Pioneer gm 8406 zt service manual

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Service
Manual

Pioneer

TOYOTA

©LB<|J5 LX470

AUDIO SYSTEM
POWER AMPLIFIER

ORDER NO.

CRT2498

VEHICLE DESTINATION PRODUCED AFTER TOYOTA PART NO. ID No. PIONEER MODEL N0.
LEXUS LX470 U.S.A August 2000 86280-60250 7 GM-84062T/UC
Canada 7 GM-84062T-91/UC
Manufactured for TOYOTA

by PIONEER CORPORATION

PUB. N0. CRT2498

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GM-84OGZT.84OGZT-91

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NOTE:
0 The GM-84OBZT-91/UC is supplementally genuine part for a TOYOTA vehicle, and a Pioneer product for recycling
stock.
0 As for the structure and electrical system, there is no difference between the GM-8406ZT-9I/UC and GM-84OBZT/UC.
C Supplementally model is identical to the original except for the addition of following items.
*:Non spare part
Part No.
Description GM-84062T-91/UC
Cover CEG1057
Protector CHP2329
Protector CHP2330
Carton CHG4144
Contain Box CHL4145
. When diagnosing a product, take care of its heated portion.
Power IC (IC801,802,803)
Power Supply IC (IC901,902)
DSP IC (IC201,251)
Heat Sink
IC Holder

CONTENTS

. SAFETY INFORMATION ....................
. EXPLODED VIEWS AND PARTS LIST ..

. PCB CONNECTION DIAGRAM.
. ELECTRICAL PARTS LIST .........

. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ....5

7. GENERAL INFORMATION
7.1 DIAGNOSIS ................ ..
7.1.1 DISASSEMBLY ......................................... 28

7.1.2 CONNECTOR FUNCTION DESCRIPTION

7.2 IC ..................................................................

mm4>wN--

7.3 EXPLANATION ................................
7.3.1 OPERATIONAL FLOW CHART.

7.3.2 SYSTEM BLOCK DIAGRAM ..... ..

8. SPECIFICATIONS ..................................................... 37

. ADJUSTMENT ......................................................... 24

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.