ORDER NO.
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
PIONEER ELECTRONIC CORPORATION 1999
c
VSX-D508
RRV2086
1. SAFETY INFORMATION ...................................... 2
2. EXPLODED VIEWS AND PARTS LIST ................ 3
3. SCHEMATIC DIAGRAM ....................................... 6
4. PCB CONNECTION DIAGRAM .......................... 26
5. PCB PARTS LIST ............................................... 39
6. ADJUSTMENT .................................................... 47
CONTENTS
7. GENERAL INFORMATION ................................ 48
7.1 PARTS .......................................................... 48
7.1.1 IC ........................................................... 48
7.1.2 DISPLAY ................................................ 51
7.2 DISASSEMBLY ............................................ 53
7.3 BLOCK DIAGRAM ........................................ 55
7.4 REMOTE CONTROL UNIT .......................... 56
[CU-VSX138 (AXD7178)]
8. PANEL FACILITIES AND SPECIFICATIONS .... 60
T IZK JAN. 1999 Printed in Japan
Type
Model
Power Requirement
Remarks
VSX-D508
KUXJI
AC120V
KCXJI
AC120V
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
STANDBY/ON
STANDBY
PHONES
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-D508
STATION
TUNING
SELECT
SIGNAL
SELECT
MIDNIGHT
DOWN
UP
BASS
TREBLE
VCR
DVD/LD
TV/SAT
VIDEO
CD
FM/AM
MD/TAPE 1
B
LOUDNESS
TAPE 2
MONITOR
DIRECT
VIDEO
VIDEO
INPUT
L
MASTER
VOLUME
CLASS
MEMORY
MPX
MODE
+
+
+
+
FREQUENCY
DSP
MODE
AUDIO
R
A
SPEAKERS
DVD 5.1CH
2
VSX-D508
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-D508
2.1 PACKING
(1) PACKING PARTS LIST
Mark No.
Description
Part No.
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.
1
Packing Sheet
AHG7010
NSP
2
Alkaline Dry Cell Battery
VEM1012
(LR6, AA)
3
Operating Instructions
See Contrast table (2)
4
Sub Instruction Manual
ARH7039
(System Set up)
5
FM Antenna
ADH7004
6
AMLoop Antenna
ATB7009
NSP
7
Warranty Card
See Contrast table (2)
8
Remote Control Unit
AXD7178
(CU-VSX138)
9
· · · · ·
10
Polyethylene Bag
Z21-038
(0.03
×230×340)
11
Front Pad 508
AHA7236
12
Rear Pad 508
AHA7237
13
Packing Case 508UC
AHD7643
4
5
6
7
5
6
3
8
2
10
11(1/2)
11(2/2)
12(2/2)
12(1/2)
1
13
Mark No.
Symbol and Description
Part No.
Remarks
KUXJI Type
KCXJI Type
3
Operating Instructions (English)
ARB7157
Not used
3
Operating Instructions (English/French)
Not used
ARE7179
NSP
7
WarrantyCard
ARY7023
ARY7024
(2) CONTRAST TABLE
VSX-D508/KUXJI and KCXJI are constructed the same except for the following :
4
VSX-D508
2.2 EXTERIOR
K
J
D
L
K
I
F
G
C
G
F
H
B
J
I
C
D
E
L
E
B
H
A
A
32
57
57
57
57
57
57
57
57
57
57
23
67
13
29
57
38
39
39
57
57
57
Accessories of
Front Panel 508
(No. 47)
57
70
Note
1 :
Torque is 12
kg · cm
57
21
25
22
2
57
59
59 53
57
47
9
36
37
30
57
57
1
58
34
17
24
52
16
4
11
12
26
28
31
60
60
57
53
69
66
1
1
68
57
61
57
57
64
65
65
62
63
57
57
57
58
71
(KCXJI
Type
Only)
20
19 54
10
55
55
18
33
5
8
7
57
40
57
57
57
35
27
59
59
44
50
53
57
49
56
42
46
41
51
6
43
3
40
+ 2
0
5
VSX-D508
1
INPUT Assy
AWX7207
2
FRONT Assy
AWX7212
NSP
3
POWER SW Assy
AWX7222
NSP
4
REAR SP Assy
AWX7250
5
AMP Assy
See Contrast table (2)
NSP
6
HEADPHONE Assy
AWX7229
7
TRANS 1 Assy
AWX7231
8
TRANS 2 Assy
AWX7232
NSP
9
FRONT VIDEO Assy
AWX7239
10
BARRIER Assy
AWX7284
NSP
11
F.SP.CONNECT Assy
AWX7285
NSP
12
R.C.SP.CONNECT Assy
AWX7286
13
VIDEO Assy
AWX7234
14
· · · · ·
15
· · · · ·
16
FRONT SP. Assy
AWX7243
17
DOLBY DIGITAL Assy
AWX7333
18
Power Transformer (T1)
See Contrast table (2)
19
Fuse (FU1 : 10A)
REK1087
20
Fuse (FU2 : 7A)
VEK1027
21
FFC 21P (J2)
ADD7100
22
FFC 15P (J4)
ADD7102
23
FFC 13P (J5)
ADD7103
24
FFC 17P (J8)
ADD7107
25
FFC 26P (J3)
ADD7118
26
AC Power Cord
ADG7024
NSP
27
8P Shield Cable (J6)
ADX7242
28
Cord Stopper
CM-22C
29
Tuner Holder B
AAD7490
NSP
30
Under Base D5
ANA7079
31
Rear Panel
See Contrast table (2)
32
Bonnet Case
AZN7762
33
Trans Frame
ANG7193
34
DSP Shield
ANG7196
NSP
35
Heat Sink Assy D5
ANH7095
36
Insulator
PNW2766
37
Locking Card Spacer
AEC7160
38
PCB Mold
AMR2533
NSP
39
Card Spacer
DEC1770
NSP
40
Binder
RNE1277
41
Volume Knob 508
AAB7179
42
Sub Panel 508
AAD7482
43
Function Button
AAD7483
44
Power Button
AAD7440
45
· · · · ·
46
Display Window R508
AAK7579
47
Front Panel 508
AMB7525
48
· · · · ·
49
Name Plate
PAM1776
50
LED Lens
PNW2019
51
· · · · ·
52
· · · · ·
53
Screw
ABA7009
54
Screw
ABA7043
55
Screw
ABA7044
56
· · · · ·
57
Screw
BBZ30P080FZK
58
Screw
BBZ30P200FMC
59
Screw
BPZ30P080FMC
60
Screw
FBT40P080FZK
NSP
61
Binder (BK-1)
ZCA-BK1
62
Heat Sink Angle F
ANG7194
63
Heat Sink Angle R
ANG7195
NSP
64
Heat Sink D5
ANH7090
65
Screw
BBZ30P080FMC
NSP
66
FET Assy
AWX7228
67
FM/AM TUNER Unit
AXX7046
68
Sheet
AEE7026
69
FET Angle
ANG7186
70
Foot Assy
REC1263
71
Fuse (FU701 : 10A)
See Contrast table (2)
(1) EXTERIOR PARTS LIST
Mark No.
Description
Part No.
Mark No.
Description
Part No.
Mark No.
Symbol and Description
Part No.
Remarks
KUXJI Type
KCXJI Type
5
AMP Assy
AWX7223
AWX7331
18
Power Transformer (T1)
ATS7234
ATS7235
31
Rear Panel 508U
ANC7700
Not used
31
Rear Panel 508C
Not used
ANC7751
71
Fuse (FU701 : 10A)
Not used
REK1087
(2) CONTRAST TABLE
VSX-D508/KUXJI and KCXJI are constructed the same except for the following :