Pioneer GM-D8704XEVUC User manual

ORDER NO.
PIONEER CORPORATION 28-8, Honkomagome 2-chome, Bunkyo-ku, Tokyo 113-0021, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 2 Jalan Kilang Barat, #07-01, Singapore 159346
PIONEER CORPORATION 2019
GM-D8704/XEVUC
CRT6389
BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER
GM-D8704 /XEVUC
GM-DX874/XEVUC
GM-D8704/XEVEW5
GM-DX874/XEVEL5
GM-D8704/XEVES
K-ZZZ JAN. 2019

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A
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SAFETY INFORMATION
CONTENTS
SAFETY INFORMATION..........................................................................................................................................................2
1. SERVICE PRECAUTIONS ....................................................................................................................................................3
1.1 SAFETY PRECAUTIONS ...............................................................................................................................................3
1.2 NOTES ON DISASSEMBLY / ASSEMBLY......................................................................................................................3
1.3 NOTES ON REPLACING PARTS ...................................................................................................................................3
1.4 OTHERS .........................................................................................................................................................................4
2. SPECIFICATIONS .................................................................................................................................................................5
2.1 SPECIFICATIONS...........................................................................................................................................................5
3. BASIC ITEMS FOR SERVICE...............................................................................................................................................5
3.1 CHECK POINTS AFTER SERVICING............................................................................................................................5
3.2 JIGS LIST .......................................................................................................................................................................5
4. BLOCK DIAGRAM.................................................................................................................................................................5
5. DIAGNOSIS...........................................................................................................................................................................6
5.1 CONNECTOR FUNCTION DESCRIPTION....................................................................................................................6
6. SERVICE MODE ...................................................................................................................................................................6
7. DISASSEMBLY......................................................................................................................................................................7
8. EACH SETTING AND ADJUSTMENT ..................................................................................................................................8
9. EXPLODED VIEWS AND PARTS LIST.................................................................................................................................9
9.1 PACKING SECTION .......................................................................................................................................................9
9.2 EXTERIOR SECTION...................................................................................................................................................11
10. SCHEMATIC DIAGRAM ....................................................................................................................................................13
10.1 P.C.B TOTAL ASSY .....................................................................................................................................................13
11. PCB CONNECTION DIAGRAM ........................................................................................................................................14
11.1 P.C.B TOTAL ASSY .....................................................................................................................................................14
12. ELECTRICAL PARTS LIST ...............................................................................................................................................16
Where in a manufacturer’s service documentation, for example in circuit diagrams or lists
of components, a symbol is used to indicate that a specific component shall be replaced only
by the component specified in that documentation for safety reasons, the following symbol shall
be used:
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 may contain a chemical known to the State of California to cause cancer, or birth defects or
other reproductive
harm.
Health & Safety Code Section 25249.6 - Proposition 65

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1. SERVICE PRECAUTIONS
1.1 SAFETY PRECAUTIONS
1.2 NOTES ON DISASSEMBLY / ASSEMBLY
1.3 NOTES ON REPLACING PARTS
BRACKET
BRACKET
Side B
A
P.C.B TOTAL ASSY
-You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should
keep the safety during servicing by following the safety instructions described in this manual.
-part and BRACKET becomes hot areas. Be careful not to burn yourself.
-Before disassembling the unit, be sure to turn off the power. Unplugging and plugging the connectors during power-on
mode may damage the ICs inside the unit.
-Please be sure to conduct line process to original status if you make assembling after repair.
-Please be careful of not to apply static charge onto integrated circuits, etc, when you conduct repair work.
Especially, please use soldering iron with its tip grounded.
Also, please use a pair of tweezers with static charge protection capability if there is the possibility of contacting to device
terminals, and avoid the use of metal-made tweezers.
-When the parts that are fixed by BRACKET (IC40, IC41, IC44, D42, D43, D44, D45, Q20, Q21, Q22, Q23, Q24, Q25,
Q515, Q516, Q517 and Q518) replace, follow the below procedure.
Caution : While the picture shown is slightly different from this model in shape, the replacing procedure is the same.

4GM-D8704/XEVUC
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12 3 4
1.4 OTHERS
Put the board on a block-shaped table.
Put the paper between the board and the base, and outlines
these parts on it.
Set the replacing parts to fit this line.
Adjust the height of the replaced parts to match the board
and fix it with solder.
Apply silicon grease (GEM1057) to the backside of it.
-Notes on soldering
For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit.
Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs
accompanied by reworking of soldering.

5
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2. SPECIFICATIONS
2.1 SPECIFICATIONS
3. BASIC ITEMS FOR SERVICE
3.1 CHECK POINTS AFTER SERVICING
3.2 JIGS LIST
4. BLOCK DIAGRAM
For all items except the backup current, refer to the Owner's Manual.
Backup current......................... 1 mA or less
To keep the product quality after servicing, please confirm following check points.
No. Item to be confirmedProcedures
1The customer complaint must not be reappeared.
Audio and operations must be normal.
Confirm whether the customer complaint has
been solved.
Item to be checked regarding audio
Distortion
Noise
Volume too low
Volume too high
Volume fluctuating
Sound interrupted
2Audio and operations must be normal.
Check the output sound.
3No scratches or dirt on its appearance after
receiving it for service.
Appearance check
See the table below for the items to be checked regarding audio:
Name Grease No. Remarks
Grease GEM1057 Applying to BRACKET
Bond GYL1006 Applying to P.C.B TOTAL ASSY
-Lubricants and Glues List
There is not information to be shown in this chapter.

6GM-D8704/XEVUC
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5. DIAGNOSIS
5.1 CONNECTOR FUNCTION DESCRIPTION
6. SERVICE MODE
Front
-GM-D8704/XEVUC, GM-DX874/XEVUC, GM-DX874/XEVEL5, GM-D8704/XEVES
-GM-D8704/XEVEW5
Rear
Front
Rear
There is not information to be shown in this chapter.

7
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7. DISASSEMBLY
1Remove 6 pcs screw and then remove the
Chassis. 1 1 1
1 1 1
Fig. 1
Note:
While the photograph shown is slightly different from this model in shape, the disassembly procedure is the same.
-Removing the Chassis (Fig. 1)
1
2
3
Remove 5 pcs screw and remove
BRACKET.
Remove a screw.
Remove 13 pcs screw and then remove
the P.C.B Total Assy.
Fig. 2
1 1 1
3
3
-Removing the P.C.B Total Assy (Fig. 2)
1 1
3
2
3
3
3
3
3 3
3
3
3
3
Chassis
P.C.B Total Assy
BRACKET
BRACKET

8GM-D8704/XEVUC
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8. EACH SETTING AND ADJUSTMENT
:GYL1006
Bonding Position
There is not information to be shown in this chapter.

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9. EXPLODED VIEWS AND PARTS LIST
9.1 PACKING SECTION
(1) PACKING SECTION PARTS LIST
NOTES : Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List.
The >mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
Screw adjacent to mark on the product are used for disassembly.
For the applying amount of lubricants or glue, follow the instructions in this manual.
(In the case of no amount instructions,apply as you think it appropriate.)
"
Except GM-D8704/XEVES
Except GM-D8704/XEVEW5
Except GM-D8704/XEVEW5
Except GM-D8704/XEVEW5
1
2
3
4
6
9
7
10
11
8
12
10
Mark No. Description Part No.
1-1 Owner's Manual See Contrast table (2)
1-2 Owner's Manual See Contrast table (2)
1-3 Owner's Manual See Contrast table (2)
1-4 Owner's Manual See Contrast table (2)
1-5 Owner's Manual See Contrast table (2)
1-6 Owner's Manual See Contrast table (2)
1-7 Owner's Manual See Contrast table (2)
1-8 Owner's Manual See Contrast table (2)
1-9 Owner's Manual See Contrast table (2)
1-10 Owner's Manual See Contrast table (2)
1-11 Owner's Manual See Contrast table (2)
1-12 Owner's Manual See Contrast table (2)
* 2 Warranty Card See Contrast table (2)
3
Speaker Input Wire with RCA Pin Cord L008240022001S
4 Hexagonal Wrench (S: 3 mm) 1580210036000V
5 • • • • •
6
Bass Boost Remote Control Cord (5 m) See Contrast table (2)
7 Screw,Tapping (3 mm x 10 mm) See Contrast table (2)
8 Bass Boost Remote Control See Contrast table (2)
9 Screw,Tapping (4 mm x 18 mm) B010440183B10V
10 Cushion,Snow 6230214784000V
11 Box,Gift See Contrast table (2)
12 Box,Outer Carton See Contrast table (2)
Mark No. Description Part No.

10 GM-D8704/XEVUC
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(2) CONTRAST TABLE
GM-D8704/XEVUC, GM-DX874/XEVUC, GM-D8704/XEVEW5, GM-DX874/XEVEL5 and GM-D8704/XEVES are
constructed the same except for the following:
Owner's Manual
Mark No. Description GM-D8704
/XEVUC
GM-DX874
/XEVUC
GM-D8704
/XEVEW5
GM-DX874
/XEVEL5
GM-D8704
/XEVES
1-1 Owner's Manual 5707000012990V 5707000012990V Not used Not used Not used
1-2 Owner's Manual 5707000013000V 5707000013000V Not used Not used Not used
1-3 Owner's Manual Not used Not used 5707000012950V Not used Not used
1-4 Owner's Manual Not used Not used 5707000012960V Not used Not used
1-5 Owner's Manual Not used Not used 5707000012970V Not used Not used
1-6 Owner's Manual Not used Not used 5707000012980V Not used Not used
1-7 Owner's Manual Not used Not used Not used Not used 5707000013010V
1-8 Owner's Manual Not used Not used Not used Not used 5707000013020V
1-9 Owner's Manual Not used Not used Not used 5707000013100V Not used
1-10 Owner's Manual Not used Not used Not used 5707000013110V Not used
1-11 Owner's Manual Not used Not used Not used 5707000013120V Not used
1-12 Owner's Manual Not used Not used Not used 5707000013130V Not used
* 2 Warranty Card 5727000000581V 5727000000581V 5727000000590S 5727000000590S Not used
6
Bass Boost Remote Control Cord (5 m) L308121040010S L308121040010S Not used L308121040010S L308121040010S
7 Screw,Tapping
(3 mm x 10 mm)
B010430103B10V B010430103B10V Not used B010430103B10V B010430103B10V
8 Bass Boost Remote Control 7025CX1801100 7025CX1801100 Not used 7025CX1801100 7025CX1801100
11 Box,Gift 6007213660060V 6007213660090V 6007213660050V 60072136600A0V 6007213660070V
12 Box,Outer Carton 6027211090060V 6027211090090V 6027211090050V 60272110900A0V 6027211090070V
Part No. Language
5707000012990V English, French
5707000013000V Spanish
5707000012950V English, French
5707000012960V Italian, Spanish
5707000012970V German, Dutch
5707000012980V Russian
5707000013010V English, Spanish
5707000013020V Portuguese(B), Arabic
5707000013100V English, French
5707000013110V Italian, Spanish
5707000013120V German, Dutch
5707000013130V Russian, Arabic

11
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9.2 EXTERIOR SECTION
10
A
22
23
21
24
25
1
3
6
6
6
7
5
10
10
10
11
14
19
20
20
20
15
15
13
8
12 10
10
10
10
9
4
2

12 GM-D8704/XEVUC
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(1) EXTERIOR SECTION PARTS LIST
(2) CONTRAST TABLE
GM-D8704/XEVUC, GM-DX874/XEVUC, GM-D8704/XEVEW5, GM-DX874/XEVEL5 and GM-D8704/XEVES are
constructed the same except for the following:
Mark No. Description Part No.
1 Heat Sink Assy See Contrast table (2)
2 Sheet 1210213589000V
3 Sheet 1210213549000V
4 Sheet 1210213559000V
5 P.C.B Total Assy See Contrast table (2)
6 Screw,Tap Tite B020030103B10SV
7 Chassis 3207215806200V
8 Chassis See Contrast table (2)
>9 Fuse,Auto (30 A) G655303320110S
10 Screw,Tap Tite B020030081W10SV
11 Screw,Tap Tite B020030081B10SV
12 Screw 1500001206010SV
13 Bracket 4010216766200V
14 Bracket 4010216766100V
15 Screw 1507041146010SV
16 • • • • •
17 • • • • •
18 • • • • •
19 Chassis 3200215756000V
20 Screw,Tap Tite B020030103B10SV
21 Bass Boost Remote Control See Contrast table (2)
22 Case See Contrast table (2)
23 Chassis See Contrast table (2)
24 Knob See Contrast table (2)
25 Screw,Tap Tite See Contrast table (2)
Mark No. Description Part No.
Mark No. Description GM-D8704
/XEVUC
GM-DX874
/XEVUC
GM-D8704
/XEVEW5
GM-DX874
/XEVEL5
GM-D8704
/XEVES
1 Heat Sink Assy 7025CX1801115 7025CX1801117 7025CX1801115 7025CX1801117 7025CX1801115
5 P.C.B Total Assy 7025CX1806020 7025CX1807010 7025CX1806010 7025CX1807020 7025CX1806030
8 Chassis 3207215786100V 3207215786100V 3207215786000V 3207215786100V 3207215786100V
21 Bass Boost Remote Control 7025CX1801100 7025CX1801100 Not used 7025CX1801100 7025CX1801100
22 Case 3030212091000V 3030212091000V Not used 3030212091000V 3030212091000V
23 Chassis 3207215826000V 3207215826000V Not used 3207215826000V 3207215826000V
24 Knob 5080213151000V 5080213151000V Not used 5080213151000V 5080213151000V
25 Screw,Tap Tite B020026103B10V B020026103B10V Not used B020026103B10V B020026103B10V

13
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10. SCHEMATIC DIAGRAM 10.1 P.C.B TOTAL ASSY
10. SCHEMATIC DIAGRAM
Symbol indicates a resistor.
No differentiation is made between
chip resistors and discrete resistors.
NOTE :
Symbol indicates a capacitor.
No differentiation is made between
chip capacitors and discrete capacitors.
NM : No Mount
The >mark found on some component parts
indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of
identical designation.
Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or
"ELECTRICAL PARTS LIST".
A
P.C.B TOTAL ASSY
A A
4CH
AL-
AR-
AL+
AR+
AL-
BL
2CH
UV/OV DETECT
BR-
AR+
BR
AL
AR
BL+
BL-
BR+
AL+
AR-
BASSBOOST
REMOTE
SCREW
BR-
BL+
BR+
BL-
SCREW
< B_BASS BOOST >
DCOFFSET
GND
SCREW
REMOTE
Vbat(+14.4V)
-1.5dB
-3dB
A-CH
B-CH
POWER: BLUE
PROTECT: RED
LED INDICATOR
UVP
TRANS
FET
HEAT SINK
TH PT
BLRD
R535
4K7
R640
27K-2012
C650
1N/50V
R650
4K7
R654
51K
R652
51K
R539
5K6
R518
5K6
R522
1K8
C593 1N/50V
1N/50V
C589
R613
5K1
R642
7K5
R631
27K
C526
10N/50V
R552
10K
R548
10K
C520
10N/50V
R516
4K7
R515 10K
R517
10K
R520
4K7
R553
10K
789
VR501-C
C50K*4
10 11 12
VR501-D
C50K*4
123
VR501-A
C50K*4
R521
10K
C541
10N/50V
R549
4K7
R519
4K7 C519
10N/50V
C516
47/25V
R527
1K-F
C591
NPO 2N2/50V
C592
NPO 2N2/50V
R592
120-F
R562
10
C544
NPO 2N2/50V
R561
120-F
C533
NPO
2N2/50V
R533
47K-F
D516
LBAS16HT1G
R677
1K
C590 NPO 2N2/50V
C594
NPO 2N2/50V
C562
100N/50V
C587
100N/50V
C588
22U/6.3V-2012
C545
1N/50V
C531
NPO 2N2/50V
R672
4K7
ZD500
LUDZ9.1B
R674
4K7
R673
47K
R671
22K-F
R615
4K7
R614
5K1
C601
22/16V-3216
R618
7K5
R617
4K7
R622 27K
R620 4R7-2012
C596
22/16V-3216
R648
27K
R649
10K
D514
LBAS16HT1G
R644
10K
R643 4K7
R632
27K
C599
100N/50V
D512
LBAS16HT1G
C598
22/16V-3216
R627
10K
R625
4K7
R626 7K5
D510
LBAS16HT1G
D511
LBAS16HT1G
D509
LBAS16HT1G
R619
4R7
R670 1-2012
R641
27K-2012
R639
27K-2012
R6671-2012
C644
100N/100V-2012
R669 1-2012
C642
100N/100V-2012
C641
100N/100V-2012
C640
100N/100V-2012
C639
100N/100V-2012
R668
1-2012
C638
100N/100V-2012
R658
4R7/3W-RADIAL
R655
4R7/3W-RADIAL
C625
10N/200V-2012
C635
10N/200V-2012
CHASSIS_GND3
R534
4K7
456
VR501-B
C50K*4
C534
47/25V
R590
120-F
R537
47K-F
R560
120-F
R676
4K7
Q524
KTC3875Y
C529
1N/50V
Q523
KTC3875Y
R616
5K6
C595
1UF/25V-2012
R647
7K5
D508
LBAS16HT1G
C645 100N/100V-2012
C643
100N/100V-2012
R653
51K
C603
470N-M/250V
R651
51K
C602
470N-M/250V
C608
330N/50V-2012
C609
330N/50V-2012
C606
330N/50V-2012
C607
330N/50V-2012
C616
330N/50V-2012
C614
330N/50V-2012
C623
10N/200V-2012
C622
10N/200V-2012
C604
470N-M/250V
C605
470N-M/250V
R543
47K
R612
47K
C514
68N-M/100V
ZD502
LUDZ22B
R675
1K-F
C600
22/16V-3216
C586
22U/6.3V-2012
R589
10
C552
NPO 2N2/50V
C597
22/16V-3216
R621
10K
L503
10UH
R633
10
Q519
IRF6775TRPBF
R646
4R7
L502
10UH
R645
27K-2012
R657
4R7/3W-RADIAL
R634
10
Q520
IRF6775TRPBF
R637
4R7
R638
4R7
L501
10UH
R628
4R7
R656
4R7/3W-RADIAL
R629
10
Q517
IRF6775TRPBF
L500
10UH
R624
10
Q516
IRF6775TRPBF
C542
68N-M/100V
ZD501
LUDZ22B
C621
330N/50V-2012
C619
330N/50V-2012
C617
330N/50V-2012
C615
330N/50V-2012
C620
330N/50V-2012
C618
330N/50V-2012
C648
100N/100V-2012
D513
LBAS16HT1G
D515
LBAS16HT1G
R635
10
C649
100N/100V-2012
R636
10
Q521
IRF6775TRPBF
Q522
IRF6775TRPBF
C612
330N/50V-2012 C610
330N/50V-2012
C613
330N/50V-2012 C611
330N/50V-2012
C646
100N/100V-2012
C647
100N/100V-2012
R623
10
R630
10
Q515
IRF6775TRPBF
Q518
IRF6775TRPBF
1
2
3
4
JK503
WB04-34CDBH
123456 78910
11 12
13
14
15
16
17
18
19
20
21
22
23
24
252627282930313233343536
37
38
39
40
41
42
43
44
45
46
47
48
49
IC516
IRS2093MPbF
COMP4
IN4
GND
VSS
VAA
IN2
COMP2
IN1
COMP1
VB1
CSH1
LO1
LO2
VCC2
NC
NC
COM2
LO4
LO3
CSH3
VB3
HO3
VS3 VS4
HO4
VB4
CSH4
NC
COM
VCC
DT
OCSET
VREF
COMP3
IN3
CSD
NC DS NC NC NC NC CSH2 VB2 HO2 VS2 VS1 HO1
1
2
3
4
JK501
WB04-34CDBH
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC502
NJM4580CG
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC6
NJM4580CG
FB503
NM
FB502
NM
FB501
NM
R547
8K2
C4
100N/50V
1
2
3
4
CN51
B551N-44GF-M009
R546
820
4
5
6
VR53-B
10KB
4
3
2
1
CN52
B551N-44GF-M009
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC16
NJM4580CG
JK1-C
RCA-613F
JK1-A
RCA-613F
JK1-B
RCA-613F
C45 470P/50V C46 470P/50V C47 470P/50V C48 470P/50V
R79
22K
R93
470
R105
10K
C69
470P/50V
R115
8K2
R116
15K
R121
56K
R122
10K
FB106
NM
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC51
NJM4580CG
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC8
NJM4580CG
C56
22/50V
R106
300
R109
300
R127
2K2
R128 220
R129
220
R130
2K2
R132
10K
R133
8K2
R134
15K
R135
10K
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC9
NJM4580CG
C68
68N-M/100V
C93
100N/50V
C94
10N/50V
C95
68N-M/100V
C84
330P/50V
R101
2K2-F
R102
10K
C96
10N/50V
C97
10N/50V
R104
1K8
R107
1K-F
C98
330P/50V
R125
2K2-F
R136
10K
R140
1K8
R151
1K-F
C107 470P/50V C108 470P/50V C109 470P/50V C110 470P/50V
C133
330P/50V
R199
2K2-F
R200 10K
R201
1K8
R202
1K-F
C136
330P/50V
R203
2K2-F
R204
10K
C523
100/16V
C524
100N/50V
R536
180K
C548
470/16V
C549
100N/50V
C540
180N-M/100V
R525
18K
C547
1/50V
R206
680
R207
3K3
R526
0
R530
1K8
C137
22/50V
C543
100P/50V
C138
10N/50V
C546
2.2/50V
R532
10K
R528
180K
1
2
3
4
5
6
78
9
10
11
12
13
14
IC59
NJM2172V
+OPinA
-OPinA
OPoutA
EVRouA
VcntA
VcntB
V+
+inB
-inB
outB
EoutB
REFin
Vref
GND
C139
100/16V
R210
10K
C140
22/50V
C141
180N-M/100V
R531
10K
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC15
NJM4580CG
C14
180N-M/100V
R13
1K8
R14
18K
R23
3K3
R24
0
C19
22/50V
C31
100P/50V
C32
10N/50V
R62
10K
R65
180K
R70
10K
C33
22/50V
C34
180N-M/100V
R71
10K
C40
100/16V
R40
22/1W-RADIAL
CHASSIS_GND5
Q3
KTC4379
R17
100
Q11
KTA1666
Q21
IRF3205
R30
47
R39
10/1W-RADIAL
C6
100N/100V-2012
C7
2200uF/50V
C57
2200uF/50V
C59
2200uF/50V
R45
5K6/3W-RADIAL
CHASSIS_GND2
Q10
KTC4379
Q7
KTA1666
R31
100
R33
47
Q20
IRF3205
R38
10/1W-RADIAL
C30
10N/200V-2012
C13
10N/200V-2012
C21
1N/250V-2012
C26
100N/100V-2012
C27
2200uF/50V
C58
2200uF/50V
C60
2200uF/50V
R46
5K6/3W-RADIAL
R48
2K2
R50
4K7
R57 2K2
R58
4K7
D60
LBAS16HT1G
R61
56K
D61
LBAS16HT1G
R64
22K
R69
47
C83
100N/50V
R154
10-2012
R66
1K
R18
12K
R67
7K5
Q65
MMBT5551
C67
100/25V
Q66
MMBT5551
Q16
IRF3205
R155
47
R156
47
Q17
IRF3205
R6
15K
C1
220/16V
C3
NM
NM
C22
C10
NM
R5
1K8
R2
6K2
R91
5K1
R7
22K
R8
22K
Q90
KTA1504Y
Q91
KTA1504Y
R9
22K
Q86
KRA105S
R10
2K2
1
2
3
D70
KDS121
R11
4K7
Q73
KRC111S
R73
8K2
R15
1M
C11
100/16V
R16
3K9
R19
47K
Q74
KTA1504Y
R20
10K
R21
10K
R22 22K
R25
2K2
C15
100N/50V
R26
22K
Q5
MMBT5551
R27
10K
R28
4K7
R29
1K-3216
C16
10/50V
R56
2K2-3216
L7
50uH
CHASSIS_GND1
R35
22K
Q93
KRC102S
R36
22K
Q72
KTA1504Y
R37
NM
R74
4K7
R43
4K7
C17
1UF/25V-2012
C20
100/25V
R44
47K
R51
4K7
C29
100N/50V
D71
LBAS16HT1G
C35
NM
R52 47K
R55
820-3216
R83
100K
R84
47K
Q1
MMBT5551
C37
10N/50V-2012
C38
NM
C39
NM
C65
NM
C66
10/50V-NP
C70
10N/50V-2012
N5402
D11
R90
22K
Q87
KRA105S Q71
KTA1504Y
R171
4K7
Q70
KRA105S
R177
10K
R179
4K7
R180
4K7
R182
47K
R186
22K
C71
NM
Q2
MMBT5551
R205
4K7-3216
ZD3
LUDZS7.5BT1G
Q6
MMBT5551
ZD2
LUDZS15BT1G
C73
10N/50V-2012
ZD7
LUDZS9.1BT1G
Q8
KRC111S
Q4
KTA1504Y
ZD1
LUDZS8.2BT1G
Q9
MMBT5551
C143
10N/50V-2012
R211
47K
R212
10K
12
3
Q14
KTA1040D
123456 78
9
10
11
121314
15
16
IC2
TL494IDR
1IN+ 1IN- FB DTC CT RT GND C1
VCC
2IN+
2IN-
REF
O_CTL
E2
C2
E1
C144
1N/50V
C145
1000uF/25V
C146
1000uF/25V
C147
1000uF/25V
C148
1000uF/25V
BL-BB5UB201G-FB3.2-LC6
R215
22K
C152
22N/50V
C153
1N-M/100V
R216 4K7
D62
LBAS16HT1G
1
2
3
D8
KDS121
D4
MBRF20200CTR
D5
MBRF20200CT
Q35
KTC2875B
Q12
KTC2875B Q13
KTC2875B
Q15
KTC2875B
C82
100N/50V
C12
10/50V
C28
100N/50V
C81
10/50V
*C36
10/50V
R227
6K8-3216
C74
10N/50V
C142
47/25V
C154
47/25V
IC3
LM79L05F
IC18
LM78L05F
C155
330N/50V-2012
C156
10N/50V
*C157
10/50V R231
5K1-3216
C158
47/25V
C159
10N/50V
C160
47/25V
D10
LBAS16HT1G
D11
LBAS16HT1G
C161
10N/50V
ZD6
LUDZS16BT1G
R233
10/1W-RADIAL
Q50
KTA1046
Q51
KTC2026
C162
330N/50V-2012
ZD4
LUDZS16BT1G
R234
10/1W-RADIAL
C699
22/50V
C697
47/25V
C700
NM
12
3
Q558
KTC2026
R730
10/1W-RADIAL
C684
47N/50V
ZD58
LUDZS11BT1G
R729
4K7-3216
R42
10K-D
R47
10K-D
C24
7P/50V
D6
LBAS16HT1G
D9
LBAS16HT1G
D15
LBAS16HT1G
D16
LBAS16HT1G
R54
47K
R60
100K
Q27
KRC111S
C5
4.7/50V
Q30
KRA105S
R75
10K-D
C8
10N/50V
C9
4.7/50V
C23
10N/50V
R76
10K-D
C24
47P/50V
C25
10N/50V
C41
33/50V
R77
47K
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC19
NJM4580CG
R78
4K7
R80
2K7
Q34
KTC2875B
R81
4K7
R92
4K7 Q36
KTC2875B
C42
10N/50V
R94
2K7
R114
22K
C75
470P/50V
FB6
NM
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC20
NJM4580CG
R119
10K-D
R120
10K-D
C76
47P/50V
D21
LBAS16HT1G
D22
LBAS16HT1G
D23
LBAS16HT1G
D24
LBAS16HT1G
R126
10K-D
C89
33/50V
R117
470
R118
10K-D
C77
47P/50V
C87
10N/50V
C91
4.7/50V
R123
47K
R124
4K7
C78
22/50V
C43
10N/50V
C44
10N/50V
R95
4K7
R96
5K6
R97
5K6
C49
10N/50V
R98
10K
R99
10K
C50
10N/50V
R100
4K7
R103
10K
R108
10K
R110
4K7
R111
10K
789
VR1-C
C50K*4
10 11 12
VR1-D
C50K*4
123
VR1-A
C50K*4
R112
10K
C51
10N/50V
R113
4K7
R131
4K7 C52
10N/50V
C53
47/25V
R137
4K7
456
VR1-B
C50K*4
C54
47/25V
C55
68N-M/100V
C72
68N-M/100V
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC4
NJM4580CG
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC5
NJM4580CG
R138
22K
R139
470
R141
10K
C86
470P/50V
R142
8K2
R143
15K
R145
10K
FB1
NM
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC7
NJM4580CG
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC10
NJM4580CG
C88
22/50V
R146
300
R147
300
R148
2K2
220
R149
R150220
R152
2K2
R153 10K
R158
8K2
R159
15K
R160
10K
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC11
NJM4580CG
C90
68N-M/100V
C92
10N/50V
C99
100N/50V
C100
68N-M/100V
C101
10N/50V
C102
10N/50V
Q28
KTC2875B
Q29
KTC2875B
Q31
KTC2875B
Q32
KTC2875B
R162
10K-D
R163
10K-D
C103
47P/50V
D7
LBAS16HT1G
D12
LBAS16HT1G
D13
LBAS16HT1G
D14
LBAS16HT1G
R166
10K-D
C105
10N/50V
C111
10N/50V
R167
10K-D
C112
47P/50V
C113
10N/50V
C114
33/50V
R168
47K
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC12
NJM4580CG
R169
4K7
R170
2K7
Q38
KTC2875B
R172
4K7
R173
4K7 Q39
KTC2875B
C115
10N/50V
R174
2K7
R175
22K
C116
470P/50V
FB2
NM
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC13
NJM4580CG
R176
10K-D
R178
10K-D
C117
47P/50V
D17
LBAS16HT1G
D18
LBAS16HT1G
D19
LBAS16HT1G
D20
LBAS16HT1G
R181
10K-D
C118
33/50V
R183
470
R184 10K-D
C119
47P/50V
C120
10N/50V
R185
47K
R187
4K7
C122
22/50V
C123
10N/50V
C124
10N/50V
R188
220K
R189
220K
C61
NM
C62
NM
C63
NM
C64
NM
C85
NM
C104
NM
C125
NM
C126
NM
FB3
NM
FB4
NM
FB5
NM
FB7
NM
1
2
3
POWER2
WB03-3CDBH
C127
10N/50V
C128
10N/50V
R32
680
1
2
3
4
5
6
VR2
B10K*2
1
2
3
4
5
6
VR3
B10K*2
1234
5678
SW1
CSS-2319
D25
LBAS16HT1G
D26
LBAS16HT1G
R34
33K
1234
5678
SW2
CSS-2319
1
2
3
4
5
6
78
9
10
11
12
13
14
IC1
LM2901DR
1OUT
OUT2
VCC
2IN-
2IN+
1IN-
1IN+
OUT3
OUT4
GND
4IN+
4IN-
3IN+
3IN-
TH1
PRF18BB471QB5RB
D80
LBAS16HT1G
R208
4K7
Q18
MMBT5551
R3
8K2
TH2
DHPTHF1608471P95T R82
4K7
Q19
MMBT5551
R86
8K2
TH3
NTC-5K
R89
470
Q26
MMBT5551
R157
8K2
R217
11K
R218
16K
R219
8K2
R220
2K7
R221
100K
R222
100K
R4
15K
R87
68K
R88
47K
R161
10K
R223
10K
R224
39K
R225
330K
C80
100N/50V
R41
10K
C106
2U2/25V
R53
22K
R59
22K
R144
NM
R164
22K
C651
22/16V-3216
D2
LBAS16HT1G
D3
LBAS16HT1G
D90
LBAS16HT1G
1
2
3
4
5
6
SW503
CSS-2219
C121
47/25V
Q22
KTC2875B
R49
18K
Q23
KTC2875B R63
18K
Q24
KTC2875B
R165
18K
Q25
KTC2875B R190
18K
R191
220K
Q60
KRC102S
Q61
KTC3875Y
D27
LBAS16HT1G
W4 W3
W2
W1
1
2
3
4
5
6
7
T1
T4016
D28
LBAS16HT1G
R192
13K
R193 1K1
C129
100P/50V
R194
13K
R195
1K1
C130
100P/50V
R196
13K
R197
1K1 C131
100P/50V
R198
13K
R2091K1
C132
100P/50V
-
-
CM2
+
CM1
+
1
2
3
45
6
7
8
IC17
NJM4580CG
C150
100P/50V
C151
10N/50V
R213
10K
C163
10N/50V
R214
10K
R228
10K
R232
10K
C164 100P/50V
C168
10N/50V
C169
10N/50V
R247
NM
2U2/16V
C170
R246
0
R245
22K
R244
22K
R243
1K5-3216
ZD5
LUDZS5.1BT1G
R241
0
R242
0
C134
22/50V
C135
22/50V
C680
220P/200V-2012
R680
2R2-J-3216
R681
2R2-J-3216
C681
220P/200V-2012
C682
220P/200V-2012
R682
2R2-J-3216
R683
2R2-J-3216
C683
220P/200V-2012
C685
220P/200V-2012
R685
2R2-J-3216
R686
2R2-J-3216
C686
220P/200V-2012
C687
220P/200V-2012
R687
2R2-J-3216
R688
2R2-J-3216
C688
220P/200V-2012
R235
10K 10K
R236
Q33
NM
R12
NM
R72
NM
D29
NM
C79
100N/50V
L1
NM
R1
0
R85
0
R237
0
C630
22/16V-3216
C631
22/16V-3216
C632
22/16V-3216
C633
22/16V-3216
R226
820-3216
R229
150/1W-RADIAL
R230
150/1W-RADIAL
C180
10N/50V
C183
10N/50V
FUSE1
FUSE1
30A
30A
R266
0
R267
0
R268
0
R269
0
R270
0
R271
0
R272
0
R273
0
R249
0
R248
0
R238
0
R239
0
R254
0
R255
0
R251
0
R250
0
R252
0
R253
0
R68
220K
R240
3K3
R256
220K
R257
3K3
R258
0
R259
0
D47
NM
D30
LBAS16HT1G
D31
LBAS16HT1G
D32
LBAS16HT1G
D33
LBAS16HT1G
D34
LBAS16HT1G
D35
LBAS16HT1G
D36
LBAS16HT1G
D37
LBAS16HT1G
R260
15K
C18
2U2/25V
C149
100N/50V
+5V
-5V
LPF_3 HPF_3 FIL-OFF_3
LPF_4
HPF_4
FIL-OFF_4
LPF_1
HPF_1
FIL-OFF_1
LPF_2
HPF_2
FIL-OFF_2
GNDA
CH BRIDGE
Rch BRIDGE
Lch BRIDGE
>
>
RCA INPUT A
RCA OUTPUT A
SPEAKER OUTPUT
POWER
GND
S.CONTROL
RCA INPUT B
POWER/PROTECT INDICATOR
B_GAIN
A_GAIN
INPUT SELECT
A_FREQ
B_FREQ
A_LPF/HPF
B_LPF/HPF
BASS BOOST
REMOTE CONTROL BASS BOOST REMOTE

14 GM-D8704/XEVUC
12 3 4
A B C D E F
12 3 4
11. PCB CONNECTION DIAGRAM 11.1 P.C.B TOTAL ASSY
Capacitor
Connector
P.C.Board Chip Part SIDE B
SIDE A
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
11.PCB CONNECTION DIAGRAM
SIDE A
A
A
A
P.C.B TOTAL ASSY
FRONT
POWER/PROTECT
INDICATOR
B_FREQ
B_GAIN
RCA OUTPUT
RCA INPUT A
RCA INPUT B
A_GAIN
INPUT SELECT
B_LPF/HPF
A_LPF/HPF
A_FREQ
>
>
POWER
SPEAKER OUTPUT
GND
S.CONTROL
FUSE1 30A
FUSE1 30A
BASS BOOST
REMOTE
(GM-D8704/XEVUC
GM-DX874/XEVUC
GM-D8704/XEVES)
CN51
VR3-B
BASS BOOST REMOTE CONTROL

15
GM-D8704/XEVUC
56 7 8
56 7 8
A B C
D
E
F
A
A A
P.C.B TOTAL ASSY SIDE B

16 GM-D8704/XEVUC
12 3 4
A
B
C
D
E
F
12 3 4
12. ELECTRICAL PARTS LIST
NOTE:
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.....
Parts marked by " *" are generally unavailable because they are not in our Master Spare Parts List.
The >mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
The expression of the unit in this manual is shown by u instead of . Please do not make a mistake.
Circuit Symbol and No. Part No.
A:GM-D8704/XEVUC
B:GM-DX874/XEVUC
C:GM-D8704/XEVEW5
D:GM-DX874/XEVEL5
E:GM-D8704/XEVES
A
Unit Number: 7025CX1806020(A)
Unit Number: 7025CX1807010(B)
Unit Number: 7025CX1806010(C)
Unit Number: 7025CX1807020(D)
Unit Number: 7025CX1806030(E)
Unit Name : P.C.B TOTAL ASSY
MISCELLANEOUS
IC 1 IC,LINEAR OP J121290100010S
IC 2 IC,ANALOG J080004940090S
IC 3 IC,LINEAR-REGULATOR J126790500570S
IC 4 IC,LINEAR OP J121458000050S
IC 5 IC,LINEAR OP J121458000050S
IC 6 IC,LINEAR OP J121458000050S
IC 7 IC,LINEAR OP J121458000050S
IC 8 IC,LINEAR OP J121458000050S
IC 9 IC,LINEAR OP J121458000050S
IC 10 IC,LINEAR OP J121458000050S
IC 11 IC,LINEAR OP J121458000050S
IC 12 IC,LINEAR OP J121458000050S
IC 13 IC,LINEAR OP J121458000050S
IC 15 IC,LINEAR OP(A,B,D,E) J121458000050S
IC 16 IC,LINEAR OP(A,B,D,E) J121458000050S
IC 17 IC,LINEAR OP J121458000050S
IC 18 IC,LINEAR-REGULATOR J126780500570S
IC 19 IC,LINEAR OP J121458000050S
IC 20 IC,LINEAR OP J121458000050S
IC 51 IC,LINEAR OP J121458000050S
IC 59 IC,LINEAR OP(A,B,D,E) J121217201010S
IC 502 IC,LINEAR OP J121458000050S
IC 516 IC,ANALOG J080209301010S
Q 14 SEMI,TR/GE PNP 2SA J5001040D0210S
Q 16 SEMI,FET/2SN J544320502010S
Q 17 SEMI,FET/2SN J544320502010S
Q 20 SEMI,FET/2SN J544320502010S
Q 21 SEMI,FET/2SN J544320502010S
Q 50 SEMI,TR/GE PNP 2SA J5001046Y0210S
Q 51 SEMI,TR/GE NPN 2SD J5032026Y0010S
Q 515 SEMI,FET/P 2SJ J540677501010S
Q 516 SEMI,FET/P 2SJ J540677501010S
Q 517 SEMI,FET/P 2SJ J540677501010S
Q 518 SEMI,FET/P 2SJ J540677501010S
Q 519 SEMI,FET/P 2SJ J540677501010S
Q 520 SEMI,FET/P 2SJ J540677501010S
Q 521 SEMI,FET/P 2SJ J540677501010S
Q 522 SEMI,FET/P 2SJ J540677501010S
Q 558 SEMI,TR/GE NPN 2SD J5032026Y0010S
D 1 D,RECTIFIER 1N K040154020010S
D 4 D,SCHOTTKY K120020200050S
D 5 D,SCHOTTKY K120020200040S
LED1 LED,ROUND K500032601140S
L7
COIL,FILTER-INDUCTOR 50 uH D330654100010V
L 500 COIL,TOROIDAL(RING) 10 uH D305010350010S
L 501 COIL,TOROIDAL(RING) 10 uH D305010350010S
L 502 COIL,TOROIDAL(RING) 10 uH D305010350010S
L 503 COIL,TOROIDAL(RING) 10 uH D305010350010S
*T 1 POWER TRANS 8200401600010V
TH1 POSISTOR F320184710051S
TH2 POSISTOR F320471000950S
TH3 THERMISTOR F340550200010S
SW1 SW,SLIDE(B_LPF/HPF) G060231900020S
SW2 SW,SLIDE(A_LPF/HPF) G060231900020S
SW503 SW,SLIDE(INPUT SELECT) G060221900020S
VR1 VR,ROTARY 50 kohm (A_FREQ) C450105300040S
VR2 VR,ROTARY 10 kohm (B_GAIN) C450101300050S
VR3 VR,ROTARY 10 kohm (A_GAIN) C450101300050S
VR501 VR,ROTARY 50 kohm (B_FREQ) C450105300040S
CN52 JACK,MODULAR(A,B,D,E) G4060RJ220010S
JK1 TER,RCA 6PIN(A,C,D,E) G603613F00000S
JK1 TER,RCA 6PIN(B) G603613FG0000S
JK501 TER,BOARD SCREW G6180WB040340S
JK503 TER,BOARD SCREW G6180WB040340S
POWER2 TER,BOARD SCREW G6180WB030330S
>
FUSE1 HOLDER,FUSE 30 A G6400BXS20100S
Circuit Symbol and No. Part No.

17
GM-D8704/XEVUC
56 7 8
56 7 8
A
B
C
D
E
F
RESISTORS
R 38 N113138610010S
R 39 N113138610010S
R 40 N113138622010S
R 45 C120056267000S
R 46 C120056267000S
R 229 C060015165050S
R 230 C060015165050S
R 233 N113138610010S
R 234 N113138610010S
R 655 N113138647030S
R 656 N113138647030S
R 657 N113138647030S
R 658 N113138647030S
R 730 N113138610010S
CAPACITORS
C 1 D041221083230S
C 5 D0414R7087230S
C 7 D041222087230S
C 9 D0414R7087230S
C 11 D041101083240S
C 12 D041100087230S
C 14 (A,B,D,E) D02418406C060S
C 16 D041100087230S
C 19 (A,B,D,E) D041220087230S
C 20 D041101084230S
C 27 D041222087230S
C 33 (A,B,D,E) D041220087230S
C 34 (A,B,D,E) D02418406C060S
C 36 (A,C,E) D041100087230S
C 36 (B,D) D040470087220S
C 40 (A,B,D,E) D041101083240S
C 41 D041330087230S
C 53 D041470084230S
C 54 D041470084230S
C 55 D02468306C060S
C 56 D041220087230S
C 57 D041222087230S
C 58 D041222087230S
C 59 D041222087230S
C 60 D041222087230S
C 66 D041100087230S
C 67 D041101084230S
C 68 D02468306C060S
C 72 D02468306C060S
C 78 D041220087230S
C 81 D041100087230S
C 88 D041220087230S
C 89 D041330087230S
C 90 D02468306C060S
C 91 D0414R7087230S
C 95 D02468306C060S
C 100 D02468306C060S
C 114 D041330087230S
C 118 D041330087230S
C 121 D041470084230S
C 122 D041220087230S
C 134 D041220087230S
Circuit Symbol and No. Part No.
C 135 D041220087230S
C 137 (A,B,D,E) D041220087230S
C 139 (A,B,D,E) D041101083240S
C 140 (A,B,D,E) D041220087230S
C 141 (A,B,D,E) D02418406C060S
C 142 D041470084230S
C 145 (A,C,E) D041102084050S
C 145 (B,D) D041102084041S
C 146 (A,C,E) D041102084050S
C 146 (B,D) D041102084041S
C 147 (A,C,E) D041102084050S
C 147 (B,D) D041102084041S
C 148 (A,C,E) D041102084050S
C 148 (B,D) D041102084041S
C 153 D02410206C060S
C 154 D041470084230S
C 157 (A,C,E) D041100087230S
C 157 (B,D) D040470087220S
C 158 D041470084230S
C 160 D041470084230S
C 514 D02468306C060S
C 516 D041470084230S
C 523 (A,B,D,E) D041101083240S
C 534 D041470084230S
C 540 (A,B,D,E) D02418406C060S
C 542 D02468306C060S
C 546 (A,B,D,E) D0412R2087230S
C 547 (A,B,D,E) D041010087230S
C 548 (A,B,D,E) D041471083230S
C 602 D02447406H060S
C 603 D02447406H060S
C 604 D02447406H060S
C 605 D02447406H060S
C 697 D041470084230S
C 699 D041220087230S
Miscellaneous Parts List
VR3 VR,ROTARY 10 kohm(BASS BOOST) (A,B,D,E) C450901100010S
CN51 JACK,MODULAR(A,B,D,E) G4060RJ220010S
Circuit Symbol and No. Part No.