Pioneer gmx 404 service manual

Page 1

(U) PIONEER®

The Art of Entertainment

ervice
anual

BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER

GM 'X404 -02 X'lH/EW
GM _X3II4 XIH/uc

ORDER NO.

CRT1972

CONTENTS
1. SAFETY INFORMATION ............................................ 1 5. ELECTRICAL PARTS LIST ........................................ 12
2. EXPLODED VIEWS AND PARTS LIST ....................... 2 6. ADJUSTMENT .......................................................... 16
3. SCHEMATIC DIAGRAM ............................................. 6 7. GENERAL INFORMATION ....................................... 16
4. PCB CONNECTION DIAGRAM .................................. 8 7.1 DISASSEMBLY ................................................... 16
8. OPERATIONS AND SPECIFICATIONS ..................... 17
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 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-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.

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 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, Lane Crawford Place, Singapore 0923

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

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GM-X4o4-oa,x314

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING METHOD

NOTE:

a--.

.1-

~- ---

Fig. 1

0 Parts marked by " * "are generally unavailable because they are not in our Master Spare Parts List.

0 Screws adjacent to 7 mark on the product are used for disassembly.
(1) PARTS LIST

Mark No.

1
2
3
4
5-1

5-2
5-3

Description

Contain Box
Canon

Protector
Polyethylene Bag
Screw Assy

Screwlx4)
Polyethylene Bag

54 Terminalix8)

6
7-1

Cord Assy
Owners Manual

Part No.

See Contrast table (2}
See Contrast table {2}
HHPOOOl
HEGOOOQ
HEA0010

BYC40P180FZK
HEGOO1 l

HKC0003

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

Mark No. Description

ié-K-éiéé)?

7-2 Warranty Card
7-3 Caution Card
7-4 Caution Card
7-5 Caution Card
7-6 Card

Part No.

HRY1087
HR P0002
HRP1 141
HRP000'1
See Contrast table (2)