Toyota CRT2242 User manual

ORDER NO.
CRT2242
Se r v i c e
M a nu a l
PUB. NO. CRT2242
AUDIO SYSTEM
POWER AMPLIFIER
Manufactured for TOYOTA
by PIONEER ELECTRONIC CORPORATION
VEHICLE DESTINATION PRODUCED AFTER TOYOTA PART No. ID No. PIONEER MODEL No.
LEXUS SC300, U.S.A., CANADA August 1998 86280-24210 GM-8886ZT/UC,
LEXUS SC400 GM-8886ZT-91/UC
SC300,400

2
GM-8886ZT,8886ZT-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.
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST.......................3
3. SCHEMATIC DIAGRAM .............................................4
4. PCB CONNECTION DIAGRAM ................................10
5. ELECTRICAL PARTS LIST ........................................18
6. ADJUSTMENT..........................................................23
7. GENERAL INFORMATION .......................................25
7.1 IC.........................................................................25
7.2 DIAGNOSIS........................................................28
7.2.1 DISASSEMBLY..........................................28
7.2.2 CONNECTOR FUNCTION DESCRIPTION .......29
7.3 EXPLANATION...................................................30
7.3.1 BLOCK DIAGRAM.....................................30
7.3.2 SYSTEM BLOCK DIAGRAM.....................31
7.3.3 SERVICE MODE FOR DSP AMPLIFIER ....32
8. OPERATIONS AND SPECIFICATIONS.....................34
NOTE:
-The GM-8886ZT-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 GM-8886ZT-91/UC and GM-8886ZT/UC.
-The supplementary model is identical with the original ones except for the following items.
R1A
R3T
TLMT
E
R1H
FL+
RDK RDH
FL-
RDL RDJ RDA
WF+
RDQ
WF-
RDM
RL-
RCZ
RR+
RDP
RL+
RCY
RR-
RDN
SGND
R8G
TXM-
ROY
TXM+
L+
R1L
R+
R1J
L- R-
R1M R1K
BUS-
BUS+
RDB
ACC
R1B
MUTE
R1D
CDR+
CDR-
UHY
UHZ
MUTE
R2N
SGD4
2CB
CDL+
UHO
CDL-
UH1
FR-
FR+
BU
GM-8886ZT/UC,
GM-8886ZT-91/UC
Description Part No.
Cover CEG1045
Carton CHA2114
Contain Box CHD2114

3
GM-8886ZT,8886ZT-91
2. EXPLODED VIEWS AND PARTS LIST
2.1 EXTERIOR
A
A
B
B
1
1
1
1
1
15
16
17
2
2
1
4
1
2
2
9
11 3
3
33
3
814
14
14
14 18
29
28
27
30
6
1
10
24
19
5
26
13
21
20
12
23
22
25
7
1
1
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 Part No. Mark No. Description Part No.
1 Screw BMZ30P060FMC
2 Screw BMZ50P080FMC
3 Screw CBA1327
4 Chassis CNA1852
5 Case CNB2102
6 Shield CNC6809
7 Shield CNC6810
8 Bracket CNC7486
9 Bracket CNC7487
10 Insulator CNM5537
11 Heat Sink CNR1432
12 Amp Unit CWM5682
13 Screw BMZ30P060FMC
14 Screw CBA1393
15 Connector(CN901) CKM1222
16 Connector(CN902) CKM1293
17 Connector(CN903) CKM1245
18 Plug(CN905) CKS3631
19 Plug(CN906) CKS3631
20 Bracket CNC6807
21 Holder CNC6808
22 DSP Unit CWM5683
23 Socket(CN51) CKS3632
24 Socket(CN52) CKS3632
25 Screw IMS30P060FMC
26 Seal CNM5381
27 IC(IC801) TA8221AH1
28 IC(IC821) PAL001A
29 IC(IC851) TA8225H-LF1
30 IC(IC901) NJM7805FA

4
GM-8886ZT,8886ZT-91
1234
1234
D
C
B
A
A
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”.
B
PD5452A
+7.13
+0.93
-13.87
HA12187FP
A-a
A-a A-b
A-a A-b
A-b
A-a
Large size
SCH diagram
Guide page
Detailed page
B

5
GM-8886ZT,8886ZT-91
5678
5678
D
C
B
A
A
A-b
A
B

6
GM-8886ZT,8886ZT-91
1234
1234
D
C
B
A
PD5452A
HA12187FP
A-a
A-a A-b

7
GM-8886ZT,8886ZT-91
5678
5678
D
C
B
A
A-a
A-a A-b
B
B
+7.13
+0.93
-13.87

8
GM-8886ZT,8886ZT-91
1234
1234
D
C
B
A
A-a A-b
A-b
A

9
GM-8886ZT,8886ZT-91
5678
5678
D
C
B
A
A-b
A-a A-b
B

10
GM-8886ZT,8886ZT-91
1234
1234
D
C
B
A
4. PCB CONNECTION DIAGRAM
4.1 DSP UNIT
NOTE FOR PCB DIAGRAMS
1. The parts mounted on this PCB
include all necessary parts for
several destination.
For further information for
respective destinations, be sure
to check with the schematic dia-
gram.
Capacitor
Connector
P.C.Board Chip Part
SIDE A
SIDE B
A
2. Viewpoint of PCB diagrams
BCN906
DSP UNIT
A

11
GM-8886ZT,8886ZT-91
5678
5678
D
C
B
A
A
SIDE A
BCN905

12
GM-8886ZT,8886ZT-91
1234
1234
D
C
B
A
DSP UNIT
A
A

13
GM-8886ZT,8886ZT-91
5678
5678
D
C
B
A
2
3
1
SIDE B
A

14
GM-8886ZT,8886ZT-91
1234
1234
D
C
B
A
B
B
CN52
A
AMP UNIT

15
GM-8886ZT,8886ZT-91
5678
5678
D
C
B
A
SIDE A
CN51
A
B

16
GM-8886ZT,8886ZT-91
1234
1234
D
C
B
A
B
AMP UNIT
B

17
GM-8886ZT,8886ZT-91
5678
5678
D
C
B
A
SIDE B
B

Unit Number :CWM5683
Unit Name :DSP Unit
MISCELLANEOUS
IC 101 IC AK5350-VF
IC 121 IC TC74HCU04AF
IC 131 IC PD2055A
IC 141 IC PD2055A
IC 151 IC TC74HC74AF
IC 301 IC PD5452A
IC 331 IC S-80740AND4I
IC 341 IC HA12187FP
IC 351 IC SM5875AMP
IC 361 IC SM5875AMP
IC 371 IC SM5875AMP
IC 401 IC PMJ003A
IC 421 IC SN761027DL
IC 451 IC NJM2068MD
IC 461 IC NJM2068MD
IC 471 IC NJM2068MD
IC 601 IC PM2002
Q 601 Transistor 2SK209
Q 602 Transistor 2SC2712
D 481 Diode HZU4R3(B3)
D 601 Chip Diode MA151K
D 602 Chip Diode MA151K
D 603 Chip Diode MA151K
L 51 LCTA2R2J3225
L 52 Inductor LCTB1R0K3216
L 53 LCTA2R2J3225
L 101 Inductor LCTB1R0K2125
L 102 Inductor LCTB1R0K2125
L 103 Inductor LCTB1R0K2125
L 104 Inductor LCTB1R0K2125
L 105 Inductor LCTB4R7K2125
L 106 Inductor LCTB120K2125
L 107 Inductor LCTB1R0K2125
L 121 Inductor LCTBR82K2125
L 122 Inductor CTF1305
L 131 Inductor LCTBR82K2125
L 141 Inductor LCTBR82K2125
L 151 Inductor LCTB1R0K2125
L 301 Inductor LCTB1R0K2125
L 302 Inductor LCTB1R0K2125
L 341 Inductor CTF1305
L 342 Inductor CTF1305
L 351 Inductor LCTB1R0K2125
L 352 Inductor LCTB1R0K2125
L 353 Inductor LCTB120K2125
L 361 Inductor LCTB1R0K2125
L 362 Inductor LCTB1R0K2125
L 363 Inductor LCTB120K2125
L 371 Inductor LCTB1R0K2125
L 372 Inductor LCTB1R0K2125
L 373 Inductor LCTB120K2125
L 381 Inductor LCTB1R0K2125
L 401 Inductor LCTB1R0K2125
L 402 Inductor LCTB1R0K2125
L 403 Inductor LCTB1R0K2125
L 404 Inductor LCTB1R0K2125
L 421 Inductor LCTB1R0K2125
L 422 Inductor LCTB1R0K2125
L 424 Inductor LCTB1R0K2125
X 121 Crystal Resonator 22.5792MHZ CSS1406
X 301 Crystal Resonator 6.290MHz CSS1305
X 351 Crystal Resonator 16.9344MHz CSS1052
VR 601 Semi-fixed 10kΩ(B) CCP1019
VR 602 Semi-fixed 10kΩ(B) CCP1206
MIK 601 Microphone CPM1011
RESISTORS
R 52 RS1/10S2R2J
R 101 RS1/10S331J
R 102 RS1/10S331J
R 103 RS1/10S331J
R 104 RS1/10S331J
R 105 RS1/10S221J
R 106 RS1/10S221J
R 107 RS1/10S221J
R 108 RS1/10S221J
R 121 RS1/10S105J
R 123 RS1/10S102J
R 131 RS1/10S221J
R 132 RS1/10S221J
R 133 RS1/10S102J
R 141 RS1/10S221J
R 142 RS1/10S221J
R 143 RS1/10S102J
R 151 RS1/10S102J
R 152 RS1/10S102J
R 301 RS1/10S473J
R 302 RA4C102J
R 303 RA3C102J
R 304 RS1/10S102J
R 305 RS1/10S102J
R 306 RS1/10S102J
R 307 RS1/10S102J
R 308 RA3C473J
R 309 RS1/10S102J
R 310 RS1/10S102J
R 312 RS1/10S473J
R 314 RS1/10S102J
R 315 RS1/10S102J
R 316 RS1/10S102J
R 317 RS1/10S473J
R 318 RS1/10S473J
18
GM-8886ZT,8886ZT-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 Part No.
--- ------ ------------------------------------------ -------------------------
A

19
GM-8886ZT,8886ZT-91
R 319 RS1/10S473J
R 320 RS1/10S102J
R 321 RS1/10S473J
R 322 RS1/10S473J
R 323 RS1/10S473J
R 324 RS1/10S473J
R 325 RS1/10S473J
R 326 RS1/10S102J
R 327 RS1/10S102J
R 330 RS1/10S473J
R 331 RS1/10S104J
R 341 RS1/10S102J
R 342 RS1/10S102J
R 343 RS1/10S473J
R 344 RS1/10S473J
R 351 RS1/10S152J
R 352 RS1/10S152J
R 353 RS1/10S221J
R 361 RS1/10S152J
R 362 RS1/10S152J
R 363 RS1/10S221J
R 371 RS1/10S152J
R 373 RS1/10S221J
R 401 RS1/10S302J
R 402 RS1/10S302J
R 403 RS1/10S302J
R 404 RS1/10S103J
R 421 RS1/10S0R0J
R 422 RS1/10S0R0J
R 423 RS1/10S0R0J
R 424 RS1/10S0R0J
R 425 RS1/10S0R0J
R 451 RS1/10S103J
R 452 RS1/10S103J
R 453 RS1/10S153J
R 454 RS1/10S153J
R 455 RS1/10S682J
R 456 RS1/10S682J
R 457 RS1/10S101J
R 458 RS1/10S101J
R 461 RS1/10S103J
R 462 RS1/10S103J
R 463 RS1/10S153J
R 464 RS1/10S153J
R 465 RS1/10S682J
R 466 RS1/10S682J
R 467 RS1/10S101J
R 468 RS1/10S101J
R 471 RS1/10S103J
R 473 RS1/10S153J
R 475 RS1/10S682J
R 477 RS1/10S101J
R 481 RS1/10S102J
R 491 RS1/10S104J
R 492 RS1/10S104J
R 493 RS1/10S104J
R 494 RS1/10S101J
R 601 RS1/10S474J
R 602 RS1/10S472J
R 603 RS1/10S153J
R 604 RS1/10S153J
R 605 RS1/10S472J
R 606 RS1/10S472J
R 607 RS1/10S684J
R 608 RS1/10S472J
R 609 RS1/10S682J
R 610 RS1/10S103J
R 611 RS1/10S154J
R 612 RS1/10S472J
R 613 RS1/10S104J
R 614 RS1/10S562J
R 615 RS1/10S103J
R 616 RS1/10S102J
R 617 RS1/10S473J
R 618 RS1/10S333J
R 619 RS1/10S472J
R 620 RS1/10S471J
R 621 RS1/10S683J
R 622 RS1/10S103J
R 623 RS1/10S222J
R 624 RS1/10S0R0J
R 625 RS1/10S0R0J
CAPACITORS
C 101 CKSQYB152K50
C 102 CKSQYB152K50
C 103 CEAL101M10
C 104 CKSQYB104K50
C 105 CEAL100M16
C 106 CKSQYB104K50
C 107 CEAL101M10
C 108 CKSQYB104K50
C 109 CKSQYB104K50
C 110 CKSQYB104K50
C 111 CCSQCH101J50
C 112 CCSQCH101J50
C 113 CCSQCH101J50
C 114 CCSQCH101J50
C 121 CEAL100M16
C 122 CEAL100M16
C 123 CKSQYB103K50
C 124 CCSQCH100J50
C 125 CCSQCH100J50
C 131 CEAL100M16
C 132 CEAL100M16
C 133 CKSQYB103K50
C 134 CKSQYB102K50
C 141 CEAL100M16
C 142 CEAL100M16
C 143 CKSQYB103K50
C 144 CKSQYB102K50
C 151 CKSQYB103K50
C 152 CKSQYB103K50
C 301 CEAL100M16
C 302 CEAL100M16
C 303 CKSQYB103K50
C 304 CKSQYB102K50
C 331 CKSQYB103K50
C 341 CKSQYB103K50
C 351 CKSQYB272K50
C 352 CKSQYB272K50
C 353 CEAL100M16
C 354 CKSQYB103K50
C 355 CKSQYB103K50
C 356 CEAL101M10
C 357 CKSQYB104K50
C 358 CCSQCH8R0D50
C 359 CCSQCH8R0D50
C 361 CKSQYB272K50
C 362 CKSQYB272K50
C 363 CEAL100M16
C 364 CKSQYB103K50
C 365 CKSQYB103K50
C 366 CEAL101M10
C 367 CKSQYB104K50
C 371 CKSQYB224K16
C 373 CEAL100M16
C 374 CKSQYB103K50
C 375 CKSQYB103K50
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ ------------------------- =====Circuit Symbol and No.===Part Name Part No. --- ------ ------------------------------------------ -------------------------

C 376 CEAL101M10
C 377 CKSQYB104K50
C 401 CEALNP4R7M16
C 402 CEALNP4R7M16
C 403 CEALNP4R7M16
C 404 CEALNP4R7M16
C 405 CEALNP4R7M16
C 406 CEALNP4R7M16
C 407 CEALNP4R7M16
C 408 CEALNP4R7M16
C 409 CEAL100M16
C 410 CKSQYB104K50
C 411 CEAL2R2M50
C 412 CEAL100M16
C 413 CEALNP4R7M16
C 414 CEALNP4R7M16
C 415 CEALNP4R7M16
C 416 CEALNP4R7M16
C 417 CKSQYB104K50
C 418 CKSQYB104K50
C 419 CKSQYB152K50
C 420 CKSQYB103K50
C 421 CKSQYB102K50
C 422 CKSQYB104K50
C 429 CEALNP100M10
C 430 CEALNP100M10
C 431 CEALNP100M10
C 432 CEALNP100M10
C 435 CEALNP100M10
C 436 CEALNP100M10
C 437 CEAL100M16
C 438 CEAL2R2M50
C 439 CEALNP1R0M50
C 441 CEAL100M16
C 442 CKSQYB103K50
C 443 CKSQYB223K50
C 445 CEALNP100M10
C 446 CKSQYB103K50
C 450 CKSQYB103K50
C 451 CEALNP100M10
C 452 CEALNP100M10
C 453 CKSQYB102K50
C 454 CKSQYB102K50
C 455 CCSQCH151J50
C 456 CCSQCH151J50
C 457 CKSQYB103K50
C 461 CEALNP100M10
C 462 CEALNP100M10
C 463 CKSQYB102K50
C 464 CKSQYB102K50
C 465 CCSQCH151J50
C 466 CCSQCH151J50
C 467 CKSQYB103K50
C 471 CEALNP100M10
C 473 CKSQYB823K25
C 475 CKSQYB123K25
C 477 CKSQYB103K50
C 481 CEAL101M10
C 482 CKSQYB102K50
C 491 CEALNP1R0M50
C 492 CEALNP1R0M50
C 493 CCSQCH100J50
C 494 CEALNP100M10
C 601 CEJA470M10
C 602 CKSQYB103K50
C 603 CEJA330M10
C 604 CEAL220M10
C 605 CEALNP100M10
C 606 CEALNP100M10
C 607 CKSQYB823K25
C 608 CEALNP220M16
C 609 CEALR68M50
C 610 CEAL100M16
C 611 CEAL470M10
C 612 CEAL100M16
C 613 CEALNP100M10
C 614 CEAL220M10
C 615 CEJA101M10
C 616 CEJA470M10
C 617 CEJA470M10
C 618 CEAL6R8M35
C 619 CEALR68M50
C 620 CEJA470M10
C 621 CKSQYB103K50
Unit Number :CWM5682
Unit Name :Amp Unit
MISCELLANEOUS
IC 501 IC NJM2100M
IC 502 IC NJM2100M
IC 701 IC NJM2068MD
IC 721 IC NJM2068MD
IC 751 IC NJM2068MD
IC 801 IC TA8221AH1
IC 821 IC PAL001A
IC 851 IC TA8225H-LF1
IC 901 IC NJM7805FA
IC 902 IC NJM78M08FA
IC 903 IC M51957BFP
Q 761 Transistor DTC323TK
Q 771 Transistor DTC323TK
Q 772 Transistor DTC323TK
Q 775 Transistor DTC323TK
Q 776 Transistor DTC323TK
Q 901 Transistor 2SC2712
Q 902 Transistor 2SC2712
Q 903 Transistor 2SC3651
Q 904 Transistor 2SC2712
Q 905 Transistor 2SC2712
Q 906 Transistor 2SB1260
Q 907 Transistor DTA144EK
Q 908 Transistor DTC144EK
Q 909 Transistor 2SA1162
Q 910 Transistor 2SA1162
Q 912 Transistor DTC144EK
D 501 Diode RB421D
D 821 Chip Diode MA151K
D 901 Diode 5KP24A
D 902 Diode RD7R5M(B3)
D 903 Diode RD7R5M(B3)
D 904 Chip Diode MA151K
D 905 Diode ERA15-02VH
D 906 Diode UDZ5R6(B)
D 907 Diode RD2R7M(B2)
D 908 Diode UDZ3R9(B)
D 909 Chip Diode MA151WK
D 910 Chip Diode MA151WK
D 911 Chip Diode MA151WK
D 912 Chip Diode MA151WK
D 914 Chip Diode MA151K
D 951 Diode UDZ20(B)
D 952 Diode UDZ20(B)
D 953 Diode UDZ20(B)
L 901 Choke Coil 0.3mH CTH1079
20
GM-8886ZT,8886ZT-91
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ ------------------------- =====Circuit Symbol and No.===Part Name Part No. --- ------ ------------------------------------------ -------------------------
B