ORDER NO.
CRT2230
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PUB. NO. CRT2230
HEAD UNIT
Manufactured for TOYOTA
by PIONEER ELECTRONIC CORPORATION
VEHICLE DESTINATION PRODUCED AFTER ID No. TOYOTA PART No. PIONEER MODEL No.
LEXUS GS300 MIDDLE EAST August 1998 P7511 86120-3A551 KEX-M8076ZT-02/ES
KEX-M8076ZT-92/ES
AUDIO SYSTEM
GS300
-This additional service manual is designed to be used together with Model KEX-M8076ZT/UC and KEX-
M8076ZT/ES Service Manual CRT2054. Refer to it for finding parts numbers and adjustment,etc. which
are not shown in this manual.
2
KEX-M8076ZT-02,M8076ZT-92
A
1234
B
C
D
1234
TUNER CONTROL PCB KEYBOARD UNIT
MOTHER
PCB
DECK UNIT
AVC-LAN
TUNER MUTE M
UN
RES
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
3
KEX-M8076ZT-02,M8076ZT-92
5678
A
B
C
D
5678
5678
MIX-AMP
UNBAL-BAL
ANALOG SWITCH
MUTE
ANT
RESET
8V REGULATOR
5V REGULATOR
8V REGULATOR
LCD LAMP
DRIVE
ILL DRIVE
LCD UNIT
A-b
A
F
F
4
KEX-M8076ZT-02,M8076ZT-92
A
1234
B
C
D
1234
TUNER CONTROL PCB KEYBOARD UNIT
MOTHER
PCB
DECK UNIT
RES
A-a A-b
A-a
F
5
KEX-M8076ZT-02,M8076ZT-92
5678
A
B
C
D
5678
AVC-LAN
TUNER MUTE M
UNB
RES
A-a A-b
A-a
F
6
KEX-M8076ZT-02,M8076ZT-92
A
1234
B
C
D
1234
MUTE
ANT
RESET
8V REGULATOR
8V REGULATOR
LCD LAMP
DRIVE
ILL DRIVE
LCD UNIT
A-a A-b
A-b
F
7
KEX-M8076ZT-02,M8076ZT-92
5678
A
B
C
D
5678
MIX-AMP
UNBAL-BAL
ANALOG SWITCH
MUTE
RESET
5V REGULATOR
A-a A-b
A-b
F
8
KEX-M8076ZT-02,M8076ZT-92
A
1234
B
C
D
1234
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
9
KEX-M8076ZT-02,M8076ZT-92
5678
A
B
C
D
5678
SIDE A
A
F
D
CN251
C
CN1003
10
KEX-M8076ZT-02,M8076ZT-92
A
1234
B
C
D
1234
A
MOTHER PCB
F
A
F
11
KEX-M8076ZT-02,M8076ZT-92
5678
A
B
C
D
5678
A
F
SIDE B
12
KEX-M8076ZT-02,M8076ZT-92
A
1234
B
C
D
1234
TUNER CONTROL PCB
I
F
I
TUNER CONTROL PCB
F
A
CN401
13
KEX-M8076ZT-02,M8076ZT-92
5678
A
B
C
D
5678
SIDE A
I
F
B
TUNER UNIT
14
KEX-M8076ZT-02,M8076ZT-92
A
1234
B
C
D
1234
I
TUNER CONTROL PCB
F
I
F
15
KEX-M8076ZT-02,M8076ZT-92
5678
A
B
C
D
5678
SIDE B
I
F
KEX-M8076ZT-02,M8076ZT-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-ZZY.JULY 1998 Printed in Japan
ELECTRICAL PARTS LIST(Page 43)
Main Unit Part No.
Symbol and Description KEX-M8076ZT/ES KEX-M8076ZT-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
EXPLODED VIEWS AND PARTS LIST
EXTERIOR(Page 4)
- EXTERIOR SECTION PARTS LIST
Part No.
Mark No. Description KEX-M8076ZT/ES KEX-M8076ZT-02/ES
5 Main Unit CWM4936 CWM6159
42 Keyboard Unit CWM5605 CWM6163
47 LCD Unit CWM4931 CWM6164
58 Grille Unit CXB2402 CXB3204
59 Door CAT1810 CAT2000
-Supplementary model is identical to the original except for the addition of following items.
Description Part No.
KEX-M8076ZT-92/ES
Polyethylene Bag CEG1026
Carton CHA2025
Contain Box CHD2025
Protector CHP1972,CHP1973
/