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ORDER NO.
CRT2544
PUB. NO.
CRT2544
AUDIO SYSTEM
HEAD UNIT
Manufactured for TOYOTA
by PIONEER CORPORATION
VEHICLE
DESTINATION
PRODUCED AFTER
TOYOTA PART No.
ID No.
PIONEER MODEL No.
LEXUS RX300
U.S.A., CANADA
August 2000
86120-48090
P1725
KEX-M8006ZT/UC
LEXUS RX300
U.S.A., CANADA
August 2000
86120-48090
P1725
KEX-M8006ZT-91/UC
LEXUS RX300
EUROPE
August 2000
86120-48100
P3730
KEX-M8106ZT/EW
LEXUS RX300
EUROPE
August 2000
86120-48100
P3730
KEX-M8106ZT-91/EW
RX300
Service
Manual


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2
KEX-M8006ZT,M8006ZT-91,M8106ZT,M8106ZT-91
- Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.
- This service manual does not describe the CD test mode.
For the operations in the CD test mode, refer to the CD player's Service Manual.
- KEX-M8006ZT/UC and KEX-M8106ZT/EW have adopted AVC-LAN.
KEX-M8006ZT/UC
CONTENTS
1. SAFETY INFORMATION ............................................3
2. EXPLODED VIEWS AND PARTS LIST .......................4
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .....8
4. PCB CONNECTION DIAGRAM ................................30
5. ELECTRICAL PARTS LIST ........................................40
6. ADJUSTMENT..........................................................51
7. GENERAL INFORMATION .......................................56
7.1 DIAGNOSIS .......................................................56
7.1.1 CONNECTOR FUNCTION DESCRIPTION ..56
7.1.2 TROUBLESHOOTING................................57
7.2 IC ........................................................................58
7.3 EXPLANATION..................................................61
7.3.1 SYSTEM BLOCK DIAGRAM ...................61
7.3.2 OPERATION FLOW CHART.....................62
8. SPECIFICATIONS......................................................63
- Supplementary model is identical to the original except for the addition of following items.
Description
Part No.
KEX-M8006ZT-91/UC KEX-M8106ZT-91/EW
Polyethylene Bag
CEG-162
CEG-162
Cover
CEG1045
CEG1045
Carton
CHA1721
CHA1721
Contain Box
CHL4111
CHL4112
KEX-M8106ZT/EW
ID No.P1725
ID No.P3730
- This service manual should be used together with the following manual(s):
Model
Order No.
Mech. Module
Remarks
CX-631
CRT1640
2L
Cassette Mech. Module:Mech.Description


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KEX-M8006ZT,M8006ZT-91,M8106ZT,M8106ZT-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.


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4
KEX-M8006ZT,M8006ZT-91,M8106ZT,M8106ZT-91
A
B
2. EXPLODED VIEWS AND PARTS LIST
2.1 EXTERIOR


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KEX-M8006ZT,M8006ZT-91,M8106ZT,M8106ZT-91
- EXTERIOR SECTION PARTS LIST
Mark No. Description
Part No.
1 Screw
BMZ26P050FMC
2 Screw
BMZ30P050FMC
3 Cover
CHW1830
4 Case
CNB2621
5 Cloth
CNM5798
6 Insulator
CNM6654
7 Cushion
CNM6934
8 Main Unit(KEX-M8006ZT) CWM7097
Main Unit(KEX-M8106ZT) CWM7098
9 Screw
BMZ30P080FMC
10 Screw
BPZ30P060FSN
11 Terminal(CN202)
CKF1059
12 Terminal(CN303)
CKF1059
13 Connector(CN302)
CKM1065
14 Connector(CN301)
CKM1322
15 Connector(CN701)
CKS3568
16 Antenna Jack(CN201)
CKX1024
(KEX-M8006ZT)
Antenna Jack(CN201)
CKX1041
(KEX-M8106ZT)
17 Holder
CNC8711
18 Holder
CNC8712
19 FM/AM Tuner Unit
CWE1543
(KEX-M8006ZT)
FM/AM Tuner Unit
CWE1591
(KEX-M8106ZT)
20 Holder(KEX-M8006ZT)
CNC6774
Holder(KEX-M8106ZT)
CNC6122
21 Chassis Unit
CXB5302
22 Cassette Mechanism ModuleEXK3885
23 Screw
IMS26P050FMC
24 Transistor(Q331)
2SB1185
25 Transistor(Q521)
2SB1185
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.