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Pioneer GM-X334 4-channel Amplifier
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Popular Pioneer GM-X334 Manual Pages
Service Manual - Page 1
... CA 90801-1760 U.S.A. PIONEER ELECTRONIC [EUROPE] N.V. SCHEMATIC DIAGRAM 6 4. GM-X434/X1R/UC
BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER
GM-X434
GM-X334 X1R/UC,EW,ES
ORDER NO. CRT2358
X1R/UC
CONTENTS
1. PCB CONNECTION DIAGRAM 12 5. ADJUSTMENT 20 7. GENERAL INFORMATION 20
7.1 IC 20 7.2 DISASSEMBLY 22 8. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD...
Service Manual - Page 2
... of this manual. Improperly performed repairs can adversely affect the safety and reliability of California to a qualified service technician.
Health & Safety Code Section 25249.6 - GM-X434,X334
1. you are known to the state of the product and may void the warranty. WARNING
This product contains lead in solder and certain electrical parts contain chemicals which are not qualified...
Service Manual - Page 3
...Cord(Ground)
Not used
Not used HRY1070
Part No. GM-X434,X334
NOTE: - Symbol and Description 4 Carton 5 Contain Box
7-1 Owner's Manual 7-2 Owner's Manual * 7-3 Warranty Card
GM-X434/X1R/UC HHG0176 HHL0176 HRD0075 Not used
HDE4455
HDE4455
- Owner's Manual Model GM-X434/X1R/UC GM-X334/X1R/UC GM-X334/X1R/EW GM-X334/X1R/ES
Part No. Parts marked by "*" are generally unavailable because they...
Service Manual - Page 5
... Not used
HDE4455 PPZ30P060FZK PPZ30P060FZK
5 GM-X434,X334
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description
26 Holder 27 Holder 28 Screw 29 Light Pipe Unit 30 Plate Unit
Part No.
Symbol and Description 6 Panel 7 Panel 9 Heat Sink
11 Amp Unit 15 Cord(CN831)
GM-X434/X1R/UC HNB2409 HNB2415 HNR1514 HWH0082 HDE5817
Part No. Description
Part No.
1 Screw
2 Screw(M3...
Service Manual - Page 6
SCHEMATIC DIAGRAM
3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)
A
Note: When ordering service parts, be sure to refer to "EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS
LIST". A
A-a
Large size
A-a
A-b
SCH diagram
A-a A-b Guide page
A-a
A-b Detailed page
B
C
D
A 6
1
2
3
4 1
2
3
4
GM-X434,X334
3.
Service Manual - Page 12
gram.
2. The parts mounted on this PCB
A AMP UNIT
include all necessary parts for
respective destinations, be sure
to check with the schematic dia- For further information for
several destination. Viewpoint of PCB diagrams
Connector Capacitor
SIDE A
B
P.C.Board Chip Part
SIDE B
C
D
A 12
1
2
3
4
1
2
3
4
GM-X434,X334
4.
PCB CONNECTION DIAGRAM
4.1 AMP UNIT
A
...
Service Manual - Page 16
...except for CQS.....) CKS....., CCS....., CSZS.....
=====Circuit Symbol and No.===Part Name
Part No
A Unit Number Unit Number Unit Number Unit Number Unit Name
: HWH0082(GM-X434/X1R/UC) : HWH0081(GM-X334/X1R/UC) : HWH0079(GM-X334/X1R/EW) : HWH0080(GM-X334/X1R/ES) : Amp Unit
=====Circuit Symbol and No.===Part Name
Q 652 Q 653 Q 654 Q 655 Q 656
Transistor Transistor Transistor Transistor...
Service Manual - Page 20
ADJUSTMENT
There is no information to be shown in this chapter.
7.
GENERAL INFORMATION
7.1 PARTS 7.1.1 IC
NJM2068L
+ +
A OUTPUT 1 A -INPUT 2 A +INPUT 3 V- 4 B +INPUT 5 B -INPUT 6
B OUTPUT 7 V+ 8
20 GM-X434,X334
CONTRAST TABLE of AMP UNIT 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:
Symbol and Description S 951 ...
Service Manual - Page 21
PA2027A
GM-X434,X334
VCC 1
Transient voltage detector
Stby 2
Bandgap
DET1 3 DET2 4
+ - Circuit motion:on zz
50µA
zz+-
16 IN1
2V
zz+-
15 IN2
2V
zz+-
14 IN3
2V
13 Cont_V
DET_R 5 GND 6 NC 7 NC 8
-
+
4.7kΩ Bandgap:on
Switch:on
zz
+ -
2V
5.6V
0.13V
+ - Oneshot (1µsec)
SQ R
20µA
+
zz 2V
2V
-
+
12 Filter 11 Vs_out 10 TC 9 Mute_out
21
Service Manual - Page 22
... 2 pcs. Alternately tighten them into the two holes marked with an arrow. Sub Heat Sink
Heat Sink Amp Unit
Sub Heat Sink
Fig.1
22 Removing the Panel Unit(not shown) 1. Remove the six screws. .... Remove the Case. - Remove the two Panel Units.
-
GM-X434,X334
7.2 DIAGNOSIS 7.2.1 DISASSEMBLY
- Remove the nine screws. 2. Removing the Amp Unit(Fig.1)
Remove the twelve screws.
Service Manual - Page 23
... . GM-X434,X334
23 If the output is low even when the volume of the speaker that is switched on. Power Indicator
The power indicator lights when the power is connected to be adjusted only when the LPF/HPF select switch is turned up , turn these controls clockwise. 8.
OPERATIONS AND SPECIFICATIONS
8.1 OPERATIONS
Setting the Unit
Gain Control
Adjusting the gain controls...
Service Manual - Page 24
... insulation of the power supply wire to tap from the antenna, antenna cable and tuner.
• Speakers to be exceeded, causing overheating. input: Min. 140 W Nominal input: Min. 70 W Max. GM-X434,X334
24
Connecting the Unit
CAUTION
• Remove the negative (-) terminal of the battery to avoid the risk of the car stereo (SYSTEM REMOTE CONTROL).
Service Manual - Page 25
... current drawn by multiple power amplifiers.
25 GM-X434/X1R/UC, GM-X334/X1R/UC, GM-X334/X1R/EW, GM-X334/X1R/ES
Specifications
Power source ...14.4 V DC (10.8 - 15.1 V allowable) Grounding system ...Negative type Current consumption ...18 A (at continuous power, 4 Ω) Average current drawn* ...5.5 A (4 Ω for four channels)
10 A (4 Ω for two channels) Fuse ...25 A Dimensions ...217...
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