Pioneer vsx 425 service manual

Page 1

GD PIONEER

The Art of Entertainment

Service _
Manual

RRV1598

AUDIO/VIDEO STEREO RECEIVER

VSX-405

VSX-295
VSX-425

0 Refer to the service manual RRV1467 for VSX-405IKUXJ.

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODELIS) AND TVPEISI.

SDXJ O O - AC110V/120-127V/220V/240V WiIh the voltage selector
HLXJ - - O AC220-230V AC240V, *
YPWXJ - - O AC240V

*: Alter (he wiring of the Power-supply block at the primary winding of power transformer referring to the "Line Voltage Selection"
described in Service Manual.

CONTENTS
1. CONTRAST OF MISCELLANEOUS PARTS ......
2. SCHEMATIC DIAGRAMS ....................................

PIONEER ELECTRONIC CORPORATION 4-1. Meguro 1«Chome. Megurcrku, Tokyo 153, Japan

PIONEER ELECTRONICS SERVICE, INC. ROI Box 1750, Long Beach. CA 9030I-1 7504 U. 5. Ar

PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087 KeetbergIaan 1, 9120 Melselel Belgium

PIONEER ELECTRONICS ASIACENTHE PTE. LTD. 501 Orchard Road #1000 Lane Crawford Place. Smgapore 0923

© PIONEER ELECTRONIC CORPORATION 1996 T-SSM APR 1995 pnmed In Japan

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VSX-405, VSX-295, VSX-425

1. CONTRAST OF MISCELLANEOUS PARTS

NOTES:
0 Parts marked by NSP"are generally unavailable because Ihe) are not in our Master Spare Parts List.
0 The A mark found on some component parts indit'alex rhe important? of the .rafen'fitcmr of the part. Therefore. when replacing, he sure
la rue parts of identical designation.
' Part: marked by Q "are no! always kept in flack. Their delivery lime may be [anger than usual or they may be unavailable.
' When ordering resistors, first convert resistance value: into rodefnrm as shown in Ihefollawing examples.
Ex! When there are 2 eflecrive digitx (any digit apart/mm (I), xuch as 560 ohm and 47K hm (tolerance is shown by J=57r. and
K=10%)_
560 Q -> 56 X [0-> 56]
47k!) *0 47 X10'-' 473

RDl/4PU [3mm J
RDI/4PU

Q50 *0R5 RNZH [GEEK
[Q _. gown... ....................................................................... stp m-Im K
Ex] When there are 3 efie digits (such as in high precision metal film resistant).
5.62 k9 -. 562 X 101-. 562] .............................................................. RNl/4PC Elam F

I CONTRAST OF VSX-405/SDXJ, VSX-Z95ISDXJ, VSX-425/HLXJ. YPWXJ AND VSX-405/KUXJ
VSX-405/SDXJ. VSX-295/SDXJ. VSX-425lHLXJ. YPWXJ and VSX-405/KUXJ have the same construction except for the following:

Part No.
Mark Symbol 5t Description VSX-dOS va-295 VSX-425 Remarks
KUXJ SDXJ SDXJ HLXJ VPWXJ
NSP MAIN Assy AWK7228 AWK7246 AWK7249 AWK7247 AWK7247
MOTHER Assy AW28053 AW28054 AW28059 AW28055 AWZBOSS
FL AND UCOM Assy AWZSOSO AWZSOGO AW28064 AW28373 AWZB373
VIDEO Assy AWZSOGS AWZESBO AW28380 AW28380 AWZB380
SP. SW AND HP Assy AW28068 AW28068 AW28068 AW28376 AW28376
NSF PRIMARY Assy AWZB3SB Not used Not used AWZBSBB AWZB368
NSP AMP AND VOL. Assy AWK7232 AWK7250 AWK7253 AWK725I AWK7251
AMP Assy AW28074 AW28074 AW28077 AW28372 AW28372
VOL. Assy AWZBO78 AW28078 AW28081 AWZBO78 AWZBO78
NSP PRIMARV Assy Not used AWZ8375 AW28375 Not used Not used
PACKING
Operating instructions ARB7065 ARB7065 ARB7065 Not used ARB7066
(English)
Operating instructions Not used Not used Not used ARE7061 Not used
(English/Chinese)
Operating Instructions Not used ARC7105 ARC7105 Not used Not used
(Chinese/Spanish)
Remote Control Unit AXD7083 AXD7083 Not used AXD7083 AXD7083
lCU-VSX105)
Remote Control Unit Not used Not used AXD7088 Not used Not used
lCU-VSXHO l
Packing Case AHD7268 AHD7274 AHD7272 AHD7275 AHD7Z75
NSP Warranty Card ARY1051 Not used Not used Not used PRY1003
Caution 220V Label Not used ARR1003 ARR1003 Not used Not used
EXTERIOR
A Power Transformer (AC120V) ATS7108 Not used Not used Not used Not used
A Power Transformer Not used ATS7110 ATS7110 Not used Not used
(A0110V/120-127V/220V/240VI
A Power Transformer Not used Not used Not used ATS7111 AT$7111
(AC220-230V/240Vl
A Fuse 11A. FU3, FUA) REK1075 REK1075 REK1075 Not used Not used
A Fuse (TlA. FU3. FU4) Not used Not used Not used AEKIOSd AEK1054
A Fuse (6.3A, FU1) REK1085 Not used Not used Not used Not used
A Fuse (3.15A, FU1, FU2) Not used REK1081 REKlOSl Not used Not used No.1
A Fuse lT2.5A, FU1) Not used Not used Not used AEKIOSB AEK1058
A Voltage Selector 51 Not used AKX-SO7 AKX-507 Not used Not used No. 2
A Voltage Selector 82 Not used AKXIOOA AKX1004 Not used Not used No. 3