TOYOTA KEH-M8296 Service Manual

PIONEER 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. 253 Alexandra Road, #04-01, Singapore 159936

C PIONEER CORPORATION 1999

K-ZZD. SEPT. 1999 Printed in Japan

ORDER NO.

CRT2395

MULTI-CD CONTROL AM/FM CASSETTE DECK

KEH-M8296ZT X1N/ES

TOYOTA

- This service manual should be used together with the following manual(s):

Model No. Order No. Mech. Module Remarks KEH-M8276ZT/X1N/ES CRT2132 CX-631 CRT1640 2L Cassette Mech. Module:Circuit Description,

Mech.Description, Disassembly

VEHICLE DESTINATION PRODUCED AFTER TOYOTA PART No. ID No. PIONEER MODEL No. SOLUNA THAILAND October 1999 86120-0A060 P7403 KEH-M8296ZT/X1N/ES

NOTE:

- Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.

"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.

EXPLODED VIEWS AND PARTS LIST

EXTERIOR(Page 4)

- EXTERIOR SECTION PARTS LIST

Part No.

Mark No. Description KEH-M8276ZT/X1N/ES KEH-M8296ZT/X1N/ES

11 Control Unit CWM5224 CWM6554 43 Door CAT1932 CAT2036 50 Grille CNS4378 CNS5376 64 Cassette Mechanism Module EXK3815 EXK3860

KEH-M8296ZT

CASSETTE MECHANISM MODULE

KEH-M8296ZT

1 Screw BSZ20P040FMC 2 Washer CBF1037 3 Washer CBF1038 4 Washer CBG1003 5 Deck Unit EWM1007

6 Screw(M2x5) EBA1028 7 Screw(M2x2.5) EBA1037 8 Spring EBH1531 9 Spring EBH1589

10 Cushion ENM1034

11 Spring EBH1515 12 Spring EBH1587 13 Spring EBH1517 14 Spring EBH1518 15 Spring EBH1519

16 Spring EBH1537 17 Cord EDD1015 18 Photo-interrupter

(EGN2,3) EGN1006

19 Photo-interrupter(EGN1) EGN1005 20 Roller ENR1031

21 Shaft ELA1362 22 Roller ELA1348 23 Arm ENC1490 24 Arm ENC1397 25 Switch(S2)(70µs) ESG1004

26 Holder ENC1516 27 Lever ENC1448 28 Arm ENC1488 29 Roller ENR1027 30 Belt ENT1027

31 Gear ENV1347 32 Collar ENV1508 33 Gear ENV1350 34 Flywheel ENV1500 35 Worm Gear ENV1439

36 Worm Wheel ENV1440 37 Gear ENR1037 38 Lever ENV1533 39 Arm ENV1525 40 Gathering PCB ENX1037

41 Gathering PCB ENX1039 42 Switch(S1)(LOAD) ESG1004 43 Motor Unit(M2)(SUB) EXA1382 44 Chassis Unit EXA1559 45 Pinch Roller Unit EXA1532

46 Pinch Roller Unit EXA1533 47 Reel Unit EXA1560 48 Head Base Unit EXA1434 49 Lever Unit EXA1438 50 Gear Unit EXA1545

51 Frame Unit EXA1476 52 Lever Unit EXA1439 53 Head Assy(HD1) EXA1575 54 Motor Unit(M1)(MAIN) EXA1499 55 Washer HBF-179

56 Screw JGZ20P025FNI 57 Resistor(R1) RD1/4PM181J 58 Washer YE20FUC 59 Connector(CN251) CKS1711 60 Connector(CN252) CKS2127

61 Connector(CN253) CKS2129 62 Roller ENR1023 63 Spring EBH1545

Mark No. Description Part No. Mark No. Description Part No.

- CASSETTE MECHANISM MODULE SECTION PARTS LIST

KEH-M8296ZT

234

HD1 HEAD ASSY EXA1575

SCHEMATIC DIAGRAM

CASSETTE MECHANISM MODULE

DECK UNIT

CN602

KEH-M8296ZT

M2 MOTOR UNIT (SUB MOTOR) EXA1382

EGN2 EGN1006 FWD END SENSE

EGN3 EGN1006 REV END SENSE

EGN1 EGN1005

M1 MOTOR UNIT (MAIN MOTOR) EXA1499

SWITCHES: PCB UNIT

S1:LOAD SWITCH..........EJECT-PLAY

S2:70µS SWITCH...........ON-OFF

The underlined indicates the switch position.

PCB UNIT

REEL PCB

KEH-M8296ZT

234

DECK UNIT

PCB UNIT

REEL PCB

PCB UNIT

CN602

SIDE A SIDE B

KEH-M8296ZT

ELECTRICAL PARTS LIST

NOTE:

- 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___J

Chip Capacitor (except for CQS.....)

CKS....., CCS....., CSZS.....

R 402 RS1/16S223J R 403 RS1/16S274J R 404 RS1/16S823J R 405 RS1/16S274J

CAPACITORS

C 251 CKSRYB391K50 C 252 CKSRYB391K50 C 253 CKSRYB391K50 C 254 CKSRYB391K50 C 255 CKSRYB103K25

C 256 CKSRYB103K25 C 271 CEV1R0M50 C 272 CKSQYB104K16 C 301 CKSYB474K16 C 302 CKSYB474K16

C 309 CKSQYB104K16 C 310 CKSQYB104K16 C 351 CKSYB224K25 C 352 CKSQYB392K50 C 353 CKSQYB103K50

C 354 CKSQYB103K50 C 355 CKSYB104K50 C 356 CKSQYB103K50 C 401 CKSRYB182K50 C 402 CKSRYB822K50

C 403 CKSRYB333K16 C 404 CKSRYB471K50

Unit Number : Unit Name : PCB Unit

S 1 Switch(LOAD) ESG1004 S 2 Switch(70µS) ESG1004 EGN 1 Photo-Interrupter EGN1005 R 1 RD1/4PM181J

Unit Number : Unit Name : Reel PCB

EGN 2 Photo-Interrupter EGN1006 EGN 3 Photo-Interrupter EGN1006

Miscellaneous Parts List

HD 1 Head Assy EXA1575 M 1 Motor Unit(MAIN) EXA1499 M 2 Motor Unit(SUB) EXA1382

Unit Number : EWM1007 Unit Name : Deck Unit

MISCELLANEOUS

IC 251 IC HA12163 IC 351 IC PA2020A Q 271 Transistor 2SC4116 Q 351 Transistor 2SB1260 Q 352 Transistor 2SC4102

D 351 Diode MA141K VR 301 Semi-fixed 33kΩ(B) CCP1130 VR 302 Semi-fixed 33kΩ(B) CCP1130

RESISTORS

R 255 RS1/16S181J R 256 RS1/16S181J R 257 RS1/16S183J R 258 RS1/16S183J R 259 RS1/16S133J

R 260 RS1/16S133J R 261 RS1/16S274J R 262 RS1/16S274J R 271 RS1/16S183J R 272 RS1/8S223J

R 273 RS1/8S223J R 274 RS1/8S103J R 275 RS1/16S473J R 276 RS1/16S104J R 277 RS1/16S224J

R 278 RS1/16S104J R 281 RS1/8S0R0J R 282 RS1/8S0R0J R 283 RS1/8S0R0J R 284 RS1/8S0R0J

R 285 RS1/16S0R0J R 286 RS1/16S0R0J R 288 RS1/16S0R0J R 289 RS1/16S0R0J R 322 RS1/8S223J

R 351 RS1/16S102J R 352 RS1/16S102J R 353 RS1/16S102J R 354 RS1/16S102J R 355 RS1/10S274J

R 356 RS1/10S202J R 357 RS1/10S472J R 358 RS1/10S103J R 359 RS1/10S103J R 360 RS1/10S102J

R 361 RS1/10S622J R 373 RS1/8S0R0J R 374 RS1/8S0R0J R 375 RS1/8S0R0J R 401 RS1/16S273J

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

Unit Number : Unit Name : Control Unit

Part No.

KEH-M8276ZT KEH-M8296ZT

/X1N/ES /X1N/ES Symbol and Description CWM5224 CWM6554 IC 601 IC PD4806C PE5033A R 3 RS1/10S101J RS1/10S562J R 4 RS1/10S101J RS1/10S562J R 7 RS1/10S103J RS1/10S472J R 8 RS1/10S103J RS1/10S472J

R 33 RS1/10S683J RS1/10S753J R 34 RS1/10S683J RS1/10S753J R 35 RS1/10S132J RS1/10S122J R 39 RS1/10S683J RS1/10S753J R 40 RS1/10S683J RS1/10S753J

R 42 RS1/10S132J RS1/10S122J R 47 RS1/10S683J RS1/10S753J R 48 RS1/10S683J RS1/10S753J R 49 RS1/10S132J RS1/10S122J R 50 RS1/10S132J RS1/10S122J

R 53 RS1/10S821J RS1/10S221J R 58 RS1/10S821J RS1/10S221J R 61 RS1/10S242J RS1/10S822J R 70 RS1/10S242J RS1/10S822J R 81 RS1/10S472J RS1/10S432J

R 82 RS1/10S472J RS1/10S432J R 711 RS1/10S271J RS1/10S331J R 712 RS1/10S271J RS1/10S331J R 801 RS1/10S472J RS1/10S512J R 802 RS1/10S472J RS1/10S512J

R 803 RS1/10S472J RS1/10S512J R 804 RS1/10S472J RS1/10S512J R 805 RS1/10S472J RS1/10S512J R 806 RS1/10S472J RS1/10S512J R 807 RS1/10S472J RS1/10S512J

R 808 RS1/10S472J RS1/10S512J R 831 RS1/10S474J RS1/10S684J R 832 RS1/10S474J RS1/10S684J C 1 CEJAR15M50 CEJAR22M50 C 2 CEJAR15M50 CEJAR22M50

C 3 CEJAR33M50 CEJA1R0M50 C 4 CEJAR33M50 CEJA1R0M50 C 17 CKSYB684K16 CKSYB564K16 C 18 CKSQYB683K25 CKSQYB184K16 C 19 CKSYB124K16 CKSYB154K16

C 20 CKSQYB823K25 CKSQYB563K25 C 21 CKSQYB683K25 CKSQYB184K16 C 22 CKSYB684K16 CKSYB564K16 C 23 CKSQYB823K25 CKSQYB563K25 C 24 CKSYB124K16 CKSYB154K16

C 25 CKSQYB153K25 CKSQYB223K25 C 26 CKSQYB153K25 CKSQYB223K25 C 27 CKSQYB473K25 CKSQYB273K25 C 28 CKSQYB473K25 CKSQYB273K25 C 33 CKSYB684K16 CKSYB274K16

C 34 CKSYB684K16 CKSYB274K16 C 35 CKSYB124K16 CKSYB184K16 C 36 CKSYB124K16 CKSYB184K16 C 601 CCSQCH330J50 CCSQCH270J50 C 602 CCSQCH330J50 CCSQCH270J50

KEH-M8296ZT

DOLBY B NR ADJUSTMENT

No. Test Tape Adjustment Point Adjustment Method

(Switch Position)

1 NCT-150 VR301(Lch),VR302(Rch) mV Meter(2) : –6dBm±1.0dB

(400Hz,200nwb/m) (DOLBY NR Switch : OFF)

VR302

mV Meter(2)

VR301

L-CH

R-CH

Pin2

Pin3

CN251

DECK UNIT(BOTTOM VIEW)

ADJUSTMENT

SPECIFICATIONS

General

Power source...............................................13.2V±0.2V DC

Grounding system........................................Negative type

Dimensions...............................180(W)

x50(H)x163(D)mm

Weight......................................................................1.240kg

Amplifier

Maximum power output ...............................20W or more

Tone controls(bass) ........................................±8dB(100Hz)

(treble) ......................................±9dB(10kHz)

Loudness Contour ............2.5±3dB(100Hz), 5±3dB(10kHz)

Tape

Tape ................................Compact cassette tape(C30-C90)

Tape speed ......4.76 cm/sec.(+0.14 cm/sec.,-0.05 cm/sec.)

Crosstalk........................................................40dB or more

Separation.....................................................35dB or more

S/N .................................................................40dB or more

Distortion.............................................................3% or less

FM tuner

Frequency...................................................87.5–108.0 MHz

S/N .................................................................50dB or more

Distortion..........................................................2.0% or less

IF interference ...............................................84dB or more

Image interference........................................46dB or more

AM tuner

Frequency ......................................................531–1602 kHz

Selectivity .........................................55dB or more(±9kHz)

S/N .................................................................40dB or more

Distortion..........................................................2.0% or less

IF interference ...............................................50dB or more

Image interference........................................50dB or more

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan

C PIONEER ELECTRONIC CORPORATION 1997

K-ZEM. NOV. 1997 Printed in Japan

ORDER NO.

CRT2132

MULTI-CD CONTROL AM/FM CASSETTE DECK

vic

KEH-M8276ZT X1N/ES

TOYOTA

CONTENTS

1. SAFETY INFORMATION ............................................3

2. EXPLODED VIEWS AND PARTS LIST.......................4

3. SCHEMATIC DIAGRAM .............................................8

4. PCB CONNECTION DIAGRAM ................................18

5. ELECTRICAL PARTS LIST ........................................28

6. ADJUSTMENT..........................................................35

7. GENERAL INFORMATION .......................................37

7.1 PARTS .................................................................37

7.1.1 IC ................................................................37

7.1.2 DISPLAY.....................................................41

7.2 DIAGNOSIS ........................................................42

7.2.1 SELF-DIAGNOSTIC FUNCTION...............42

7.2.2 DISASSEMBLY .........................................46

7.2.3 CONNECTOR FUNCTION DESCRIPTION ..47

7.2.4 TEST MODE...............................................48

7.3 EXPLANATION...................................................50

7.3.1 BLOCK DIAGRAM.....................................50

7.3.2 SYSTEM BLOCK DIAGRAM.....................52

8. OPERATIONS AND SPECIFICATIONS.....................53

NOTE:

- Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.

"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.

- See the separate manual CX-631(CRT1640) for the cassette mechanism description.

- The cassette mechanism module employed in this model is one of 2L series.

VEHICLE DESTINATION PRODUCED AFTER TOYOTA PART No. ID No. PIONEER MODEL No. COROLLA THAILAND OCTOBER 1997 86120-YZB13 T7402 KEH-M8276ZT/X1N/ES

KEH-M8276ZT

1. SAFETY INFORMATION

This 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 repair complex 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 mot risk trying to do so and refer the repair to a qualified service technician.

KEH-M8276ZT

2. EXPLODED VIEWS AND PARTS LIST

2.1 EXTERIOR

Fig. 1

KEH-M8276ZT

1 Screw BMZ26P050FMC 2 Screw BMZ26P150FMC 3 Screw BMZ30P050FMC 4 Screw BMZ30P080FZK 5 Case CNB2149

6 Earth Board CNC7121 7 Insulator CNM5187

* 8 Cushion CNM5281

9 Insulator CNM5476

10 Heat Sink CNR1445

11 Control Unit CWM5224 12 Screw BMZ30P050FMC 13 Screw CBA1339 14 Plug(CN101) CKM1221 15 Connector(CN602) CKS1730

16 Connector(CN104) CKS2516 17 Connector(CN103) CKS2518 18 Plug(CN102) CKS3535 19 Antenna Jack(ANT551) CKX1006 20 Holder CNC5399

* 21 Holder CNC6066

22 Holder CNC6211 23 Tuner Unit CWE1426 24 Holder CNC6122 25 Amp Unit CWM5425

26 Connector(CN802) CKM1117 27 Connector(CN801) CKM1118 28 Connector(CN804) CKS2526 29 Connector(CN803) CKS2528 30 Holder CNC5767

31 Bracket CNC6957 32 Screw BPZ20P080FMC 33 Button( ) CAC5022 34 Button(SCAN) CAC5039 35 Button(MUTE) CAC5040

36 Button( , ) CAC5041 37 Button(MODE) CAC5042 38 Button(TUNE,TRACK) CAC5043 39 Button(CD,AM/FM,TAPE) CAC5044 40 Button(1,4) CAC5045

41 Button(2,5) CAC5046 42 Button(3,6) CAC5047 43 Door CAT1932 44 Spring CBH1712 45 Earth Board CNC6960

46 Double Faced Tape CNM5190 47 Cushion CNM5264 48 Cushion CNM5265 49 Plate CNS4377 50 Grille CNS4378

51 Lighting Conductor CNV4851 52 Lighting Conductor CNV5212 53 Keyboard Unit CWM5225 54 LCD(LCD901) CAW1415 55 Socket(CN902) CKS3548

56 Holder CNC7090 57 Insulator CNM5295 58 Plate CNM5672 59 Holder CNV4926 60 Lighting Conductor CNV4927

61 Knob Unit CXB1074 62 Spring CBL-108 63 Chassis Unit CXB1073 64

Cassette Mechanism Module EXK3315

65 Screw IMS30P050FMC

66 IC(IC451) PA2024A 67 IC(IC801) TDA7385

- EXTERIOR SECTION PARTS LIST

Mark No. Description Part No.

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.

KEH-M8276ZT

2.2 CASSETTE MECHANISM MODULE

Fig. 2

KEH-M8276ZT

1 Screw BSZ20P040FMC 2 Washer CBF1037 3 Washer CBF1038 4 Washer CBG1003 5 Deck Unit CWM1007

6 Screw EBA1028 7 Screw EBA1037 8 Spring EBH1531 9 Spring EBH1575

10 Cushion EWM1034

11 Spring EBH1515 12 Spring EBH1587 13 Spring EBH1517 14 Spring EBH1518 15 Spring EBH1519

16 Spring EBH1537 17 Cord EDD1015 18 Photo-interrupter

(EGN2,3) EGN1006

19 Photo-interrupter(EGN1) EGN1005 20 Roller ENR1031

21 Shaft ELA1373 22 Pinch Roller ENV1518 23 Arm ENC1396 24 Arm ENC1397 25 Guide ENC1398

26 Holder ENC1417 27 Lever ENC1448 28 Arm ENC1401 29 Motor EXM1027 30 Belt ENT1027

31 Gear ENV1347 32 Collar ENV1508 33 Gear ENV1350 34 Flywheel ENV1410 35 Worm Gear ENV1439

36 Worm Wheel ENV1440 37 Gear ENR1028 38 Lever ENV1442 39 Arm ENV1445 40 Gathering PCB ENX1037

41 Gathering PCB ENX1038 42 Switch(S1,S2) ESG1004 43 Motor Unit(M2) EXA1485 44 Chassis Unit EXA1511 45 Pinch Holder ENV1485

46 Pinch Holder ENV1486 47 Reel Unit EXA1456 48 Head Base Unit EXA1457 49 Lever Unit EXA1438 50 Gear Unit EXA1436

51 Frame Unit EXA1458 52 Lever Unit EXA1439 53 Head Assy(HD1) EXA1452 54 Motor Unit(M1) EXA1454 55 Washer HBF-179

56 Screw BMZ20P022FMC 57 Spring EBH1545 58 Washer YE20FUC 59 Pinch Holder Unit EXA1529 60 Pinch Holder Unit EXA1528

61 Resistor(R1) RD1/4HM181J 62 Connector(CN253) CKS2129 63 Connector(CN251) CKS1711 64 Connector(CN252) CKS2127 65 Spare Unit CXA3028

Mark No. Description Part No. Mark No. Description Part No.

- CASSETTE MECHANISM MODULE SECTION PARTS LIST

KEH-M8276ZT

234

3. SCHEMATIC DIAGRAM

3.1 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-a

Large size

SCH diagram

Guide page

Detailed page

A-a

E F G

KEH-M8276ZT

A-b

Fig. 3

KEH-M8276ZT

234

A-a

A-b

+ 44 hidden pages