order no. crt2257 keh-3830r high power...

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

4

KEH-3830R,3800R,3820R

2.2 EXTERIOR

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


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


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

15

KEH-3830R,3800R,3820R5 6 7 8

A

B

C

D

5 6 7 8

B

ER UNIT

A

16

KEH-3830R,3800R,3820R

A

1 2 3 4

B

C

D

1 2 3 4

B

- KEH-3820R/X1M/GR

FM/AM TUNER UNB

17

KEH-3830R,3800R,3820R5 6 7 8

A

B

C

D

5 6 7 8

B

ER UNIT

A

18

KEH-3830R,3800R,3820R

A

1 2 3 4

B

C

D

1 2 3 4

CAW1542

3.3 KEYBOARD UNIT

C

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


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

23

KEH-3830R,3800R,3820R5 6 7 8

A

B

C

D

5 6 7 8

A

SIDE A

B

CN251D

24

KEH-3830R,3800R,3820R

A

1 2 3 4

B

C

D

1 2 3 4

A

A TUNER AMP UNIT

25

KEH-3830R,3800R,3820R5 6 7 8

A

B

C

D

5 6 7 8

A

SIDE B

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

27

KEH-3830R,3800R,3820R1 2 3 4

A

B

C

D

1 2 3 4

B

SIDE B

B

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

29

KEH-3830R,3800R,3820R1 2 3 4

A

B

C

D

1 2 3 4

C

CK

EY

BO

AR

D U

NIT

CN

601

A

SIDE B

30

KEH-3830R,3800R,3820R

A

1 2 3 4

B

C

D

1 2 3 4


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 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.--- ------ ------------------------------------------ -------------------------


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 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 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 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 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 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



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 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



C

35

KEH-3830R,3800R,3820R

RESISTORS



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 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 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



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 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



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 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



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


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

41

KEH-3830R,3800R,3820R

7. GENERAL INFORMATION7.1 PARTS7.1.1 ICCXA2559Q

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

45

KEH-3830R,3800R,3820R

7.1.2 DISPLAY

- CAW1542

CO

MM

ON

SE

GM

EN

T

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

47

KEH-3830R,3800R,3820R

7.3 BLOCK DIAGRAM- KEH-3830R/X1M/EW

BA

D

F

E

C

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

order no. crt2257 keh-3830r high power...

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