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 ORDER NO. CRT2358 BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER GM-X434 X1R/UC CONTENTS 1. SAFETY INFORMATION ............................................2 2. EXPLODED VIEWS AND PARTS LIST .......................2 3. SCHEMATIC DIAGRAM .............................................6 4. PCB CONNECTION DIAGRAM ................................12 5. ELECTRICAL PARTS LIST ........................................16 6. ADJUSTMENT..........................................................20 7. GENERAL INFORMATION .......................................20 7.1 IC .........................................................................20 7.2 DISASSEMBLY ...................................................22 8. OPERATIONS AND SPECIFICATIONS.....................23 GM-X334 X1R/UC,EW,ES GM-X434/X1R/UC
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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
ORDER NO.
CRT2358
BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER
GM-X434 X1R/UC
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST .......................2
8. OPERATIONS AND SPECIFICATIONS.....................23
GM-X334 X1R/UC,EW,ES
GM-X434/X1R/UC
2
GM-X434,X334
12
7
5
4
6
3
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 repaircomplex 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 soand 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 ofCalifornia to cause cancer, birth defects or other reproductive harm. Health & Safety Code Section 25249.6 - Proposition 65
6 Panel See Contrast table(2)7 Panel See Contrast table(2)8 Lower Case HNB24169 Heat Sink See Contrast table(2)
10 Spacer HNV3975
11 Amp Unit See Contrast table(2)12 Screw BMS30P060FZK13 Screw BMS30P080FMC14 Terminal(CN902) CKF105915 Cord(CN831) See Contrast table(2)
16 Buss Bar HNC812117 Sub Heat Sink HNR152118 Sub Heat Sink HNR152219 Clamper See Contrast table(2)20 Pin Jack(CN802) See Contrast table(2)
21 Pin Jack(CN801) See Contrast table(2)22 Fuse(25A) HEK002523 Terminal(CN901) See Contrast table(2)24 Terminal(CN151) See Contrast table(2)25 Terminal(CN833) See Contrast table(2)
26 Holder HNC811727 Holder HNC811928 Screw PPZ30P060FZK29 Light Pipe Unit HXB345030 Plate Unit See Contrast table(2)
11 Amp Unit HWH0082 HWH0081 HWH0079 HWH008015 Cord(CN831) HDE5817 HDE5817 Not used HDE5817
19 Clamper HNV0003 HNV0003 Not used HNV000320 Pin Jack(CN802) CKB1013 Not used CKB1011 CKB101121 Pin Jack(CN801) CKB1020 CKB1019 CKB1019 CKB101923 Terminal(CN901) HKE0002 HKE0001 HKE0001 HKE000124 Terminal(CN151) HKE0022 HKE0023 HKE0023 HKE0023
25 Terminal(CN833) HKE0027 HKE0026 Not used HKE002630 Plate Unit HXB3553 HXB3552 HXB3552 HXB355239 Cord Not used Not used HDE0007 HDE000740 Cord Not used Not used HDE4423 HDE442341 Fuse(30A) Not used Not used HEK0030 HEK0030
42 Cord Not used Not used HDE4455 HDE445543 Screw PPZ30P060FZK Not used PPZ30P060FZK PPZ30P060FZK44 Screw PPZ30P060FZK PPZ30P060FZK Not used PPZ30P060FZK
(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:
GM-X434,X3341 2 3 4
1 2 3 4
D
C
B
A
A-a A-b
A-aA-a A-b A-b
A-b A-b A-a A-a
Large sizeSCH diagram
Guide page
Detailed page
3. SCHEMATIC DIAGRAM
3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)
Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS
LIST”.
A-aA
6 A
GM-X434,X3345 6 7 8
5 6 7 8
D
C
B
A
A-b
7A
8
GM-X434,X3341 2 3 4
1 2 3 4
D
C
B
A
A-a
A-a
A-b
9
GM-X434,X3345 6 7 8
5 6 7 8
D
C
B
A
A-a
A-a
A-b
10
GM-X434,X3341 2 3 4
1 2 3 4
D
C
B
A
A-a
A-b
A-b
A
11
GM-X434,X3345 6 7 8
5 6 7 8
D
C
B
A
A-b
A-a
A-b
12
GM-X434,X3341 2 3 4
1 2 3 4
D
C
B
A
4. PCB CONNECTION DIAGRAM
4.1 AMP UNIT
NOTE FOR PCB DIAGRAMS
1. The parts mounted on this PCB
include all necessary parts for
several destination.
For further information for
respective destinations, be sure
to check with the schematic dia-
gram.
2. Viewpoint of PCB diagrams
A
A
CapacitorConnector
P.C.Board Chip Part
SIDE A
SIDE B
AMP UNIT
GM-X434,X3345 6 7 8
5 6 7 8
D
C
B
A
13A
SIDE A
14
GM-X434,X3341 2 3 4
1 2 3 4
D
C
B
A
A
A AMP UNIT
GM-X434,X3345 6 7 8
5 6 7 8
D
C
B
A
15A
SIDE B
16
GM-X434,X334
16
5. ELECTRICAL PARTS LIST
NOTES:
- Parts whose parts numbers are omitted are subject to being not supplied.
- The part numbers shown below indicate chip components.
Chip Resistor
RS1/_S___J,RS1/__S___J
Chip Capacitor (except for CQS.....)
CKS....., CCS....., CSZS.....
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
Unit Number : HWH0082(GM-X434/X1R/UC)Unit Number : HWH0081(GM-X334/X1R/UC)Unit Number : HWH0079(GM-X334/X1R/EW)Unit Number : HWH0080(GM-X334/X1R/ES)Unit Name : Amp Unit
MISCELLANEOUS
IC 101 IC NJM2068LIC 102 IC NJM2068LIC 103 IC NJM2068LIC 104 IC NJM2068LIC 151 IC NJM2068D
IC 301 IC NJM2068LIC 302 IC NJM2068LIC 303 IC NJM2068LIC 351 IC NJM2068DIC 651 IC PA2027A
IC 801 IC NJM2068DIC 802 IC NJM2068DIC 851 IC NJM2068DIC 852 IC NJM2068DIC 951 IC UPC494C
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------
20
GM-X434,X334
7. GENERAL INFORMATION
7.1 PARTS
7.1.1 IC
6. ADJUSTMENT
There is no information to be shown in this chapter.
A O
UT
PU
T
V+
B O
UT
PU
T
B -
INP
UT
B +
INP
UTV-
A +
INP
UT
A -
INP
UT
++
1 2 3 4 5 6 7 8
NJM2068L
Part No.Symbol and Description GM-X434/X1R/UC GM-X334/X1R/UC GM-X334/X1R/EW GM-X334/X1R/ES
S 951 Switch(BFC) Not used Not used HSH-156 HSH-156VR 103 Volume 50kΩ(C) CCS1242 Not used CCS1242 CCS1242R 114 RS1/10S512J Not used RS1/10S512J RS1/10S512JR 115 Not used RS1/10S223J Not used Not usedR 214 RS1/10S512J Not used RS1/10S512J RS1/10S512J
R 215 Not used RS1/10S223J Not used Not usedR 831 RS1/10S473J RS1/10S473J Not used RS1/10S473JR 832 RS1/10S473J RS1/10S473J Not used RS1/10S473JR 833 RS1/10S473J RS1/10S473J Not used RS1/10S473JR 834 RS1/10S473J RS1/10S473J Not used RS1/10S473J
R 958 Not used Not used RS1/10S105J RS1/10S105JC 831 CEAS100M16 CEAS100M16 Not used CEAS100M16C 832 CEAS100M16 CEAS100M16 Not used CEAS100M16C 833 CEAS100M16 CEAS100M16 Not used CEAS100M16C 834 CEAS100M16 CEAS100M16 Not used CEAS100M16
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
Power source .............................................................................................................. 14.4 V DC (10.8 — 15.1 V allowable)Grounding system ............................................................................................................................................ Negative typeCurrent 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 ADimensions .......................................................................................................................... 217 (W) × 55 (H) × 250 (D) mm
[8-1/2 (W) × 2-1/8 (H) × 9-7/8 (D) in]Weight .......................................................................................................... 3.0 kg (6.6 lbs) (Leads for wiring not included)Maximum power output .......................................................................................................... 60 W × 4 / 140 W × 2 (EIAJ)Continuous power output ............................................................ 30 W × 4 (at 14.4 V, 4 Ω, 20 — 20,000 Hz, 0.08% THD)