Pioneer gmx 312 service manual

Page 1

(ID PIONEEIT

The Art of Entertainment

Service

ORDER NO.

CRT1971

BRIDGEABLE POWER AMPLIFIER

GM'X4DE'DE XIH/Ew
GM 'X3'IE XIH/uc

CONTENTS
1. SAFETY INFORMATION ............................................ 1 5. ELECTRICAL PARTS LIST ........................................ 12
2. EXPLODED VIEWS AND PARTS LIST ....................... 2 6. ADJUSTMENT .......................................................... 14
3. SCHEMATIC DIAGRAM ............................................. 6 7. GENERAL INFORMATION ....................................... 15
4. PCB CONNECTION DIAGRAM .................................. 8 7.1 DISASSEMBLY ................................................... 15
8. OPERATIONS AND SPECIFICATIONS ..................... 16
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 pr0perly 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 mot risk trying to do so
and refer the repair to a qualified service technician.

UC model

CAUTION

This service manual is intended for qualified service technicians; it is not meant for the casual do~it~yourse|fer.
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.

WARNING

Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxi-
cant which may cause birth defects or other reproductive harm (California Health & Safety Code, Section 25249.5).
When servicing or handling Circuit boards and other components which contain lead in solder, avoid unprotected Skin
contact with the solder. Also, when soldering do not inhale any smoke or fumes produced.

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1~Chome, MegurO-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 908014760 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, Lane Crawford Place, Singapore 0923

© PIONEER ELECTRONIC CORPORATION 1996 K-FFB. DEC. 1996 Printed in Japan

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2.. EXP.

"l"

Fig. 1

llll PARTS M31"

Mark No. Description

Part No.

1 Contain Box

2 Canon

3 Protector

4 Polyethylene Bag
5-1 Screw Assy

5-2 Screwball}
5~3 Polyethylene Bag
5-4 Terminallx8)
6 Cord Assy
7-1 Owners Manual

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Mark No. Description

Part No.

:24

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>l¢

7-2 Warranty Card
73 Caution Card
7-4 Caution Card
7-5 Card

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See Contrast table (2)
See Contrast table (2)
See Contrast table (2)