Pioneer vsxd 638 g service manual

Page 1

Service
Manual

AUDIO/VIDEO MU LTI-CHANNEL RECEIVER

Pioneer

ORDER NO.
RRV2154

VSX-D638-

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Type Model Power Requirement The voltage can be converted by
VSX-D638-G the followmg method.
HLXJI O A0220-230V A0240 *
LBXJI O AC110V
YPWXJI O ACZ40V _

* :Alter the wiring of the Poweresupply block at ihe primary winding of P0wer4ransf0rmer referring to the "Line Voltage Selection" described

in Service Manual.

0 This service manual should be used together with the following manual(s):

Model Order No. Remarks
VSX-SOSRDS/HYXJI RRV2115
CONTENTS
1. CONTRAST OF MISCELLANEOUS PARTS -------- 2
2. SCHEMATIC DIAGRAM ....................................... 5

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE, INC. P.O. BOX1760, Long Beach, CA 90801-1760, U.S.A.

PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melseie, Belgium

PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

©P|ONEER ELECTRONIC CORPORATION 1999

T -ZZK JUNE 1999 Printed in Japan

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VSX-D638-G

1. CONTRAST OF MISCELLANEOUS PARTS

NOTES: OParts marked by "NSF" are generally unavailable because they are not in our Master Spare Parts List.
I The /I\ markfound 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.
0 Screws adjacent to Y mark on product are used for disassembly.
lReference Nos. indicate the pages and Nos. in the service manual for the base model.
I When ordering resistors, first convert resistance values into codeform as shown in thefollowing examples.
Ex! When there are 2 effective digits (any digit apartfrom 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%,
and K=10%).

560 - 56 X 10 - 561 ------------------------------
47k a 47X10 » 473
0.5 - R50 --
1 ~ 1R0 - RSIP-EflK
EX.2 When there are 3 eflective digits (such as in high precision metalfilm resistors).
5.6Zk d 562 X 10 - 5621 --------- -- ----- RNI/4PCI
l CONTRAST TABLE
VSX»D638-G/HLXJI, LBXJI, YPWXJI and VSX-808RDS/HYXJI are constructed the same except for the following :
Part No.
Ref. No. Mark Symbol and Description VSX-808RDS VSX-D638-G VSX-D638-G VSX-D638-G Remarks
/HYXJI /HLXJI lLBXJI /YPWXJI
ASSEMBLIES
INPUT ASSY AWK7474 AWK7475 AWK7475 AWK7475
P5- 1 INPUT ASSY AWX721O AWX7365 AWX7365 AWX7365
P5- 2 FRONT ASSY AWX7217 AWX7218 AWX7218 AWX7218
AMP ASSY AWK7482 AWK7482 AWK7507 AWK7506
P5- 5 AMP ASSY AWX7226 AWX7226 AWX7370 AWX7226
P5- 7 TRANS 1 ASSY AWX7287 AWX7287 AWX7287 AWX7369
PACKING SECTION
P3- 3 Operating Instructions (English) ARB7158 ARB7160 ARB7160 ARB7160
P3- 5 FM Antenna ADH7005 ADH7005 ADH7004 ADH7005
P3- 7 NSF Warranty Card ARY7022 Not used Not used ARY7027
P3- 8 Remote Control Unit (CU-VSXMO) AXD7181 Not used Not used Not used
P3- 8 Remote Control Unit (CU-VSX138) Not used AXD7178 AXD7178 AXD7178
P3-13 Packing Case AH D7695 AHD7696 AHD7697 AH D7697
P3-14 Operating Instructions (German) ARC7203 Not used Not used Not used
P3-15 Operating Instructions (French/Italian) ARC7204 Not used Not used Not used
P3-16 Operating Instructions (Swedish/Dutch) ARC7205 Not used Not used Not used
P3-17 Operating Instructions ARC7206 Not used Not used Not used
(Portuguese/Spanish)
Operating Instructions (Chinese) Not used ARC7256 ARC7256 Not used
EXTERIOR SECTION
P5-18 A Power Transtormer (T1) ATS7242 Not used Not used ATS7242
(A0220-230V/240V)
P5-18 A Power Transtormer (T1) (A0220-230V) Not used ATS7243 Not used Not used
P5-18 A Power Transtormer (T1) (AC110V) Not used Not used ATS7244 Not used
P5-19 A Fuse (FU1 :T2.5A) REK-104 REK-104 Not used REK-104
P549 A Fuse (FU1 :T5A) Not used Not used AEK1061 Not used
P5-26 A AC Power Cord VDG1061 VDG1061 VDG1058 VDG1065
P5-29 Tuner Holder AAD7490 AAD7492 AAD7492 AAD7492