ORDER NO.
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
c
VSX-908RDS
RRV2166
1. SAFETY INFORMATION ...................................... 2
2. EXPLODED VIEWS AND PARTS LIST ............... 3
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ... 10
4. PCB CONNECTION DIAGRAM ......................... 48
5. PCB PARTS LIST ............................................... 71
6. ADJUSTMENT .................................................... 79
CONTENTS
7. GENERAL INFORMATION ................................ 80
7.1 DISASSEMBLY ............................................ 80
7.2 PARTS .......................................................... 82
7.2.1 IC ............................................................ 82
7.2.2 DISPLAY ................................................. 86
7.3 REMOTE CONTROL UNIT .......................... 88
8. PANEL FACILITIES AND SPECIFICATIONS ....... 93
T ZZK JULY 1999 Printed in Japan
VSX-908RDS-G
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
STANDBY/ON
DSP
MODE
STANDBY
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
STEREO
THX CINEMA
ADVANCED
STANDARD
/DTS
MPEG
--OFF _ON
EON
MODE
INPUT
SELECTOR
MASTER
VOLUME
FL
DIMMER
DOWN
UP
Type
Model
Power Requirement
The voltage can be converted by the
VSX-908RDS
VSX-908RDS-G
following method.
HY/EW
AC220-230V
AC240V,
HY/GR
AC220-230V
AC240V,
HV
AC230V
AC240V,
HY
AC220-230V
AC240V,
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
:Alter the wiring of the Power-supply block at the primary winding of Power-transformer referring to the "Line Voltage Selection" described
in Service Manual.
2
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-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
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.
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
on the schematics and on the parts list
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.
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.
(FOR USA MODEL ONLY)
Leakage
current
tester
Reading should
not be above
0.5mA
Device
under
test
Test all
exposed metal
surfaces
Also test with
plug reversed
(Using AC adapter
plug as required)
Earth
ground
AC Leakage Test
3
VSX-908RDS, VSX-908RDS-G
2.1 PACKING
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.
Refer to
"7.3 REMOTE
CONTROL UNIT".
1
2
13
13
3 (Except HY/GR Type)
14 (Except HV Type)
15, 16, 17, 18, 19, 20
(HY/EW and HY Types Only)
12
11
10
5
4
7 (1/2)
7 (2/2)
8
9
(1) PACKING PARTS LIST
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
Mark No.
Description
Part No.
11
Polyethylene Bag
Z21-038
(0.03
×230×340)
NSP
12
Warranty Card
ARY7022
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-908RDS VSX-908RDS VSX-908RDS VSX-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
4
VSX-908RDS, VSX-908RDS-G
A
B
G
F
F
E
E
N
L
I
K
H
H
J
G
I
J
O
O
M
M
N
L
K
P
P
(HV Type Only)
80
81
68
20
27
79
67 *1
77 *2
(Except HV Type)
(Except HV Type)
73
73
10
11
71
71
43
24
25
21
6
73
67 *1
77 *2
67 *1
77 *2
26
83
43
67
70
67
69
53
69
32
8
67 *1
77 *2
62
52
52
52
7
72
66
36
48
49
40
49
49
34
45
50
51
39
29
5
9
18
67
51
67 *1
77 *2
67 *1
77 *2
38
35
2
3
4
55
70
70
70
70
44
44
42
42
19
67 *1
66 *2
67 *1
77 *2
67 *1
77 *2
67 *1
77 *2
67 *1
66 *2
67 *1
66 *2
67 *1
66 *2
67 *1
66 *2
67 *1
66 *2
67 *1
66 *2
67 *1
66 *2
Note *1 : VSX-908RDS
*2 : VSX-908RDS-G
67 *1
66 *2
67 *1
26
(HV Type Only)
66 *2
67 *1
66 *2
59
50
58
Refer to
"2.4 FRONT PANEL SECTION".
Refer to
"2.3 HEAT SINK SECTION".
64
37 15
23
33
13
54
12
16
30
17
63
28
31
65
22
51
82
78
75
20
(Except HV Type)
84
84
2.2 EXTERIOR
5
VSX-908RDS, VSX-908RDS-G
1
· · · · ·
NSP
2
EXTERNAL IN Assy
AWX7413
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
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
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
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
Mark No.
Description
Part No.
Mark No.
Description
Part No.
(1) EXTERIOR PARTS LIST