENGLISH LANGUAGE.
05H
3FH DIODE2_NVM: XXXXXXX1 -> FRENCH STANDARD XXXXX01X -> BG STANDARD XXXXX10X -> L/L’ STANDARD XX1XXXXX -> AUDIO FOR UK X1XXXXXX -> AUTOINSTALLATION ON 1XXXXXXX -> ONLY UHF BAND.
A0H
01H 00H ZONE FOR TUNNING INFORMATION (BEGIN) 10H3BH ZONE FOR TUNNING INFORMATION (END) 10H3DH UHFLOW: LOW WINDOW LIMIT FOR UHF BAND 80H3EH VHF3LOW: LOW WINDOW LIMIT FOR VHF3 BAND 80H3FH VHF1LOW: LOW WINDOW LIMIT FOR VHF1 BAND 80H
02H 00H RESERVED ZONE FOR PROGRAMME NAMES (BEGIN) 24H3FH RESERVED ZONE FOR PROGRAMME NAMES (END) 24H
6
37GQ-20H
03H 00H ONE CHIP REGISTER 00: 80H01H ONE CHIP REGISTER 01: 05H02H ONE CHIP REGISTER 02: 9FH03H ONE CHIP REGISTER 03: 20H04H ONE CHIP REGISTER 04: 00H05H ONE CHIP REGISTER 05: BAH06H ONE CHIP REGISTER 06: 42H07H ONE CHIP REGISTER 07: 32H08H ONE CHIP REGISTER 08: 19H09H ONE CHIP REGISTER 09: 99H0AH ONE CHIP REGISTER 0A: 32H0BH ONE CHIP REGISTER 0B: B2H0CH ONE CHIP REGISTER 0C: 32H0DH ONE CHIP REGISTER 0D: 20H0EH ONE CHIP REGISTER 0E: 20H0FH ONE CHIP REGISTER 0F: 18H10H ONE CHIP REGISTER 10: 1FH11H ONE CHIP REGISTER 11: 00H12H ONE CHIP REGISTER 12: 00H13H ONE CHIP REGISTER 13: 20H14H ONE CHIP REGISTER 14: 20H15H ONE CHIP REGISTER 15: 00H16H ONE CHIP REGISTER 16: 1FH17H ONE CHIP REGISTER 17: 20H18H ONE CHIP REGISTER 18: 2BH19H ONE CHIP REGISTER 19: 00H1AH ONE CHIP REGISTER 1A: 90H1BH ONE CHIP REGISTER 1B: 90H1CH ONE CHIP REGISTER 1C: 90H1DH ONE CHIP REGISTER 1D: 00H1EH ONE CHIP REGISTER 1E: 00H1FH ONE CHIP REGISTER 1F: 00H20H VPOS_50 (VERTICAL POSITION) 4/3 50 Hz. 12H21H VAMP_50 (VERTICAL AMPLITUDE) 4/3 50 Hz 0FH22H VPOS_60 (VERTICAL POSITION) 4/3 60 Hz 0FH23H VAMP_60 (VERTICAL AMPLITUDE) 4/3 60 Hz 0FH24H HSHIFT_60 (HORIZONTAL SHIFT) 60Hz 1DH25H HSHIFT_50 (HORIZONTAL SHIFT) 50Hz 22H26H FINVFH: STEP FOR FINE TUNING IN VHF BAND 00H27H VHF1_STEP: THICK TUNING STEP FOR VHF1 BAND A4H28H VHF3_STEP: THICK TUNING STEP FOR VHF3 BAND 85H29H UHF_STEP: THICK TUNING STEP FOR UHF BAND 64H2AH LP_COARSE: THICK TUNING ADJUSTMENT FOR L’ 02H2BH BG_COARSE: THICK TUNING ADJUSTMENT FOR L AND BG 0AH2CH BG_FINE: FINE TUNING ADJUSTMENT FOR L AND BG 00H2DH LP_FINE: FINE TUNING ADJUSTMENT FOR L’ 00H2EH DELAY SEARCH:
XXXXXXX0 -> SHOWS ‘PROGRAMME –‘ DURING AUTOSEARCH. XXXXXXX1 -> DHOWS ‘AUTO SEARCH’ DURING AUTOSEARCH
00H
2FH VHF1_SP: STEP FOR AUTO SEARCH IN VHF1 BAND 0AH30H VHF3_SP: STEP FOR AUTO SEARCH IN VHF3 BAND 05H31H UHF_SP: STEP FOR AUTO SEARCH IN UHF BAND 03H32H OLD_PROGRAM: FOR FLASHBACK RETURN 00H33H UHFHIGH: UPPER WINDOW LIMIT FOR UHF 00H34H VHF3HIGH: UPPER WINDOW LIMIT FOR VHF3 00H
7
37GQ-20H
35H VHF1HIGH: UPPER WINDOW LIMIT FOR VHF1 00H36H PRG_NUMBER: CURRENT PROGRAMME NUMBER 01H37H WAITSUP: UPPER LIMIT DELAY TIME FOR AUTOSEARCH. 0FH38H WAITINF: LOWER LIMIT DELAY TIME FOR AUTOSEARCH 03H3Bh SCART BLOKING:
- 00H = NO SCARTBLOCKING- 01H = SCART BLOCKING WHEN ANY PR. IS IN CHILD
LOCK MODE.
00HV2 µProc.Version orupper.
3CH RET_COL: DELAY IN COLOUR IDENTIFICATION IN AUTO MODE.
40H
3FH CHECKSUM 7EH
04H 00H ONE CHIP REGISTER 00: 80H01H ONE CHIP REGISTER 01: 05H02H ONE CHIP REGISTER 02: 9FH03H ONE CHIP REGISTER 03: 20H04H ONE CHIP REGISTER 04: 00H05H ONE CHIP REGISTER 05: BAH06H ONE CHIP REGISTER 06: 42H07H ONE CHIP REGISTER 07: 32H08H ONE CHIP REGISTER 08: 19H09H ONE CHIP REGISTER 09: 99H0AH ONE CHIP REGISTER 0A: 32H0BH ONE CHIP REGISTER 0B: B2H0CH ONE CHIP REGISTER 0C: 32H0DH ONE CHIP REGISTER 0D: 20H0EH ONE CHIP REGISTER 0E: 20H0FH ONE CHIP REGISTER 0F: 18H10H ONE CHIP REGISTER 10: 1FH11H ONE CHIP REGISTER 11: 00H12H ONE CHIP REGISTER 12: 00H13H ONE CHIP REGISTER 13: 20H14H ONE CHIP REGISTER 14: 20H15H ONE CHIP REGISTER 15: 00H16H ONE CHIP REGISTER 16: 1FH17H ONE CHIP REGISTER 17: 20H18H ONE CHIP REGISTER 18: 2BH19H ONE CHIP REGISTER 19: 00H1AH ONE CHIP REGISTER 1A: 90H1BH ONE CHIP REGISTER 1B: 90H1CH ONE CHIP REGISTER 1C: 90H1DH ONE CHIP REGISTER 1D: 00H1EH ONE CHIP REGISTER 1E: 00H1FH ONE CHIP REGISTER 1F: 00H20H VPOS_50 (VERTICAL POSITION) 4/3 50 Hz. 12H21H VAMP_50 (VERTICAL AMPLITUDE) 4/3 50 Hz 0FH22H VPOS_60 (VERTICAL POSITION) 4/3 60 Hz 0FH23H VAMP_60 (VERTICAL AMPLITUDE) 4/3 60 Hz 0FH24H HSHIFT_60 (HORIZONTAL SHIFT) 60Hz 1DH25H HSHIFT_50 (HORIZONTAL SHIFT) 50Hz 22H26H FINVFH: STEP FOR FINE TUNING IN VHF BAND 00H27H VHF1_STEP: THICK TUNING STEP FOR VHF1 BAND A4H28H VHF3_STEP: THICK TUNING STEP FOR VHF3 BAND 85H29H UHF_STEP: THICK TUNING STEP FOR UHF BAND 64H2AH LP_COARSE: THICK TUNING ADJUSTMENT FOR L’ 02H2BH BG_COARSE: THICK TUNING ADJUSTMENT FOR L AND BG 0AH2CH BG_FINE: FINE TUNING ADJUSTMENT FOR L AND BG 00H2DH LP_FINE: FINE TUNING ADJUSTMENT FOR L’ 00H2EH DELAY SEARCH:
XXXXXXX0 -> SHOWS ‘PROGRAMME –‘ DURING AUTOSEARCH. XXXXXXX1 -> DHOWS ‘AUTO SEARCH’ DURING AUTOSEARCH
00H
8
37GQ-20H
2FH VHF1_SP: STEP FOR AUTO SEARCH IN VHF1 BAND 0AH30H VHF3_SP: STEP FOR AUTO SEARCH IN VHF3 BAND 05H31H UHF_SP: STEP FOR AUTO SEARCH IN VHF BAND 03H32H OLD_PROGRAM: FOR FLASHBACK RETURN 00H33H UHFHIGH: UPPER WINDOW LIMIT FOR UHF 00H34H VHF3HIGH: UPPER WINDOW LIMIT FOR VHF3 00H35H VHF1HIGH: UPPER WINDOW LIMIT FOR VHF1 00H36H PRG_NUMBER: CURRENT PROGRAMME NUMBER 01H37H WAITSUP: UPPER LIMIT DELAY TIME FOR AUTOSEARCH. 0FH38H WAITINF: LOWER LIMIT DELAY TIME FOR AUTOSEARCH 03H3Bh SCART BLOKING:
- 00H = NO SCARTBLOCKING- 01H = SCART BLOCKING WHEN ANY PR. IS IN CHILD
LOCK MODE.
00HV2 µProc.Version orupper.
3CH RET_COL: DELAY IN COLOUR IDENTIFICATION IN AUTO MODE.
40H
3FH CHECKSUM 7EH
05H 00H ONE CHIP REGISTER 00: 80H01H ONE CHIP REGISTER 01: 05H02H ONE CHIP REGISTER 02: 9FH03H ONE CHIP REGISTER 03: 20H04H ONE CHIP REGISTER 04: 00H05H ONE CHIP REGISTER 05: BAH06H ONE CHIP REGISTER 06: 42H07H ONE CHIP REGISTER 07: 32H08H ONE CHIP REGISTER 08: 19H09H ONE CHIP REGISTER 09: 99H0AH ONE CHIP REGISTER 0A: 32H0BH ONE CHIP REGISTER 0B: B2H0CH ONE CHIP REGISTER 0C: 32H0DH ONE CHIP REGISTER 0D: 20H0EH ONE CHIP REGISTER 0E: 20H0FH ONE CHIP REGISTER 0F: 18H10H ONE CHIP REGISTER 10: 1FH11H ONE CHIP REGISTER 11: 00H12H ONE CHIP REGISTER 12: 00H13H ONE CHIP REGISTER 13: 20H14H ONE CHIP REGISTER 14: 20H15H ONE CHIP REGISTER 15: 00H16H ONE CHIP REGISTER 16: 1FH17H ONE CHIP REGISTER 17: 20H18H ONE CHIP REGISTER 18: 2BH19H ONE CHIP REGISTER 19: 00H1AH ONE CHIP REGISTER 1A: 90H1BH ONE CHIP REGISTER 1B: 90H1CH ONE CHIP REGISTER 1C: 90H1DH ONE CHIP REGISTER 1D: 00H1EH ONE CHIP REGISTER 1E: 00H1FH ONE CHIP REGISTER 1F: 00H20H VPOS_50 (VERTICAL POSITION) 4/3 50 Hz. 12H21H VAMP_50 (VERTICAL AMPLITUDE) 4/3 50 Hz 0FH22H VPOS_60 (VERTICAL POSITION) 4/3 60 Hz 0FH23H VAMP_60 (VERTICAL AMPLITUDE) 4/3 60 Hz 0FH24H HSHIFT_60 (HORIZONTAL SHIFT) 60Hz 1DH25H HSHIFT_50 (HORIZONTAL SHIFT) 50Hz 22H26H FINVFH: STEP FOR FINE TUNING IN VHF BAND 00H27H VHF1_STEP: THICK TUNING STEP FOR VHF1 BAND A4H28H VHF3_STEP: THICK TUNING STEP FOR VHF3 BAND 85H29H UHF_STEP: THICK TUNING STEP FOR UHF BAND 64H2AH LP_COARSE: THICK TUNING ADJUSTMENT FOR L’ 02H
9
37GQ-20H
•••••PIF/AGC Adjustement •••••Screen Adjustement
Apply mains voltage of 220V AC/50HZ to TV.1. Receive Philips pattern signal to a levelbetween 60 and 80 dBµV.
2.
Set contrast to 10/10, brightness to 5/10and colour 0/10.
3.
Adjust focus potentiometer to obtainmaximum definition.
4.
3. Focus Adjustment1. B/G AFT Adjustment
Connect the output of SSG (Standard SignalGenerator) to the tuner IF output terminal.•SSG output 38.9 MHz (CW) ± 5 KHz.•SSG output level: approx. 90 dBµV.
1.
Enter into Service Mode.2. Push «2» key on R/C. «FI OK» will appear.3. Switch set OFF and ON again, setting is nowmemorized.
4.
Receive the «CROSS HATCH» signal (Channel I-42). Signal strength: 57 dBµV.
1.
Enter into Service Mode.2.
2. RF-AGC STR Adjustment
Push CH until AGC STR appears on screen.3.4. Push «7» key of R/C.«AGC OK» will appear.
Switch set OFF and ON again, setting is nowmemorized.
5.
4. G2 AdjustmentApply mains voltage of 220V AC/50HZ to TV.1.
Receive the «CROSS HATCH» pattern signal to alevel between 60 and 80 dBµV.
2.
Apply High Voltage Probe to Pin 8 of CRT socket3.4. Adjust G2 potentiometer until obtaining 525V
±10%.
5. Check BKGD. If it is necessary adjust BKGDaccording to instructions detailed in the nextpage.
2BH BG_COARSE: THICK TUNING ADJUSTMENT FOR L AND BG 0AH2CH BG_FINE: FINE TUNING ADJUSTMENT FOR L AND BG 00H2DH LP_FINE: FINE TUNING ADJUSTMENT FOR L’ 00H2EH DELAY SEARCH:
XXXXXXX0 -> SHOWS ‘PROGRAMME –‘ DURING AUTOSEARCH. XXXXXXX1 -> DHOWS ‘AUTO SEARCH’ DURING AUTOSEARCH
00H
2FH VHF1_SP: STEP FOR AUTO SEARCH IN VHF1 BAND 0AH30H VHF3_SP: STEP FOR AUTO SEARCH IN VHF3 BAND 05H31H UHF_SP: STEP FOR AUTO SEARCH IN VHF BAND 03H32H OLD_PROGRAM: FOR FLASHBACK RETURN 00H33H UHFHIGH: UPPER WINDOW LIMIT FOR UHF 00H34H VHF3HIGH: UPPER WINDOW 00H35H VHF1HIGH: UPPER WINDOW LIMIT FOR VHF1 00H36H PRG_NUMBER: CURRENT PROGRAMME NUMBER 01H37H WAITSUP: UPPER LIMIT DELAY TIME FOR AUTOSEARCH. 0FH38H WAITINF: LOWER LIMIT DELAY TIME FOR AUTOSEARCH 03H3Bh SCART BLOKING:
- 00H = NO SCARTBLOCKING- 01H = SCART BLOCKING WHEN ANY PR. IS IN CHILD
LOCK MODE.
00HV2 µProc.Version orupper.
3CH RET_COL: DELAY IN COLOUR IDENTIFICATION IN AUTO MODE.
40H
3FH CHECKSUM 7EH
10
37GQ-20H
1. HOR POSa) Receive Philips pattern signal.
b) When ∧ button is pressed, picture moves to the left.
c) When ∨ button is pressed, picture moves to the right.d) Adjust the horizontal location to obtain picture centering (Fig.1).
•GEOMETRY ADJUSTMENT PROCEDURE
2. VERT POSa) Receive Philips pattern signal.b) When ∧ button is pressed, picture moves up.
c) When ∨ button is pressed, picture moves down.d) Adjust the vertical location to obtain picture centering (Fig.2).
3. VERT AMa) Receive Philips pattern signal.b) When ∧ button is pressed, vertical size of picture increases.
c) When ∨ button is pressed, vertical size of picture decreases.d) Adjust the vertical size to obtain picture overscan (Fig.3).
The following adjustments are required when the Picture Tube or IC801 are replaced, ormay be necessary after adjustment of the G2 voltage.
1. «B-GAIN», «G-GAIN»a) Adjust G2.b) Tune a grey scale pattern.c) Adjust colour to minimum.d) Fix R-GAIN value to 50.e) Position colourmeter in the the left point of Fig.4.f) Using brightness and contrast buttons, select a luminance of ≈120 nits.g) Operate again in Service Mode and select location B-GAIN andG-GAIN to obtain colour coordinates:
X = 0.290 ± 0.015Y = 0.284 ± 0.015
h) Exit Service Mode and check colour coordinates «X» and «Y» at 20 and 120 nits. It may benecessary to repeat the same procedure or re-adjust the cuts as show the be below one.
2. «G-DC», «R-DC»a) Adjust G2, in the case that it has not been made previously.b) Tune a grey scale pattern.c) Adjust colour to minimum.e) Position colourmter in the the right point of Fig.4.f) Using brightness and contrast buttons, select a luminance of ≈20 nits.g) Operate again in Service Mode and select location G-DC and R-DC to obtain colourcoordinates:
X = 0.290 ± 0.015Y = 0.284 ± 0.015
h) Exit Service Mode and check colour coordinates «X» and «Y» at 20 and 120 nits. It may benecessary to repeat the same procedure or the previous one.
•COLOUR ADJUSTMENT (BKGD) PROCEDURES
NOTE: Locations «R» alter «X» coordinates; «G» alter «Y» coordinates; «B» alter «X» and «Y»coordinates.
Fig. 2
Fig. 1
Fig. 3
Fig. 4
3 7 4 0
6 5 4 3 2 1 0
(0: Black ... 7: White)
Gain point
DC point
11
37GQ-20H
J50
(K)
1
5
J94
C22
3
C726
C10
14
FB801
JL3.
JL3
L5 FB
403
FB402
F401
Q703
JF11
JF14
JF13
S1
J40
D801
D60
3
R816 JL2
JL2.
JL1.
J67
J82
R1013
R511
J39
J58
J57
J90
J35
J34
J21
J3
J89
+
C717C722
+
R71
6
D717
C878
+
C72
1
R70
1
C718
J88
B
Q502
E
+
C815
J48
+
C817J42
C814
+
+
C803
L801
J87
J63J60
+C819
R302J2
J1
J85
C E
R720EC
J5
R51
6
R53
0
J83
J71
C50
3
+
C312
+C303
R315
D301
5
1
(K).
(S)
1
+
C30
4
FB
301
J302
426
5317
K72
88B
M
L301
ECR862
E
Q885
B
J301
426
5317
D70
4
F701
(G)
21
S701
+
C711
C60
3
+
R710
J16
J52
C1001
+
J9J8J69
C508
J22
R52
9
J72
R604
A
E
C
B
Q601
C602
D606
(F)
1 2 3 4 5
1
X1001
T3.
15A
H
R708R707
T701
1
78
14
C709
C
Q702
E
J38
3
4 5
6
7
8
9
CRT
R866E
Q871
B
(L3)
CF201
1
+
C209
D201
C20
5
++
C208
SF
202
15
5 1
SF201
R61
0
R60
3
R607
T601
10
9
8
7
65
4
3
2
1
TU201
AGC
TU
AS
CL
DA
B+
33V
IF1
IF2
SC401
BQ602
E
R605
R609
E
Q603
B
L601
R606
R402
C21
5+
J68
J64
+
C801
J55
C805 + +
C82
0
C207
+
RMC001
S1004S1003S1002S1001K
D1001
C1009+
J6
J43
J44
K7287BM
F7287BMN1
F7288BMN1
ESPA¥A
R60
8
J32
C30
1
+
A
+
C406
X80
1
D202
D602
J45
J47
J53L602
C401
+1 (H).4
C604
+
C60
5
J73
R71
4
C70
2
D702
PR
701
C704
R406
J65
C70
3
D701D703
(A)
3
2
1
R61
2
R61
7
C601
C609
R616
+
C608
TP
601
TP
602
R611
C713
+
D710
EQ887
BE
Q87
2
B
R883
G2
C876
BQ883E
R885
1(H)4
(SH)(S).
B
Q87
0 E
R864
R30
5
C308 +
+C307
C302
+
R304
R303
EQ301
C
F7296BMN1
K72
96B
M
C874
Q302
D70
8
FB
601
L202
C408
+
R536
J17
J15
D60
5
C607 +
D503
R52
3
R510
R502
E
Q501
B
R1011R1012
R718R709R301
J12
D709
C712+
J7
+
C714
D711
J84
IC1003
C
Q10
01
E
R615
JF10
R61
8
L100
1
1 3
IC1004
+
C705
C701
(L2)
R88
7
C87
9L8
61
L4
+
C707
R70
2
R70
3
C725
J24J29
J28
J30
R81
9
R82
0
J86
R61
3
D60
4
JL1
J79
C509
Q707
J77
J78
J80
J91
J92
TP701
(SE
RV
ICE
)C
LK
SC
L
SD
A
SE
R
DA
T
GN
D
FB701
JF15
L701
JF12
R1027
R1028
R1029
JL1,
C710
+
FB702
D70
7
J81
R537
B
Q503
E
JL6
JL6.
C728
JL10
JL10
.
C82
2
PRINTED WIRING BOARD (01 A Version)Component side.
1
I
H
G
F
E
D
C
B
A
2 3 4 5 6 7
12
37GQ-20H
J51
J50C823 C825
C82
4
R815
J97R88
8
(K)
5
1
R405
R404
R82
3
R82
4
C80
8
J59
J94
R53
8
Q509 R51
9
R812
R811
R810
R809
R808
R1032
FB801
R53
4
C50
7
K
D71
8
R72
1
R10
20
C1011
R10
24
JF18
FB
404
C409
JF17
J61
R41
0R
412
R411
R40
9
D403K
K
D40
8
R40
8R
826
R310
C315
FB403
FB402F40
1
R41
7
R213 C1007
JF11
JF14
JF13
S1
R20
2
R41
5Q204
R20
3
C222
C22
1R
220
J62
R41
6
J40
D801
R61
4
D603
R816
J67
R723
R724
R72
5
J82
D712K
Q708Q705
R1013
R51
1
J39
J58
J57
R21
2J9
0
J35
J34
J21
C72
3
D706K
K D720
K D716
KD719
K D705C
724
J3
J89IC701
+
C717C722
+
R715
R70
5
R706
R71
6
D717
C878+
JF2
JF3
JF4
JF5
JF7
JF8
JF9
JF6
C72
1
R70
1
C718
J88
R32
1
R318
Q305
R509
B EQ502
C81
6
+
C815
R818
D80
3
KD81
0
KR821
R602
R601
R817C818
J48
+
J42
D802
K
C81
4
+
R81
4
C804
+
C803
L801
J87
R82
2 C821
C807
J63
J60
+
C819
C806
C81
3C81
2
C51
0
IC501
14
5
R533
R30
2
J2J1
J85
CE
R720
EC
KD714R711
J5
R10
03
R10
04
R517
R53
5
Q505
R51
6
R53
0
J83
J71
C503
R314
+C312
+
C303R315
D301
R10
07
D808K
D809K
C81
0
C811
K
D807K
D80
6
D805
K
D80
4
K (K).
R221
(S)1
+C30
4
FB
301
J302
Q304L301
EC
Q302
R86
2Q885
EB
J301
D70
8
K
D60
1C
611
D70
4
F70
1
2
1
(G)
S701
+
C71
1
C60
3
+
R710
R82
5
JF1
J16
J52
C10
01
+
J9 J8 J69
C901
R81
3 R804
C50
8
K D506
KD505
J22
R529
J72
R604
B E
CQ601
C602
D606
(F)
12345
X1001
C10
06
R10
09
C10
10
1
R708R707
T701
C709
Q702CE
J38
3
45
6
7
8
9
CRT
D860K
C86
0
C871
R866
Q871EB
R879
R894
R20
1
CF201
+
C20
9
D201
C205
+ +C20
8
SF
202
5
5
L203
C214
C213
C212
C211
R61
0
R60
3
R607
Q604
T601
IF2
IF1
33V
B+
TU
AGC
TU201
SC401
BE
Q602
R605
R609
Q603
EB
L601
R606
R40
2
1
16
3233
48
IC801
L802
C215
+
J68
J64
C203
J56
C21
0 C202
R204
+C801
J55
C20
1
L201
C80
5
++C820
C80
2
+ C20
6
RMC001
S1004 S1003 S1002 S1001
KD10
01
C1009
+
J6
IC1001
R10
16
R10
17
R1002
R1001
J43
J44
C71
5
C207 SF201
R60
8
J32
C30
1
+
F7287BMN1
F7288BMN1
A
A
+
C40
6
D40
1K
R512
R513
L100
2
C10
03C
1002
R802R801R803
J54
C80
9
X801
C219
R216
R218
C220C21
8 R217
Q203
R21
5
R20
7
R20
6
R21
4C204
L205
R21
0 D20
2Q
202
Q201
R20
9R
208
L204
R20
5C21
7
D602
J45
J47
J53
L602
C401+
4
(H).
C60
4
+
C60
5
K
D402
R401
C404C405
1
IC1002J73
R71
4C702
D702
PR701
C704
KD404
K
D40
5
K
D406
D40
7
K
R406
R40
7
J65
R805R806R807
C703
D701
D703
3
2
1
(A)
R61
2
R61
7
C601
C609
R616
+C608
R611
C713
D710
Q887EB
R88
1C
873
Q872 E
B
C874K
D812
R883C876
BE
Q883R892
C862
D861
K
R885
1
4
(H)
C310
R31
7
L302
1
(SH
)
(S).
R31
6
C31
1
R88
0
C87
2
B
E
Q87
0
R864
R893
D862K
C861
R898
R305+R313
+C307C302
+
R304
R303R306
R312
Q30
3
EC Q301
R307
C309
R311
C308
FB601
R10
23
R10
08R
1018
D10
02
K
L202
C408+
R219
C313
C314
L303
R319
R536
J17
J15
D60
5
C607
+
D503
R515
R52
3
C50
9
R51
0
Q501 E
B
R1011
R1012R718
R709 R301
J12
D709C712
+Q706
J7+
C714 D711J84
R719
IC10
03
R10
10
Q1001R1025
R1019
R615
JF10
R618
L100
1C
1012
IC1004
R10
26
R1021
R10
22
D1003K
R1014
C10
13
+C705
C701
R88
7
C87
9
L861
+C707 R70
2
R703
C725
R10
05
R10
06
J24
J29
J28J30
R81
9
R82
0
Q50
6
J86
R613
D60
4
C606
K
D60
7
J79
C81
7
Q707
Q70
3
R502
J77
J78
J80
J91
Q40
2
R41
9R
420
R418
Q40
1
R403
C61
0
Q701
R72
2
FB701
C708
JF15
L701
JF12
R1027
R1028
R1029R
1031
R1030
C710
+
FB702
D70
7
JF16
R320
R704
SD
A
SC
L
CLK
SER
DA
T
GND
J92
C1008
R10
15R
211
Q507
J81
R537
J19
B E
Q503
D409 K
R222
R41
3
D410K
D41
1
K
D41
2
K
R414
C1015
C10
05
C10
04
R1034R1033
Q10
03
Q10
02
R524
R52
5
J93
C72
8
R72
6
C216
C22
4C
225
J96D81
1
K
J103
R89
9
J98
PRINTED WIRING BOARD (N1 A Version)Copper side.
1
I
H
G
F
E
D
C
B
A
2 3 4 5 6 7
13
37GQ-20H
WAVEFORM MEASUREMENT CONDITION:Colour bar genetator signal of 70 dB from RF input.
1. The unit of resistance «ohm»is omitted (K=1000ohms. M= Megaohm).2. All resistors are 1/8 watt. unless otherwise noted.3. All capacitors are µF, unless otherwise noted (P=µµF).4. The capacitor with Part No. RC-FZ9XXXBMNJ isdesigned to with stand 63V.
NOTE:
SERVICE PRECAUTION:
DESCRIPTION OF SCHEMATIC DIAGRAM
SAFETY NOTE:1. DISCONNECT THE AC PLUG FROM THE ACOUTLET BEFORE REPLACING PARTS.
2. SEMICONDUCTOR HEAT SINKS SHOULD BEREGARDED AS POTENTIAL SHOCK HAZARDSWHEN THE CHASSIS IS OPERATING.
IMPOTANT SAFETY NOTE:
PARTS MARKED WITH « » ( ) AREIMPORTANT FOR MAINTAINING THE SAFETYOF THE SET. BE SURE TO REPLACE THESEPARTS WITH SPECIFIED ONES FORMAINTAINING THE SAFETY AND PERFORMAN-CE OF THE SET.
!
CAUTIONThis circuit diagram is original one,therefore there may be slight differencefrom yours.
1 2 3 4 5
6 7 8 9 10
11 12 13 14 15
CH1 100V A 2µs 200V VERT
CH1 FREQ = 100KHzCH1 P-P = 504 V
CH1 100V A 2µs 100V VERT
CH1 FREQ = 100KHzCH1 P-P = 472 V
CH1 2V A 10µs -1.00V VERT
CH1 FREQ = 15.6KHzCH1 P-P = 8.56 V
CH1 200V A 10µs 200V VERT
CH1 FREQ = 15.6KHzCH1 P-P = 1.00 kV
CH1 1V A 10µs 1.00V VERT
CH1 FREQ = 15.6KHzCH1 P-P = 5.40 V
CH1 1V A 5ms 2.50 V VERT
THE AREA ENCLOSED BY THIS LINE ( )IS DIRECTLY CONNECTED WITH AC MAINSVOLTAGE.WHEN SERVICING THE AREA, CONNECT ANISOLATING TRANSFORMER BETWEEN TVRECEIVER AND AC LINE TO ELIMINATEHAZARD OF ELECTRIC SHOCK.
CH1 FREQ = 50.0 HzCH1 P-P = 4.80 V
CH1 500mV A 5ms 1.00V VERT
CH1 FREQ = 50.0 HzCH1 P-P = 1.48 V
CH1 500mV A 5ms -500mV VERT
CH1 FREQ = 50.0 HzCH1 P-P = 1.94 V
CH1 10V A 5ms -10.0mV VERT
CH1 FREQ = 50.0 HzCH1 P-P = 38.4 V
CH1 1V A 5ms 2.50 V VERT
CH1 FREQ = 1.00 KHzCH1 P-P = 4.44 V
CH1 5V A 500µs 0.0 V VERT
CH1 FREQ = 412 HzCH1 P-P = 16.8 V
CH1 500mV A 10µs TVFLD 25
CH1 FREQ = 15.6 KHzCH1 P-P = 1.84 V
CH1 20V A 10µs 150 V VERT
CH1 FREQ = 15.6 KHzCH1 P-P = 74.4 V
CH1 20V A 10µs 150 V VERT
CH1 FREQ = 15.6 KHzCH1 P-P = 72.8 V
CH1 FREQ = 15.6 KHzCH1 P-P = 70.4 V
CH1 20V A 10µs 150 V VERT
gndgnd
gnd gnd gnd
gnd
gnd
gnd
gnd
gnd
gnd
gnd gnd gnd gnd
14
37GQ-20H
2
25
3
3
FOCU
S
1
1
L3
4
4
-10V
+10V
JF13
JF15
QPWBF7287BMN0
-2
+20V
+8V
+10V
+105
V
S100
1
K007
9GE
S100
2
K007
9GE
C702
10nF
(250
V)KZ
0029
C703
10nF
(250
V)KZ
0029
C704
10nF
(250
V)KZ
0029
D701
DX05
71
D702
DX05
71
D703
DX05
71
D704
DX05
71
R702
470K
(1/2
W)
D707
DX05
05
D708
DX05
61
D709
DX05
90BM
MBR
1100
RL
D710
DX05
04
T701
Z058
0BM
8 3
16 15 11 1312
D8 D9 D10 D11 1212 VCC13 GND14
L701
CILF
0160
BM(G
)N0
207C
E
PR70
1
P002
8
C507
220n
F
R524
3K9
D717
1N49
37
R880 47
0
C862
470p
F
(L2)
QTIP
M00
17CE
FM
R888
0
Q87
0TX
0181
BF42
2
9
F701
T3.1
5
R879
470
Q87
2TX
0181
BF42
2
(H)
QCN
W-2
834B
MZZ
5
C874
1nF
(500
V)12
R894
1K
R885
2K7
(1/2
W)
R883
2K7
(1/2
W)
L861
12uH
C860
470p
FR8
6615
K(2
W)
R862
15K
(2W
)
7
R899
0
8
R887
2K7
(1/2
W)
Q88
5TX
0180
BM
C701
470n
F(2
75V)
FZ01
60BM
C871
470p
F
6
R892
1K
C876
4.7n
F(2
KV)
R864 15
K
(2W
)
D811
DX05
51
D862
DX05
51
(A)
N030
4CE
R893
1K
R881
470
C861
470p
F
D861
DX05
51
4
Q88
3TX
0180
BM
C872
470p
F
(L3)
QTIP
M00
17CE
FM
R898
0
S701
P058
8
C873
470p
F
Q87
1TX
0181
BF42
2
3
D860 DX
0551
Q88
7TX
0180
BM
(K)
QCN
W-2
835B
MZZ
D812
DX05
51
C878
10uF (200
V)
C715
100n
F
Q70
2TX
0218
BC33
7-40
R710
220
(1/2
W)
JF11
C707
10uF
(16V
)
C710
220u
F(2
5V)
C705 47uF
(400
V)EZ
0140
BM
C879
100p
F
Q70
5
2SA1
037
R716
47K
(1/2
W)
C718
47nF
400V
R701
470K
(1/2
W)
R724
150
R725
390
R502
1K
C723
100p
F
FB70
2BL
N-00
37CE
CRT
7 5 4 9 3
68
1
C711
100u
F(1
60V)
R718
4K7
C728
220p
F(2
Kv)
C713
220u
F(1
6V)
C712
220u
F(1
6V)
FB70
1D7
16DX
0551
BMR7
1510
R703 22
D705
DX05
51
R726 0 (TQ)
D721
DX05
04
D722
DX05
041
2
13
15
14
SCH
EMAT
IC D
IAG
RA
M (0
1 Ve
rsio
n).
Page 16Page 15
1
I
H
G
F
E
D
C
B
A
2 3 4 5 6 7
15
37GQ-20H
H.V.
FOCO
G2
1 2 3 4
1
+8V
+8V
+5V
B
-10V
SERJ77
+7V
-10V
+5V
A
-25V
+10V
PC3
+105
V
+105
V
.
.
C708
15nF
C709
2n2
(4Kv
)
C603
220u
F(1
0V)
C604
220u
F(1
0V)
D706 C6
V2EX
0584
R704
100
R705
330
(TQ)
R707
8M2
(1/2
W)
(UA)
R708
8M2
(1/2
W)
(UA)
D711
DX05
03
1N49
33
D710
DX05
04
1N49
34
D714
B5V6
Q70
12S
C241
2
Q70
3TX
0218
BC33
7-40
R512
10K
R513
68K
Q50
1BC
636
R604
470
(1/2
W)
R606
6.8
(1/2
W)
R607
1 (1/2
W)
R610
27 (1/2
W)
R611
27 (1/2
W)
R612
2.7
(1W
)
R615
10 (1/2
W)
R616
3K3
(1/2
W)
C608 1u
F(1
60V)
C609
470n
F(2
50V)
FZ01
74BM
Q60
1TX
0132
BU50
8D
Q60
42S
C241
2
L601
4.7u
F(C
F)
L602
22uH
(CF)
D601
DX05
51
D602
DX05
051N
4935
D604
DX05
061N
4936
D6 DX 1N
R614
560
11 7 10
3
8
5 6
1413 9 10
IC70
1TD
A168
33
GND1
FB2
33
D4
D5
D6
D7D8 D
9 D10 D11 1212 VCC13 GND14
(H)
QCN
W-2
834B
MZZ
(F)
N050
5CE
R714 82
0(1
/2W
)
R517
180K
C503
330n
F
Q50
52S
A103
7
+VS
-VS_ +
IC50
1UA
741
8 7 6 54321
220n
F
R519
8K2
R617
1K
Q50
2BC
635
D503
1N49
33
C717
10uF
(16V
)
R603
330
(1/2
W)
R609
2.2
(1/2
W)
Q60
3TX
0112
BC63
6
R605
6.8
(1/2
W)
Q60
2BC
635
TX01
08BM
R523
560
R536
4K7
R516 1K
D605
DX05
041N
4934
R613
15K
C606
22nF
R706
680
R710
220
(1/2
W)
C607
100u
F(3
5V)
C722
10uF
(16V
)
R722
120
C610
22nF
D607
EX05
49BM
7V5
R510
1 (1/2
W)
R533
120K
Q50
92S
A103
7
R535
820K
Q70
7TX
0217
BC33
7
D718
5V6
R721
22
R720
560
(1/2
W)
R719 2K
7
Q70
8
2SC2
412K
Q
R502
1K
R530 180K
C510
100p
F
C724
100p
F
C723
100p
F
R509
1K
R537
15K
C726
2.2u
F
R102
7
100
R
J67
1uF
Q50
72S
C241
2KQ
C601
6n8
1K5
R718
4K7
R534
1K5
D603
DX00
45R6
0818
K
R538
2K2
C725
2n2
(4Kv
)
Q50
62S
A103
7
R525
120
C713
220u
F(1
6V)
220u
F(1
6V)
R723
1K
C605
100n
F
T601 NF
2072
BM4 2 5
6
9
D712
6V2
(2%
)
R711
22
FB70
1
BLN-
0020
D716
DX05
51BM
R715
10
Q70
62S
A103
7
D723
DX05
03
C714
470u
F(1
0V)
D721
DX05
04
3
4
7
8
Page 17Pa
ge 1
4
8 9 10 11 12 13 14
I
H
G
F
E
D
C
B
A
SCHEMATIC DIAGRAM (01 Version).
16
37GQ-20H
RMC0
01
12
34
5
+20V
JF16
AUDI
O VT BH BU
VERT
B G
G
B
G
B
G
B
+20V
BG
VERT
I
I
-25V
+105
V
+5V
B
R
R
R
R
R
BL
+105
V
VSYN
C
VSYN
C
SDA AG
C
FB
VSYN
C
SS
FLB
SCL
FLB
L/L'
FB
PC5
.
3
2
CU02
22CE
1
S100
2
K007
9GE
S100
3
K007
9GE
S100
4
K007
9GE
C805
1uF
C806
100n
FC8
0710
0nF
C808
100n
F
C809
100n
F
C810
100n
F
C811
100n
F
C901
100n
F X801
R801
220
R802
220 R8
0322
0
R804
1K
R809
47K
R810 10
0
R811 10
0
R812
100
R822
330K
C819
1uF
R301
4K7
(1/2
W)
R304
2.2
(1/2
W)
R305
4K7
(1/2
W)
R306
100K
R307
10K
R310
100
R311
100K
R313
560
R314
1K
C302
1uF
C304
100u
F(1
6V)
C307
47uF
(16V
)
Q30
1BC
337
TX02
17
Q30
2BC
327
TX02
16
Q30
3
2SA1
037
Q30
42S
C241
2
L301
3.3u
H(D
F)
C820
L100
110
uH(D
F)
R100
91K
R101
027
KR101
14K
7
(1/2
W)
R101
24K
7
(1/2
W)
R101
34K
7
(1/2
W)
R101
422
K
C100
2
22pF
C100
3
22pF
C100
622
pF
R101
633
0
R101
7
270
D100
1PX
0104
BM
C309
10nF
C308
1uF
R101
522
K
(K)
QCNW
-283
5BM
ZZ
C100
515
pF
R302
4K7
(1/2
W)
R823
1K
R102
24K
7
R102
05K
6
C101
122
0nF
(25V
)
R808
1K
(S)
FB30
1BL
N003
7
IC10
04PS
T529
22
11
33
R303
33K
Q30
52S
C241
2
R221
R222
220K
D805 5V6
CVBS
IN2
28
BS29
BEXT
30
GEXT
31
REXT
32
XTAL
53
BTUN
52
HALF
CTR
51
FBOS
D50
ROSD
49
FB33
Y/C34
CHR35
APR36
UIN37
VIN38
YIN39
YOUT40
VOUT41
UOUT42
BOUT43
GOUT44
ROUT45
ISENS46
BOSD47
GOSD48
R321
1K
R318
15K
D301
DX00
45BM
R312
10K
C303
1uF
(160
V)
C312
220u
F(1
0V)
C315
100p
F
Q50
3
TX01
08BM
BC63
5
R824 75
R825 75
R826
75
Q10
032S
A103
7KQ
C101
5
330n
F
R103
415
0K
R103
34K
7
C101
410
uF(1
6V)
C101
0
100n
FR1
023
4K7
R806
1K
R101
810
K
R100
4
100
L100
268
uH
R315
10K
R100
5
100
C100
415
pF
R102
54K
7
R100
710
0
R102
60
R100
610
0
R102
44K
7 R807
1K
R102
14K
7
R100
83K
3
X100
18M
Hz
R100
110
0
C100
147
0uF
(6.3
V)
R100
2
100
R805
1K
D100
25V
6
R101
91K
5
R100
3
100
Q10
022S
C241
2
D807
5V6
Q10
01PH
2369
IC10
03IX
1003
7
C101
210
0nF
IC10
01S
T638
7T1/
FMI/T
R
DA444
DA343
DA242
DA141
DA040
VDD39
SCL38
SDA37
PC236
PC335
PC434
DA5
1
PB1
2
PB2
3
PB3
4
PB4
5
PB5
6
PB6
7
PA0
8
PA1
9
PA2
10
PA3
11
1212
PA413
PA514
PA615
PA716
VSS17
R18
G19
B20
BLANK21
HSYNC22
PC5
33
PC6
32
PC7
31
VS30
RESE
T29
XTAL
28
XTAL
27
2626
OSD
25
OSD
24
VSYN
C23
R103
239
K
J19
3K3
D804
5V6
D806
5V6
C222
C100
847
nF
C100
947
uF(1
0V)
C100
722
nF
6
11
10
Page 14
1 2 3 4 5 6 7
R
Q
P
O
N
M
L
K
J
Page 17SCHEMATIC DIAGRAM (01 Version).
17
37GQ-20H
R OUT
R IN
L OUT
L IN
SS
FS
V OUT
V IN
IFOU
T
IF O
UT
5V BL BH BU VT AGC
RG
B
SHARP
ELEC
TRON
ICA
ESPA
NA S
.A.
NOMB
RECO
DIGO
ESCA
LA
MODE
LOFE
CHA
REVI
SION
ESN
123456
FECH
A
1:1
QK
ITP
7B
MN
2
08-03-2000
87
*SQUAD
12
34
5
37GQ-20H
TU201
RTUNH0125BMZZ
RE
ALI
ZAD
OV
ER
IFIC
AD
OA
PR
OB
AD
O
DA
TE:
DA
TE:
DA
TE:
+5V
A
+8V
08-03-2000
MOD. HASTA No. 81
SERVICIO
SER
CLK
DAT
SCL
SDA
GND
J77
J80
J79
J91
J78
J92
JF17
JF18
SCART
TUNER
01-06-00
MOD. HASTA No.98
01-06-00
MOD. HASTA No.59
11-02-2000
MOD. HASTA No.76
24-02-2000
07-03-2000
MOD. HASTA No.79
MOD. HASTA No.100
AUDI
O
+5VA
G
B
BH
BU
VT
B
+5V
A
+5V
A
+8V
+8V
R
BL
PC3
PC2
SDA
SCL
PC5
FB
SS
AGC
..
..
.
1234561011
17
19
13
15
9
11
5
7
1
3
2
4
6
8
10
12
14
16
18
20
C202
1nF
L801
3.3u
H
(DF)
L802
3.3u
H
C805
1uF
C808
100n
F
C901
100n
F X801
B024
34.
43M
Hz
C211
10nF
C212
10nF
C213
10nF
C214
10nF
R201
220
R204
150
R212
4K7
R804
1K
R813
27K
R815
22K
R817
2K2
R818
27K
R601
2K2
R602
470
R821
8K2
C301
3.3u
F
C820
1uF
D801
DX00
45BM
D802
DX05
51
R211
47K
R512
10K
R513
68K
D505
DX05
51D5
06DX
0551
C609
470n
F(2
50V)
FZ01
74BM
D606
DX05
051N
4935
R403
220
R408
10K
R410
100K
R411
6K8
R412
6K8
R413 22
0(T
Q)
R414
220
(TQ)
F401
LN00
37
C401
1uF
C404
1nF
C405
1nF
C406
22uF
C408 47
uF(1
6V)
D401
7,5V D4
02
7,5V
Q401
2SC2
412
SC40
1CZ
2107
BM
21
(F)
N050
5CE
C201
33pF
L201
390m
H
R529
150
(1/2
W)
D404
7,5V
D405
7,5V
D406
7,5V
D407
7,5V
C205
1uF
C815
2.2u
F
C508
330n
F
C208
1uF
C207
10uF
(16V
)
R416
47
R407
75 (TQ)
R401
75 (TQ)
R219
2K2R2
20 100
L202
12uH
(DF)
R221 (0
)
R202
1K
C221
100p
FQ2
042S
C241
2
R814 1M
IC80
1S
TV22
36
IFPL
L17
GND
IF18
AM/F
MOUT
19
VCC
20
CVBS
21
AUDI
N22
IF1
23
IF2
24
VCC
25
CVBS
IN1
26
GND
27
CVBS
IN2
28
BS29
BEXT
30
AGC16
SAW15
PIFIN14
PIFIN13
AGC12
VIF11
AGC10
SIFIN9
SIFIN8
FMCAP7
AUDIO6
GND5
VCC4
SDA3
SCL2
SLPF1
SSC
64
HOUT
63
VERT
62
BCL
61
CVBO
UT2
60
VCC
59
CVBS
OUT1
58
GND
57
VAMP
56
CLPF
55
XTAL
54
XTAL
53
BTUN
52
HALF
CTR
51
0 )
R402
68 (1/2
W)
R420
0
R418 0
R417
2.2u
H
C409
1nF
D409
EX05
49BM
7V5
D410
EX54
9BM 7V
5
D411
EX05
49BM
7V5
27R1
028
100
R102
9
100
R103
0
100
R103
1
100
Q503
TX01
08BM
BC63
5
R819
100
R820
100
R826
75
C223
8,2p
F(5
00V)
SF20
1G1
952M
54
3
1 2
R515
100
D810 6V
8
R511
1.8
(1/2
W)
R404
75 (TQ)
C206
22nF
R409
22K
D808
5V6
D403
C5V6
D412
EX05
49BM
7V5
R816
2K7
C216
220n
F
R405
75 (TQ)
C822
100u
F(1
6V)
C802
100n
F
C801
470u
F(1
0V)
C804
100n
F
C210
100n
F
C812
100n
F
C203
330n
F(2
5V)
C813
4n7
C209
100u
F(6
.3V)
C803
470u
F(1
0V)
C817
100u
F(6
.3V)
R406 75
(1/4
W)
C818
100n
F
C814
1uF
D803
C5V1
CF20
1
FILC
0023
R415
100K
C816
4n7
C222
100n
F
C215
47uF
(10V
)
C224
220n
F
R213
33K
R203
1K
5
12
9
Page 15
8 9 10 11 12 13 14
R
Q
P
O
N
M
L
K
J
Page
16
SCHEMATIC DIAGRAM (01 Version).
18
37GQ-20H
MARK *: SPARE PARTS DELIVERY SECTION
REF No. PARTS DESCRIPTION * CODE
PICTURE TUBE
VB34EAC0136*N CRT 14" A34EAC01X36 S BZ
RCILG0415BMZZ DEGAUSSING COIL 14" S AM
PRINTED WIRING BOARDS
PWB-A DUNTK7287CJV3 ADJUST CHASSIS 37GQ20H S --
PWB-B DUNTK7288CJV3 ADJUST CRT 37GQ20H S --
DSETU7287CJV3 ADJUST MOTHER SET 37GQ20H S BV
PWB-A MOTHER UNIT
TUNER
TU 0201 RTUNH0125BMZZ UV134/IEC UHF BALANCED S AY
INTEGRATED CIRCUITS
IC 0501 RH-IX1783BMZZ IC UA741CDR TEXAS INSTRUMENTS S AD
IC 0701 RH-IX1782BMZZ IC TDA16833 SIEMENS S AL
IC 0801 RH-IX1792BMZZ IC STV2236 SGS-THOMSON -PAL S AX
IC 1001 RH-IX1780BMZZ IC ST6387 SGS-THOMSON S BB
IC 1003 RH-IX0037CEZZ IC UPC574J 33V NEC S AD
IC 1004 VHIPST529C2-1 IC PST529C2 MITSUMI S AE
TRANSISTORS
Q 0204 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA
Q 0301 RH-TX0217BMZZ TRT BC337 PHILIPS S AB
Q 0302 RH-TX0216BMZZ TRT BC327 S AA
Q 0303 VS2SA1037KQ-1 TRT BC807 SMD S AA
Q 0304 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA
Q 0305 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA
Q 0401 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA
Q 0501 RH-TX0112BMZZ TRT BC636 S AB
Q 0502 RH-TX0108BMZZ TRT BC635 S AC
Q 0503 RH-TX0108BMZZ TRT BC635 S AC
Q 0505 VS2SA1037KQ-1 TRT BC807 SMD S AA
Q 0506 VS2SA1037KQ-1 TRT BC807 SMD S AA
Q 0507 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA
Q 0509 VS2SA1037KQ-1 TRT BC807 SMD S AA
Q 0601 RH-TX0132BMZZ TRT BU508DFI S AM
Q 0602 RH-TX0108BMZZ TRT BC635 S AC
Q 0603 RH-TX0112BMZZ TRT BC636 S AB
Q 0604 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA
Q 0701 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA
Q 0702 RH-TX0218BMZZ TRT BC337-40 PHILIPS S AA
Q 0703 RH-TX0218BMZZ TRT BC337-40 PHILIPS S AA
Q 0705 VS2SA1037KQ-1 TRT BC807 SMD S AA
Q 0706 VS2SA1037KQ-1 TRT BC807 SMD S AA
Q 0707 RH-TX0217BMZZ TRT BC337 PHILIPS S AB
!
!
PART LIST REPLACEMENT PARTS
Replacement parts which have special safety characteristics are identi-fied in this manual. Electrical components having such features are iden-tified by in the Replacement Part List.The use of a substitute replacement part which does not have the samesafety characteristics as the factory recommended is not permitted.Replacement parts not shown in this service manual may create shockfire, or other hazards.
HOW TO ORDER REPLACEMENT PARTSTo have your order completed promplty and corretly please supply thefollowing information.
1. MODEL NUMBER3. PART NO.5. CODE
2. REF. NO.4. DESCRIPTION6. QUANTITY
REF No. PARTS DESCRIPTION * CODE
Q 0708 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA
Q 1001 RH-TX0111BMZZ TRT PH-2369 PHILIPS S AB
Q 1002 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA
Q 1003 VS2SA1037KQ-1 TRT BC807 SMD S AA
DIODES
D 0301 RH-DX0045BMZZ DIODE 1N4148 S AA
D 0401 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA
D 0402 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA
D 0403 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA
D 0404 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA
D 0405 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA
D 0406 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA
D 0407 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA
D 0409 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA
D 0410 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA
D 0411 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA
D 0412 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA
D 0503 RH-DX0503BMZZ DIODE 1N4933 S AB
D 0505 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA
D 0506 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA
D 0601 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA
D 0602 RH-DX0505BMZZ DIODE 1N4935 S AE
D 0603 RH-DX0045BMZZ DIODE 1N4148 S AA
D 0604 RH-DX0506BMZZ DIODE 1N4936 S AB
D 0605 RH-DX0504BMZZ DIODE 1N4934 S AB
D 0606 RH-DX0505BMZZ DIODE 1N4935 S AE
D 0607 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA
D 0701 RH-DX0571BMZZ DIODE 1N4005 ACPA S AA
D 0702 RH-DX0571BMZZ DIODE 1N4005 ACPA S AA
D 0703 RH-DX0571BMZZ DIODE 1N4005 ACPA S AA
D 0704 RH-DX0571BMZZ DIODE 1N4005 ACPA S AA
D 0705 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA
D 0706 RH-EX0584BMZZ ZENER DIODE TZMBC6V2 TFK SMD 2% S AA
D 0707 RH-DX0505BMZZ DIODE 1N4935 S AE
D 0708 RH-DX0561BMZZ DIODE RGP15J FAGOR S AD
D 0709 RH-DX0590BMZZ DIODE MBR1100RL MOTOROLA S AD
D 0710 RH-DX0504BMZZ DIODE 1N4934 S AB
D 0711 RH-DX0503BMZZ DIODE 1N4933 S AB
D 0712 RH-EX0547BMZZ ZENER DIODE TZMC6V2 TFK SMD S AA
D 0714 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA
D 0716 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA
D 0717 RH-DX0507BMZZ DIODE 1N4937 S AB
D 0718 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA
D 0721 RH-DX0504BMZZ DIODE 1N4934 S AB
D 0722 RH-DX0504BMZZ DIODE 1N4934 S AB
D 0723 RH-DX0503BMZZ DIODE 1N4933 S AB
D 0801 RH-DX0045BMZZ DIODE 1N4148 S AA
D 0802 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA
D 0803 RH-EX0545BMZZ ZENER DIODE TZMC5V1 TFK SMD S AA
D 0804 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA
D 0805 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA
D 0806 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA
D 0807 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA
D 0808 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA
D 0810 RH-EX0548BMZZ ZENER DIODE TZMC6V8 TFK SMD S AA
D 1001 RH-PX0104BMZZ LED ROJO S AC
D 1002 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA
PACKAGED CIRCUITS
PR 0701 RMPTP0028CEZZ PTC RESISTOR S AE
X 0801 RCRSB0243BMZZ CRYSTAL 473.000.6835 (4,43 MHZ) A AE
COILS
L 0201 RCILP0227BMZZ COIL SMD 390NH LQN1HR39J S AE
L 0202 VP-DF120K0000 PEAK COIL 12UH 10% S AA
L 0301 VP-DF3R3K0000 PEAK COIL 3,3UH 10% S AA
L 0601 VP-CF4R7K0000 PEAK COIL 4,7UH 10% S AA
L 0602 VP-CF220K0000 PEAK COIL 22UH 10% S AA
L 0701 RCILF0160BMZZ AC.FILTER 30MH MURATA S AF
19
37GQ-20H
REF No. PARTS DESCRIPTION * CODE
L 0801 VP-DF3R3K0000 PEAK COIL 3,3UH 10% S AA
L 0802 VP-NM3R3MR19N COIL 3,3UH SMD S AC
L 1001 VP-DF100K0000 PEAK COIL 10UH 10% S AA
L 1002 VP-NM680K3R5N COIL 68UH SMD S AD
CERAMIC FILTERS
CF 0201 RFILC0023CEZZ SOUND FILTER (TAPED) S AC
SF 0201 RFILC0282BMZZ SAW FILTER J1952M 38.90MHZ S AM
X 1001 RFILC0121GEZZ FILTER CST8.00MTW MURATA S AD
TRANSFORMERS
T 0601 RTRNF2072BMZZ SMT 8228 001 3493 PHILIPS 14" S AW
T 0701 RTRNZ0580BMZZ SMT 8228 001 3500 PHILIPS 14" S AL
CAPACITORS
C 0201 VCCCTV1HH220J CERAM C 22PF 50V 2125SMD S AA
C 0202 VCKYTV1HB102K CERAM C 1NF 50V 2125SMD S AA
C 0203 VCKYTV1EF334Z CERAM C 330NF 25V 2125SMD S AB
C 0205 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA
C 0206 VCKYTV1HF223Z CERAM C 22NF 50V 2125SMD S AA
C 0207 VCEAGA1CW106M ELEC C 10UF 20% 16V S AA
C 0208 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA
C 0209 VCEAGA0JW107M ELEC C 100UF 20% 6,3V S AA
C 0210 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA
C 0211 VCKYTV1HF103Z CERAM C 10NF 50V 2125SMD S AA
C 0212 VCKYTV1HF103Z CERAM C 10NF 50V 2125SMD S AA
C 0213 VCKYTV1HF103Z CERAM C 10NF 50V 2125SMD S AA
C 0214 VCKYTV1HF103Z CERAM C 10NF 50V 2125SMD S AA
C 0215 VCEAGA1AW476M ELEC C 47UF 20% 10V S AA
C 0216 VCKYTV1HF224Z CERAM C 220NF 50V 2125SMD S AB
C 0221 VCCCTV1HH101J CERAM C 100PF 50V 2125SMD S AA
C 0222 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA
C 0223 VCCWPA2HL8R2C C 8,2PF 0,25 N1500 500V S AB
C 0224 VCKYTV1HB104K CERAM C 100NF 50V 2125SMD S AA
C 0225 VCKYTV1HB104K CERAM C 100NF 50V 2125SMD S AA
C 0301 VCEAGA1HW225M ELEC C 2,2UF 20% 50V S AA
C 0302 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA
C 0303 VCEAGA2CW105M ELEC C 1UF 20% 160V S AB
C 0304 VCEAGA1CW107M ELEC C 100UF 20% 16V S AA
C 0307 VCEAGA1CW476M ELEC C 47UF 20% 16V S AA
C 0308 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA
C 0309 VCKYTV1HF103Z CERAM C 10NF 50V 2125SMD S AA
C 0312 VCEAGA1AW227M ELEC C 220UF 20% 10V S AA
C 0315 VCCCTV1HH101J CERAM C 100PF 50V 2125SMD S AA
C 0401 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA
C 0404 VCKYTV1HB102K CERAM C 1NF 50V 2125SMD S AA
C 0405 VCKYTV1HB102K CERAM C 1NF 50V 2125SMD S AA
C 0406 VCEAGA1HW226M ELEC C 22UF 20% 50V S AA
C 0408 VCEAGA1CW476M ELEC C 47UF 20% 16V S AA
C 0409 VCKYTV1HB102K CERAM C 1NF 50V 2125SMD S AA
C 0503 RC-FZ9334BMNJ POL FILM C 330NF 5% 63V S AB
C 0507 VCKYTV1HF224Z CERAM C 220NF 50V 2125SMD S AB
C 0508 RC-FZ9334BMNJ POL FILM C 330NF 5% 63V S AB
C 0510 VCCCTV1HH101J CERAM C 100PF 50V 2125SMD S AA
C 0601 RC-FZ0135BMZZ POLIP C B32650 6N8 1,5KV S AE
C 0603 VCEAGA1AW227M ELEC C 220UF 20% 10V S AA
C 0604 VCEAGA1AW227M ELEC C 220UF 20% 10V S AA
C 0605 RC-FZ9104BMNJ POL FILM C 100NF 5% 63V S AA
C 0606 VCKYTV1HF223Z CERAM C 22NF 50V 2125SMD S AA
C 0607 VCEAGA1VW107M ELEC C 100UF 20% 35V S AA
C 0608 VCEAGA2CW105M ELEC C 1UF 20% 160V S AB
C 0609 RC-FZ0174BMZZ POLIP C B32652 470NF 250V S AC
C 0610 VCKYTV1HB223K CERAM C 22NF 50V 2125SMD S AA
C 0701 RC-FZ0160BMZZ CAP B1133-D1474-M SIEMENS S AF
C 0702 RC-KZ0029CEZZ CERAM C 10NF 80,20% 250V S AB
C 0703 RC-KZ0029CEZZ CERAM C 10NF 80,20% 250V S AB
C 0704 RC-KZ0029CEZZ CERAM C 10NF 80,20% 250V S AB
C 0705 RC-EZ0140BMZZ ELEC C 47UF 400V TROBO S AK
C 0707 VCEAGA1CW106M ELEC C 10UF 20% 16V S AA
C 0708 VCKYTV1HB153K CERAM C 15NF 50V 2125SMD S AA
!
!
!
REF No. PARTS DESCRIPTION * CODE
C 0709 RC-KZ0160BMZZ CERAM C 2,2NF 4KV X1Y1 S AC
C 0710 VCEAGA1EW227M ELEC C 220UF 20% 25V S AA
C 0711 VCEAGH2CW107M ELEC C 100MF 20% 160V S AE
C 0712 VCEAGA1CW227M ELEC C 220UF 20% 16V S AA
C 0713 VCEAGA1CW227M ELEC C 220UF 20% 16V S AA
C 0714 VCEAGA1AW477M ELEC C 470UF 20% 10V S AA
C 0715 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA
C 0717 VCEAGA1CW106M ELEC C 10UF 20% 16V S AA
C 0718 RC-FZ0156BMZZ C B32529-B6473K SIEMENS S AC
C 0722 VCEAGA1CW106M ELEC C 10UF 20% 16V S AA
C 0723 VCCCTV1HH101J CERAM C 100PF 50V 2125SMD S AA
C 0724 VCCCTV1HH101J CERAM C 100PF 50V 2125SMD S AA
C 0725 RC-KZ0160BMZZ CERAM C 2,2NF 4KV X1Y1 S AC
C 0726 VCEAGA1HW225M ELEC C 2,2UF 20% 50V S AA
C 0728 RC-KZ0035CEZZ CERAM C 220PF 2KV S AC
C 0801 VCEAGA1AW477M ELEC C 470UF 20% 10V S AA
C 0802 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA
C 0803 VCEAGA1AW477M ELEC C 470UF 20% 10V S AA
C 0804 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA
C 0805 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA
C 0806 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA
C 0807 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA
C 0808 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA
C 0809 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA
C 0810 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA
C 0811 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA
C 0812 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA
C 0813 VCKYTV1HB472K CERAM C 4,7NF 50V 2125SMD S AA
C 0814 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA
C 0815 VCEAGA1HW225M ELEC C 2,2UF 20% 50V S AA
C 0816 VCKYTV1HB472K CERAM C 4,7NF 50V 2125SMD S AA
C 0817 VCEAGA0JW107M ELEC C 100UF 20% 6,3V S AA
C 0818 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA
C 0819 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA
C 0820 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA
C 0901 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA
C 1001 VCEAGA0JW477M ELEC C 470UF 20% 6,3V S AA
C 1002 VCCCTV1HH220J CERAM C 22PF 50V 2125SMD S AA
C 1003 VCCCTV1HH220J CERAM C 22PF 50V 2125SMD S AA
C 1004 VCCCTV1HH150J CERAM C 15PF 50V 2125SMD S AA
C 1005 VCCCTV1HH150J CERAM C 15PF 50V 2125SMD S AA
C 1006 VCCCTV1HH220J CERAM C 22PF 50V 2125SMD S AA
C 1007 VCKYTV1HF223Z CERAM C 22NF 50V 2125SMD S AA
C 1008 VCKYTV1HF473Z CERAM C 47NF 50V 2125SMD S AA
C 1009 VCEAGA1AW476M ELEC C 47UF 20% 10V S AA
C 1010 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA
C 1011 VCKYTV1EF224Z CERAM C 220NF 25V 2125SMD S AA
C 1012 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA
C 1014 VCEAGA1CW106M ELEC C 10UF 20% 16V S AA
C 1015 VCKYTV1EF334Z CERAM C 330NF 25V 2125SMD S AB
RESISTORS
R 0201 VRS-TV1JD221J 2125 220 OHM 5% 1/10W SMD S AA
R 0202 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 0203 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 0204 VRS-TV1JD151J 2125 150 OHM 5% 1/10W SMD S AA
R 0211 VRS-TV1JD473J 2125 47KOHM 5% 1/10W SMD S AA
R 0212 VRS-TV1JD472J 2125 4.7KOHM 5% 1/10W SMD S AA
R 0213 VRS-TV1JD333J 2125 33KOHM 5% 1/10W SMD S AA
R 0219 VRS-TV1JD222J 2125 2,2KOHM 5% 1/10W SMD S AA
R 0220 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA
R 0221 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA
R 0222 VRS-TV1JD224J 2125 220KOHM 5% 1/10W SMD S AA
R 0301 VRD-RA2HD472J RES 4.7KOHM 5% 1/2W S AA
R 0302 VRD-RA2HD472J RES 4.7KOHM 5% 1/2W S AA
R 0303 VRD-RA2BE333J RES 33KOHM 5% 1/8W S AA
R 0304 RR-XZ0204BMZZ FUS RES 2R2 TAP 5% 1/2W S AA
R 0305 VRD-RA2HD472J RES 4.7KOHM 5% 1/2W S AA
R 0306 VRS-TV1JD104J 2125 100KOHM 5% 1/10W SMD S AA
R 0307 VRS-TV1JD103J 2125 10KOHM 5% 1/10W SMD S AA
!
!
20
37GQ-20H
REF NoPARTS DESCRIPTION * CODE
R 0310 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA
R 0311 VRS-TV1JD104J 2125 100KOHM 5% 1/10W SMD S AA
R 0312 VRS-TV1JD103J 2125 10KOHM 5% 1/10W SMD S AA
R 0313 VRS-TV1JD561J 2125 560 OHM 5% 1/10W SMD S AA
R 0314 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 0315 VRD-RA2BE103J RES 10KOHM 5% 1/8W S AA
R 0318 VRS-TV1JD153J 2125 15KOHM 5% 1/10W SMD S AA
R 0321 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 0401 VRS-TQ2BD750J OX RE 75 OHM 5% 1/8W SMD S AA
R 0402 VRD-RA2HD680J RES 68 OHM 5% 1/2W S AA
R 0403 VRS-TV1JD221J 2125 220 OHM 5% 1/10W SMD S AA
R 0404 VRS-TQ2BD750J OX RE 75 OHM 5% 1/8W SMD S AA
R 0405 VRD-RA2EE750J RES 75 OHM 5% 1/4W S AA
R 0406 VRD-RA2EE750J RES 75 OHM 5% 1/4W S AA
R 0407 VRS-TQ2BD750J OX RE 75 OHM 5% 1/8W SMD S AA
R 0408 VRS-TV1JD103J 2125 10KOHM 5% 1/10W SMD S AA
R 0409 VRS-TV1JD223J 2125 22KOHM 5% 1/10W SMD S AA
R 0410 VRS-TV1JD104J 2125 100KOHM 5% 1/10W SMD S AA
R 0411 VRS-TV1JD682J 2125 6.8KOHM 5% 1/10W SMD S AA
R 0412 VRS-TV1JD682J 2125 6.8KOHM 5% 1/10W SMD S AA
R 0413 VRS-TQ2BD221J OX RE 220 OHM 5% 1/8W SMD S AA
R 0414 VRS-TQ2BD221J OX RE 220 OHM 5% 1/8W SMD S AA
R 0415 VRS-TV1JD104J 2125 100KOHM 5% 1/10W SMD S AA
R 0416 VRS-TV1JD470J 2125 47 OHM 5% 1/10W SMD S AA
R 0417 VP-NM2R2MR16N COIL 2,2UH SMD S AC
R 0418 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA
R 0420 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA
R 0502 VRD-RA2BE102J RES 1KOHM 5% 1/8W S AA
R 0509 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 0510 RR-XZ0200BMZZ FUS RES 1R0 TAP 5% 1/2W S AB
R 0511 VRD-RA2HD1R8J RES 1,8 OHM 5% 1/2W S AA
R 0512 VRS-TV1JD103J 2125 10KOHM 5% 1/10W SMD S AA
R 0513 VRS-TV1JD683J 2125 68KOHM 5% 1/10W SMD S AA
R 0515 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA
R 0516 VRD-RA2BE102J RES 1KOHM 5% 1/8W S AA
R 0517 VRS-TV1JD184J 2125 180KOHM 5% 1/10W SMD S AA
R 0519 VRS-TV1JD822J 2125 8,2KOHM 5% 1/10W SMD S AA
R 0523 VRD-RA2BE561J RES 560 OHM 5% 1/8W S AA
R 0524 VRS-TV1JD392J 2125 3.9KOHM 5% 1/10W SMD S AA
R 0525 VRS-TV1JD121J 2125 120 OHM 5% 1/10W SMD S AA
R 0529 VRD-RA2HD151J RES 150 OHM 5% 1/2W S AA
R 0530 VRD-RA2BE184J RES 180KOHM 5% 1/8W S AA
R 0533 VRS-TV1JD124J 2125 120KOHM 5% 1/10W SMD S AA
R 0534 VRS-TV1JD152J 2125 1.5KOHM 5% 1/10W SMD S AA
R 0535 VRS-TV1JD824J 2125 820KOHM 5% 1/10W SMD S AA
R 0536 VRD-RA2BE472J RES 4,7KOHM 5% 1/8W S AA
R 0537 VRD-RA2BE153J RES 15KOHM 5% 1/8W S AA
R 0538 VRS-TV1JD222J 2125 2,2KOHM 5% 1/10W SMD S AA
R 0601 VRS-TV1JD222J 2125 2,2KOHM 5% 1/10W SMD S AA
R 0602 VRS-TV1JD471J 2125 470 OHM 5% 1/10W SMD S AA
R 0603 VRD-RA2HD331J RES 330 OHM 5% 1/2W S AA
R 0604 VRD-RA2HD471J RES 470 OHM 5% 1/2W S AA
R 0605 VRD-RA2HD6R8J RES 6,8 OHM 5% 1/2W S AA
R 0606 VRD-RA2HD6R8J RES 6,8 OHM 5% 1/2W S AA
R 0607 RR-XZ0200BMZZ FUS RES 1R0 TAP 5% 1/2W S AB
R 0608 VRD-RA2BE183J RES 18KOHM 5% 1/8W S AA
R 0609 VRD-RA2HD2R2J RES 2.2 OHM 5% 1/2W S AA
R 0610 VRD-RA2HD270J RES 27 OHM 5% 1/2W S AA
R 0611 VRD-RA2HD270J RES 27 OHM 5% 1/2W S AA
R 0612 VRN-VV3AB2R7J MET FILM R 2.7 OHM 5% 1W S AA
R 0613 VRD-RA2BE153J RES 15KOHM 5% 1/8W S AA
R 0614 VRS-TV1JD561J 2125 560 OHM 5% 1/10W SMD S AA
R 0615 RR-XZ0212BMZZ FUS RES 10R TAP 5% 1/2W S AB
R 0616 RR-XZ0242BMZZ FUS RES 3K3 TAP 5% 1/2W S AB
R 0617 VRD-RA2BE102J RES 1KOHM 5% 1/8W S AA
R 0701 VRD-RA2HD474J RES 470KOHM 5% 1/2W S AA
R 0702 VRD-RA2HD474J RES 470KOHM 5% 1/2W S AA
R 0703 VRD-RA2BE220J RES 22 OHM 5% 1/8W S AA
R 0704 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA
R 0705 VRS-TQ2BD331F OX RE 330 OHM 1% 1/8W SMD S AA
!
!
!
!
REF No PARTS DESCRIPTION * CODE
R 0706 VRS-TV1JD681J 2125 680 OHM 5% 1/10W SMD S AA
R 0707 VRC-UA2HG825K SOLID R 8,2MOHM 10% 1/2W S AB
R 0708 VRC-UA2HG825K SOLID R 8,2MOHM 10% 1/2W S AB
R 0710 VRD-RA2HD221J RES 220 OHM 5% 1/2W S AA
R 0711 VRS-TV1JD220J 2125 22 OHM 5% 1/10W SMD S AA
R 0714 VRD-RA2HD821J RES 820 OHM 5% 1/2W S AA
R 0715 VRS-TV1JD100J 2125 10 OHM 5% 1/10W SMD S AA
R 0716 VRD-RA2HD473J RES 47KOHM 5% 1/2W S AA
R 0718 VRD-RA2BE472J RES 4,7KOHM 5% 1/8W S AA
R 0719 VRS-TV1JD272J 2125 2,7KOHM 5% 1/10W SMD S AA
R 0720 VRD-RA2HD561J RES 560 OHM 5% 1/2W S AA
R 0721 VRS-TV1JD220J 2125 22 OHM 5% 1/10W SMD S AA
R 0722 VRS-TV1JD121J 2125 120 OHM 5% 1/10W SMD S AA
R 0723 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 0724 VRS-TV1JD151J 2125 150 OHM 5% 1/10W SMD S AA
R 0725 VRS-TV1JD391J 2125 390 OHM 5% 1/10W SMD S AA
R 0726 VRS-TQ2BD000J 3216 0 OHM 5% 1/8W SMD S AA
R 0801 VRS-TV1JD221J 2125 220 OHM 5% 1/10W SMD S AA
R 0802 VRS-TV1JD221J 2125 220 OHM 5% 1/10W SMD S AA
R 0803 VRS-TV1JD221J 2125 220 OHM 5% 1/10W SMD S AA
R 0804 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 0805 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 0806 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 0807 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 0808 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 0809 VRS-TV1JD473J 2125 47KOHM 5% 1/10W SMD S AA
R 0810 VRS-TV1JD271J 2125 270 OHM 5% 1/10W SMD S AA
R 0811 VRS-TV1JD271J 2125 270 OHM 5% 1/10W SMD S AA
R 0812 VRS-TV1JD271J 2125 270 OHM 5% 1/10W SMD S AA
R 0813 VRS-TV1JD273J 2125 27KOHM 5% 1/10W SMD S AA
R 0814 VRS-TV1JD105J 2125 1MOHM 5% 1/10W SMD S AA
R 0815 VRS-TV1JD223J 2125 22KOHM 5% 1/10W SMD S AA
R 0816 VRD-RA2BE272J RES 2,7KOHM 5% 1/8W S AA
R 0817 VRS-TV1JD222J 2125 2,2KOHM 5% 1/10W SMD S AA
R 0818 VRS-TV1JD153J 2125 15KOHM 5% 1/10W SMD S AA
R 0819 VRD-RA2BE101J RES 100 OHM 5% 1/8W S AA
R 0820 VRD-RA2BE101J RES 100 OHM 5% 1/8W S AA
R 0821 VRS-TV1JD822J 2125 8,2KOHM 5% 1/10W SMD S AA
R 0822 VRS-TV1JD334J 2125 330KOHM 5% 1/10W SMD S AA
R 0823 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 0824 VRS-TV1JD750J 2125 75 OHM 5% 1/10W SMD S AA
R 0825 VRS-TV1JD750J 2125 75 OHM 5% 1/10W SMD S AA
R 0826 VRS-TV1JD750J 2125 75 OHM 5% 1/10W SMD S AA
R 1001 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA
R 1002 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA
R 1003 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA
R 1004 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA
R 1005 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA
R 1006 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA
R 1007 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA
R 1008 VRS-TV1JD332J 2125 3.3KOHM 5% 1/10W SMD S AA
R 1009 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 1010 VRS-TV1JD273J 2125 27KOHM 5% 1/10W SMD S AA
R 1011 VRD-RA2HD472J RES 4.7KOHM 5% 1/2W S AA
R 1012 VRD-RA2HD472J RES 4.7KOHM 5% 1/2W S AA
R 1013 VRD-RA2HD472J RES 4.7KOHM 5% 1/2W S AA
R 1014 VRS-TV1JD223J 2125 22KOHM 5% 1/10W SMD S AA
R 1015 VRS-TV1JD223J 2125 22KOHM 5% 1/10W SMD S AA
R 1016 VRS-TV1JD331J 2125 330 OHM 5% 1/10W SMD S AA
R 1017 VRS-TV1JD271J 2125 270 OHM 5% 1/10W SMD S AA
R 1018 VRS-TV1JD103J 2125 10KOHM 5% 1/10W SMD S AA
R 1019 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 1020 VRS-TV1JD562J 2125 5,6KOHM 5% 1/10W SMD S AA
R 1021 VRS-TV1JD472J 2125 4.7KOHM 5% 1/10W SMD S AA
R 1022 VRS-TV1JD472J 2125 4.7KOHM 5% 1/10W SMD S AA
R 1023 VRS-TV1JD472J 2125 4.7KOHM 5% 1/10W SMD S AA
R 1024 VRS-TV1JD472J 2125 4.7KOHM 5% 1/10W SMD S AA
R 1025 VRS-TV1JD472J 2125 4.7KOHM 5% 1/10W SMD S AA
R 1026 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA
R 1027 VRD-RA2BE101J RES 100 OHM 5% 1/8W S AA
!
!
21
37GQ-20H
1.6
1
1.41.31.21.5
2
REF No PARTS DESCRIPTION * CODE
R 1028 VRD-RA2BE101J RES 100 OHM 5% 1/8W S AA
R 1029 VRD-RA2BE101J RES 100 OHM 5% 1/8W S AA
R 1030 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA
R 1031 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA
R 1032 VRS-TV1JD393J 2125 39KOHM 5% 1/10W SMD S AA
R 1033 VRS-TV1JD472J 2125 4.7KOHM 5% 1/10W SMD S AA
R 1034 VRS-TV1JD154J 2125 150KOHM 5% 1/10W SMD S AA
MISCELLANEOUS PARTS
F 0701 QFS-C3226CEZZ FUSE T3.15AH 250V S AE
F 0701 QFSHD1001BMZZ FUSE HOLD.EYF52BC=PANASON S AA
F 0701 QFSHD1002BMZZ FUSE HOLD.EYF52BC=PANASON S AA
FB 0301 RBLN-0037CEZZ BALUN FBA04HA90088-00 T/Y S AA
FB 0701 RBLN-0020CEZZ BALUNE S AB
FB 0702 RBLN-0037CEZZ BALUN FBA04HA90088-00 T/Y S AA
F 0401 RBLN-0037CEZZ BALUN FBA04HA90088-00 T/Y S AA
(H) QCNW-2834BMZZ WIRE (H) 14" S AD
(K) QCNW-2835BMZZ WIRE (K) 14" S AE
A 0000 QPLGN0304CEZZ PLUG S AB
F 0000 QPLGN0505CEZZ PLUG S AB
G 0000 QPLGN0207CEZZ PLUG S AA
J 0019 VRS-TV1JD332J 2125 3.3KOHM 5% 1/10W SMD S AA
J 0054 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA
J 0056 VRS-TQ2BD000J 3216 0 OHM 5% 1/8W SMD S AA
J 0061 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA
J 0062 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA
J 0067 RC-FZ4105BMNJ POL FILM C 1MF 50V 5% ECQ-V AE
JF 0016 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA
JF 0017 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA
JF 0018 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA
JL 0005 QCNW-3055BMZZ WIRE BETWEEN GNDS CA-1 S AB
RMC0001 RRMCU0222CEZZ R/C RECEIVER S AG
S 0000 QPLGN0241CEZZ PLUG S AA
S 0701 QSW-P0588CEZZ SWITCH ESB91632A-V S AM
S 1001 QSW-K0079GEZZ TACTILE SWITCH S AA
S 1002 QSW-K0079GEZZ TACTILE SWITCH S AA
S 1003 QSW-K0079GEZZ TACTILE SWITCH S AA
S 1004 QSW-K0079GEZZ TACTILE SWITCH S AA
SC 0401 QSOCZ2107BMZZ SOCKET S AE
PWB-B SOCKET UNIT
TRANSISTORS
Q 0870 RH-TX0181BMZZ TRT BF422 TOSHIBA S AB
Q 0871 RH-TX0181BMZZ TRT BF422 TOSHIBA S AB
Q 0872 RH-TX0181BMZZ TRT BF422 TOSHIBA S AB
Q 0883 RH-TX0180BMZZ TRT BF421 TOSHIBA S AB
Q 0885 RH-TX0180BMZZ TRT BF421 TOSHIBA S AB
Q 0887 RH-TX0180BMZZ TRT BF421 TOSHIBA S AB
DIODES
D 0811 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA
D 0812 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA
D 0860 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA
D 0861 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA
D 0862 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA
COILS
L 0861 VP-CF120K0000 PEAK COIL 12UH 10% S AC
CAPACITORS
C 0860 VCCCTV1HH471J CERAM C 470PF 50V 2125SMD S AA
C 0861 VCCCTV1HH471J CERAM C 470PF 50V 2125SMD S AA
C 0862 VCCCTV1HH471J CERAM C 470PF 50V 2125SMD S AA
C 0871 VCCCTV1HH471J CERAM C 470PF 50V 2125SMD S AA
C 0872 VCCCTV1HH471J CERAM C 470PF 50V 2125SMD S AA
C 0873 VCCCTV1HH471J CERAM C 470PF 50V 2125SMD S AA
C 0874 VCKYPA2HB102K CERAM C 1NF 10% 500V S AA
C 0876 VCKYPB3DE472Z C DE1110-1E472Z2K MURATA S AC
!
!
REF No PARTS DESCRIPTION * CODE
C 0878 VCEAGA2DW106M ELEC C 10UF 20% 200V S AC
C 0879 VCCCPA1HH101J C CAPACITOR S AA
RESISTORS
R 0862 VRS-PU3DB153J MET OX RES 15 KOHM 5% 2W S AC
R 0864 VRS-PU3DB153J MET OX RES 15 KOHM 5% 2W S AC
R 0866 VRS-PU3DB153J MET OX RES 15 KOHM 5% 2W S AC
R 0879 VRS-TV1JD471J 2125 470 OHM 5% 1/10W SMD S AA
R 0880 VRS-TV1JD471J 2125 470 OHM 5% 1/10W SMD S AA
R 0881 VRS-TV1JD471J 2125 470 OHM 5% 1/10W SMD S AA
R 0883 VRD-RA2HD272J RES 2,7KOHM 5% 1/2W S AA
R 0885 VRD-RA2HD272J RES 2,7KOHM 5% 1/2W S AA
R 0887 VRD-RA2HD272J RES 2,7KOHM 5% 1/2W S AA
R 0888 VRS-TV1JD471J 2125 470 OHM 5% 1/10W SMD S AA
R 0892 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 0893 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 0894 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA
R 0898 VRS-TV1JD471J 2125 470 OHM 5% 1/10W SMD S AA
R 0899 VRS-TV1JD471J 2125 470 OHM 5% 1/10W SMD S AA
MISCELLANEOUS PARTS
SC 0881 QSOCV0842CEZZ CRT SOCKET S AG
L 0003 QTIPM0017CEFM TIP S AA
MISCELLANEOUS PARTS
CACCB5007BMV0 A.C CORD S AU
VSP0080PBL6YS SPEAKER 2.0W 32 OHM DAIWA S AH
TINS-6825BMN0 OWNERS MANUAL 37GQ20H S AC
TINS-6833BMN0 QUICK GUIDE (ENGLISH) S AA
RRMCG1059BMSA REMOTE CONTROL UNIT S AS
QANTL0001BMZZ LOOP ANTENNA ELDOR S AM
CABINET PARTS
1 CCABA1284BMV0 CABINET SET 37GQ20SDE S AX
1.2 HBDGB1017BMSB SHARP BADGE(37EM-24S) S AC
1.3 HDECQ0036BMSA R/C DECORATION S AB
1.4 HDECQ0035BMSA LED DECORATION S AB
1.5 JBTN-1047BMSA UP/DOWN BUTTON(37EM-24S) S AD
1.6 JBTN-1046BMSA POWER BUTTON(37EM-24S) S AB
2 GCABB1107BMKA REAR CAB. 37GQ-20S S AU
!
!
!
22
37GQ-20H
TROUBLESHOOTING TABLES.
NO PICTURE
NO
Check Q1001, IC1001, IC1003
Check the tuner supply and band biases. Both
must be approx. 5V DC
Normal
YESIs tuning voltage
normal at Pin (2) of Tuner?
Check Picture setting by R/C. Signal
should be received.
-Check the AGC Voltage: Pin (1) of Tuner.-Check the SAW Filter: SF201
23
37GQ-20H
NO SOUND
Check Sound setting byR/C. Signal should be
received.
NO YES
Check D707, C710
NO
IsAudio Amplifier
muted?
Check R304, Q301, Q302
NO
Check IC801, C301
YES
YES
Check IC1001, Q305
Does Sound Signal
appear at Pin(6) of IC801?
Does approx. 20V DC
appear on C710?
24
37GQ-20H
NO RASTER
Check F701 NormalFuse Blown
Normal
Replace Fuse
Fuse Blown again
Check IC701
Normal
Abnormal
Check Q601, C711
Check D708, D717
Normal
Check R705, R706,R715, D706
Normal
Check CRT connectorK1... K5 bias
Normal Abnormal
Check C878 Check IC801Check Q601, C711
Check Voltage on C705(Approx. 325V DC)
Check D701, D702, D703,D704, C705.
Check Voltage on C711(Approx. 105V DC)
Approx. 0V
25
37GQ-20H
NO VERTICAL SCAN
YES NO
Check D709, D710, IC501
DEFECTIVE VERTICAL AMP.
AND VERTICAL LINEARITY
Readjust Vertical Size.
Check D505, D506Check Q505, Q507, Q509
NEITHER VERTICAL NOR
HORIZONTAL SYNCHRONIZATION
Check IC801, C815, C816, R818
Vertical size is abnormal Vertical linearity is abnormal
Is IC501bias normal?
Check R510, Q501,Q502, Q503
26
37GQ-20H
NO SPECIFIC COLOUR
Issome colour
produced in B/W Broadcast reception?
YESNO
Check IC801, C812,C813, R813, X801
Is the white
balance properly adjusted?
YES NO
Readjust The White Balance.
The Picture Colour isBlue or Yellow.
The Picture Colour isgreen or magenta.
The Picture Colour isRed or cyan.
Check Q871, Q883 and their adjacent circuits.
Check Q870, Q885 and their adjacent circuits.
Check Q872, Q887 and their adjacent circuits.
UNLOCKED COLOUR
(NO COLOUR SYNCHRONIZATION)
Check setting of Colour Standard in Service
Mode.
Normal
Check IC801, C812,C813, R813, X801