ORDER NO.
CRT2546
PUB. NO.
CRT2546
AUDIO SYSTEM
HEAD UNIT
Manufactured for TOYOTA
by PIONEER CORPORATION
VEHICLE
DESTINATION
PRODUCED AFTER
TOYOTA PART No.
ID No.
PIONEER MODEL No.
LEXUS LX470
EUROPE
August 2000
86120-60410
P3726
KEX-M8806ZT/EW
LEXUS LX470
EUROPE
August 2000
86120-60410
P3726
KEX-M8806ZT-91/EW
LEXUS LX470
EUROPE
August 2000
86120-60400
P3727
KEX-M8906ZT/EW
LEXUS LX470
EUROPE
August 2000
86120-60400
P3727
KEX-M8906ZT-91/EW
LX470
Service
Manual
2
KEX-M8806ZT,M8806ZT-91,M8906ZT,M8906ZT-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.
- These models do not provide the test mode for CD changers.
- KEX-M8806ZT/EW and KEX-M8906ZT/EW have adopted AVC-LAN.
KEX-M8806ZT/EW
- Supplementary model is identical to the original except for the addition of following items.
Description
Part No.
KEX-M8806ZT-91/EW KEX-M8906ZT-91/EW
Polyethylene Bag
CEG1106
CEG1106
Carton
CHA1721
CHA1721
Contain Box
CHL4141
CHL4142
Cover
CEG1045
CEG1045
KEX-M8906ZT/EW
ID No.P3726
ID No.P3727
- 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
CONTENTS
1. SAFETY INFORMATION ............................................3
2. EXPLODED VIEWS AND PARTS LIST .......................4
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...10
4. PCB CONNECTION DIAGRAM ................................26
5. ELECTRICAL PARTS LIST ........................................38
6. ADJUSTMENT..........................................................45
7. GENERAL INFORMATION .......................................49
7.1 DIAGNOSIS .......................................................49
7.1.1 DISASSEMBLY ........................................49
7.1.2 CONNECTOR FUNCTION DESCRIPTION ..50
7.1.3 TROUBLESHOOTING................................51
7.2 IC ........................................................................52
7.3 EXPLANATION..................................................55
7.3.1 SYSTEM BLOCK DIAGRAM ...................55
7.3.2 OPERATIONAL FLOW CHART ................56
8. OPERATIONS AND SPECIFICATIONS.....................57
3
KEX-M8806ZT,M8806ZT-91,M8906ZT,M8906ZT-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.
4
KEX-M8806ZT,M8806ZT-91,M8906ZT,M8906ZT-91
3
1
1
1
5
15
45
7
17
11
12
10
43
44
42
6
43
18
9
19
16
7
8
8
13
14
8
8
4
2
2
20
27
21
30
31
21
21
21
21
50
46
46
36
41
37
35
49
49
43
23
26
39
40
24
26
43
33
34
32
22
38
25
33
34
32
48
47
29
28
2. EXPLODED VIEWS AND PARTS LIST
2.1 EXTERIOR(KEX-M8806ZT)
5
KEX-M8806ZT,M8806ZT-91,M8906ZT,M8906ZT-91
Mark No. Description
Part No.
Mark No. Description
Part No.
1 Screw
BMZ26P050FMC
2 Screw
BMZ30P050FMC
3 Case
CNB2590
4 Insulator
CNM6654
5 Cushion
CNM6934
6 Main Unit
CWM7246
7 Screw
BMZ30P080FMC
8 Screw
BPZ30P060FSN
9 Terminal(CN202)
CKF1059
10 Terminal(CN303)
CKF1059
11 Connector(CN302)
CKM1065
12 Connector(CN301)
CKM1322
13 Plug(CN651)
CKS3542
14 Connector(CN701)
CKS3568
15 Antenna Jack(CN201)
CKX1041
16 Holder
CNC8711
17 Holder
CNC8712
18 FM/AM Tuner Unit
CWE1610
19 Holder
CNC6122
20 Chassis Unit
CXB5297
21 Screw
BPZ26P100FMC
22 Button(EJECT)
CAC6642
23 Button(CH,PROG,DISC)
CAC6771
24 Button(SEEK,TRACK)
CAC6772
25 Button(TA)
CAC6711
26 Lighting Conductor
CNV6144
27 Rubber
CNV6145
28 Lighting Conductor
CNV6500
29 Holder
CNV6502
30 Keyboard Unit
CWM7103
31 Socket(CN901)
CKS3555
32 Knob Assy
CXB5296
*
33 Knob
CAA1500
34 Spring
CBL-108
35 Button(AM)
CAC5252
36 Button(TAPE)
CAC5254
37 Button(FM)
CAC5253
38 Grille Unit
CXB6093
39 Door
CAT2167
40 Spring
CBH1371
41 Button(DISC)
CAC6186
42 Cassette Mechanism ModuleEXK3885
43 Screw
IMS26P050FMC
44 Transistor(Q331)
2SB1185
45 Transistor(Q521)
2SB1185
46 Shield
CNC9047
47 Holder
CNV6503
48 Lighting Conductor
CNV6501
49 Holder Unit
CXB2765
50 Lighting Conductor
CNV6143
- EXTERIOR SECTION PARTS LIST(KEX-M8806ZT)
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.