PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 501 Orchard Road, #10-00, Wheelock Place, Singapore 238880
C PIONEER ELECTRONIC CORPORATION 1998 K-ZZU. OCT. 1998 Printed in Japan
ORDER NO.
CRT2257
HIGH POWER CASSETTE PLAYER WITH RDS TUNER
KEH-3830R X1M/EW
ServiceManual
CONTENTS1. SAFETY INFORMATION............................................22. EXPLODED VIEWS AND PARTS LIST ......................23. SCHEMATIC DIAGRAM.............................................84. PCB CONNECTION DIAGRAM................................225. ELECTRICAL PARTS LIST........................................326. ADJUSTMENT.........................................................39
7. GENERAL INFORMATION.......................................417.1 PARTS ................................................................41
7.1.1 IC ...............................................................417.1.2 DISPLAY ...................................................45
7.2DISASSEMBLY ...................................................467.3BLOCK DIAGRAM ..............................................47
8. OPERATIONS AND SPECIFICATIONS....................48
KEH-3820R X1M/GR
NOTE:
- See the separate manual CX-631(CRT1640) for the cassette mechanism description.
- The cassette mechanism assy employed in this model is one of 2L series.
KEH-3800R X1M/EW
KEH-3830R/X1M/EW
2
KEH-3830R,3800R,3820R
1. SAFETY INFORMATIONThis service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repaircomplex products such as those covered by this manual.Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do soand refer the repair to a qualified service technician.
2. EXPLODED VIEWS AND PARTS LIST2.1 PACKING
10
113
7
11
9
8
12
2
5
4
6
3
3
KEH-3830R,3800R,3820R
1 Cord Assy CDE57972 Accessory Assy CEA19173 Screw CBA13044 Handle CNC53955 Bush CNV3930
* 6 Polyethylene Bag E36-6157 Polyethylene Bag CEG-1628 Carton See Contrast table(2)9 Contain Box See Contrast table(2)
10 Protector CHP2102
11 Protector CHP210112-1 Owner’s Manual See Contrast table(2)12-2 Owner’s Manual See Contrast table(2)12-3 Installation Manual See Contrast table(2)
* 12-4 Passport CRY1013
* 12-5 Warranty Card CRY108713 Case Assy CXB3520
NOTE:- Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List.
- Screws adjacent to ∇ mark on the product are used for disassembly.
(1) PACKING SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
Part No.Mark No. Description KEH-3830R/X1M/EW KEH-3800R/X1M/EW KEH-3820R/X1M/GR
8 Carton CHG3572 CHG3708 CHG35899 Contain Box CHL3572 CHL3708 CHL3589
12-1 Owner’s Manual CRD2791 CRD2791 CRB152112-2 Owner’s Manual CRD2792 CRD2792 Not used12-3 Installation Manual CRD2793 CRD2793 CRB1522
(2) CONTRAST TABLEKEH-3830R/X1M/EW, KEH-3800R/X1M/EW and KEH-3820R/X1M/GR are constructed the same except forthe following:
- Owner's Manual, Installation ManualModel Part No. Language
KEH-3830R/X1M/EW CRD2791 English,Spanish,GermanKEH-3800R/X1M/EW CRD2792 French,Italian,Dutch
CRD2793 English,Spanish,German,French,Italian,Dutch
KEH-3820R/X1M/GR CRB1521,CRB1522 German
5
KEH-3830R,3800R,3820R
1 Screw BSZ26P050FMC2 Screw BSZ30P050FMC3 Cord Assy CDE57974 Fuse(10A) CEK11365 Plug CKM1290
6 Case CNB23507 Screw BSZ30P050FMC8 Screw BSZ30P200FMC9 Holder CNC5704
10 Cushion CNM5210
11 Insulator CNM596312 Tuner Amp Unit See Contrast table(2)13 Screw BSZ26P080FMC14 Screw BSZ26P160FMC15 Cord CDE5752
16 FM/AM Tuner Unit See Contrast table(2)17 Holder CNC655418 Plug(CN603) CKM128819 Connector(CN602) CKS356820 Connector(CN601) CKS3581
21 Antenna Jack(CN402) CKX105622 Panel CNB234423 Holder CNC539924 Holder CNC684525 Holder CNC7996
26 Heat Sink CNR150527 Chassis Unit See Contrast table(2)28 Screw ISS26P055FUC29 Holder Unit CXB268730 Detach Grille Assy See Contrast table(2)
31 Screw BPZ20P060FMC32 Screw BPZ20P100FZK33 Button See Contrast table(2)34 Button(1-6) CAC578535 Button See Contrast table(2)
36 Button See Contrast table(2)37 Button See Contrast table(2)38 Button(Eject) CAC579339 Button(Display) CAC593440 Button See Contrast table(2)
41 Button See Contrast table(2)42 Spring CBH210343 Cover See Contrast table(2)44 Housing CNV552845 Keyboard Unit See Contrast table(2)
46 LCD(LCD1901) CAW154247 Connector(CN1901) CKS358048 Holder CNC798149 Sheet CNM594150 Lighting Conductor CNV5527
51 Connector CNV553152 Grille Unit See Contrast table(2)53 Button CAC483654 Spring CBH183455 Spring CBH1835
56 Spring CBH218257 Bracket CNC613558 Bracket CNC679159 Arm CNV469260 Arm CNV4693
61 Arm CNV472862 Panel Unit CXB302263 Door CAT183564 Spring CBH183865 Screw IMS20P030FZK
66 Case Assy CXB352067 Cassette Mechanism ModuleEXK369568 IC(IC302) TDA738469 Transistor(Q904) 2SD2396
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
6
KEH-3830R,3800R,3820R
2.3 CASSETTE MECHANISM MODULE
(2)CONTRAST TABLE KEH-3830R/X1M/EW , KEH-3800R/X1M/EW and KEH-3820R/X1M/GR have the same construction except for the following:
Part No.Mark No. Description KEH-3830R/X1M/EW KEH-3800R/X1M/EW KEH-3820R/X1M/GR
12 Tuner Amp Unit CWM6251 CWM6251 CWM625016 FM/AM Tuner Unit CWE1466 CWE1466 CWE147027 Chassis Unit CXB3016 CXB3018 CXB301730 Detach Grille Assy CXB3325 CXB3880 CXB332433 Button(Detach) CAC5929 CAC5789 CAC578935 Button(-) CAC5931 CAC5930 CAC5930
36 Button(EQ) CAC6136 CAC6135 CAC613537 Button(+) CAC5797 CAC5783 CAC578340 Button(Cross) CAC5799 CAC5786 CAC578641 Button(A,B) CAC5801 CAC5787 CAC578743 Cover CNS5131 CNS5130 CNS5130
45 Keyboard Unit CWM6262 CWM6465 CWM626152 Grille Unit CXB4067 CXB4070 CXB406862 Panel Unit CXB3022 CXB3021 CXB302163 Door CAT1835 CAT2028 CAT2028
7
KEH-3830R,3800R,3820R
Mark No. Description Part No. Mark No. Description Part No.
1 Screw BSZ20P040FMC2 Washer CBF10373 Washer CBF10384 Washer CBG10035 Deck Unit EWM1021
6 Screw EBA10287 Screw EBA10378 Spring EBH15319 Spring EBH1575
10 Plug(CN251) CKS3540
11 Spring EBH151512 Spring EBH158713 Spring EBH151714 Spring EBH151815 •••••
16 Spring EBH153717 Cord EDD102018 Photo-interrupter(EGN2,3) EGN100619 Photo-interrupter(EGN1) EGN100520 Roller ENR1031
21 Shaft ELA137322 Pinch Roller ENV151823 Arm ENC148924 Arm ENC139725 Guide ENC1481
26 Holder ENC141727 Lever ENC144828 Arm ENC1488
* 29 Motor EXM103130 Belt ENT1027
31 Gear ENV134732 Collar ENV150833 Gear ENV135034 Flywheel ENV150035 Worm Gear ENV1439
36 Worm Wheel ENV144037 Gear ENR102838 Lever ENV144239 •••••40 Gathering PCB ENX1037
41 Gathering PCB ENX104242 Switch(S1) ESG100443 Motor Unit(M2) EXA148544 Chassis Unit EXA151145 Pinch Holder ENV1485
46 Pinch Holder ENV148647 Reel Unit EXA154348 Head Base Unit EXA145749 Lever Unit EXA143850 Gear Unit EXA1574
51 Frame Unit EXA145852 Lever Unit EXA143953 Head Assy(HD1) EXA150654 Motor Unit(M1) EXA149055 Washer HBF-179
56 Screw BMZ20P022FMC57 Spring EBH154558 Washer YE20FUC59 Pinch Holder Unit EXA152960 Pinch Holder Unit EXA1528
- CASSETTE MECHANISM MODULE SECTION PARTS LIST
8
KEH-3830R,3800R,3820R
A
1 2 3 4
B
C
D
1 2 3 4
3. SCHEMATIC DIAGRAM3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS
LIST”.
A-a A-b
A-a A-b
A-b A-a
Large sizeSCH diagram
Guide page
Detailed page
4R7/
16
223(
B)
4R7/16
EWmodel
EW
mo
del
EWmodel
PM4006B
PM2007A
CN251
FM/AM TUNER UNIT
TAPE: -9dBs
FM: -15.5dBsAM: -26dBs
For resistors and capacitors in the circuit diagrams, their resistance values orcapacitance values are expressed in codes:
Ex. *Resistors Code Practical value 123 12k ohms 103 10k ohms
*Capacitors Code Practical value 103 0.01uF 101/10 100uF/10V
B
D
KEYBOARD U
EWmodelEWmodel
DE
CK
UN
IT
C
A-a
A
9
KEH-3830R,3800R,3820R5 6 7 8
A
B
C
D
5 6 7 8
EWmodel
TUNER AMP UNIT
FM: +9.6dBsAM: -0.9dBsTAPE: -4dBs
FM: +35.6dBsAM: +25.1dBsTAPE: +22.0dB
B REMOTE
SYSTEM CONTROLLER
ELECTRONIC VOLUME
POWER AMP
RESET
8V REGULATER
AA
CN1901
UNIT
332/
16
PD4974A
CEK1136
A
A-b
10
KEH-3830R,3800R,3820R
A
1 2 3 4
B
C
D
1 2 3 4
4R7/16
4R7/
16
EW
mo
del
EWmodel
PM
2007
A
FM/A
M T
UN
ER
UN
IT
FM: -
15.5
dB
sA
M: -
26d
Bs
B
EW
mo
del
EW
mo
del
A-a
A-a
A-b
11
KEH-3830R,3800R,3820R5 6 7 8
A
B
C
D
5 6 7 8
223(B) EW
mo
del
PM
4006
B
CN
251
TA
PE
: -9d
Bs
SY
ST
EM
CO
NT
R
For
resi
sto
rs a
nd
cap
acit
ors
in t
he
circ
uit
dia
gra
ms,
th
eir
resi
stan
ce v
alu
es o
rca
pac
itan
ce v
alu
es a
re e
xpre
ssed
in c
od
es:
Ex.
*R
esis
tors
C
od
e
P
ract
ical
val
ue
1
23
12k
oh
ms
1
03
10k
oh
ms
*C
apac
ito
rs
Co
de
P
ract
ical
val
ue
1
03
0.01
uF
1
01/1
0
100u
F/10
V
D
CN
1901
KE
YB
OA
RD
UN
IT
EW
mo
del
EW
mo
del
PD
4974
A
DECK UNIT
C
A-a
A-a
A-b
12
KEH-3830R,3800R,3820R
A
1 2 3 4
B
C
D
1 2 3 4
TU
NE
R A
MP
UN
IT
FM: +
9.6d
Bs
AM
: -0.
9dB
sT
AP
E: -
4dB
s
FM: +
35.6
dB
sA
M: +
25.1
dB
sT
AP
E: +
22.0
dB
ELE
CT
RO
NIC
VO
LUM
E
PO
WE
R A
MP
RE
SE
T
AA
332/16
CE
K11
36
A-a
A-b
A-b
13
KEH-3830R,3800R,3820R5 6 7 8
A
B
C
D
5 6 7 8
EW
mo
del
B R
EM
OT
E
CO
NT
RO
LLE
R
8V R
EG
ULA
TE
R
4A
A-b
A-a
A-b
14
KEH-3830R,3800R,3820R
A
1 2 3 4
B
C
D
1 2 3 4
3.2 FM/AM TUNER UNIT
B
- KEH-3830R/X1M/EW,3800R/X1M/EW
3
1
2
FM/AM TUNER UNB
19
KEH-3830R,3800R,3820R5 6 7 8
A
B
C
D
5 6 7 8
C KEYBOARD UNIT
IL1901-1905:CEL1610(3830R,3820R) CEL1605(3800R)40mA 14V
EDIT
TA
PTY
LOCAL/BSM
C
CN
601
A
20
KEH-3830R,3800R,3820R
A
1 2 3 4
B
C
D
1 2 3 4
3.4 CASSETTE MECHANISM MODULE
D
DECK UNIT
MU
TE
CXA2559Q
11121314151617181920
40393837363534333231
30 29 28 27 26 25 24 23 22 21
1 2 3 4 5 6 7 8 9 10
CN602
R256 220
R287
0R0
C273
22/16
R283 0R0
R284 0R0
R282 0R0
C253 330P
C254 330P
C252 330P
C251 330P
R281 0R0
R255 220
C256
R01
R258
1K
R30
1
18K
R273 1K
R274 1K
R271 1K
R272 1K
R290 0R0
C403 R068
R403 82K
C402
4700P
C401R33
R40216K
R4014R7K
R32
30R
0
R257
1K
C255
R01
C272 R1
C31
310
0P
R38
60R
0
R28
50R
0
HD1HEAD ASSYEXA1506
TEST TAPENCT-150(400Hz, 200nWb/m)
RL
RR
FR
FL
Signal GND
C30
2
R1
C30
2
R1
C30
1
R1
R304R30216K16K
R305
16K
R303
16K
-6dBs(388mV)±1dB
D
A
Fwd-R
Fwd-L
21
KEH-3830R,3800R,3820R5 6 7 8
A
B
C
D
5 6 7 8
FED
PCB UNIT
REEL PCB
SWITCHES:PCB UNIT S1:LOAD SWITCH..........EJECT-PLAY S2:70µs SWITCH............ON-OFFThe underlined indicates the switch position.
R35
11K
R35
21K
R35
31K
R35
41K
R373 0R0
R35
527
0K
C35
239
00P
R36
218
0
C35
1R
22
C35
3R
01
C35
4R
01
R374 0R0
C356 R01
C355 R1D35
21S
S35
5
M1MOTOR UNIT(MAIN MOTOR)EXA1490
S1 LOAD
ESG1004 S2
ESG1004
70µs
MODESENSE
EGN1EGN1005
EGN2EGN1006FWD ENDSENSE
EGN3EGN1006REV ENDSENSE
M2MOTOR UNIT(SUB MOTOR)EXA1485
Power GND
E
F
22
KEH-3830R,3800R,3820R
A
1 2 3 4
B
C
D
1 2 3 4
ACN1901C
CORD ASSY
TUNER AMP UNIT
4. PCB CONNECTION DIAGRAM4.1 TUNER AMP UNIT
NOTE FOR PCB DIAGRAMS1. The parts mounted on this PCB
include all necessary parts forseveral destination.For further information forrespective destinations, be sureto check with the schematicdiagram.
2. Viewpoint of PCB diagrams
CapacitorConnector
P.C.Board Chip Part
SIDE A
SIDE B
A
26
KEH-3830R,3800R,3820R
A
1 2 3 4
B
C
D
1 2 3 4
4.2 FM/AM TUNER UNIT
BSIDE A
B
A
FM/A
M T
UN
ER
UN
IT
KEH-3830R,3800R,3820R
A
1 2 3 4
B
C
D
1 2 3 4
ED
IT
4.3 KEYBOARD UNIT
C
CK
EY
BO
AR
D U
NIT
28
SIDE A
30
KEH-3830R,3800R,3820R
A
1 2 3 4
B
C
D
1 2 3 4
4.4 CASSETTE MECHANISM MODULE
D
D
A
HEADASSY
M2 M1
DECK UNIT
CN602
D DECK UNIT
SIDE A
SIDE B
E
31
KEH-3830R,3800R,3820R1 2 3 4
A
B
C
D
1 2 3 4
Fig. 20
FE
E PCB UNIT
REEL PCB
SIDE A
SIDE B
E
F
LOAD SWS1
70µ SWS2
MODE SENSEEGN1
1
4
7
1 2 3 4 5 6
E PCB UNIT
D CN253
F
32
KEH-3830R,3800R,3820R
5. ELECTRICAL PARTS LISTNOTE:- Parts whose parts numbers are omitted are subject to being not supplied.
- The part numbers shown below indicate chip components.Chip Resistor
RS1/_S___J,RS1/__S___JChip Capacitor (except for CQS.....)
CKS....., CCS....., CSZS.....
D 604 Diode 1SS270D 605 Diode 1SS270D 606 Diode 1SS270D 607 Diode 1SS270D 608 Diode 1SS270
D 901 Diode HZS7L(C2)D 902 Diode 1SR139-400D 903 Diode 1SR139-400D 904 Diode HZS7L(A1)D 905 Diode 1SR139-400
D 906 Diode HZS6L(B2)D 907 Diode HZS9L(B3)D 908 Diode HZS9L(A2)D 909 Diode 1SR139-400D 910 Diode 1SR139-400
D 915 Diode 1SS270D 916 Diode 1SS270X 501 Crystal Resonator 7.200MHz CSS1379X 601 Ceramic Resonator 4.194MHz CSS1047X 701 Crystal Resonator 4.332MHz CSS1056
VR 401 Semi-fixed 22kΩ(B) CCP1321
RESISTORS
R 303 RS1/8S224JR 304 RS1/8S224JR 305 RS1/10S222JR 306 RS1/10S222JR 307 RS1/10S223J
R 308 RS1/10S223JR 309 RS1/10S222JR 311 RD1/4PU472JR 312 RS1/10S472JR 317 RS1/10S152J
R 318 RS1/10S103JR 319 RS1/10S221JR 320 RS1/10S101JR 321 RS1/10S223JR 322 RS1/10S153J
R 323 RS1/10S103JR 340 RS1/10S0R0JR 342 RS1/10S0R0JR 401 RS1/10S0R0JR 402 RS1/10S272J
R 403 RS1/10S272JR 404 RS1/10S0R0JR 405 RS1/10S510JR 406 RS1/10S102JR 407 RD1/4PU222J
R 408 RS1/10S222JR 410 RS1/10S102JR 411 RS1/10S103JR 412 (EWmodel) RD1/4PU103JR 413 RS1/10S393J
Unit Number : CWM6251(EWmodel)CWM6250(GRmodel)
Unit Name : Tuner Amp Unit
MISCELLANEOUS
IC 301 IC PML003AMIC 302 IC TDA7384IC 501 IC PM2007AIC 601 IC PD4974AIC 602 IC S-80734AN
IC 701 IC PM4006BIC 703 IC TA75S393FIC 901 IC TPD1018FL 501 Ferri-Inductor LAU2R2KL 502 Ferri-Inductor LAU2R2K
L 601 Ferri-Inductor LAU2R2KL 602 Ferri-Inductor LAU2R2KL 603 Ferri-Inductor LAU2R2KL 701 Ferri-Inductor LAU101KL 901 Coil CTH1219
L 902 Ferri-Inductor LAU2R2KQ 301 Transistor 2SD1468SQ 302 Transistor 2SD1468SQ 303 Transistor DTC143TSQ 304 Transistor DTC143TS
Q 305 Transistor DTC124ESQ 306 Transistor DTC124EKQ 307 Transistor 2SC1740SQ 401 Transistor 2SC2412KQ 402 Transistor DTC143TS
Q 501 Transistor 2SC1740SQ 505 Transistor DTA124EKQ 506 Transistor DTC114EKQ 601 Transistor 2SA933SQ 901 Transistor 2SC1740S
Q 902 Transistor 2SC2412KQ 903 Transistor 2SD2037Q 904 Transistor 2SD2396Q 905 Transistor 2SB1243Q 906 Transistor 2SC1740S
Q 907 Transistor(EWmodel) 2SA1048Q 908 Transistor(EWmodel) DTC114TKQ 909 Transistor 2SA1674Q 910 Transistor DTC114TKQ 911 Transistor 2SC2412K
Q 920 Transistor DTC114ESQ 921 Transistor DTA124ESQ 924 Transistor 2SA1037KD 301 Diode 1SS270D 302 Diode 1SS270
D 402 Diode(EWmodel) 1SS270D 501 Diode 1SS270D 601 Diode 1SS270D 602 Diode 1SS270D 603 Diode 1SS270
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
A
33
KEH-3830R,3800R,3820R
R 414 RS1/10S104JR 415 RS1/10S123JR 416 RS1/8S104JR 417 RS1/10S0R0JR 418 RS1/10S0R0J
R 419 RS1/10S0R0JR 501 RS1/10S105JR 502 (EWmodel) RS1/10S102JR 503 RS1/10S222JR 506 RS1/10S561J
R 508 RS1/10S224JR 510 RS1/10S0R0JR 511 RS1/10S0R0JR 512 RS1/10S0R0JR 513 RS1/10S272J
R 514 RS1/8S222JR 515 RS1/10S562JR 517 RS1/10S473JR 518 RS1/10S472JR 519 RS1/10S682J
R 520 RS1/10S222JR 521 RS1/10S682JR 522 RS1/10S472JR 523 RS1/10S0R0JR 524 (EWmodel) RS1/10S103J
R 525 (EWmodel) RS1/10S152JR 526 RS1/10S392JR 527 RS1/10S392JR 528 RS1/10S472JR 529 RS1/10S473J
R 530 RS1/10S562JR 531 RS1/10S104JR 532 RS1/10S473JR 535 RD1/4PU102JR 536 RS1/10S473J
R 601 RS1/10S124JR 602 (EWmodel) RS1/10S102JR 603 (GRmodel) RS1/10S102JR 604 RS1/10S473JR 607 RD1/4PU102J
R 610 RS1/10S473JR 611 RS1/10S473JR 612 RS1/10S473JR 613 RS1/10S473JR 614 RS1/8S103J
R 615 RS1/10S392JR 616 RD1/4PU222JR 617 RD1/4PU223JR 618 RD1/4PU222JR 619 RD1/4PU222J
R 621 RS1/10S222JR 622 RS1/10S222JR 623 RD1/4PU222JR 624 RS1/10S222JR 625 RD1/4PU222J
R 626 RD1/4PU222JR 627 RD1/4PU222JR 628 RD1/4PU222JR 629 RD1/4PU681JR 630 RS1/10S681J
R 631 RS1/10S681JR 632 RD1/4PU681JR 633 RD1/4PU681JR 634 RD1/4PU681JR 635 RD1/4PU222J
R 636 RS1/10S472JR 637 RS1/10S103JR 638 RD1/4PU222JR 639 RS1/10S223JR 641 RD1/4PU222J
R 642 RS1/10S473JR 643 RS1/10S472JR 644 RS1/10S472JR 645 RS1/10S472JR 651 RD1/4PU222J
R 653 RS1/8S0R0JR 654 RS1/10S0R0JR 655 RS1/10S473JR 701 RS1/10S562JR 702 RS1/10S222J
R 703 RS1/10S222JR 704 RS1/10S684JR 705 RD1/4PU681JR 706 RS1/10S333JR 708 RD1/4PU102J
R 709 RD1/4PU102JR 710 RS1/10S102JR 711 RD1/4PU102JR 712 RD1/4PU102JR 713 RD1/4PU102J
R 714 RD1/4PU102JR 901 RS1/10S473JR 902 RS1/10S223JR 903 RS1/10S223JR 904 RS1/10S473J
R 905 RD1/4PU102JR 906 RD1/4PU473JR 907 RS1/10S473JR 908 RS1/10S472JR 909 RS1/10S332J
R 910 RD1/4PU101JR 911 RS1/10S122JR 912 RS1/10S103JR 913 RS1/10S103JR 914 RS1/10S102J
R 915 RS1/10S103JR 916 (EWmodel) RS1/10S103JR 917 RS1/10S0R0JR 919 (EWmodel) RS1/10S102JR 920 RS1/10S103J
R 921 RS1/10S152JR 922 RS1/10S102JR 923 RS1/10S103JR 924 RS1/10S223JR 944 RS1/10S152J
R 948 RS1/10S0R0JR 949 RS1/8S0R0JR 951 RS1/10S153JR 952 RS1/10S472JR 953 RS1/10S472J
R 954 RD1/4PU102JR 955 RD1/4PU473J
CAPACITORS
C 301 CKSQYB105K10C 302 CKSQYB105K10C 303 CEJA470M10C 304 CEJA100M16C 308 CKSQYB104K50
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
34
KEH-3830R,3800R,3820R
C 309 CKSQYB224K16C 310 CKSQYB224K16C 311 CKSQYB224K16C 312 CKSQYB224K16C 313 CEJA4R7M35
C 314 CEJA4R7M35C 315 CEJA330M10C 316 CEJA1R0M50C 317 CEJA100M16C 318 CKSYB105K16
C 319 CKSQYB224K16C 320 CKSQYB224K16C 321 CKSQYB224K16C 322 CKSQYB224K16C 323 CKSQYB104K50
C 324 3300µF/16V CCH1169C 331 CKSQYB153K50C 332 CKSQYB153K50C 339 CKSQYB104K50C 340 CKSQYB104K50
C 401 CKSQYB223K25C 402 CKSQYB223K25C 403 CKSQYB223K25C 407 CKSQYB223K50C 408 CCSQSL101J50
C 412 CKSQYB104K50C 413 CKSQYB223K50C 414 (EWmodel) CKSQYB103K50C 415 CKSYB223K50C 501 4.7µF/16V CCH1165
C 502 CKSQYB471K50C 503 CKSQYB223K50C 504 CKSQYB103K50C 505 (EWmodel) CKSQYB103K50C 507 CEJA220M6R3
C 508 CKSQYB102K50C 510 CCSQSL101J50C 511 (EWmodel) CKSQYB103K50C 512 CKSQYB103K50C 513 CKSQYB103K50
C 514 CCSQCH150J50C 515 CKSQYB102K50C 516 CCSQCH150J50C 517 CKSQYB103K50C 518 CKSQYB103K50
C 519 CEJA220M6R3C 520 CKSQYB103K50C 521 CEJA220M6R3C 522 CKSQYB104K50C 523 (EWmodel) CKSQYB332K50
C 524 (EWmodel) CKSQYB103K50C 525 4.7µF/16V(EWmodel) CCH1250C 526 (EWmodel) CEJAR47M50C 527 (EWmodel) CKLSR473K16C 530 CEJA220M10
C 601 CKSQYB473K50C 602 CEJA2R2M50C 603 CKSQYB103K50C 604 CCSQCH101J50C 608 CEJA4R7M35
C 609 CEJA100M16C 610 CEJA220M10C 611 CKSQYB223K50C 703 CKSQYB103K50C 704 CEJA4R7M35
C 705 CKSQYB104K50C 706 CKSQYB222K50C 707 CKSQYB104K50C 708 CKSYB105K16C 709 CKSQYB104K50
C 710 CKSQYB472K50C 711 CEJA4R7M35C 712 CCSQCH100D50C 713 CCSQCH220J50C 714 CCSQCH220J50
C 717 CCSQCH101J50C 901 CEJA101M10C 902 CKSQYB473K50C 903 470µF/16V CCH1183C 904 CKSQYB103K50
C 905 330µF/10V CCH1181C 906 CKSQYB103K50C 907 100µF/16V CCH1179C 908 CKSQYB103K50C 910 CKSQYB472K50
Unit Number : CWM6262(KEH-3830R/X1M/EW)CWM6465(KEH-3800R/X1M/EW)CWM6261(KEH-3820R/X1M/GR)
Unit Name : Keyboard Unit
MISCELLANEOUS
IC 1901 IC PD6278AL 1901 Ferri-Inductor LAU101KD 1901 Chip Diode MA151WKD 1902 Diode MA151WAX 1901 Ceramic Resonator 4.97MHz CSS1422
S 1901 Switch CSG1041S 1902 Switch CSG1111S 1903 Switch CSG1111S 1904 Switch CSG1111S 1905 Switch CSG1111
S 1906 Switch CSG1111S 1907 Switch CSG1111S 1908 Switch CSG1111S 1909 Switch CSG1111S 1910 Switch CSG1111
S 1911 Switch CSG1111S 1912 Switch CSG1111S 1913 Switch CSG1111S 1914 Switch CSG1041S 1915 Switch CSG1041
S 1916 Switch CSG1111S 1917 Switch CSG1111S 1918 Switch CSG1041S 1919 Switch CSG1041S 1920 Switch CSG1111
S 1921 Switch CSG1111S 1922 Switch CSG1110IL 1901 Lamp 40mA 14V CEL1610
(KEH-3830R/X1M/EW,3820R/X1M/GR)IL 1901 Lamp 40mA 14V(3800R/X1M/EW) CEL1605
IL 1902 Lamp 40mA 14V CEL1610(KEH-3830R/X1M/EW,3820R/X1M/GR)
IL 1902 Lamp 40mA 14V(3800R/X1M/EW) CEL1605IL 1903 Lamp 40mA 14V CEL1610
(KEH-3830R/X1M/EW,3820R/X1M/GR)
IL 1903 Lamp 40mA 14V(3800R/X1M/EW) CEL1605IL 1904 Lamp 40mA 14V CEL1610
(KEH-3830R/X1M/EW,3820R/X1M/GR)IL 1904 Lamp 40mA 14V(3800R/X1M/EW) CEL1605IL 1905 Lamp 40mA 14V CEL1610
(KEH-3830R/X1M/EW,3820R/X1M/GR)
IL 1905 Lamp 40mA 14V(3800R/X1M/EW) CEL1605LCD1901 LCD CAW1542
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
C
35
KEH-3830R,3800R,3820R
RESISTORS
R 1901 RS1/10S222JR 1902 RS1/10S222JR 1903 RS1/10S472JR 1908 RS1/10S473JR 1909 RS1/10S473J
R 1910 RS1/10S473JR 1911 RS1/10S473JR 1912 RS1/10S473JR 1913 RS1/10S473JR 1922 RS1/10S473J
CAPACITORS
C 1901 CEAL100M16C 1902 CKSQYB104K16
Unit Number : EWM1021Unit Name : Deck Unit
MISCELLANEOUS
IC 251 IC CXA2559QIC 351 IC PA2020AD 352 Diode 1SS355
RESISTORS
R 255 RS1/16S221JR 256 RS1/16S221JR 257 RS1/16S102JR 258 RS1/16S102JR 271 RS1/16S102J
R 272 RS1/16S102JR 273 RS1/16S102JR 274 RS1/16S102JR 281 RS1/8S0R0JR 282 RS1/8S0R0J
R 283 RS1/8S0R0JR 284 RS1/8S0R0JR 285 RS1/16S0R0JR 286 RS1/16S0R0JR 287 RS1/8S0R0J
R 290 RS1/8S0R0JR 301 RS1/16S183JR 302 RS1/16S163JR 303 RS1/16S163JR 304 RS1/16S163J
R 305 RS1/16S163JR 323 RS1/8S0R0JR 351 RS1/16S102JR 352 RS1/16S102JR 353 RS1/16S102J
R 354 RS1/16S102JR 355 RS1/10S274JR 362 RS1/8S181JR 373 RS1/8S0R0JR 374 RS1/8S0R0J
R 401 RS1/16S472JR 402 RS1/16S163JR 403 RS1/16S823J
CAPACITORS
C 251 CKSRYB331K50C 252 CKSRYB331K50C 253 CKSRYB331K50C 254 CKSRYB331K50C 255 CKSRYB103K25
C 256 CKSRYB103K25C 272 CKSQYB104K16C 273 CEJA220M16C 301 CKSYB104K50C 302 CKSYB104K50
C 313 CCSQCH101K50C 351 CKSYB224K25C 352 CKSQYB392K50C 353 CKSQYB103K50C 354 CKSQYB103K50
C 355 CKSYB104K50C 356 CKSQYB103K50C 401 CKSQYB334K16C 402 CKSQYB472K50C 403 CKSQYB683K16
Unit Number :Unit Name : PCB Unit
S 1 Switch (Load) ESG1004EGN 1 Photo-Interrupter EGN1005
Unit Number :Unit Name : Reel PCB
EGN 2 Photo-Interrupter EGN1006EGN 3 Photo-Interrupter EGN1006
Unit Number : CWE1466(EW model)Unit Name : FM/AM Tuner Unit
MISCELLANEOUS
IC 1 IC PA4023BIC 2 IC PA4024AQ 1 Transistor 2SC2412KQ 2 Transistor DTC124EUQ 3 FET 3SK263
Q 31 Transistor 2SC2412KQ 154 Transistor DTC124EUQ 165 Transistor 2SC2412KQ 201 FET 2SK932Q 202 Transistor 2SC2412K
Q 203 Transistor DTC124EUD 4 Diode 1SV250D 5 Diode KV1410-F1D 7 Diode KV1410-F1D 8 Diode KV1410-F1
D 201 Diode MA157D 202 Diode MA157D 231 Diode SVC253L 2 Coil CTC1133L 3 Inductor LCTB2R2K2125
L 4 Coil CTC1133L 5 Coil CTC1132L 6 Inductor LCTBR15K1608L 51 Ferri-Inductor LAU150KL 201 Ferri-Inductor LAU4R7K
L 202 Ferri-Inductor LAU330KL 203 Inductor CTF1287L 208 Inductor LAU121KL 231 Inductor LCTA3R3J3225T 31 Coil CTE1116
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
DE
F
B
36
KEH-3830R,3800R,3820R
T 51 Coil CTC1136TC 1 Trimmer CCL1046CF 51 Ceramic Filter CTF1442CF 52 Ceramic Filter CTF1442CF 53 Ceramic Filter CTF1442
CF 232 Ceramic Filter CTF1348X 151 Radiator 918.5Hz CSS1365X 231 Crystal Resonator 10.26MHz CSS1111VR 154 Semi-fixed 150kΩ(B) CCP1213AR 1 Capacitor with Discharge Gap DSP-201M
RESISTORS
R 1 RS1/16S0R0JR 4 RS1/16S154JR 5 RS1/16S391JR 6 RS1/16S223JR 7 RS1/16S123J
R 8 RS1/16S332JR 9 RS1/16S473JR 10 RS1/16S223JR 11 RS1/16S124JR 13 RS1/16S563J
R 15 RS1/16S271JR 16 RS1/16S104JR 17 RS1/16S332JR 18 RS1/16S332JR 31 RS1/16S470J
R 32 RS1/16S822JR 33 RS1/16S822JR 34 RS1/16S331JR 35 RS1/16S331JR 51 RS1/16S271J
R 52 RS1/16S560JR 55 RS1/16S102JR 56 RS1/16S823JR 61 RS1/16S392JR 62 RS1/16S393J
R 101 RS1/16S272JR 102 RS1/16S682JR 103 RS1/16S333JR 104 RS1/16S334JR 105 RS1/16S683J
R 107 RS1/16S222JR 151 RS1/16S222JR 152 RS1/16S393JR 154 RS1/16S104JR 155 RS1/16S273J
R 156 RS1/16S243JR 157 RS1/16S203JR 160 RS1/16S222JR 161 RS1/16S563JR 162 RS1/16S105J
R 163 RS1/16S222JR 202 RS1/16S223JR 203 RS1/16S225JR 204 RS1/16S103JR 206 RS1/16S220J
R 207 RS1/16S101JR 208 RS1/16S102JR 209 RS1/16S471JR 214 RS1/16S822JR 215 RS1/16S822J
R 217 RS1/16S102JR 231 RS1/16S272JR 232 RS1/16S473JR 237 RS1/16S103JR 238 RS1/16S104J
R 239 RS1/16S104JR 240 RS1/16S332JR 241 RS1/16S202JR 243 RS1/16S123JR 244 RS1/16S103J
R 247 RS1/16S123J
CAPACITORS
C 1 CCSQCH6R0D50C 2 CCSRCK2R0C50C 4 CCSRCH820J50C 6 CCSRCH820J50C 8 CKSRYB103K25
C 9 CKSQYB104K16C 10 CCSRCKR50C50C 11 CEJA1R0M50C 13 CKSRYB222K50C 14 CCSRCH220J50
C 16 CCSRCH8R0D50C 17 CKSRYB222K50C 18 CKSRYB103K25C 19 CKSRYB222K50C 20 CKSRYB222K50
C 21 CEJA100M16C 22 CCSRTH9R0D50C 23 CCSRTH120J50C 24 CCSRCH471J50C 25 CKSRYB103K25
C 31 CKSRYB103K25C 32 CKSQYB472K50C 33 CCSRCH5R0C50C 34 CKSQYB104K16C 36 CCSRRH201J50
C 51 CKSRYB223K25C 52 CKSRYB103K25C 54 CCSRCH470J50C 55 CKSQYB223K25C 56 CKSQYB104K16
C 57 CKSRYB472K50C 58 CEJA330M10C 59 CKSRYB103K25C 61 CCSRCH270J50C 62 CKSRYB103K25
C 63 CEJAR15M50C 101 CEJANP100M10C 102 CKSRYB182K50C 103 CKSRYB682K25C 104 CEJA2R2M50
C 105 CKSRYB103K25C 106 CCSRCH151J50C 107 CKSRYB103K25C 151 CKSRYB472K50C 152 CKSQYB104K16
C 153 CEJA3R3M50C 154 CKSQYB104K16C 157 CEJA3R3M50C 158 CKSYB474K16C 159 CEJA220M6R3
C 160 CKSQYB104K16C 161 CKSQYB104K16C 162 CEJA3R3M50C 163 CKSRYB102K50C 170 CCSRCH100D50
C 201 CCSRCH471J50C 202 CCSRCH100D50C 203 CKSRYB332K50C 204 CKSQYB473K16C 205 CKSQYB473K16
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
37
KEH-3830R,3800R,3820R
C 206 CKSQYB104K16C 207 CCSRCH560J50C 209 CKSQYB104K16C 211 CCSRCH101J50C 212 CEJA470M6R3
C 213 CKSRYB103K25C 216 CCSRCH101J50C 217 CEJA1R5M50C 219 CCSRCH471J50C 220 CKSRYB103K25
C 230 CKSRYB103K25C 231 CCSRCH330J50C 232 CCSRCH150J50C 233 CKSQYB104K16C 234 CEJA330M10
C 235 CKSRYB332K50C 236 CKSQYB473K16C 237 CCSRCH120J50C 239 CKSRYB472K50C 240 CEJAR47M50
C 241 CKSQYB104K16C 242 CEJAR47M50C 243 CEJAR33M50C 244 CKSQYB473K16C 245 CKSRYB123K25
C 246 CKSQYB473K16C 250 CCSRCH471J50
Unit Number : CWE1470(GR model)Unit Name : FM/AM Tuner Unit
MISCELLANEOUS
IC 1 IC PA4023BIC 2 IC PA4024AQ 1 Transistor 2SC2412KQ 2 Transistor DTC124EUQ 3 FET 3SK263
Q 31 Transistor 2SC2412KQ 154 Transistor DTC124EUQ 165 Transistor 2SC2412KD 4 Diode 1SV250D 5 Diode KV1410-F1
D 7 Diode KV1410-F1D 8 Diode KV1410-F1L 2 Coil CTC1133L 3 Inductor LCTB2R2K2125L 4 Coil CTC1133
L 5 Coil CTC1132L 6 Inductor LCTBR15K1608L 51 Ferri-Inductor LAU150KT 31 Coil CTE1117T 51 Coil CTC1136
TC 1 Trimmer CCL1046CF 51 Ceramic Filter CTF1442CF 52 Ceramic Filter CTF1442CF 53 Ceramic Filter CTF1442X 151 Radiator 918.5Hz CSS1365
X 231 Crystal Resonator 10.26MHz CSS1111VR 154 Semi-fixed 150kΩ(B) CCP1213AR 1 Capacitor with Discharge Gap DSP-201M
RESISTORS
R 1 RS1/16S0R0JR 4 RS1/16S154JR 5 RS1/16S391JR 6 RS1/16S223JR 7 RS1/16S123J
R 8 RS1/16S332JR 9 RS1/16S473JR 10 RS1/16S223JR 11 RS1/16S124JR 13 RS1/16S563J
R 15 RS1/16S271JR 16 RS1/16S104JR 17 RS1/16S332JR 18 RS1/16S332JR 31 RS1/16S470J
R 32 RS1/16S822JR 33 RS1/16S822JR 34 RS1/16S331JR 35 RS1/16S331JR 51 RS1/16S271J
R 52 RS1/16S560JR 55 RS1/16S102JR 56 RS1/16S823JR 61 RS1/16S392JR 62 RS1/16S393J
R 101 RS1/16S272JR 102 RS1/16S682JR 103 RS1/16S333JR 104 RS1/16S334JR 105 RS1/16S683J
R 107 RS1/16S222JR 151 RS1/16S222JR 152 RS1/16S393JR 154 RS1/16S104JR 155 RS1/16S273J
R 156 RS1/16S243JR 157 RS1/16S203JR 160 RS1/16S222JR 161 RS1/16S563JR 162 RS1/16S105J
R 163 RS1/16S222J
CAPACITORS
C 1 CCSQCH6R0D50C 2 CCSRCK2R0C50C 4 CCSRCH820J50C 6 CCSRCH820J50C 8 CKSRYB103K25
C 9 CKSQYB104K16C 10 CCSRCKR50C50C 11 CEJA1R0M50C 13 CKSRYB222K50C 14 CCSRCH220J50
C 16 CCSRCH8R0D50C 17 CKSRYB222K50C 18 CKSRYB103K25C 19 CKSRYB222K50C 20 CKSRYB222K50
C 21 CEJA100M16C 22 CCSRTH9R0D50C 23 CCSRTH120J50C 24 CCSRCH471J50C 25 CKSRYB103K25
C 31 CKSRYB103K25C 32 CKSQYB472K50C 33 CCSRCH5R0C50C 34 CKSQYB104K16C 36 CCSRRH201J50
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
B
C 51 CKSRYB223K25C 52 CKSRYB103K25C 54 CCSRCH470J50C 55 CKSQYB223K25C 56 CKSQYB104K16
C 57 CKSRYB472K50C 58 CEJA330M10C 59 CKSRYB103K25C 61 CCSRCH270J50C 62 CKSRYB103K25
C 63 CEJAR15M50C 101 CEJANP100M10C 102 CKSRYB182K50C 103 CKSRYB682K25C 104 CEJA2R2M50
C 105 CKSRYB103K25C 106 CCSRCH151J50C 107 CKSRYB103K25C 151 CKSRYB472K50C 152 CKSQYB104K16
C 153 CEJA3R3M50C 154 CKSQYB104K16C 157 CEJA3R3M50C 158 CKSYB474K16C 159 CEJA220M6R3
C 160 CKSQYB104K16C 161 CKSQYB104K16C 162 CEJA3R3M50C 163 CKSRYB102K50C 170 CCSRCH100D50
Miscellaneous Parts List
M 1 Motor Unit (Main) EXA1490M 2 Motor Unit (Sub) EXA1485HD 1 Head Assy EXA1506
Fuse(10A) CEK1136
38
KEH-3830R,3800R,3820R
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
39
KEH-3830R,3800R,3820R
FM
/AM
TU
NE
R U
NIT
4Ω
4Ω
Lch +
Lch -
Rch +
Rch -
BACK UP
ACC
GND
+14.4V
GND
AntennaJack
mV Meter (1) Oscilloscope
DC RegulatedPower Supply
TUNER AMP UNIT
50 Ω(75Ω )
FM SSG StereoModulator
50Ω (37.5Ω )Antenna Plug
Dummy Antenna
DE
CK
UN
IT
VR401
DC V Meter(2)
SIDE B
FM/AM TUNER UNIT (TOP VIEW)
T31
T51
C63
T51 CenterMeter
FM/AM TUNER UNIT (BOTTOM VIEW)
Pin1
Pin13
Pin14
Pin 19
Pin26L2
L4
L5
VR154
TC1
DC VMeter(1)
Q402 EMITTER
6. ADJUSTMENT- Connection Diagram
40
KEH-3830R,3800R,3820R
FM ADJUSTMENTModulation M:MONO MOD., 400Hz 30%(22.5kHz Dev.) or 400Hz 100%(75kHz Dev.)
S:STEREO MOD., 1kHz, L or R=30%(20.25kHz+7.5kHz Dev.)NOTE:Before proceeding to further adjustments after switching power ON, let the tuner run for ten minutes to allow
the circuits to stabilize.
FM SSG Displayed Adjustment Adjustment MethodNo. Frequency(MHz) Level(dBf) Frequency(MHz) Point (Switch Position)
TUN Volt 1 ••••• ••••• 108.0 L5 DC V Meter(1) : 6VIF 2 98.1 M 60—100 98.1 T51 Center Meter : 0ANT Coil 3 98.1 M 5 98.1 L2 mV Meter(1) : MaximumRF Coil 4 98.1 M 5 98.1 L4 mV Meter(1) : MaximumRF 5 129.3 M 60—80 107.9 TC1 mV Meter(1) : MinimumTrimmer
6 RF Coil and RF Trimmer shall be adjusted twice or moreIFT 7 98.1 M 5 98.1 T31 mV Meter(1) : Maximum
(STEREO MODE)ARC 8 98.1 S 40 98.1 VR154 mV Meter(1) : Separation 5dB
(STEREO MODE)
RDS SL ADJUSTMENTFM SSG Displayed Adjustment Adjustment Method
No. Frequency(MHz) Level(dBf) Frequency(MHz) Point (Switch Position)1 104.0 S 35 104.0 VR401 DC V Meter(2) : 1.75V+0.05,-0.35
42
KEH-3830R,3800R,3820R
- Pin Functions(PD4974A)Pin No. Pin Name I/O Format Function and Operation
1 ASENBO O C Slave power supply control output2 l/S O C RDS time constant control output3 ADPW O C A/D converter power4 AVSS GND5 swvdd O C Grille power supply control output6 st I FM stereo input7 AVREF1 D/A converter standard voltage8 KYDT I Grille MicroComputer data input9 DPDT O C Grille MicroComputer data output
10 NC Not used11 TUNPDI I PLL IC data input12 TUNPDO O C PLL IC data output13 TUNPCK O C PLL IC clock output14 TUNPCE O C PLL IC chip enable output15 currrq O C Tuner voltage FIX output
16–18 NC Not used19 RECIVE O C During RDS data reception output20 DILM O C DILM output21 EORR O C Correct RDS error output22 VST O C Strobe pulse output for electronic volume23 VCK O C Clock output for electronic volume24 VDT O C Data output for electronic volume25 LCDPW O C LCD back light power supply control output26 ILMPW O C Illumination power supply control output27 DRSENS I Door open/close sense input28 DRSYS O C Door system select output29 FM O C FM power control output30 AM O C AM power control output31 CM O C Cassette mechanism capstan motor control output32 NC Not used33 VSS GND34 SC2 O C Cassette mechanism sub motor control output35 SC1 O C Cassette mechanism sub motor control output36 MSIN I Cassette mechanism MS sense input37 RIMUTE O N RI output port38 mtlsw I Metal sense input39 dled O N Alarm LED output40 n/R O Normal reverse output41 PLAY O C Tape MS filter select output42 loadsw I Tape loading input43 POS I Cassette mechanism position sense input44 RES I Cassette mechanism reverse end sense input45 PEE O C Beep tone output46 NES I Cassette mechanism forward end sense input47 RDS57K I 57kHzBP-OUT sense input48 STBY O C Stand-by output49 SK I SK signal input50 drst O C Decoder reset output51 tmute O C Tuner mute output52 mdsens I Modulation detect input53 SD I SD input 54 mute O C Mute output55 SYSPW O C System power supply control output56 TX O C IP BUS data output57 RX I IP BUS data input58 RDSLK I RDS LK signal input59 RDT I RDS data input60 RESET I Reset input61 ldet I PLL lock sense input
43
KEH-3830R,3800R,3820R
IC's marked by* are MOS type.Be careful in handling them because they are veryliable to be damaged by electrostatic induction.
Pin No. Pin Name I/O Format Function and Operation62 rck I RDS clock input63 dsens I Grille detach sense input64 TELIN I Cellular mute input65 asens I ACC power sense input66 bsens I Back up power sense input67 NC Not used68 VDD VDD69 X2 O Oscillator output70 X1 I Oscillator input71 IC Connect to GND72 XT2 Sub Clock terminal73 TESTIN I Test program mode input74 AVDD A/D converter analog power supply (VDD)75 AVREF0 I A/D converter standard voltage input76 SL I Signal level input77 CL I Synchronizing signal input of display data latch78 NL I Noise level input79 MODELIN I Model select input80 ALMUTE O C Mute output for Detach alarm
801
20
21 40
41
60
61
*PD4974A Format MeaningC C MOSN N Channel open drain
*PD6278A
16
1732
33
48
49 64
1
44
KEH-3830R,3800R,3820R
- Pin Functions (PD6278A)Pin No. Pin Name I/O Function and Operation
1-5 SEG4-0 O LCD segment output6-9 COM3-0 O LCD common output 10 V3 LCD drive power supply
11-14 KS4-1 O Key strobe output15,16 KD1,2 I Key data input (analogue input)
17 REM I Remote control reception18 RXD I System micro computer UART communication data input19 rst I System reset20 TXD O System micro computer UART communication data output21 MODA GND22 X0 Crystal oscillator connection pin23 X1 Crystal oscillator connection pin24 VSS GND
25,26 KD3,4 I Key data input27,28 KS6,5 O Key strobe output29-55 SEG39-13 O LLCD segment output
56 VCC Power supply57-64 SEG12-5 O LCD segment output
1 2 3 4 5 6 7 8 9 10 11 12 13 14
1516171819202122232425262728
Vref IN1_L IN2_L IN3_L IN4+_L AGND Loud- out_L
SVin_L Front- out_L
Rear- out_L
FIE_L DGNDIN4-_L CLK
VCC IN1_R IN2_R IN3_R IN4+_R AGNDLoud- out_R SVin_R
Front- out_R
Rear- out_R FIE_R STBIN4-_R DATA
Isolator circuit
Primary volume
Anti Alias filter
Treble
Anti radiation filter
Middle Bass
Loudness volume
FIE
Fadervolume
Secondary volume
Zero crossdetect circuit
Primary volume
Anti Alias filter
Middle
Treble
Bass
Isolator circuit
Anti radiation filter
Loudness volume
Zero crossdetect circuit
Fadervolume
Secondary volume
FIE
Digital block
Auto-Zero
Auto-Zero
PML003AM
46
KEH-3830R,3800R,3820R
7.2 DISASSEMBLY
- Removing the Tuner Amp Unit(Fig.2)
Removing the two screws.
Removing the three screws.
Removing the screw.
Unbend the tabs at three locationsindicated by arrow until straight.Remove the Tuner Amp Unit.
- Removing the Case(not shown)1.Remove the two screws.2.Remove the Case.
- Removing the Cassette Mechanism Module(not shown)
1.Remove the four screws.2.Disconnect the connector, and then removing the
Cassette Mechanism Module.
- Removing the Panel Unit(Fig.1)
Remove the two screws.
Disengage the stopper at two locationsindicated and remove the Panel Unit.
Fig.1
Fig.2
Panel Unit
Tuner Amp Unit
48
KEH-3830R,3800R,3820R
8. OPERATIONS AND SPECIFICATIONS
+
≠
+
≠
15. Front
16. Rear
+
≠
+
≠
1. This Product
2. Antenna jack
6. To terminal always suppliedwith power regardless ofignition switch position.
4. To electric terminalcontrolled by ignitionswitch (12 V DC) ON/OFF.
11. Blue/white
8. To vehicle (metal) body. 7. Black (ground)
3. Red
5. Yellow
10. Fuse
17. White
18. White/black
19. Gray
20. Gray/black
21. Green
22. Green/black
23. Violet
24. Violet/black
14. Right speaker13. Left speaker
9. Yellow/blackIf you use a cellular telephone, connect it via theAudio Mute lead on the cellular telephone. If not,keep the Audio Mute lead free of any connections.
12. To Auto-antenna relay controlterminal. (Max. 300 mA 12 V DC.)
15. Front
16. Rear
25. With a 2 speaker system, do not connectanything to the speaker leads that are notconnected to speakers.
CAUTION• Cords for this product and those for other products may be
different colors even if they have the same function. Whenconnecting this product to another product, refer to thesupplied Installation manuals of both products and connectcords that have the same function.
26.
49
KEH-3830R,3800R,3820R
Bas
ic O
pera
tion
To L
iste
n to
Mus
icT
he f
ollo
win
g ex
plai
ns th
e in
itial
ope
ratio
ns r
equi
red
befo
re y
ou c
an li
sten
to m
usic
.
Not
e:•
Loa
ding
a c
asse
tte in
this
pro
duct
.
1.Se
lect
the
des
ired
sou
rce
(e.g
. Tun
er).
Eac
h pr
ess
of th
e SO
UR
CE
/OFF
but
ton
sele
cts
the
desi
red
sour
ce in
the
follo
win
g or
der:
Tun
er =
Tape
Not
e:•
The
sou
nd s
ourc
e w
ill n
ot c
hang
e w
hen
a ca
sset
te ta
pe is
not
set
in th
is u
nit.
2.R
aise
or
low
er t
he v
olum
e.
3.Tu
rn t
he s
ourc
e O
FF.
Hol
d fo
r 1
seco
nd o
r m
ore
Eac
h pr
ess
chan
ges
the
Sour
ce ..
.
8.1. OPERATIONS
Key
Fin
der
Hea
d U
nit
5/∞
/2/3
butto
ns
SOU
RC
E/O
FF b
utto
n
+/–
but
ton
AU
DIO
but
ton
Det
ach
butto
n
But
tons
1–6
Cas
sette
doo
rE
JEC
T b
utto
n
LO
CA
L/B
SM b
utto
n
PTY
but
ton
TA/A
F bu
tton
BA
ND
but
ton
RE
G b
utto
n
EQ
but
ton
50
KEH-3830R,3800R,3820R
Bas
ic O
pera
tion
of T
uner
Bas
ic O
pera
tion
Man
ual a
nd S
eek
Tuni
ng
•Y
ou c
an s
elec
t th
e tu
ning
met
hod
by c
hang
ing
the
leng
thof
tim
e yo
u pr
ess
the
2/3
butt
on.
Man
ual T
unin
g (s
tep
by s
tep)
0.5
seco
nds
or le
ss
Seek
Tun
ing
0.5
seco
nds
or m
ore
Not
e:•
If y
ou c
ontin
ue p
ress
ing
the
butto
n fo
r lo
nger
than
0.5
sec
onds
, you
can
ski
pbr
oadc
ast s
tatio
ns. S
eek
Tun
ing
star
ts a
s so
on a
s yo
u st
op p
ress
ing
the
butto
n.
Not
e:•
“”
ster
eo in
dica
tor
light
s w
hen
a st
ereo
sta
tion
is s
elec
ted.
Pres
et T
unin
g
•Y
ou c
an m
emor
ize
broa
dcas
t st
atio
ns in
but
tons
1 th
roug
h 6
for
easy
, one
-tou
ch s
tati
on r
ecal
l.
Pres
et s
tatio
n re
call
2 se
cond
s or
less
Bro
adca
st s
tatio
n pr
eset
mem
ory
2 se
cond
s or
mor
e
Not
e:•
Up
to 1
2 FM
sta
tions
(6
in F
I(F
M1)
and
FII
(FM
2))
and
6M
W/L
W s
tatio
ns c
an b
e st
ored
in m
emor
y.•
You
can
als
o us
e th
e 5
or ∞
butto
ns to
rec
all b
road
cast
stat
ions
mem
oriz
ed in
but
tons
1 th
roug
h 6.
Pres
et N
umbe
r Ind
icat
or
Ban
d FI(F
M1)
=FI
I(F
M2)
=M
W/L
W
Bas
ic O
pera
tion
of C
asse
tte P
laye
r
Dir
ectio
n Ch
ange
Dir
ectio
n In
dica
tor
Ejec
t Not
e:•
The
Tap
e fu
nctio
n ca
n be
turn
ed O
N/O
FF w
ithth
e ca
sset
te ta
pe r
emai
ning
in th
is p
rodu
ct.
Fast
For
war
d/Re
win
d an
d M
usic
Sea
rch
•E
ach
pres
s of
the
3bu
tton
sel
ects
Fas
t fo
rwar
d or
For
war
d-M
usic
Sear
ch.
FF (
Fast
for
war
d) =
F-M
S (F
orw
ard-
Mus
ic S
earc
h) =
Nor
mal
Pla
ybac
k
•E
ach
pres
s of
the
2bu
tton
sel
ects
Rew
ind
or R
ewin
d-M
usic
Sea
rch.
RE
W (
Rew
ind)
=R
-MS
(Rew
ind-
Mus
ic S
earc
h) =
Nor
mal
Pla
ybac
k
Not
e:•
Fast
for
war
d/R
ewin
d an
d M
usic
Sea
rch
can
be c
ance
led
by p
ress
ing
the
BA
ND
butto
n.
Ban
d In
dica
tor
Freq
uenc
y In
dica
tor
Thi
s pr
oduc
t’s A
F fu
nctio
n ca
n be
sw
itche
d O
N a
nd O
FF. A
F sh
ould
be
switc
hed
OFF
for
norm
al tu
ning
ope
ratio
ns.
Cass
ette
Loa
ding
Slo
t
51
KEH-3830R,3800R,3820R
GeneralPower source .......... 14.4 V DC (10.8 – 15.1 V allowable)Grounding system ........................................ Negative typeMax. current consumption ........................................ 8.5 ADimensions
(mounting size) ...... 178 (W) × 50 (H) × 155 (D) mm(front face) .............. 188 (W) × 58 (H) × 19 (D) mm
Weight ...................................................................... 1.2 kg
AmplifierMaximum power output ...................................... 40 W × 4Continuous power output .................................... 22 W × 4
(DIN45324, +B = 14.4 V)Load impedance .......................... 4 Ω (4 – 8 Ω allowable)Equalizer (3 band equalizer)
(Low) .............................................................. ±12 dB(Mid) .............................................................. ±12 dB(High) .............................................................. ±12 dB
Loudness contour(Low) ..................+3.5 dB (100 Hz), +3 dB (10 kHz)(Mid) ..................+10 dB (100 Hz), +6.5 dB (10 kHz)(High) ..................+11 dB (100 Hz), +11 dB (10 kHz)
(volume: –30 dB)
Cassette playerTape ........................ Compact cassette tape (C-30 – C-90)Tape speed ........ 4.76 cm/sec.(+0.14cm/sec.,-0.05cm/sec.)Fast forward/rewinding time .... Approx. 100 sec. for C-60Wow & flutter .......................................... 0.09% (WRMS)Frequency response .......... Metal: 30 – 16,000 Hz (±3 dB)Stereo separation ...................................................... 45 dBSignal-to-noise ratio...................... 61 dB (IEC-A network)
FM tunerFrequency range ...................................... 87.5 – 108 MHzUsable sensitivity
.................. 11 dBf (1.0 µV/75 Ω, mono, S/N: 30 dB)50 dB quieting sensitivity .... 16 dBf (1.7 µV/75 Ω, mono)Signal-to-noise ratio ...................... 70 dB (IEC-A network)Distortion .......................... 0.3% (at 65 dBf, 1 kHz, stereo)Frequency response ...................... 30 – 15,000 Hz (±3 dB)Stereo separation .......................... 40 dB (at 65 dBf, 1 kHz)
MW tuner(EWmodel)Frequency range ...................................... 531 – 1,602 kHzUsable sensitivity .............................. 18 µV (S/N: 20 dB)Selectivity .................................................. 50 dB (±9 kHz)
LW tuner(EWmodel)Frequency range ........................................ 153 – 281 kHzUsable sensitivity .............................. 30 µV (S/N: 20 dB)Selectivity .................................................. 50 dB (±9 kHz)
Note:• Specifications and the design are subject to
possible modification without notice due toimprovements.
8.2. SPECIFICATIONS