Pioneer VSX-D938TX Service Manual
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-D938TX
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
ORDER NO.
RRV2189
Type
HL ‡
LB ‡
: Alter the wiring of the Power -supply block at the primary winding of Power -transformer referring to the "Line V oltage Selection" described
∗
in Service Manual.
Model
VSX-D938TX
Power Requirement
AC220-230V
AC110V
The voltage can be converted by
the following method.
AC240V,
–––––––
∗
¶ This service manual should be used together with the following manual(s):
Model No. Order No. Remarks
VSX-908RDS-G/HY RRV2166
CONTENTS
1. CONTRAST OF MISCELLANEOUS PARTS
2. PCB CONNECTION DIAGRAM
3. SCHEMATIC DIAGRAM
PIONEER 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
PIONEER CORPORATION 1999
.......................................
............................
........
2
5
6
T – ZZK AUG. 1999 Printed in Japan
VSX-D938TX
1. CONTRAST OF MISCELLANEOUS PARTS
NOTES:
CONTRAST TABLE
VSX-D938TX/HL, LB and VSX-908RDS-G/HY are constructed the same except for the following :
Ref. No. Mark Symbol and Description VSX-908RDS-G VSX-D938TX VSX-D938TX Remarks
Parts marked by "NSP" 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.
Screws adjacent to mark on product are used for disassembly.
Reference Nos. indicate the pages and Nos. in the service manual for the base model.
When ordering resistors, first convert resistance values into code form as shown in the following examples.
Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%,
and K=10%).
560
47k
0.5
1
56 x 10
47 x 103
R50
1R0
1
561
473
RD1/4PU J
RD1/4PU J
RN2H K
RS1P K
561
473
R50
1R0
Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).
5.62k RN1/4PC F562 x 10
1
5621
5621
Part No.
/HY /HL /LB
ASSEMBLIES
P5- 5 MAIN CONTROL ASSY AWX7410 AWX7465 AWX7428
NSP MAIN ASSY AWK7528 AWK7561 AWK7542
P5- 7 DIODE ASSY AWX7469 AWX7469 AWX7343
P5- 8 SP/PS ASSY AWX7359 AWX7359 AWX7449
P7- 8 VL-TERMINAL ASSY AWX7511 AWX7511 AWX7324
P5-10 TRANS 1 ASSY AWX7316 AWX7316 Not used
P5-10 TRANS 1/LB ASSY Not used Not used AWX7447
P5-15 PRIMARY ASSY AWX7345 AWX7345 AWX7429
P8- 2 DISPLAY ASSY AWX7414 AWX7408 AWX7408
P3- 2 FM Wire Antenna ADH7010 ADH7010 ADH7011
P3- 3 Operating Instructions (English) ARB7187 ARE7213 ARE7213
P3- 9 Packing Case AHD7815 AHD7818 AHD7818
P3-12 NSP Warranty Card ARY7022 Not used Not used
P3-14 Operating Instructions (German) ARC7244 Not used Not used
P3-15 Operating Instructions (French) ARC7245 Not used Not used
P3-16 Operating Instructions (Italian) ARC7246 Not used Not used
P3-17 Operating Instructions (Dutch) ARC7270 Not used Not used
P3-18 Operating Instructions (Swedish) ARC7280 Not used Not used
P3-19 Operating Instructions (Spanish) ARC7281 Not used Not used
P3-20 Operating Instructions (Portuguese) ARC7282 Not used Not used
P5-20 AC Power Cord ADG7029 VDG1063 ADG7023
P5-21 Power Transformer (T1) ATS7253 A TS7253 Not used
P5-21 Power Transformer (T1) (AC110V) Not used Not used ATS7255
P5-22 FM/AM TUNER Unit AXX7048 AXX7048 AXX7047
P5-23
NSP POWER/CURRENT ASSY AWK7510 AWK7510 AWK7548
NSP COMPLEX ASSY AWK7529 AWK7529 AWK7543
NSP FRONT/VAMP ASSY AWK7530 AWK7544 AWK7544
PACKING SECTION
Operating Instructions (Chinese) Not used ARC7286 ARC7286
EXTERIOR SECTION
(AC220-230V/240V)
Fuse (FU1 : T4A) AEK-514 AEK-514 Not used
P5-23
P5-26 AC Cord Spacer ANG1153 ANG7281 Not used
P5-26 Cord Stopper Not used CM-22B CM-22C
P5-27 Bonnet Case AZN7809 AZN7809 AZN7794
P5-54 Rear Panel ANC7866 ANC7816 ANC7817
Fuse (FU1 : 10A) Not used Not used DEK1045
2
VSX-D938TX
Part No.
Ref. No. Mark Symbol and Description VSX-908RDS-G VSX-D938TX VSX-D938TX Remarks
/HY /HL /LB
P5-72 Screw BBT30P100FCC BBT30P100FZK BBT30P100FZK
P5-75 Screw IBZ30P100FCC IBZ30P100FCC Not used
P5-78 AC Socket 3P AKP-502 AKP-502 Not used
P5-79 Caution Label ARW7036 ARW7036 Not used
P5-80 Fuse Holder Not used VKR1003 Not used
P5-81 Fuse (T5A) Not used PEK1003 Not used
P5-82 Fan Motor AXM7012 AXM7012 Not used
P7- 9 NSP Heat Sink ANH7102 ANH7103 ANH7102
P7-16 Thermistor AEX7004 AEX7004 Not used
P8-10 Door Sheet AAH7057 AAH7054 AAH7054
P8-14 MR Button AAD7575 Not used Not used
P8-25 Front Panel ANB7176 ANB7196 ANB7196
Notes : For ASSEMBLIES, refer to “CONTRAST OF PCB ASSEMBLIES”, “2. PCB CONNECTION DIAGRAM” and “3. SCHEMATIC
DIAGRAM”.
CONTRAST OF PCB ASSEMBLIES
MAIN CONTROL ASSY
D
F
HEAT SINK SECTION
FRONT PANEL SECTION
AWX7465, AWX7428 and AWX7410 are constructed the same except for the following :
Mark Symbol and Description
Q992 2SC2412K Not used Not used
C995 CKSQYB103K50 Not used Not used
R921 RS1/10S103J Not used Not used
R922 Not used RS1/10S103J RS1/10S103J
R923 Not used Not used RS1/10S103J
R924 RS1/10S103J RS1/10S103J Not used
R925 Not used RS1/10S103J Not used
R926 RS1/10S103J Not used RS1/10S103J
R992 RS1/10S221J Not used Not used
R993 RS1/10S101J Not used Not used
AWX7410 AWX7465 AWX7428
Part No.
Remarks
R994 RS1/10S472J Not used Not used
VL-TERMINAL ASSY
I
F
AWX7324 and AWX7511 are constructed the same except for the following :
Mark Symbol and Description
C2011, C2012 CEAT4R7M2A CEAT1R0M2A
DIODE ASSY
K
F
AWX7511 AWX7324
Part No.
AWX7343 and AWX7469 are constructed the same except for the following :
Mark Symbol and Description
D3001, D3002 LN6SB60-4003 D5SBA20(B)
AWX7469 AWX7343
Part No.
Remarks
Remarks
3
VSX-D938TX
SP/PS ASSY
L
F
AWX7449 and AWX7359 are constructed the same except for the following :
Mark Symbol and Description
IC3001 AEK7007 Not used
Q3501, Q3502 DTA124ES Not used
Q3503 2SC4793 Not used
Q3504 2SC2235 Not used
D3501, D3502 S5688G Not used
D3505 MTZJ27D Not used
D3506, D3508 MTZJ12C Not used
D3507 MTZJ5.1B Not used
L3001, L3002 ATX1012 Not used
C3118 CEAT470M50 CEAT100M50
C3501 CEAT471M35 Not used
C3502 CEAT1R0M50 Not used
C3503 CKCYF103Z50 Not used
C3504 CEAT471M25 Not used
R3501 RD1/4PU471J Not used
R3502 RD1/4PU473J Not used
R3503 RD1/4PU102J Not used
R3504 RD1/4PU104J Not used
R3505 RS3LMF221J Not used
R3506 RD1/4PU222J Not used
AWX7359 AWX7449
Part No.
Remarks
R3507 RD1/4PU103J Not used
CN3002 KM250MA3 Not used
DISPLAY ASSY
S
F
AWX7408 and AWX7414 are constructed the same except for the following :
Mark Symbol and Description
IC7401 BU1923 Not used
Q7002 DTC124EK Not used
Q7401 2SA1993 Not used
Q7402 DTC143ES Not used
Q7403 2SC1740S Not used
D7002 SLR-343VR Not used
L7401 LFA2R2J Not used
S7019, S7020 VSG1009 Not used
C7401 CKSQYB472K50 Not used
C7402 CEAT2R2M50 Not used
C7403, C7404 CKSQYB102K50 Not used
C7405 CEAT101M10 Not used
C7406, C7407 CCSQCH270J50 Not used
C7408 CKSQYB561K50 Not used
C7409 CEAT1R0M50 Not used
R7038 RS1/10S271J Not used
R7062 RS1/10S0R0J Not used
R7401, S7407, S7408 RS1/10S102J Not used
R7403 RS1/10S222J Not used
R7404 RS1/10S473J Not used
AWX7414 AWX7408
Part No.
Remarks
R7405 RS1/10S333J Not used
R7406 RS1/10S104J Not used
X7401 CRYSTAL RESONATOR (4.332MHz) ASS7004 Not used
4
1
PRIMARY ASSY
V
F
234
VSX-D938TX
AWX7429 and AWX7345 are constructed the same except for the following :
Mark Symbol and Description
C6002, C6003 (10000pF/AC250V) ACE7014 ACG7020
C6006 CEAT221M25 CEAT470M25
L6003, L6004 ATX1012 Not used
RY6001 POWER RELAY ASR1044 ASR7022
T6001 STANDBY TRANS. ATT7040 ATT7041
R6002 RD1/4PU1R0J Not used
Y6003 ADX7321 Not used
Y6004 ADX7320 Not used
Y6005 ADX7319 Not used
6004 3P AC OUTLET Not used AKP1053
TRANS 1/LB ASSY
N
F
TRANS 1/LB Assy has no service parts.
AWX7345 AWX7429
Part No.
A
Remarks
B
2. PCB CONNECTION DIAGRAM
2.1 TRANS 1/LB ASSY
Y6001
V
N
TRANS 1/LB ASSY
F
(LB Type Only)
SIDE A
(ANP7308-D)
T1
POWER
TRANSFORMER
0V
V
110V
Y6002
120V
J6601 : DB112EB0
J6602 : DB412EB0
0V
10V
C
D
120V
F
5
N
1
2
3
4
1
23
VSX-D938TX
3. SCHEMATIC DIAGRAM
Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST"
A
3.1 MAIN CONTROL, PRIMARY and TRANS 1/LB ASSYS
4
D
3/3F
∗1
R923 :
B
V
LB TYPE ONLY
R924 :
HL TYPE ONLY
R925 :
HL TYPE ONLY
R926 :
LB TYPE ONLY
PRIMARY ASSY
F
MAIN CONTROL ASSY
(HL TYPE : AWX7465)
(LB TYPE : AWX7428)
∗1
(LB Type Only : AWX7429)
C
N
F
TRANS 1/LB ASSY
(AWX7447)
DTC143ES
1SS133
D
ACG7020
ACG7020
ADX7279
ADX7280
6
D
3/3F
1234
N
F
V
F
STANDBY/ON
—OFF _ON
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
DSP
STANDBY
MODE
/DTS
THX CINEMA ADVANCED STANDARD
STEREO
MPEG
DIMMER
EON
MODE
FL
DOWN UP
INPUT
SELECTOR
MASTER
VOLUME
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-908RDS
VSX-908RDS-G
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type
HY/EW – AC220-230V AC240V,
HY/GR – AC220-230V AC240V,
HV – AC230V AC240V,
HY – AC220-230V AC240V,
VSX-908RDS VSX-908RDS-G following method.
Model
Power Requirement
The voltage can be converted by the
∗
∗
∗
∗
ORDER NO.
RRV2166
: Alter the wiring of the Power -supply block at the primary winding of Power -transformer referring to the "Line V oltage Selection" described
∗
in Service Manual.
CONTENTS
1. SAFETY INFORMATION
2. EXPLODED VIEWS AND PARTS LIST
......................................
...............
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
4. PCB CONNECTION DIAGRAM
5. PCB PARTS LIST
6. ADJUSTMENT
...............................................
....................................................
.........................
...
10
48
71
79
2
3
7. GENERAL INFORMATION
7.1 DISASSEMBLY
7.2 PARTS
7.2.1 IC
..........................................................
............................................................
7.2.2 DISPLAY
............................................
.................................................
7.3 REMOTE CONTROL UNIT
8. PANEL FACILITIES AND SPECIFICATIONS
................................
..........................
.......
80
80
82
82
86
88
93
PIONEER 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 CORPORATION 1999
T – ZZK JULY 1999 Printed in Japan
VSX-908RDS, VSX-908RDS-G
1. SAFETY INFORMATION
This service manual is intended for qualified service technicians ; it is not meant for the casual do-ityourselfer. 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.
NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must
be of identical designation.
REMARQUE
(POUR MODÈLE CANADIEN SEULEMENT)
Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les pièces
de remplacement doivent avoir la même désignation.
Health & Safety Code Section 25249.6 – Proposition 65
(FOR USA MODEL ONLY)
1. SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service
technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground (water
pipe, conduit, etc.) by connecting a leakage current tester
such as Simpson Model 229-2 or equivalent between the
earth ground and all exposed metal parts of the appliance
(input/output terminals, screwheads, metal overlays, control
shaft, etc.). Plug the AC line cord of the appliance directly
into a 120V AC 60Hz outlet and turn the AC power switch
on. Any current measured must not exceed 0.5mA.
Reading should
not be above
0.5mA
Earth
ground
Device
under
test
Also test with
plug reversed
(Using AC adapter
plug as required)
Test all
exposed metal
surfaces
Leakage
current
tester
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL
SHOCK HAZARD AND MUST BE CORRECTED BEFORE
RETURNING THE APPLIANCE TO THE CUSTOMER.
2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance
have special safety related characteristics. These are
often not evident from visual inspection nor the protection
afforded by them necessarily can be obtained by using
replacement components rated for voltage, wattage, etc.
Replacement parts which have these special safety
characteristics are identified in this Service Manual.
Electrical components having such features are identified
by marking with a
in this Service Manual.
The use of a substitute replacement component which does
not have the same safety characteristics as the PIONEER
recommended replacement one, shown in the parts list in
this Service Manual, may create shock, fire, or other hazards.
Product Safety is continuously under review and new
instructions are issued from time to time. For the latest
information, always consult the current PIONEER Service
Manual. A subscription to, or additional copies of, PIONEER
Service Manual may be obtained at a nominal charge from
PIONEER.
on the schematics and on the parts list
AC Leakage Test
2
VSX-908RDS, VSX-908RDS-G
2. EXPLODED VIEWS AND PARTS LIST
NOTES:• Parts marked by "NSP" 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.
Screws adjacent to mark on the product are used for disassembly.
•
2.1 PACKING
5
13
Refer to
"7.3 REMOTE
CONTROL UNIT".
(1) PACKING PARTS LIST
Mark No. Description Part No.
4
8
9
11
1
2
3 (Except HY/GR Type)
12
10
7 (2/2)
14 (Except HV Type)
15, 16, 17, 18, 19, 20
(HY/EW and HY Types Only)
13
7 (1/2)
Mark No. Description Part No.
1 AM Loop Antenna ATB7009
2 FM Wire Antenna ADH7010
3 Operating Instructions(English) See Contrast table (2)
4 Remote Control Unit See Contrast table (2)
NSP 5 Alkaline Dry Cell Battery VEM1012
(LR6, AA)
6 • • • • •
7 Front Pad AHA7253
8 Rear Pad AHA7254
9 Packing Case See Contrast table (2)
10 Packing Sheet RHC1023
NSP 12 Warranty Card ARY7022
11 Polyethylene Bag Z21-038
(0.03×230×340)
13 Spacer AHB7032
14 Operating Instructions See Contrast table (2)
15 Operating Instructions See Contrast table (2)
16 Operating Instructions See Contrast table (2)
17 Operating Instructions See Contrast table (2)
18 Operating Instructions See Contrast table (2)
19 Operating Instructions See Contrast table (2)
20 Operating Instructions See Contrast table (2)
(2) CONTRAST TABLE
VSX-908RDS/HY/EW, HY/GR, HV and VSX-908RDS-G/HY are constructed the same except for the following :
Part No.
Mark No. Symbol and Description VSX-908RDSVSX-908RDSVSX-908RDSVSX-908RDS Remarks
/HY/EW /HY/GR /HV -G/HY
3 Operating Instructions (English) ARB7187 Not used ARB7187 ARB7187
4 Remote Control Unit (CU-VSX162) AXD7214 AXD7214 AXD7214 Not used
4 Remote Control Unit (CU-VSX165) Not used Not used Not used AXD7236
9 Packing Case AHD7814 AHD7814 AHD7814 AHD7815
14 Operating Instructions (German) ARC7244 ARC7244 Not used ARC7244
15 Operating Instructions (French) ARC7245 Not used Not used ARC7245
16 Operating Instructions (Italian) ARC7246 Not used Not used ARC7246
17 Operating Instructions (Dutch) ARC7270 Not used Not used ARC7270
18 Operating Instructions (Swedish) ARC7280 Not used Not used ARC7280
19 Operating Instructions (Spanish) ARC7281 Not used Not used ARC7281
20 Operating Instructions (Portuguese) ARC7282 Not used Not used ARC7282
3
VSX-908RDS, VSX-908RDS-G
2.2 EXTERIOR
73
10
11
71
Refer to
"2.4 FRONT PANEL SECTION".
58
72
66
48
67 *
1
66 *
2
(Except HV Type)
73
24
N
36
49
19
67 *
66 *
79
27
83
6
25
21
43
43
67 *
1
66 *
67 *
66 *
2
1
2
59
50
F
49
40
49
1
2
71
M
67 *
77 *
67 *
77 *
1
2
67 *
1
77 *
2
Note *1 : VSX-908RDS
*2 : VSX-908RDS-G
67 *
1
77 *
2
20
80
(HV Type Only)
67 *
1
66 *
2
81
26
(Except HV Type)
26
(Except HV Type)
78
67 *
66 *
1
2
(HV Type Only)
20
82
54
73
O
23
15
37
1
2
M
L
62
70
O
69
13
33
J
I
51
16
69
12
G
32
8
J
65
30
H
31
67 *
1
75
2
66 *
68
67 *1
66 *2
63
K
28
P
17
22
53
67
7
Refer to
"2.3 HEAT SINK SECTION".
34
67
E
67 *
66 *
45
52
67 *
52
F
77 *
1
2
52
64
51
70
70
39
67
44
29
A
E
N
51
42
67 *
1
66 *
1
50
2
67 *
77 *
1
2
2
44
42
67 *
1
77 *
2
67 *
1
77 *
38
67 *
66 *
G
B
L
70
55
2
1
2
H
4
3
84
70
35
I
2
P
K
5
84
9
18
67 *
1
77 *2
4
VSX-908RDS, VSX-908RDS-G
(1) EXTERIOR PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
NSP 2 EXTERNAL IN Assy AWX7413
1 • • • • •
NSP 3 A-PINJACK Assy AWX7412
4 CONNECTION Assy AWX7347
5 MAIN CONTROL Assy AWX7410
6 TRANS 2-1 ASSY AWX7403
7 DIODE Assy AWX7343
8 SP/PS Assy AWX7359
9 REGULATOR Assy AWX7310
10 TRANS 1 Assy AWX7316
11 TRANS 2-2 Assy AWX7518
12 VIDEO Assy AWX7422
13 S-VIDEO Assy AWX7395
14 • • • • •
15 PRIMARY Assy See Contrast table (2)
16 DIGITAL-I/O Assy AWX7396
NSP 17 RF TERMINAL Assy AWX7376
18 DSP Assy AWX7272
19 V-AMP Assy AWX7309
20 AC Power Cord See Contrast table (2)
21 Power Transformer (T1) ATS7253
22 FM/AM TUNER Unit AXX7048
23 Fuse (FU1 : T4A) AEK-514
24 Fuse (FU4 : T2A) AEK-511
25 Fuse (FU5 : T2A) AEK-511
26 AC Cord Spacer See Contrast table (2)
27 Bonnet Case See Contrast table (2)
28 2P Shield with Housing (J24) ADX7250
29 Lead Card 07P (J13) ADD7161
30 Lead Card 11P AD (J22) ADD7170
41 • • • • •
42 Cushion 55 PNM1316
NSP 43 Frame 26 ANG7238
44 Insulator PNW2766
45 Locking Card Spacer DEC1908
46 • • • • •
47 • • • • •
NSP 48 Panel Stay 26 AND7031
49 PC Support VEC1549
NSP 50 PCB Holder AEC7057
NSP 51 PCB Holder PNW2100
NSP 52 PCB Mould AMR1525
53 PCB Spacer AEC1372
54 Rear Panel See Contrast table (2)
55 Shield Case ANK7054
56 • • • • •
57 • • • • •
58 Side Escutheon L See Contrast table (2)
59 Side Escutheon R See Contrast table (2)
60 • • • • •
61 • • • • •
62 Stud Cover AEC7105
63 Terminal Screw AKE-031
NSP 64 Under Base 26 ANA7089
NSP 65 Binder (BK-1) ZCA-BK1
66 Screw BBT30P080FCC
67 Screw BBZ30P080FZK
68 Screw ABA1193
69 Screw IBZ30P080FCC
70 Screw BBZ30P180FMC
31 Lead Card 13P AD (J16) ADD7169
32 Lead Card 14P (J17) ADD7165
33 Lead Card 21P (J18) ADD7164
34 Lead Card 23P BD SLD (J12) ADD7160
35 Lead Card 26P (J15) ADD7163
36 Lead Card 28P (J23) ADD7171
37 Assy Holder ANG7121
38 Assy Holder B AMR7267
39 Card Spacer AEC7133
40 Card Spacer DEC1772
71 Screw ABA1015
72 Screw See Contrast table (2)
73 Screw See Contrast table (2)
74 Screw BBZ30P060FCC
75 Screw IBZ30P100FCC
76 Screw BBT30P080FZK
77 Screw BBZ30P080FCC
78 AC Socket 3P See Contrast table (2)
79 Caution Label See Contrast table (2)
80 Fuse Holder See Contrast table (2)
81 Fuse (T5A) See Contrast table (2)
82 Fan Motor AXM7012
NSP 83 Spacer AEB1254
84 Remo-con. Cushion AEB7167
5
VSX-908RDS, VSX-908RDS-G
(2) CONTRAST TABLE
VSX-908RDS/HY/EW, HY/GR, HV and VSX-908RDS-G/HY are constructed the same except for the following :
Part No.
Mark No. Symbol and Description VSX-908RDSVSX-908RDSVSX-908RDSVSX-908RDS Remarks
15 PRIMARY Assy AWX7345 AWX7345 AWX7454 AWX7345
20 AC Power Cord ADG7029 ADG7029 VDG1063 ADG7029
26 AC Cord Spacer ANG1153 ANG1153 Not used ANG1153
26 Cord Stopper Not used Not used CM-22B Not used
27 Bonnet Case AZN7808 AZN7808 AZN7808 AZN7809
54 Rear Panel ANC7742 ANC7742 ANC7818 ANC7866
58 Side Escutheon L 98 AAK7660 AAK7660 AAK7660 Not used
58 Side Escutheon L D8 Not used Not used Not used AAK7662
59 Side Escutheon R 98 AAK7661 AAK7661 AAK7661 Not used
59 Side Escutheon R D8 Not used Not used Not used AAK7663
72 Screw BBT30P100FZK BBT30P100FZK BBT30P100FZK BBT30P100FCC
73 Screw FBT40P080FZK FBT40P080FZK FBT40P080FZK FBT40P080FNI
78 AC Socket 3p AKP-502 AKP-502 Not used AKP-502
79 Caution Label ARW7036 ARW7036 Not used ARW7036
80 Fuse Holder Not used Not used VKR1003 Not used
/HY/EW /HY/GR /HV -G/HY
81 Fuse (T5A) Not used Not used PEK1003 Not used
6
2.3 HEAT SINK SECTION
VSX-908RDS, VSX-908RDS-G
10
16
13
13
9
12
13
4
3
1
14
13
2
14
11
13
7
13
6
5
13
11
13
13
9
15
8
13
10
12
(1) HEAT SINK SECTION PARTS LIST
Mark No. Description Part No.
NSP 2 C-AMP-P Assy AWX7317
NSP 3 OUTPUT-SL Assy AWX7322
NSP 4 OUTPUT-FL Assy AWX7319
NSP 6 OUTPUT-FR Assy AWX7320
NSP 7 OUTPUT-SR Assy AWX7323
NSP 9 Heat Sink ANH7102
NSP 12 Power Supply Plate ANG7240
16 Thermistor AEX7004
1 C-AMP N Assy AWX7318
5 OUTPUT-C Assy AWX7321
8 VL-TERMINAL Assy AWX7324
10 Heat Sink Holder B AMR7256
11 Heat Sink Holder A AMR7255
13 Screw See Contrast table (2)
14 Screw ABA1082
15 Screw IBZ30P080FCC
(2) CONTRAST TABLE
VSX-908RDS/HY/EW, HY/GR, HV and VSX-908RDS-G/HY are constructed the same except for the following :
Part No.
Mark No. Symbol and Description VSX-908RDSVSX-908RDSVSX-908RDSVSX-908RDS Remarks
13 Screw BBZ30P080FZK BBZ30P080FZK BBZ30P080FZK BBZ30P 080FCC
/HY/EW /HY/GR /HV -G/HY
7
VSX-908RDS, VSX-908RDS-G
2.4 FRONT PANEL SECTION
33
4
6
7
27
37
43
14
38
2
Cut
35
D
20
16
35
32
40
35
17
D
B
3
15
35
40
35
A
35
35
42
41
36
13
26
24
1034
11
44
31
23
34
5
28
30
1
39
24
2223
45
19
32
29
21
25
(1) FRONT PANEL SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
1 H. PHONE/F. VIDEO Assy AWX7342
2 DISPLAY Assy AWX7414
NSP 3 ROTARY ENCODER Assy AWX7405
4 Door Hinge L See Contrast table (2)
5 Door Hinge R See Contrast table (2)
NSP 6 Magnet Angle ANG7241
7 Door Panel See Contrast table (2)
8 • • • • •
9 • • • • •
10 Door Sheet See Contrast table (2)
11 Display Panel See Contrast table (2)
12 • • • • •
13 Power Button (STANDBY/ON) See Contrast table (2)
14 MR Button (MULTIROOM) See Contrast table (2)
15 Lead Card 32P (J11) ADD7159
16 Lead Card 05P (J14) ADD7162
17 Lead Card 06P (J20) ADD7167
18 • • • • •
19 Lead Card 12P (J21) ADD7166
20 Damper Assy (60) AXA7076
21 Sub Panel See Contrast table (2)
22 Volume Ring See Contrast table (2)
23 Nut NK90FUC
24 Door Cusion See Contrast table (2)
25 Front Panel See Contrast table (2)
NSP 37 Cord with Plug ADH7020
26 LED Lens PNW2019
27 Name Plate See Contrast table (2)
28 Ring Spacer D5 AWL7038
29 FL Sheet D10 AAK7629
30 Volume Knob See Contrast table (2)
(MASTER VOLUME)
31 Rotary Knob See Contrast table (2)
(INPUT SELECTOR)
32 Screw ABA7053
33 Screw PBA1096
34 Screw BBZ30P060FCC
35 Screw BPZ30P080FMC
36 Screw See Contrast table (2)
38 Panel Base See Contrast table (2)
39 Magnet AMF7002
40 Cord Clamper RNH-184
41 P-SW Assy AWX7330
42 Power Button MG See Contrast table (2)
43 Screw See Contrast table (2)
44 GND Spring ABH7172
45 Screw See Contrast table (2)
8
VSX-908RDS, VSX-908RDS-G
(2) CONTRAST TABLE
VSX-908RDS/HY/EW, HY/GR, HV and VSX-908RDS-G/HY are constructed the same except for the following :
Part No.
Mark No. Symbol and Description VSX-908RDSVSX-908RDS VSX-908RDS VSX-908RDS Remarks
4 Door Hinge 26 L AMR7252 AMR7252 AMR7252 Not used
4 Door Hinge D10 L Not used Not used Not used AMR7250
5 Door Hinge 26 R AMR7253 AMR7253 AMR7253 Not used
5 Door Hinge D10 R Not used Not used Not used AMR7251
7 Door Panel 98 ANB7199 ANB7199 ANB7199 Not used
7 Door Panel E07 Not used Not used Not used ANB7175
10 Door Sheet 98R AAK7664 AAK7664 AAK7664 Not used
10 Door Sheet 98RG Not used Not used Not used AAH7057
11 Display Panel SD AAK7630 AAK7630 AAK7630 Not used
11 Display Panel SDG Not used Not used Not used AAK7631
13 Power Button AAD7440 AAD7440 AAD7440 Not used
13 Power Button G Not used Not used Not used AAD7485
14 MR Button 26 AAD7514 AAD7514 AAD7514 Not used
14 MR Button G Not used Not used Not used AAD7541
21 Sub Panel 98 ANB7200 ANB7200 ANB7200 Not used
/HY/EW /HY/GR /HV -G/HY
21 Sub Panel D8 Not used Not used Not used ANB7207
22 Volume Ring 98 AAH7028 AAH7028 AAH7028 Not used
22 Volume Ring D10 Not used Not used Not used AAH7016
24 Door Cusion B AEB7152 AEB7152 AEB7152 Not used
24 Door Cusion G Not used Not used Not used AEB7153
25 Front Panel 908 ANB7173 ANB7173 ANB7173 Not used
25 Front Panel 98RG Not used Not used Not used ANB7176
27 Name Plate B PAN1376 PAN1376 PAN1376 Not used
27 Name Plate G Not used Not used Not used PAN1377
30 Volume Knob 98 AAB7199 AAB7199 AAB7199 Not used
30 Volume Knob 98HL Not used Not used Not used AAB7210
31 Rotary Knob 29 AAB7221 AAB7221 AAB7221 Not used
31 Rotary Knob E07 Not used Not used Not used AAB7209
36 Screw BBZ30P080FZK BBZ30P080FZK BBZ30P080FZK BBZ30P080FCC
38 Panel Base 98 AMB7637 AMB7637 AMB7637 Not used
38 Panel Base D8 Not used Not used Not used AMB7572
42 Power Button M AAD7442 AAD7442 AAD7442 Not used
42 Power Button MG Not used Not used Not used AAD7491
43 Screw BBZ30P050FZK BBZ30P050FZK BBZ30P050FZK BBZ30P050FMC
45 Screw BBT30P080FZK BBT30P080FZK BBT30P080FZK BBT30P080FCC
9
VSX-908RDS, VSX-908RDS-G
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
UNIT
AXX7046
8
CN902
D
IC101
15 3 1
IC103
CN104
16
1
CN9801
59
IC9151
Y
IC9201
IC9202
IC9101
IC9071
IC9203
16
9
IC9321
26
IC9411 IC9421 IC9401
B
B
R
B
14
11
CN7201
16
17
18
1
CN1001
CN1001
4
3
6
3
CN1001
CN1352
CN906
C
4
4
IC351
C
2
C
IC9601
CN9801
12
10
4
2
8
6
W
X
R
CN1201
CN1250
A
CN7201
V
DSP+5V
IC1301
IC1303
IC1302
5386
AD+5V
M
CN1302
A+15V
9, 8
7, 2
3, 4
A-15V
IC701
CN702
2
V
1315
3
CN5006
3
5
7
9
11
2
CN1101
5
CN701
4
3
7
5
9
13
11
15
V
14
5, 8
4, 3
1, 2
IC701
3
5
7
9
11
CN9803
CN9804
2
V
1
C
4, 1
5, 6
7, 8
CN1301
1
15
2
IC751
P
13
12
10
IC701
: AUDIO SIGNAL ROUTE
V
: VIDEO SIGNAL ROUTE
Y
: Y SIGNAL ROUTE
C
: C SIGNAL ROUTE
IC105
5, 7
31
Q271
13, 15
9, 11
CN104
25
26
27
7, 11
6, 10
18
19
IC104
D
9, 12
24
17
CN5003
OTHERS
IC108
25
7, 10
19
6, 9
26
20
M
A+15V
IC112
IC114
IC113
A-15V
T+12V
5498
5
6, 4
4
6
IC107
IC107
IC107
V+5.6V
7
8, 2
2
V-5.6V
CN109
U+5.6V
AD+5V
V+5.6V
14
8
16
V-5.6V
IC5007
IC5004
IC5005
IC5006
E
CN501
10
Q510
16
Q550
8
Q610
T+12V
IC5003
A+15V
IC5001
A-15V
IC5002
M
IC7501, IC7502
+3.5 ~ +8.5dB
(Normally :
+8.5dB)
31
IC7541, IC7542
+3.5 ~ +8.5dB
(Normally :
+8.5dB)
31
IC7601, IC7602
+3.5 ~ +8.5dB
(Normally :
+8.5dB)
31
VSX-908RDS, VSX-908RDS-G
ST
S6001
+5V
IC6001
D6001-D6004
RY6001
T1
POWER
TRANSFORMER
CN3003
39
RY3105
L
RY3101
RY3103
RY3104
RY3102
V
CN7201
R
D5001–D5004
D5005–D5008
VH+
VH-
CN501
46
Q4501
Q4502
8, 10
CN502
13, 15
3, 4
DSP
+5V
IC5008
D4501–D4504
VL+
J
VL-
CN2001
21, 19 Y9
Q2501
Q2524
F
G
16, 14
Q2541
Q2544
26, 24
Q2601
Q2504
Y7Y6
D5009
K
HB
R2512
HC
R2552
HA
R2612
D3001–D3002
Y11
Y12
T6001
AC IN
JA7201
CN103
2, 3
4, 9
8, 7
CN804
2
3
IC851
Q107
IC115
7
Q
Y
13
12
IC852
Y
14
C
5
4
3
IC852
2
1
IC852
C
15
1
IC801
1
IC802
5
9
13
3
7
5
9
13
3
Q108
15
14
13
12
2
11
15
11
15
Q112
Q110
3
IC801
CN804
Y
C
Y
C
6
6
7
7
CN7201
R
Q109
Q111
11
1
23
VSX-908RDS, VSX-908RDS-G
3.2 OVERALL WIRING CONNECTION DIAGRAM
ROTARY ENCODER ASSY
T
(AWX7405)
A
DISPLAY ASSY
ADD7167
S
(AWX7414)
E
E E
1/2, 2/2
V-AMP ASSY
(AWX7309)
4
ADD7159
B
ADD7161
1/5- 5/5
ADD7162
Y Y
Y
DSP ASSY
(AWX7272)
C
1/3- 3/3
ADD7160
C-AMP-P ASSY
(AWX7317)
G
REGULATOR ASSY
M
(AWX7310)
HE
HD
HC
HB
HA
I
OUTPUT-SR
ASSY
(AWX7323)
OUTPUT-FR
ASSY
(AWX7320)
OUTPUT-C
ASSY
(AWX7321)
OUTPUT-FL
ASSY
(AWX7319)
OUTPUT-SL
ASSY
(AWX7322)
VL-TERMINAL
ASSY
(AWX7324)
D D
ADD7170
D
MAIN CONTROL ASSY
(AWX7410)
ADD7163
CONNECTION ASSY
C
(AWX7347)
ADD7164
D
RF TERMINAL
ASSY
(AWX7376)
12
W
DIGITAL-I/O ASSY
(AWX7396)
1234
X
EXTERNAL IN ASSY (AWX7413)
A
A-PINJACK ASSY (AWX7412)
B
P
VIDEO ASSY
(AWX7422)
5
678
VSX-908RDS, VSX-908RDS-G
Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and P AR TS LIST" or "PCB PARTS LIST".
• CAUTION : Heatsink's DC level is equal to +B or -B.
ADD7166
Don't touch them or you will be electricary shocked.
R
H. PHONE/F. VIDEO ASSY
(AWX7342)
ADD7171
O
TRANS 2-2
ASSY
(AWX7518)
N
TRANS 1 ASSY
(AWX7316)
U
P-SW ASSY
(AWX7330)
A
ADD7165
DIODE ASSY
(AWX7343)
C-AMP-N ASSY
(AWX7318)
K
F
T1
POWER TRANSFORMER
(ATS7253)
TRANS 2-1 ASSY
J
(AWX7403)
V
PRIMARY ASSY
(Except HV Type
: AWX7345)
(HV Type Only
: AWX7454)
B
C
L
SP/PS ASSY
(AWX7359)
Q
S-VIDEO ASSY
(AWX7395)
13
5
6
7
8
D
1
23
VSX-908RDS, VSX-908RDS-G
3.3 EXTERNAL IN, A-PINJACK and CONNECTION ASSYS
4
A
A
EXTERNAL IN ASSY
CN1101
(AWX7413)
JA1101-JA1103 :
AKB7095
B
LD LD
A-PINJACK ASSY
B
(AWX7412)
JA1015: AKB7048
JA1016: AKB7120
TV TV
V1V1
LD
CN1001
MD
JA1011-JA1013 :
AKB7048
C
D
V2
MD
PP
V2
V1
LD
TV
CN1002
P
14
A B
1234
5
678
VSX-908RDS, VSX-908RDS-G
C
CN1301
CN1351
MD
V2
CONNECTION ASSY (AWX7347)
P
TV
V1
CN1302
CN1353
LD
V2
MD
D
1/3
A
CN103
B
V1
TV
CN1352
CN101
1/3
D
C
LD
PP
P
PP
LD
: AUDIO SIGNAL ROUTE (LD)
TV
: AUDIO SIGNAL ROUTE (TV)
V1
: AUDIO SIGNAL ROUTE (VCR1)
V2
: AUDIO SIGNAL ROUTE (VCR2)
MD
: AUDIO SIGNAL ROUTE (MD)
P
: AUDIO SIGNAL ROUTE (PHONO)
D
C
5
6
7
8
15
1
VSX-908RDS, VSX-908RDS-G
3.4 MAIN CONTROL ASSY (1/3)
: The power supply is shown with the marked box.
A
CN906
52045-0545
S
B
CN7005
23
2/3
D
TU
D
2/3
4
TV
1SS355
1SS355
LD
P
TU
T2
CD
T2
TU
2/3
D
T2
CN941 (1/2)CN941 (2/2)
CD
JA911
C
CD
TU
T2
V2
V1
MD
CN941 : AKB7075
JA911 : DKB1045
P
D
CN101
16
1/3
D
1234
LD
V1
TV
V2
MD
C
CN1353
5
678
VSX-908RDS, VSX-908RDS-G
D
1/3
MAIN CONTROL ASSY
(AWX7410)
: AUDIO SIGNAL ROUTE
LD
: AUDIO SIGNAL ROUTE (LD)
TV
: AUDIO SIGNAL ROUTE (TV)
V1
: AUDIO SIGNAL ROUTE (VCR1)
V2
: AUDIO SIGNAL ROUTE (VCR2)
MD
: AUDIO SIGNAL ROUTE (MD)
P
: AUDIO SIGNAL ROUTE (PHONO)
TU
: AUDIO SIGNAL ROUTE (TUNER)
CD
: AUDIO SIGNAL ROUTE (CD)
T2
: AUDIO SIGNAL ROUTE (TAPE2)
MR
: AUDIO SIGNAL ROUTE (MR)
A
B
CN104
1/2
C
2/2
D
CN103
M
CN5004
5
6
7
C
CN1302
D
1/3
8
17
1
VSX-908RDS, VSX-908RDS-G
3.5 MAIN CONTROL ASSY (2/3)
1/3
D
A
23
4
3/3
D
D
B
MAIN CONTROL ASSY
2/3
(AWX7410)
C
D
18
D
1/3
2/3
D
1234
5
678
VSX-908RDS, VSX-908RDS-G
3/3
D
: The power supply is shown
with the marked box.
: AUDIO SIGNAL ROUTE
A
B
Q107 - Q112 :
HN1C03F
CN105
1/2
E
CN501
113 (2/3)
113 (1/3)
113 (3/3)
113 : AKB7089
C
D
1/3
D
2/3
D
5
6
7
8
19
1
23
VSX-908RDS, VSX-908RDS-G
4
3.6 MAIN CONTROL ASSY (3/3)
A
To
FM/AM TUNER UNIT
B
CN902
TU
TU
TU
1SS355
D905-D908
1SS355
CN903
Y
CN9551
4/5
1SS355
C
2/3
D
D901-D904
1SS355
D
20
3/3
D
1234
CN901
M
CN5005
M
CN5008
CN920
5
D
3/3
MAIN CONTROL ASSY
(AWX7410)
678
VSX-908RDS, VSX-908RDS-G
: The power supply is shown with the marked box.
S
CN7001
A
CN904
B
CN108
5
M
CN5003
C
CN905
P
CN701
3/3
D
6
7
8
21
D
1
23
VSX-908RDS, VSX-908RDS-G
3.7 V-AMP ASSY (1/2)
4
A
E
V-AMP ASSY
1/2
(AWX7309)
IC7601 (1/2)
UPC4570G2
IC7501 (1/2)
UPC4570G2
B
CN501
E
2/2
IC7541 (1/2)
UPC4570G2
2/3
D
CN105
C
IC7521 (1/2)
UPC4570G2
2/2
E
IC7621 (1/2)
UPC4570G2
505, 506
VEF1040
D
22
1/2
E
1234
5
678
VSX-908RDS, VSX-908RDS-G
A
: AUDIO SIGNAL ROUTE
IC7601 (2/2)
UPC4570G2
IC7501 (2/2)
UPC4570G2
B
IC7541 (2/2)
UPC4570G2
IC7521 (2/2)
UPC4570G2
IC7621 (2/2)
UPC4570G2
E
2/2
C
D
1/2
E
5
6
7
8
23
1
VSX-908RDS, VSX-908RDS-G
3.8 V-AMP ASSY (2/2)
A
B
23
4
CN504
To
THERMISTOR
1/2
E
1/2
E
C
1/2
E
D
1/2
E
24
2/2
E
1234
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