Page 1
ORDER NO.
CRT2224
Se
r
vic
e
M
a
nu
a
l
PUB. NO. CRT2224
HEAD UNIT
Manufactured for TOYOTA
by PIONEER ELECTRONIC CORPORATION
VEHICLE DESTINATION PRODUCED AFTER ID No. TOYOTA PART No. PIONEER MODEL No.
LEXUS GS300 EUROPE August 1998 P3714 86120-3A531 KEX-M8076ZT-02/EW
KEX-M8076ZT-92/EW
LEXUS GS300 EUROPE August 1998 P3715 86120-3A541 KEX-M8176ZT-02/EW
KEX-M8176ZT-92/EW
LEXUS GS300 OVERSEAS August 1998 P7512 86120-3A571 KEX-M8476ZT-02/ES
KEX-M8476ZT-92/ES
AUDIO SYSTEM
GS300
Page 2
2
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
KEX-M8476ZT-02,M8476ZT-92
- This additional service manual is designed to be used together with Model KEX-M8076ZT/EW,KEXM8176ZT/EW and KEX-M8476ZT/ES Service Manual CRT2056. Refer to it for finding parts numbers
and adjustment,etc. which are not shown in this manual.
EXPLODED VIEWS AND PARTS LIST
EXTERIOR(Page 4)
- EXTERIOR PARTS LIST
Part No.
Mark No. Description KEX-M8076ZT/EW KEX-M8076ZT-02/EW
5 Main Unit CWM4934 CWM6157
46 Keyboard Unit CWM4930 CWM6161
51 LCD Unit CWM4931 CWM6164
62 Grille Unit CXB2400 CXB3202
63 Door CAT1808 CAT1998
- Supplementary model is identical to the original except for the addition of following items.
Description Part No.
KEX-M8076ZT-92/EW,KEX-M8176ZT-92/EW,KEX-M8476ZT/ES
Polyethylene Bag CEG1026
Carton CHA2025
Contain Box CHD2025
Protector CHP1972,CHP1973
Part No.
Mark No. Description KEX-M8176ZT/EW KEX-M8176ZT-02/EW
5 Main Unit CWM4935 CWM6158
46 Keyboard Unit CWM4929 CWM6162
51 LCD Unit CWM4932 CWM6165
62 Grille Unit CXB2401 CXB3203
63 Door CAT1809 CAT1999
Part No.
Mark No. Description KEX-M8476ZT/ES KEX-M8476ZT-02/ES
5 Main Unit CWM5419 CWM6046
46 Keyboard unit CWM5116 CWM6160
51 LCD Unit CWM4932 CWM6165
62 Grille Unit CXB2404 CXB3206
63 Door CAT1885 CAT2002
Page 3
3
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
M8476ZT-02,M8476ZT-92
ELECTRICAL PARTS LIST(Page 45)
Main Unit
Part No.
KEX-M8076ZT/EW KEX-M8076ZT-02/EW
Symbol and Description KEX-M8176ZT/EW KEX-M8176ZT-02/EW
Q962 Not used 2SA1162
D941 MA8043(H) HZU4R3(B3)
D954 Not used UDZ10(B)
R968 Not used RS1/10S123J
R969,970,971 Not used RS1/10S103J
R974 Not used RS1/8S472J
R999 RS1/10S0R0J Not used
Main Unit
Part No.
Symbol and Description KEX-M8476ZT/ES KEX-M8476ZT-02/ES
Q962 Not used 2SA1162
D941 MA8043(H) HZU4R3(B3)
D954 Not used UDZ10(B)
R518 Not used RS1/16S821J
R519 Not used RS1/16S151J
R968 Not used RS1/10S123J
R969,970,971 Not used RS1/10S103J
R974 Not used RS1/8S472J
R999 RS1/10S0R0J Not used
C505,506 CCSQCH101J50 CCSRCH101J50
Page 4
4
A
1
234
B
C
D
12
34
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
KEX-M8476ZT-02,M8476ZT-92
TUNER CONTROL PCB
KEYBOARD UNIT
MOTHER
PCB
DECK UNIT
AVC-LAN
TUNER MUTE
MIX-A
UNBAL
RESET
ANTI-THEFT
SCHEMATIC DIAGRAM
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-b
A-a
A-b
A-b
A-a
Large size
SCH diagram
Guide page
Detailed page
A-a
A
F
F
Page 5
5
5
6
7
8
A
B
C
D
5
6
7
8
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
M8476ZT-02,M8476ZT-92
5
6
7
8
MIX-AMP
NBAL-BAL
ANALOG SWITCH
MUTE
ANT
8V REGULATOR
5V REGULATOR
8V REGULATOR
LCD LAMP
DRIVE
ILL DRIVE
LCD UNIT
A-b
A
F
F
Page 6
6
A
1
234
B
C
D
12
34
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
KEX-M8476ZT-02,M8476ZT-92
TUNER CONTROL PCB
KEYBOARD UNIT
MOTHER
PCB
DECK UNIT
RESE
ANTI-THEFT
M8076ZT-02/EW
M8176ZT-02/EW ONLY
M8076ZT-02/EW
M8176ZT-02/EW ONLY
M8176ZT-02/EW
M8476ZT-02/ES
ONLY
M8076ZT-02/EW
M8176ZT-02/EW ONLY
M8076ZT-02/EW
M8176ZT-02/EW ONLY
M8076ZT-02/EW
M8176ZT-02/EW
ONLY
M8076ZT-02/EW
M8176ZT-02/EW ONLY
A-a
A-b
A-a
F
Page 7
7
5
6
7
8
A
B
C
D
5
6
7
8
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
M8476ZT-02,M8476ZT-92
AVC-LAN
TUNER MUTE
MIX
UNB
M8076ZT-02/EW
M8176ZT-02/EW ONLY
M8076ZT-02/EW
M8176ZT-02/EW ONLY
M8076ZT-02/EW
M8176ZT-02/EW ONLY
M8076
M8176
A-a
A-b
A-a
F
Page 8
8
A
1
234
B
C
D
12
34
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
KEX-M8476ZT-02,M8476ZT-92
MUTE
ANT
8V REGULATOR
8V REGULATOR
LCD LAMP
DRIVE
ILL DRIVE
LCD UNIT
A-a
A-b
A-b
F
Page 9
9
5
6
7
8
A
B
C
D
5
6
7
8
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
M8476ZT-02,M8476ZT-92
MIX-AMP
ANALOG SWITCH
5V REGULATOR
M8076ZT-02/EW
M8176ZT-02/EW ONLY
A-a
A-b
A-b
F
Page 10
10
A
1
234
B
C
D
12
34
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
KEX-M8476ZT-02,M8476ZT-92
Capacitor
Connector
P.C.Board
Chip Part
SIDE A
SIDE B
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
diagram.
2. Viewpoint of PCB diagrams
PCB CONNECTION DIAGRAM
MOTHER PCB
A
F
A
MOTHER PCB
F
C
CN1004
I
CN652,CN653
Page 11
11
5
6
7
8
A
B
C
D
5
6
7
8
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
M8476ZT-02,M8476ZT-92
SIDE A
F
D
CN251
C
CN1003
A
Page 12
12
A
1
234
B
C
D
12
34
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
KEX-M8476ZT-02,M8476ZT-92
A
MOTHER PCB
F
A
F
Page 13
13
5
6
7
8
A
B
C
D
5
6
7
8
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
M8476ZT-02,M8476ZT-92
A
F
SIDE B
Page 14
14
A
1
234
B
C
D
12
34
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
KEX-M8476ZT-02,M8476ZT-92
TUNER CONTROL PCB
I
F
I
TUNER CONTROL PCB
F
A
CN401
Page 15
15
5
6
7
8
A
B
C
D
5
6
7
8
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
M8476ZT-02,M8476ZT-92
SIDE A
F
B
TUNER UNIT
I
Page 16
16
A
1
234
B
C
D
12
34
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
KEX-M8476ZT-02,M8476ZT-92
I
TUNER CONTROL PCB
F
I
F
Page 17
17
5
6
7
8
A
B
C
D
5
6
7
8
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
M8476ZT-02,M8476ZT-92
SIDE B
F
I
Page 18
KEX-M8076ZT-02,M8076ZT-92,M8176ZT-02,M8176ZT-92
KEX-M8476ZT-02,M8476ZT-92
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, 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 1998
K-ZZU JULY 1998 Printed in Japan
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