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GM-X434/X1R/UC




ORDER NO.
CRT2358

BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER



GM-X434
GM-X334 X1R/UC,EW,ES
X1R/UC




CONTENTS
1. SAFETY INFORMATION ............................................2 6. ADJUSTMENT..........................................................20
2. EXPLODED VIEWS AND PARTS LIST .......................2 7. GENERAL INFORMATION .......................................20
3. SCHEMATIC DIAGRAM .............................................6 7.1 IC .........................................................................20
4. PCB CONNECTION DIAGRAM ................................12 7.2 DISASSEMBLY ...................................................22
5. ELECTRICAL PARTS LIST ........................................16 8. OPERATIONS AND SPECIFICATIONS.....................23


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. 253 Alexandra Road, #04-01, Singapore 159936

C PIONEER ELECTRONIC CORPORATION 1999 K-ZZA. JAN. 1999 Printed in Japan
GM-X434,X334



1. SAFETY INFORMATION
- GM-X434/X1R/UC, GM-X334/X1R/UC

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

This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of
California to cause cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 - Proposition 65

2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING

7



8 9
3



1 10
2 11




5

6




4



2
GM-X434,X334



NOTE:
- Parts marked by "*" are generally unavailable because they are not in our Master Spare Parts List.
- Screws adjacent to mark on the product are used for disassembly.

(1) PACKING SECTION PARTS LIST

Mark No. Description Part No.
1 Screw BYC40P180FZK
2 Polyethylene Bag HEG0011
3 Polyethylene Bag HEG0009
4 Carton See Contrast table(2)
5 Contain Box See Contrast table(2)

6 Protector HHP0047
7-1 Owner's Manual See Contrast table(2)
7-2 Owner's Manual See Contrast table(2)
* 7-3 Warranty Card See Contrast table(2)
* 7-4 Card See Contrast table(2)

* 7-5 PRC See Contrast table(2)
8 Cord Assy See Contrast table(2)
9 Cord(Remote) See Contrast table(2)
10 Cord(Power) See Contrast table(2)
11 Cord(Ground) See Contrast table(2)



(2) CONTRAST TABLE
GM-X434/X1R/UC, GM-X334/X1R/UC, GM-X334/X1R/EW and GM-X334/X1R/ES are constructed the
same except for the following:

Part No.
Mark No. Symbol and Description GM-X434/X1R/UC GM-X334/X1R/UC GM-X334/X1R/EW GM-X334/X1R/ES
4 Carton HHG0176 HHG0175 HHG0177 HHG0178
5 Contain Box HHL0176 HHL0175 HHL0177 HHL0178
7-1 Owner's Manual HRD0075 HRD0074 HRD0076 HRD0077
7-2 Owner's Manual Not used Not used Not used HRD0078
* 7-3 Warranty Card HRY1070 Not used HRY1087 Not used

* 7-4 Card Not used ARY1048 Not used Not used
* 7-5 PRC HRY0007 HRY0007 Not used Not used
8 Cord Assy Not used Not used HDW0004 HDW0004
9 Cord(Remote) Not used Not used HDE0007 HDE0007
10 Cord(Power) Not used Not used HDE4423 HDE4423

11 Cord(Ground) Not used Not used HDE4455 HDE4455




- Owner's Manual
Model Part No. Language
GM-X434/X1R/UC HRD0075 English, French
GM-X334/X1R/UC HRD0074 English, French
GM-X334/X1R/EW HRD0076 English, Spanish, German, French, Italian, Dutch
GM-X334/X1R/ES HRD0077 English, Spanish
HRD0078 Portuguese(B), Arabic




3
GM-X434,X334



2.2 EXTERIOR




4
GM-X434,X334



(1) EXTERIOR SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
1 Screw BSZ30P050FZK 26 Holder HNC8117
2 Screw(M3