Service
Manual
ORDER NO.
CRT2497
GS300,430 AUDIO SYSTEM POWER AMPLIFIER
VEHICLE |
DESTINATION |
PRODUCED AFTER |
TOYOTA PART No. |
ID No. |
PIONEER MODEL No. |
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LEXUS GS300,430 |
USA,EUROPE |
August 2000 |
86280-30372 |
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GM-8506ZT/E |
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GM-8506ZT-91/E |
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86280-30362 |
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GM-8606ZT/E |
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GM-8606ZT-91/E |
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Manufactured for TOYOTA |
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by PIONEER CORPORATION |
PUB. NO. CRT2497 |
GM-8506ZT,8506ZT-91,8606ZT,8606ZT-91 |
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GM-8506ZT/E |
GM-8606ZT/E |
NOTE: |
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-The GM-8506ZT-91/E and GM-8606ZT-91/E are supplementally 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-8506ZT-91/E, GM-8606ZT-91/E and GM-8506ZT/E, GM-8606ZT/E.
-Supplementally model is identical to the original except for the addition of following items.
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Part No. |
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Description |
GM-8506ZT-91/E |
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GM-8606ZT-91/E |
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Cover |
CEG1045 |
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CEG1045 |
Air cushioned bag |
CEG1081 |
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CEG1081 |
Carton |
CHG3331 |
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CHG3331 |
Contain Box |
CHL4148 |
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CHL4149 |
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CONTENTS
1. |
SAFETY INFORMATION............................................ |
2 |
7. GENERAL INFORMATION....................................... |
29 |
2. |
EXPLODED VIEWS AND PARTS LIST ...................... |
3 |
7.1 DIAGNOSIS ....................................................... |
29 |
3. |
BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .... |
5 |
7.1.1 DISASSEMBLY......................................... |
29 |
4. |
PCB CONNECTION DIAGRAM................................ |
12 |
7.1.2 CONNECTOR FUNCTION DESCRIPTION ...... |
30 |
5. |
ELECTRICAL PARTS LIST........................................ |
20 |
7.2 IC ........................................................................ |
31 |
6. |
ADJUSTMENT ......................................................... |
25 |
7.3 EXPLANATION................................................... |
33 |
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7.3.1 OPERATIONAL FLOW CHART ................. |
33 |
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7.3.2 SYSTEM BLOCK DIAGRAM..................... |
35 |
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7.3.3 SERVICE MODE FOR DSP AMPLIFIER .... |
36 |
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8. SPECIFICATIONS ..................................................... |
39 |
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.
2
GM-8506ZT,8506ZT-91,8606ZT,8606ZT-91
2. EXPLODED VIEWS AND PARTS LIST
2.1 EXTERIOR (GM-8506ZT/E)
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5 |
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7 |
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29 |
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28 |
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8 |
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10 |
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6 |
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17 |
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27 |
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11 |
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26 |
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23 |
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15 24 |
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1 |
12 |
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3 |
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4
1
2
9
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. |
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Mark No. Description |
Part No. |
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1 |
Screw |
BMZ30P060FMC |
16 |
Screw(M3x6) |
CBA1393 |
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2 |
Screw |
BMZ50P060FMC |
17 |
Bracket |
CNC6807 |
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3 |
Screw(M3x5) |
CBA1327 |
18 |
Holder |
CNC6808 |
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4 |
Chassis |
CNA1852 |
19 |
Connector(CN901) |
CKM1222 |
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5 |
Case |
CNB2102 |
20 |
Connector(CN902) |
CKM1244 |
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6 |
Shield |
CNC6809 |
21 |
Connector(CN903) |
CKM1245 |
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7 |
Shield |
CNC6810 |
22 |
Plug(CN905) |
CKS3631 |
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8 |
Bracket |
CNC6813 |
23 |
Plug(CN906) |
CKS3631 |
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9 |
Bracket |
CNC6811 |
24 |
IC(IC901) |
NJM7805FA |
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10 |
Insulator |
CNM5537 |
25 |
IC(IC801) |
TA8221AH1 |
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11 |
Heat Sink |
CNR1432 |
26 |
IC(IC821) |
PAL001A |
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12 |
Amp Unit |
CWM6207 |
27 |
IC(IC851) |
TA8225H-LF1 |
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13 |
DSP Unit |
CWM7243 |
28 |
Socket(CN51) |
CKS3632 |
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14 |
Screw |
IMS30P060FMC |
29 |
Socket(CN52) |
CKS3632 |
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15 |
Screw |
BMZ30P060FMC |
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* 30 Seal |
CNM5381 |
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3
GM-8506ZT,8506ZT-91,8606ZT,8606ZT-91
2.2 EXTERIOR (GM-8606ZT/E)
1 |
5 |
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7
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30 |
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18 |
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15 24 |
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21 |
8 |
20
19
17
16
23
12
1
- EXTERIOR SECTION PARTS LIST
Mark No. Description |
Part No. |
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Mark No. Description |
Part No. |
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1 |
Screw |
BMZ30P060FMC |
16 |
Screw(M3x6) |
CBA1393 |
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2 |
Screw |
BMZ50P060FMC |
17 |
Bracket |
CNC6807 |
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3 |
Screw(M3x5) |
CBA1327 |
18 |
Holder |
CNC6808 |
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4 |
Chassis |
CNA1852 |
19 |
Connector(CN901) |
CKM1222 |
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5 |
Case |
CNB2102 |
20 |
Connector(CN902) |
CKM1244 |
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6 |
Shield |
CNC6809 |
21 |
Connector(CN903) |
CKM1245 |
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7 |
Shield |
CNC6810 |
22 |
Plug(CN905) |
CKS3631 |
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8 |
Bracket |
CNC6813 |
23 |
Plug(CN906) |
CKS3631 |
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9 |
Bracket |
CNC6812 |
24 |
IC(IC901) |
NJM7805FA |
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10 |
Insulator |
CNM5537 |
25 |
IC(IC801) |
TA8221AH1 |
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11 |
Heat Sink |
CNR1432 |
26 |
IC(IC821) |
PAL001A |
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12 |
Amp Unit |
CWM6208 |
27 |
IC(IC851) |
TA8225H-LF1 |
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13 |
DSP Unit |
CWM7245 |
28 |
Socket(CN51) |
CKS3632 |
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14 |
Screw |
IMS30P060FMC |
29 |
Socket(CN52) |
CKS3632 |
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15 |
Screw |
BMZ30P060FMC |
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* 30 Seal |
CNM5381 |
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4
1 |
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2 |
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3 |
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4 |
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GM-8506ZT,8506ZT-91,8606ZT,8606ZT-91
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
A
A |
DSP UNIT |
B |
AMP UNIT |
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B
C
D
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GM-8506ZT,8506ZT-91,8606ZT,8606ZT-91
3.2 SCHEMATIC DIAGRAM
Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL
PARTS LIST”. |
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A-a |
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A |
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4.9V |
4.9V |
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Large size |
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A-a |
A-b |
SCH diagram |
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A-a |
A-b |
Guide page |
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5.0V |
A-a |
A-b |
Detailed page |
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B |
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2.3V |
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4.9V |
4.9V |
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3.4V |
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4.9V |
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3.5V |
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3.5V |
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7.9V |
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3.0V |
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3.0V |
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3.0V |
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3.0V |
4.1V |
7.5V |
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3.0V |
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3.4V |
1.0V |
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0.4V |
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7.8V |
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3.5V |
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7.9V |
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3.5V |
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3.5V |
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3.5V |
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7.9V |
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7.9V |
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3.8V |
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C |
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5.0V |
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TAPE: -1.05dBs |
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CD: +6.95dBs |
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TUNER(EW): -9.05dBs |
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TAPE: -6.85dBs |
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TUNER(UC):-14.05dBs |
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3.8V |
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2.5V |
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5.0V |
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3.8V |
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D |
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6 A B
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2 |
3 |
4 |
5 |
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6 |
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7 |
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8 |
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GM-8506ZT,8506ZT-91,8606ZT,8606ZT-91
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A-b |
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4.9V |
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A DSP UNIT |
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4.3V |
7.9V |
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7.9V |
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4.3V |
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4.3V |
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4.9V |
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2.5V |
4.3V |
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TAPE: -10.05dBs |
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CD: -3.55dBs |
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2.5V |
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4.3V |
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4.9V |
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4.9V |
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4.3V |
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4.3V |
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12.35dBs |
5.85dBs- |
4.9V |
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4.3V |
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TAPE: - |
CD: |
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2.5V |
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4.9V |
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4.3V |
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4.3V |
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4.3V |
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4.9V |
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2.5V |
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4.9V |
4.9V |
2.5V |
2.5V |
3.0V |
2.5V |
2.5V |
2.5V |
2.5V |
3.8V |
3.8V |
3.8V |
3.8V |
3.8V |
7.9V |
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7.9V |
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13.2V |
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12.7V |
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13.2V |
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0.3mH |
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13.1V |
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13.2V |
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3.8V |
5.0V |
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4.1V |
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3.8V |
7.9V |
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TAPE: +25.15dBs |
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1.8V |
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7.6V |
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1.2V |
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13.2V |
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NOTE : |
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Symbol indicates a resistor. |
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No differentiation is made between chip resistors and |
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discrete resistors. |
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Symbol indicates a capacitor. |
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No differentiation is made between chip capacitors and |
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discrete capacitors. |
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B AMP UNIT |
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5 |
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6 |
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7 |
A
5.0V
B
TAPE: +0.2dBs
CD: +8.2dBs
TUNER(EW): -7.8dBs
TUNER(UC):-12.8dBs
C
Decimal points for resistor |
D |
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and capacitor fixed values |
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are expressed as : |
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2.2 ← |
2R2 |
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0.022 |
←R022 |
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A B 7
8
a-A 8 1
2
3
4
D |
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C |
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B |
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A |
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A-a |
A-b |
-GM |
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4.9V |
4.9V |
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8506ZT,8506ZT |
1 |
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1 |
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- |
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5.0V |
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91,8606ZT,8606ZT |
2 |
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- |
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2 |
91 |
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3 |
2.3V
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4.9V |
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4.9V |
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3.4V |
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4.9V |
4 |
3.5V |
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3.5V |
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7.9V |
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3.0V |
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3.0V |
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3 |
3.0V |
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3.0V |
4.1V |
7.5V |
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3.0V |
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3.4V |
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1.0V |
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0.4V |
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7.8V
3.5V
7.9V
3.5V
3.5V
3.5V
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7 |
8 |
GM-8506ZT,8506ZT-91,8606ZT,8606ZT-91
4 |
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6 |
7 |
A-a A-b
A
TAPE: -6.85dBs
9V.7
3.8V |
3.8V |
3.8V |
B
C
5.0V |
5.0V |
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2.5V |
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3.5V |
3.5V |
3.5V |
7.9V |
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3.5V |
TAPE: -1.05dBs CD: +6.95dBs TUNER(EW): -9.05dBs TUNER(UC):-14.05dBs |
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7.9V |
D
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GM-8506ZT,8506ZT-91,8606ZT,8606ZT-91
A
B
C
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5.0V |
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A-a |
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10.05dBs |
-3.55dBs |
4.9V |
4.9V |
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UNIT |
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TAPE: - |
CD: |
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9V.7 |
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DSP |
7.9V |
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8V.3 |
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8V.3 |
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8V.3 |
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8V.3 |
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8V.3 |
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5V.2 |
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5V.2 |
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5V.2 |
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5V.2 |
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0V.3 |
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4.3V |
4.3V |
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4.3V |
4.3V |
4.3V |
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5V.2 |
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7.9V |
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5V.2 |
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9V.4 |
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9V.7 |
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9V.4 |
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4.3V |
4.3V |
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4.3V |
4.3V |
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4.3V |
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4.3V |
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4.9V |
4.9V |
2.5V |
4.9V |
4.9V |
2.5V |
2.5V |
2.5V |
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4.9V |
CD:-85dBs.5
TAPE:-35dBs.12
D
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10 A-b
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GM-8506ZT,8506ZT-91,8606ZT,8606ZT-91 |
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CD: +8.2dBs TUNER(EW): -7.8dBs |
TUNER(UC):-12.8dBs |
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Decimal points for resistor |
and capacitor fixed values |
are expressed as : |
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A |
TAPE:+0.2dBs |
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←2.22R2 |
←0.022R022 |
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A-aAb- |
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9.7 |
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12.7V |
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TAPE: +25.15dBs |
13.2V |
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No differentiation is made between chip resistors and |
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Symbol indicates a capacitor. |
No differentiation is made between chip capacitors and discrete capacitors. |
B AMP UNIT |
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8.3 |
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Symbol indicates a resistor. |
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discrete resistors. |
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0.3mH |
4.1V |
NOTE : |
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13.2V |
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9.4 |
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9V.7 |
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13.1V |
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13.2V |
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1.8V |
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1.2V |
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7.9V |
7.6V |
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C |
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5.0V |
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3.8V |
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3.8V |
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A-b B |
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GM-8506ZT,8506ZT-91,8606ZT,8606ZT-91
|
4. PCB CONNECTION DIAGRAM |
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A |
4.1 DSP UNIT |
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NOTE FOR PCB DIAGRAMS |
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1. The parts mounted on this PCB |
2. Viewpoint of PCB diagrams |
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include all necessary parts for |
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several destination. |
Connector |
Capacitor |
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For further information for |
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SIDE A |
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respective destinations, be sure |
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to check with the schematic dia- |
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gram. |
P.C.Board |
Chip Part |
SIDE B |
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A DSP UNIT |
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B CN906 |
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B |
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C
D
12 A
1 |
2 |
3 |
4 |
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