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Service Manual
RX300 AUDIO SYSTEM HEAD UNIT

ORDER NO.

CRT2088

VEHICLE LEXUS RX300 LEXUS RX300

DESTINATION U.S.A. , CANADA U.S.A. , CANADA

PRODUCED AFTER February 1998 February 1998

TOYOTA PART No. 86120-48050 86120-48050

ID No. P1714 P1714

PIONEER MODEL No. KEX-M9086ZT/UC KEX-M9086ZT-91/UC

Manufactured for TOYOTA by PIONEER ELECTRONIC CORPORATION

PUB. NO. CRT2088

KEX-M9086ZT ,M9086ZT-91

KEX-M9086ZT/UC, KEX-M9086ZT-91/UC

ID No. P1714

NOTE:
- The KEX-M9086ZT-91/UC is supplementary genuine part for a TOYOTA vehicle, and a Pioneer product for recycling stock. - As for the structure and electrical system, there is no difference between the KEX-M9086ZT/UC and KEX-M9086ZT91/UC. - Supplementally model is identical to the original except for the addition of following items. Description Carton Contain Box Cover Polyethylene Bag Part No. CHA1721 CHD1721 CEG1045 CEG-162

- 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-529 (CRT1507) for the cassette mechanism description. - The cassette mechanism employed in this model is one of 2L mechanism description. - KEX-M9086ZT/UC has adopted AVC-LAN.

CONTENTS
1. 2. 3. 4. 5. 6. SAFETY INFORMATION ............................................3 EXPLODED VIEWS AND PARTS LIST .......................4 SCHEMATIC DIAGRAM .............................................8 PCB CONNECTION DIAGRAM ................................18 ELECTRICAL PARTS LIST ........................................26 ADJUSTMENT..........................................................32 7. GENERAL INFORMATION .......................................35 7.1 IC ........................................................................35 7.2 DIAGNOSIS .......................................................38 7.2.1 DIAGNOSIS MODE .................................38 7.2.2 DISASSEMBLY ........................................42 7.2.3 CONNECTOR FUNCTION DESCRIPTION ..43 7.3 EXPLANATION..................................................44 7.3.1 BLOCK DIAGRAM ...................................44 7.3.2 SYSTEM BLOCK DIAGRAM ...................45 8. OPERATIONS AND SPECIFICATIONS.....................46

2

KEX-M9086ZT ,M9086ZT-91

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 not risk trying to do so and refer the repair to a qualified service technician.

3

KEX-M9086ZT ,M9086ZT-91

2. EXPLODED VIEWS AND PARTS LIST
2.1 EXTERIOR

Fig. 1

4

KEX-M9086ZT ,M9086ZT-91

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.

- EXTERIOR SECTION PARTS LIST

Mark No. Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Screw Screw Case Earth Spacer Insulator Main Unit Transistor(Q813) Screw Connector(CN801) Connector(CN802) Connector(CN702) Antenna Jack(CN501) Antenna Jack(CN502) Holder Holder Tuner Unit Holder Chassis Unit

Part No. BMZ26P050FMC BMZ30P060FMC CNB2187 CNC6739 CNM4305 CNM5314 CWM5423 2SB1185 CBA1393 CKM1222 CKM1238 CKS1730 CKX1057 CKX1058 CNC2218

*

CNC7149 CWE1455 CNC6774 CXB1408 Cassette Mechanism Module EXK3240 IMS30P050FMC CNM5798

21 Screw 22 Nonwoven Fabric

5

KEX-M9086ZT ,M9086ZT-91

2.2 CASSETTE MECHANISM MODULE

Fig. 2

6

KEX-M9086ZT ,M9086ZT-91

- CASSETTE MECHANISM MODULE SECTION PARTS LIST Mark No. Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 Screw Washer Washer Washer Deck Unit Screw(M2×5) Screw(M2×2.5) Spring Spring Cushion Spring Spring Spring Spring Spring Spring Cord Photo-Reflector(EGN2, 3) Photo-Interrupter(EGN1) Roller Shaft Roller Arm Arm Guide Holder Lever Arm Roller Belt Gear Collar Gear Flywheel Worm Gear Worm Wheel Gear Lever Arm Gathering PCB Gathering PCB Switch(S1) Motor Unit(M2) Chassis Unit Pinch Roller Unit Part No. BSZ20P040FMC CBF1037 CBF1038 CBG1003 EWM1008 EBA1028 EBA1037 EBH1531 EBH1589 ENM1034 EBH1515 EBH1587 EBH1517 EBH1547 EBH1519 EBH1537 EDD1015 EGN1004 EGN1005 ENR1031 ELA1362 ELA1348 ENC1416 ENC1397 ENC1398 ENC1417 ENC1449 ENC1401 ENR1027 ENT1027 ENV1347 ENV1508 ENV1350 ENV1410 ENV1439 ENV1440 ENR1028 ENV1455 ENV1445 ENX1029 ENX1041 ESG1004 EXA1485 EXA1494 EXA1472 Mark No. Description 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 Pinch Roller Unit Reel Unit Head Base Unit Lever Unit Gear Unit Frame Unit Lever Unit Head Assy(HD1) Motor Unit(M1) Washer Screw Resistor(R1) Washer Connector(CN251) Connector(CN252) Connector(CN253) ····· Spring Switch(S2) Roller Cover Cover Spring Washer Washer Lever Unit Spring Screw(M2×2) Capacitor(C1) Bracket Part No. EXA1473 EXA1484 EXA1434 EXA1438 EXA1436 EXA1476 EXA1425 EXA1481 EXA1497 HBF-179 BMZ20P022FMC RD1/4HM181J YE20FUC CKS1711 CKS2127 CKS2129 EBH1545 ESG1004 ENR1023 ENC1412 ENC1413 EBH1546 EBE1008 YE15FUC EXA1424 EBL1026 CBA1250 CEA4R7M35LS2 ENC1472 ETH0001 ENM1036

76 Inductor(L1) 77 Cushion

7

1

2

3

4

KEX-M9086ZT ,M9086ZT-91

3. SCHEMATIC DIAGRAM
A

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
A-a A-b

MAIN UNIT

Large size SCH diagram

B

TUNER UNIT

A-a

A-b

Guide page

B
A-a A-b

Detailed page

C

D

8

A
1

2

3

4

5

6

7

8

KEX-M9086ZT ,M9086ZT-91

A

A-b

B

PD4846B

C

C E
REEL PCB

DECK UNIT

D

D

PCB UNIT

Fig. 3

A
5 6 7 8

9

1

2

3

4

KEX-M9086ZT ,M9086ZT-91

A

B

A-a A-b

C

D

10

A-a
1

A

MAIN UNIT

B

TUNER UNIT

2

3

4

5

6

7

8

KEX-M9086ZT ,M9086ZT-91

A-a A-b Fig. 4
5 6 7

A

B

C

D

A-a
8

11

1

2

3

4

KEX-M9086ZT ,M9086ZT-91

A

B

C

D

A-a A-b
12

A-b
1

2

3

4

5

6

7

8

KEX-M9086ZT ,M9086ZT-91

A-a A-b

A

DECK UNIT

C

REEL PCB

E

D

PCB UNIT

B

C

PD4846B

D

Fig. 5

5

6

7

A-b
8

13

1

2

3

4

KEX-M9086ZT ,M9086ZT-91

3.2 TUNER UNIT
A

B

B

C

D

14

B
1

2

3

4

5

6

7

8

KEX-M9086ZT ,M9086ZT-91

A I

A

B

C

D

Fig. 6

5

6

7

B
8

15

1

2

3

4

KEX-M9086ZT ,M9086ZT-91

3.3 CASSETTE MECHANISM MODULE
A

D C

B

C

A CN702

D

16

C
1 2 3 4

5

6

7

8

KEX-M9086ZT ,M9086ZT-91

A

D E

B

E F
C

Fig. 7
D

5

6

7

C D E
8

17

5

6

7

8

KEX-M9086ZT ,M9086ZT-91

SIDE A
A

B

C

C
CN251

D

Fig. 8

5

6

7

A
8

19

1

2

3

4

KEX-M9086ZT ,M9086ZT-91

A
A

MAIN UNIT

B

C

D

20

A
1

2

3

4

5

6

7

8

KEX-M9086ZT ,M9086ZT-91

SIDE B
A

B

C

D

Fig. 9

5

6

7

A
8

21

1

2

3

4

KEX-M9086ZT ,M9086ZT-91

4.2 TUNER UNIT
A

SIDE A

B

C

D

B

TUNER UNIT

A
Fig. 10
22

B
1

2

3

4

1

2

3

4

KEX-M9086ZT ,M9086ZT-91

SIDE B
A

B

C

TUNER UNIT

B

D

Fig. 11

1

2

3

B
4

23

1

2

3

4

KEX-M9086ZT ,M9086ZT-91

4.3 CASSETTE MECHANISM MODULE

B

D

A

C

D

C

DECK UNIT

A
Fig. 12
24

C
1 2 3 4

CN702

1

2

3

4

KEX-M9086ZT ,M9086ZT-91

D

PCB UNIT

SIDE A
A

Fig. 13

D

PCB UNIT

SIDE B

B

C
Fig. 14

E
C

E

REEL PCB

D
Fig. 15

D

1

2

3

D E
4

25

KEX-M9086ZT ,M9086ZT-91

5. 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.....
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------Part No. ------------------------=====Circuit Symbol and No.===Part Name --- ----------------------------------------------VR 156 Semi-fixed 100k(B) Part No. ------------------------CCP1235

B
IC IC Q Q Q Q Q Q Q D D D D D D D D D D D L L L L L L L L L L L L L L L T TC TC TC CF CF CF CF CF CF X X VR VR VR

Unit Number: CWE1455 Unit Name : Tuner Unit

RESISTORS 1 2 1 3 5 31 151 201 202 3 4 5 6 7 8 9 10 201 202 231 1 2 3 4 5 6 51 52 201 202 203 208 209 210 231 31 1 2 3 25 51 52 53 230 232 151 231 101 151 154 IC IC Transistor FET Transistor Transistor Transistor FET Transistor Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Inductor Coil Coil Coil Coil Coil Ferri-Inductor Coil Ferri-Inductor Ferri-Inductor Inductor Inductor Ferri-Inductor Coil Inductor Coil Capacitor Capacitor Capacitor Ceramic Filter Ceramic Filter Ceramic Filter Ceramic Filter Crystal Filter Ceramic Filter Resonator 918.5Hz Crystal Resonator 10.26MHz Semi-fixed 15k(B) Semi-fixed 10k(B) Semi-fixed 150k(B) PA4026A PA4024A 2SC2712 3SK263 2SK1067 2SC2712 DTC144EU 2SK291 2SC2712 1SV251 1SV250 KV1410-F1 MA157 KV1410-F1 KV1410-F1 KV1410-F1 1SV250 MA157 1SV251 SVC253 LCTBR12K2125 CTC1152 CTC1152 CTC1151 CTC1147 CTC1153 LAU150K CTC1136 LAU4R7K LAU330K CTF1371 LAU390K LAU680K CTB1103 LAU3R3J CTE1116 CCL1038 CCL1038 CCL1038 CTF1290 CTF1290 CTF1144 CTF1145 CTF1262 CTF1348 CSS1365 CSS1111 CCP1230 CCP1229 CCP1236 R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 3 4 6 8 9 10 11 12 15 16 17 18 19 21 22 24 25 26 31 32 33 34 35 51 55 56 61 62 103 104 105 107 152 155 157 160 161 162 163 164 165 201 202 203 204 205 206 207 208 214 RS1/16S223J RS1/16S101J RS1/16S101J RS1/16S332J RS1/16S823J RS1/16S223J RS1/16S124J RS1/16S474J RS1/16S161J RS1/16S104J RS1/16S332J RS1/16S332J RS1/16S154J RS1/16S332J RS1/16S510J RS1/16S101J RS1/16S221J RS1/16S102J RS1/16S470J RS1/16S912J RS1/16S912J RS1/16S331J RS1/16S331J RS1/16S331J RS1/16S102J RS1/16S823J RS1/16S392J RS1/16S273J RS1/16S333J RS1/16S334J RS1/16S683J RS1/16S222J RS1/16S393J RS1/16S393J RS1/10S203J RS1/16S222J RS1/16S563J RS1/16S225J RS1/16S222J RS1/16S823J RS1/16S102J RS1/16S103J RS1/16S103J RS1/16S225J RS1/16S472J RS1/16S471J RS1/16S220J RS1/16S101J RS1/16S102J RS1/16S183J

MISCELLANEOUS

26

KEX-M9086ZT ,M9086ZT-91

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------R R R R R R R R R R R R R R R 215 230 231 232 237 238 239 240 241 243 244 246 247 248 250

Part No. ------------------------RS1/16S753J RS1/16S0R0J RS1/16S242J RS1/16S473J RS1/16S103J RS1/16S104J RS1/16S104J RS1/16S103J RS1/16S202J RS1/16S123J RS1/16S103J RS1/16S0R0J RS1/10S303J RS1/16S0R0J RS1/16S0R0J

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C 154 157 158 159 160 161 162 163 165 201 202 203 204 205 206 207 211 212 213 215 216 217 219 220 221 230 231 232 233 234 235 236 237 239 240 241 242 243 244 245 250 Unit Number: EWM1008 Unit Name : Deck Unit

Part No. ------------------------CKSQYB104K16 CEJA3R3M50 CKSYB474K16 CEJA220M6R3 CKSQYB104K16 CKSQYB104K16 CEJA3R3M50 CKSRYB102K50 CCSRCH100D50 CKSRYB103K25 CCSRCH100D50 CKSRYB332K50 CKSQYB473K16 CKSQYB473K16 CKSRYB103K25 CCSRCH120J50 CCSRCH560J50 CEJA101M10 CKSRYB103K25 CCSRCH680J50 CCSRCH101J50 CEJA1R0M50 CKSRYB223K25 CKSRYB103K25 CKSRYB103K25 CKSQYB104K16 CCSRCH330J50 CCSRCH150J50 CKSRYB103K25 CEJA330M10 CKSRYB332K50 CKSQYB473K16 CCSRTH180J50 CKSRYB103K25 CKSYB104K16 CKSQYB104K16 CEJAR47M50 CKSQYB334K16 CKSQYB473K16 CKSQYB103K25 CCSRCJ3R0C50

CAPACITORS C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C 1 2 3 5 6 7 8 9 10 11 12 13 15 17 18 19 20 21 22 23 24 30 31 32 33 34 40 41 51 52 54 55 56 57 58 59 61 62 63 65 101 102 103 104 105 106 107 151 152 153 CCSRCH220J50 CKSRYB222K50 CCSRCH4R0D50 CKSRYB222K50 CKSQYB473K16 CKSQYB473K16 CKSQYB104K16 CKSRYB222K50 CEJA1R0M50 CCSRCH470J50 CCSRCJ3R0C50 CKSRYB222K50 CCSRCJ3R0D50 CCSRCH120J50 CKSRYB103K25 CCSRCH120J50 CKSRYB222K50 CEJA100M16 CCSRRH100D50 CCSRRH150J50 CCSRCH471J50 CCSRRH201J50 CKSRYB103K25 CKSQYB473K16 CCSRCH220J50 CCSRCH4R0D50 CKSRYB222K50 CKSQYB104K16 CKSRYB223K25 CKSRYB103K25 CCSRCH470J50 CKSQYB223K25 CKSQYB104K16 CKSRYB472K50 CEJA330M10 CKSRYB103K25 CCSRCH270J50 CKSRYB103K25 CEJAR22M50 CKSQYB104K16 CEJANP100M10 CKSRYB182K50 CKSQYB682K50 CEJA2R2M50 CKSRYB103K25 CCSRCH151J50 CKSRYB103K25 CKSRYB562K25 CKSQYB104K16 CEJA3R3M50

C
IC IC Q Q Q D VR VR

MISCELLANEOUS 251 351 271 351 352 351 301 302 IC IC Transistor Transistor Transistor Diode Semi-fixed 33k(B) Semi-fixed 33k(B) HA12173-01 PA2020A 2SC4116 2SB1260 2SC4102 MA141K CCP1130 CCP1130

RESISTORS R R R R R R R R R R 255 256 257 258 259 260 261 262 271 272 RS1/16S181J RS1/16S181J RS1/16S183J RS1/16S183J RS1/16S133J RS1/16S133J RS1/16S274J RS1/16S274J RS1/16S183J RS1/8S223J

27

KEX-M9086ZT ,M9086ZT-91

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 273 274 275 276 277 278 281 282 283 284 285 286 287 288 289 290 301 302 303 304 321 322 351 352 353 354 355 356 357 358 359 360 361 373 374 375 401 402 403 404 405

Part No. ------------------------RS1/8S223J RS1/8S103J RS1/16S473J RS1/16S104J RS1/16S224J RS1/16S104J RS1/8S0R0J RS1/8S0R0J RS1/8S0R0J RS1/8S0R0J RS1/16S0R0J RS1/16S0R0J RS1/16S0R0J RS1/16S0R0J RS1/16S0R0J RS1/8S0R0J RS1/16S223J RS1/16S223J RS1/16S561J RS1/16S561J RS1/8S223J RS1/8S223J RS1/16S102J RS1/16S102J RS1/16S102J RS1/16S102J RS1/10S274J RS1/10S202J RS1/10S472J RS1/10S103J RS1/10S103J RS1/10S102J RS1/10S622J RS1/8S0R0J RS1/8S0R0J RS1/8S0R0J RS1/16S273J RS1/16S223J RS1/16S274J RS1/16S823J RS1/16S274J

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------C C C C C C 355 356 401 402 403 404 Unit Number : CWM5423 Unit Name : Main Unit

Part No. ------------------------CKSYB104K50 CKSQYB103K50 CKSRYB182K50 CKSRYB822K25 CKSRYB333K16 CKSRYB471K50

A
IC IC IC IC IC IC IC IC IC Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q D D D D D D D D D D D

MISCELLANEOUS 401 402 403 404 501 503 701 702 801 401 411 412 413 414 415 501 502 503 504 505 507 508 509 801 802 803 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 826 827 401 402 403 404 501 502 503 801 802 803 805 IC IC IC IC IC IC IC IC IC Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Diode Diode Diode Diode Diode Chip Diode Diode Diode Diode Diode Diode NJM2068MD NJM2068MD TC74HC4066AF NJM2068MD LA1061M LC72146M PD4846B S-80736AN-D0 CA0008AM IMD3A DTC343TK DTC343TK DTC343TK DTC343TK DTA114EK IMX1 2SC2712 DTC144EK IMX1 IMH2A 2SK208 2SC2712 DTC144EK 2SC2712 2SA1162 2SC2712 2SC3651 DTA114TK 2SA1162 DTC114EK IMD3A 2SB1132 IMD3A 2SB1132 2SB1185 2SA1162 IMX1 DTC144EK 2SA1255 2SC2712 IMD3A DTA124EK DTC114EK 2SB1132 UDZ10(B) UDZ10(B) UDZ10(B) UDZ10(B) 1SV241 MA151WK MA8027(H) UDZ20(B) UDZ20(B) UDZ7R5(B) UDZ7R5(B)

CAPACITORS C C C C C C C C C C C C C C C C C C C C C C C C C 251 252 253 254 255 256 271 272 301 302 303 304 305 306 307 308 309 310 311 312 322 351 352 353 354 CKSRYB391K50 CKSRYB391K50 CKSRYB391K50 CKSRYB391K50 CKSRYB103K25 CKSRYB103K25 CEV1R0M50 CKSQYB104K16 CKSYB474K16 CKSYB474K16 CKSRYB222K50 CKSRYB222K50 CKSRYB222K50 CKSRYB222K50 CKSRYB222K50 CKSRYB222K50 CKSQYB104K16 CKSQYB104K16 CKSQYB104K16 CKSQYB104K16 CEV100M16 CKSYB224K25 CKSQYB392K50 CKSQYB103K50 CKSQYB103K50

28

KEX-M9086ZT ,M9086ZT-91

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------D D D D D D D L L L L L L L L L L L L L L L L L L X X EF AR AR 806 807 808 809 810 811 812 501 502 503 504 505 506 507 508 509 510 512 513 514 515 516 701 702 801 501 701 801 501 502 Diode Diode Diode Diode Diode Diode Diode Inductor Inductor Inductor Inductor Inductor Inductor Inductor Chip Inductor Chip Inductor Chip Inductor Inductor Coil Inductor Inductor Inductor Inductor Inductor Coil 350µH Crystal Resonator 4.5MHz Ceramic Resonator 6.29MHz EMI Filter Arrester Arrester Tuner Unit RESISTORS R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 431 432 433 434 435 436 437 438 439 440

Part No. ------------------------UDZ5R6(B) UDZ20(B) GP30DL-6372 MA8047(L) MA8082(L) 1SS355 MA8082(H) LCTBR33K3216 LCTBR33K3216 LCTBR33K3216 LCTB4R7K3216 LCTB4R7K3216 LCTB1R0K2125 LCTA561J4532 LCTA2R2J3225 LCTA2R2J3225 LCTA2R2J3225 LCTB2R2K3216 LCTB150K3216 LCTBR33K3216 LCTBR33K3216 LCTBR33K3216 LCTB2R2K3216 LCTB2R2K3216 CTH1092 CSS1011 CSS1310 CCG1006 DSP-201M DSP-201M CWE1455

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 530 531 532 533 534 535 536 537 538 539 540 541 542 543 552 553 554 555 561 562 563 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728

Part No. ------------------------RS1/10S391J RS1/10S471J RS1/10S102J RS1/10S104J RS1/10S101J RS1/10S101J RS1/10S334J RS1/10S224J RS1/10S683J RS1/10S182J RS1/10S103J RS1/10S473J RS1/10S473J RS1/10S104J RS1/10S103J RS1/10S103J RS1/10S393J RS1/10S103J RS1/10S104J RS1/10S272J RS1/10S272J RS1/10S473J RS1/10S103J RS1/10S152J RS1/10S102J RS1/10S102J RS1/10S472J RS1/10S222J RS1/10S103J RS1/10S102J RS1/10S103J RS1/10S103J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S222J RS1/10S103J RS1/10S103J RS1/10S222J RS1/10S222J RS1/10S123J RS1/10S473J RS1/10S332J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S473J RS1/10S473J RS1/10S473J RS1/10S473J RS1/10S473J RS1/10S473J RS1/10S102J RS1/10S102J RS1/10S681J RS1/10S473J

RS1/10S822J RS1/10S822J RS1/10S392J RS1/10S392J RS1/10S682J RS1/10S682J RS1/10S103J RS1/10S103J RS1/10S472J RS1/10S472J RS1/10S472J RS1/10S472J RS1/10S270J RS1/10S270J RS1/10S270J RS1/10S270J RS1/8S270J RS1/8S270J RS1/8S270J RS1/8S270J RS1/10S470J RS1/10S470J RS1/10S470J RS1/10S470J RS1/10S223J RS1/10S681J RS1/10S681J RS1/10S681J RS1/10S681J RS1/10S473J RS1/10S473J RS1/10S473J RS1/10S473J RS1/10S472J RS1/10S102J

29

KEX-M9086ZT ,M9086ZT-91

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 729 730 731 732 736 737 746 748 749 750 752 753 776 803 804 805 806 807 808 809 810 813 815 816 817 818 819 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 846 847 862 863 864 865

Part No. ------------------------RS1/10S222J RS1/10S222J RS1/10S222J RS1/10S0R0J RS1/10S222J RS1/10S473J RS1/10S223J RS1/10S103J RS1/10S473J RS1/10S473J RS1/10S222J RS1/10S473J RS1/10S222J RS1/10S102J RS1/10S102J RS1/10S102J RS1/8S101J RS1/8S101J RS1/10S104J RS1/10S104J RS1/10S104J RS1/10S223J RS1/10S223J RS1/10S103J RS1/10S473J RS1/10S103J RS1/8S472J RS1/10S471J RS1/10S474J RS1/8S4R7J RS1/10S153J RS1/8S221J RS1/10S152J RS1/10S223J RS1/10S223J RS1/10S152J RS1/10S222J RS1/10S152J RS1/10S471J RS1/10S471J RS1/4S1R0J RS1/10S223J RS1/10S103J RS1/10S223J RS1/10S472J RS1/10S472J RS1/4S221J RS1/10S104J RS1/10S473J RS1/10S472J RS1/10S222J RS1/10S223J RS1/10S471J RS1/10S122J RS1/4S680J

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C 411 412 413 414 415 416 417 421 422 423 424 425 426 427 428 431 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 536 537 538 541 542 543 544 546 547 548 549 550 551 555 558 559 560 561 562 563 564 565 566 570 705 4.7µF/16V

Part No. ------------------------CEALNP4R7M16 CEALNP4R7M16 CCSQCH101J50 CCSQCH101J50 CCSQCH101J50 CCSQCH101J50 CKSQYB474K16 CEAL1R0M50 CEAL1R0M50 CEAL1R0M50 CEAL1R0M50 CKSQYB682K50 CKSQYB682K50 CKSQYB682K50 CKSQYB682K50 CEAL220M10 CCSQCH220J50 CCSQCH220J50 CCSQCH150J50 CCSQCH150J50 CKSQYB222K50 CKSQYB103K50 CCSQCH390J50 CEJA100M16 CEAL2R2M50 CKSQYB473K25 CKSQYB103K50 CKSQYB392K50 CKSQYB103K50 CKSQYB103K50 CKSQYB103K50 CEJA100M16 CKSQYB472K50 CKSQYB223K50 CKSQYB333K25 CKSQYB333K25 CEJA100M16 CEJA100M16 CEJA100M16 CEAL2R2M50 CKSQYB102K50 CCSQCH101J50 CKSQYB223K50 CKSQYB473K25 CCSQCH101J50 CKSQYB103K50 CKSQYB103K50 CKSQYB103K50 CKSQYB102K50 CEJA100M16 CKSQYB104K25 CCH1165 CKSQYB103K50 CKSQYB103K50 CEAL2R2M50 CKSQYB103K50 CGCYX103K25 CKSQYB472K50 CCSQCH120J50 CCSQCH120J50 CKSQYB103K50 CKSQYB122K50 CKSQYB122K50 CKSQYB562K50 CKSQYB103K50

CAPACITORS C C C C C C C C C C 401 402 403 404 405 406 407 408 409 410 CEAL2R2M50 CEAL2R2M50 CEAL2R2M50 CEAL2R2M50 CCSQCH331J50 CCSQCH331J50 CCSQCH471J50 CCSQCH471J50 CEALNP4R7M16 CEALNP4R7M16

30

KEX-M9086ZT ,M9086ZT-91

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------C C C C C C C C C C C C C C C C C C C C C C C C C 706 707 711 716 717 719 720 721 722 801 802 803 806 807 808 809 810 811 812 813 814 815 816 817 818

Part No. ------------------------CKSQYB223K50 CEAL101M10 CKSQYB103K50 CKSQYB102K50 CKSQYB223K50 CCSQCH330J50 CKSQYB102K50 CKSQYB102K50 CKSQYB102K50 CKSQYB103K50 CCSQCH221J50 CCSQCH221J50 CKSQYB103K50 CEALR22M50 CCL1040 CKSQYB223K50 CEAL101M10 CCSQCH101J50 CCSQCH471J50 CKSQYB223K50 CEAS102M16 CKSQYB223K50 CKSQYB223K50 CKSQYB223K50 CEJA101M10

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------C C C C C C C 819 820 821 822 823 829 830 Unit Number: Unit Name : PCB Unit 1 1 2 1 1 Inductor Switch(Load) Switch(70µS) Photo-Interrupter 100µF/10V

Part No. ------------------------CKSQYB223K50 CCH1282 CKSQYB103K50 CKSQYB103K50 CEAL101M10 CKSQYB472K50 CKSYB103K50

D
L S S EGN R

0.047F/5.5V

ETH0001 ESG1004 ESG1004 EGN1005 RD1/4HM181J

E
EGN EGN M M HD C

Unit Number: Unit Name : Reel PCB 2 3 Photo-Reflector Photo-Reflector EGN1004 EGN1004

Miscellaneous Parts List 1 2 1 1 Motor Unit(Main) Motor Unit(Sub) Head Assy EXA1497 EXA1485 EXA1481 CEA4R7M35LS2

31

KEX-M9086ZT ,M9086ZT-91

FM ADJUSTMENT
Modulation M:MONO MOD., 400Hz 30%(22.5kHz Dev.) or 400Hz 100%(75kHz Dev.) S1: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 No.
TUN Volt 1 Frequency(MHz)

Displayed Level(dBf) ····· 65-85 5-15 5-15 5-15 5-15 65 40
Frequency(MHz)

Center 1 Meter IFT 1 ANT 1 Trimmer RF Coil 1 RF 1 Trimmer Separation 1 ARC 1
Separation Interstation 1 Noise Search 2

····· 98.1 M 98.1 M 98.1 M 89.9 M 106.1 M 98.1 S 98.1 S 98.1 M 98.1 M

108.0 98.1 98.1 98.1 89.9 106.1 98.1 98.1 98.1 98.1

Adjustment Point L5 L52 T31 TC1,TC2 L6 TC3 VR101 VR154 ­ VR151

Adjustment Method (Switch Position) DC V Meter(1) : 6V Center Meter : 0 mV Meter(1) : Maximum mV Meter(1) : Maximum mV Meter(1) : Maximum mV Meter(1) : Maximum mV Meter(1) : Maximum mV Meter(1) : Separation 5dB mV Meter(1) : AdB mV Meter(1) : A-20dB

65 -

1 Sensitivity 2 3

98.1 M 33 98.1 VR156 DC V Meter(2) : more than 3.5V 98.1 M 32 98.1 VR156 DC V Meter(2) : 0 Repeat steps 1 and 2 until the adjustment standards are satisfied.

DOLBY B/C NR ADJUSTMENT
No. 1 Test Tape NCT-150 (400Hz,200nwb/m) Adjustment Point VR301(Lch),VR302(Rch) Adjustment Method (Switch Position) mV Meter(2) : ­8.24dBs+1.5dB,-0.5dB (DOLBY NR Switch : OFF)

34

KEX-M9086ZT ,M9086ZT-91

7. GENERAL INFORMATION
7.1 IC
PA4026A

LA1061M

35

KEX-M9086ZT ,M9086ZT-91

- Pin Functions (PD4846B) Pin No. Pin Name 1­3 NC 4 AVSS 5,6 NC 7 AVREF1 8 NC 9 SD 10 SYSMT 11 PDI 12 PDO 13 pck 14 PCE 15 FMMUT 16­28 NC 29 MS 30 f/R 31 PLAY 32 mtl 33 VSS 34 b/C 35 NR 36 load 37 POS 38 RES 39 NES 40 SC2 41 SC1 42 CM 43 stby 44­48 NC 49 TAPPW 50 ACCPW 51 NC 52 TUNPW 53,54 NC 55 HDPW 56 IPTX 57 IPRX 58 IPPW 59 AMPMT 60 reset 61 NC 62 asen 63 bsen 64 NC 65 EJECT 66,67 NC 68 VDD 69 X2 70 X1 71 IC 72 NC 73 TEST 74 AVDD 75 NC 76 SL 77­80 NC

I/O

Format

I O I O O O O I O O I O I I I I I O O O O O O O O O I O O I I I I

C C C C C

C C

C

C C C C C C C C C C C

O I

I

I

Function and Operation Not used A/D GND Not used (Connect to VDD) Not used Station detector input System mute output Data input from PLL IC Data output for PLL IC Serial clock output for PLL IC Chip enable output for PLL IC FM mute output Not used MS sense input Cassette mechanism head forward/reverse select output Tape MS filter select output 70µ tape detection input GND Cassette mechanism dolbyNR B/C select input Dolby NR ON/OFF select input Loading detection input Position sense input Cassette mechanism reverse end sense input Cassette mechanism forward end sense input Cassette mechanism sub motor control output Cassette mechanism sub motor control output Cassette mechanism capstan motor control output Stand-by output Not used Tape power ACC power output Not used Tuner power control output Not used Analog switch control output AVC-LAN driver data output AVC-LAN driver data input Power supply control output for IP BUS interface IC Amprifier mute output Reset input Not used ACC sense input +B sense input Not used Eject key input pin Not used Power supply Oscillator output Oscillator input Connect to GND Not used Test terminal input A/D converter analog power supply (VDD) Not used Signal level input Not used

36

KEX-M9086ZT ,M9086ZT-91

*PD4846B
20 21

1
80

Format C

Meaning C MOS

IC's marked by* are MOS type. Be careful in handling them because they are very liable to be damaged by electrostatic induction.
40 41 60 61

S-80736AN-D0

1
OUT

2
VDD

3
VSS

37

KEX-M9086ZT ,M9086ZT-91

38

- Flowchart and Functions

System Check mode
The system runs a self-diagnosis and displays the results (diagnostic codes). ·Max. 6 Diagnostic codes for each physical address (for each connected device) ·Displays the current status (past errors not displayed) 3Go to System Check 4Return to LAN CHECK 6Memory Clear Complete clearing (automatic)

2End Diagnosis

7.2 DIAGNOSIS 7.2.1 DIAGNOSIS MODE

Normal mode
The system displays the physical address of each device connected to AVC-LAN. ·The device's own physical address is included. 4Return to LAN CHECK

1Go to Diagnosis

LAN CHECK mode

Diagnosis Memory Clear
The system clears Diagnosis Memory (the codes). ·After completing clearing, the system goes to LAN CHECK mode.

2End Diagnosis

5Go to Diagnosis Memory

Diagnosis Memory mode
The system displays historical operational errors recorded for each physical address (for each device) during normal operation in the past. ·Max. 6 Diagnostic codes for each physical address (for each connected device)

2End Diagnosis

- Operation Specifications
Integrated Panel (by Sumitomo Electric) Press the CD key three times, while holding down CH1 or CH6. CD key (Press and hold for 1.7 seconds.) ACC OFF/ON CH1 CH8 CH2 CH5 (Press and hold for 1.7 seconds.) TUNE + TUNE -

1Go to Diagnosis

2End Diagnosis

3Go to System Check

4Return to LAN CHECK

5Go to Diagnosis Memory

6Memory Clear

·Page up ·Page down

- Physical Address Assignment
Display 2
AV machine 1DIN -TV EMV Audio H/U M-CD decoder LCD Audio ECU CD-CH commander

2 3 4 5 6 7 8 9 A B C D E F 1 -- 123

1 1
Rear seat Rear control TV SW Integrate 1DIN navigation -d Panel

0

1

3

0

M.DISP computer

Serial No. Physical address Example: 2--190

4

1-3 5-F

The second device connected is an "audio H/U." D E F

1 2 2
TV tuner CD-CH with video

0

1

3

4

5

6

7

8

9

A

B

C

1Device groups

0

Navigation ATIS computer

FM multiple

1-F

1 3 2
CD-CH MD-P MD-CH DAT

0

1

3

4

5

6

7

8

9

A

B

C

D

E
DCC

F

1 : Controllers 2 : Video output devices 3 : Audio output devices 4 : Audio processing devices 5 : Information output devices 6 : Vehicle devices

Radio

Cassette

0

Radio/cas- CD-P sette without CH controller

8

TEL ECU

1-7 9-F

1 4 2
AMP H. W AMP

0

1

3

4

5

6

7

8

9

A

B

C

D

E

F

Equalizer

0

1-F

1 5 2
CD-CH MD-CH

0

1

3

4

5

6

7

8
CD-ROM -CH

9

A
MD-ROM -CH

B

C

D

E

F

0

GPS receiver

ATIS decoder

FM multiplex decoder

1-F

1 6 2 3 4

0

1

5

6

7

8
Body computer

9

A

B

C

D

E

F

0

A/C computer

KEX-M9086ZT ,M9086ZT-91

39

1-F

KEX-M9086ZT ,M9086ZT-91

40 Display 3
Switch error No response to communications

- Assignment of Diagnostic Codes

1 0 4 Serial No. Example: 3­D2 5 6 7 8 9 A B C D E F 1 ­ 12 Diagnostic code

1

2

0
MD, CH

NO ERR Cassette deck error AUDIO ECU error

+B error

Microprocessor error

CD deck MD deck Amplifier EQ error or CD-CH or MD-CH error error error

2
MD, CH

1

ACC error

ROM error

r r
MD, CH

2

MUTE error

RAM error

Communications failure No response to periodical communications

The third content of Diagnosis is "No response to periodical communications."

3

r
MD, CH

NOTES: *1 Instruction to check for an error in periodical communications is interrupted. - Items corresponding each model · KEX-M9086ZT/UC D1, D2, D4, FF, 50

4

AM tuner Cassette error deck EJT failure FM tuner Tape entanerror gled in the cassette deck Dirt in cassette deck head Broken cassette deck belt CD, CH EJT failure Dirt, scar and upsidedown in CD, CH Detected P.U temperature in CD, CH Detected overcurrent in CD, CH

r
MD, CH recording function error

*1

5

TV tuner error

6
CH tray error CH DSP error LCD error Antenna error

7

· KEX-M9086ZT/UC No Diagnostic code assigned 00

8

r
MD, CH

9

CH elevator error CD, CH clamp error

r

A

B

C

Main antenna error Sub antenna error TV antenna error Antenna selector error

D/E
No response to Diagnosis

F

Common Diagnostic code among devices

Diagnostic code specific to a particular device

Diagnostic code for communications

- Go to Diagnosis (Beep and Display)
System Check mode · The system beeps three times when changing to another mode. · The system beeps once every time a physical address is displayed. · When changing to another mode Blinking "SYS" is displayed. · After completing System Check Displays a physical address. ··Identifies the device. Example: H Physical address (1DIN-TV) Distinguishes from LAN-CHECK. Displays a Diagnostic code. ··Identifies the type of error. Example: Serial No. Diagnostic code Displays a physical address. (Same as the left.) Displays a periodical communications number. ··Displays the time when the error occurred. -- 360 Physical address (CD-CH) Example: 1 -- 02 Serial No. Elapsed time (2 minutes) Displays Diagnostic code. (Same as the left.) 1 -- ------ When there is no physical address: Displays a physical address. The next lowest physical address · When there is no Diagnostic code after completion of System Check 00 The system changes as shown above, as this unit does not include System Check. Displays an auxiliary code. (Same as the left.) Displays a physical address. · When there is no Diagnostic data: 00 1 -- d2 · Displays the details of Diagnosis.
(no response to periodical communications)

LAN-CHECK mode · The system beeps three times when changing to another mode. · The system beeps once every time a physical address is displayed. · When changing to another mode Blinking "CODE" is displayed.

Diagnosis Memory mode

Beep

· The system beeps three times when starting up Diagnosis.

Display

· The system displays the physical address of each device connected to AVC-LAN in sequence from the lowest address. -- Physical address (CD commander) 150 1E0

Example:

1

Serial No.

· Then, "Latest periodical communications number" is displayed. ··Elapsed time at the current point is displayed. Example: 1F Elapsed time (31 minutes) · The system displays a number from 00 to FF (increases a digit every minute). · When 256 minutes are reached, the system returns to 00.

Max. 6 for each physical address Displays an auxiliary code ··Identifies the device involved in the error. Example: 1

Serial No.

1DIN-TV has recorded an error indicating there is no response to periodical communications in CD-CH.

KEX-M9086ZT ,M9086ZT-91

41

KEX-M9086ZT ,M9086ZT-91

7.2.2 DISASSEMBLY
- Removing the Case(Fig.18) 1. Remove the three screws. 2. Remove the Case.

Fig. 18

- Removing the Cassette Mechanism Module(not shown) 1. Remove the four screws. 2. Disconnect the connector. 3. Remove the Cassette Mechanism Module. - Removing the Main Unit(Fig.19) 1. Remove the two screws A and the one screw B. 2. Straighten the hooks marked with arrows. While sliding the Main Unit forward, lift it up to remove.

Fig. 19

42

KEX-M9086ZT ,M9086ZT-91

7.2.3 CONNECTOR FUNCTION DESCRIPTION

B

R-

L-

MUTE ATX- ATX+

TX-

TX+

ANT

EJCT

ACC

GND

R+

L+

Fig. 20

43

KEX-M9086ZT ,M9086ZT-91

7.3 EXPLANATION 7.3.1 BLOCK DIAGRAM
A B

C

E

D

Fig. 21

44

KEX-M9086ZT ,M9086ZT-91

7.3.2 SYSTEM BLOCK DIAGRAM

Power Supply(+B, ACC) BUS Signal Audio Signal

KEX-M9086ZT/UC

GM-9086ZT/UC

DISPLAY

HEAD UNIT

POWER AMPLIFIER

INTEGRATED PANEL

DISC PLAYER ASSY
Vehicle CDX-M9086ZT/UC CDX-M9186ZT/UC Fig. 22

45

KEX-M9086ZT ,M9086ZT-91

8. OPERATIONS AND SPECIFICATIONS
8.1 SPECIFICATIONS
General Power source. . . . . . . . . . . . . . . . . . . 13.2 V(10.5V--16.0V allowable) Grounding system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Negative type Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.125 kg (± 0.6 kg) Tape player Tape . . . . . . . . . . . . . . . . . . . . . . . Compact cassette tape (C-30--C-90) Tape speed . . . . . . . . . . . 4.76 cm/sec.(+0.14 cm/sec.,-0.05 cm/sec.) Wow & flutter . . . . . . . . . . . . . . . . . . . . . . . . . . less than 0.2 %(WRMS) Crosstalk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . more than 40 dB Stereo separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . more than 30 dB Signal-to-noise ratio . . . . . . . . . . . . . . . . . . . . . . . . . . more than 45 dB FM tuner Frequency range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87.7 -- 107.9 MHz Usable sensitivity . . . . . . . . . . . . . . . . . . . . . 7 dBµ ± 6dB (S/N: 30 dB) Signal-to-noise ratio . . . . . . . . . . . . . . . . . more than 50 dB (55 dBµ) Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . less than 1.5% Stereo separation . . . . . . . . . . more than 25 dB (1 kHz : 35 ± 10dB) MW tuner Frequency range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530 -- 1,710 kHz Usable sensitivity . . . . . . . . . . . . . . . . . . . . 27 dBµ± 5dB (S/N: 20 dB) Signal-to-noise ratio. . . . . . . . . . . . . . . . . . . more than 44 dB(74dBµ) Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . less than 1.0%

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, 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 1997
K-ZEB. DEC. 1997 Printed in Japan