Pioneer pdm 426 service manual

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The Art of Entertainment

Service

Manual
RRV1 868
MULTI COMPACT DISC PLAYER
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type ------------------------------------------------------------------- Power Requirement The voltage can be converted by the foIIowing method.
PD-M426
KUXJ/2 O A0120V -
KCXJ/2 O AC120V -
WYXJ/2 O AC220-240V -
WPWXJ/2 O ACZ20-24OV -
RDXJ/2 O AC110-127V/220-240V With the voltage selector
CONTENTS
1. SAFETY INFORMATION .................................... 2 7. GENERAL INFORMATION .............................. 29
2. EXPLODED VIEWS AND PARTS LIST ............. 4 7.1 DISPLAY .................................................... 29
3. SCHEMATIC DIAGRAM ................................... 10 7.2 BLOCK DIAGRAM ...................................... 30
4. PCB CONNECTION DIAGRAM ....................... 14 8. PANEL FACILITIES AND SPECIFICATIONS
5. PCB PARTS LIST ............................................. 18 ................................................................... 31
6. ADJUSTMENT .................................................. 21

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE, INC. PO. Box 1760, Long Beach, CA 90801-1760, USA.

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

PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #1000 Lane Crawford Place, Singapore 0923

© PIONEER ELECTRONIC CORPORATION 1997 T-DZR OCT. 1997 Printed in Belgium

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PD~M426

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

Lead in solder used in this product is listed by the California Health and Weifare agency as a known reproductive toxicant which
may cause birth defects or other reproductive harm (California Health & Safety Code, Section 25249.5).

When servicing or handling circuit boards and other components which contain lead in solder, avoid unprotected skin contact with
the solder. Aiso, when soldering do not inhale any smoke or fumes produced.

NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols I (fast operating fuse) and/or I (slow operating fuse) on PCB indicate that replacement parts

must be of identical designation.

REMARQUE
(POUR MODELE CANADIEN SEULEMENT)
Les symboles de fusible I (fusible de type rapide) et/ou I (fusibie de type lent) sur CCI indiquent que les

pieces de remplacement doivent avoir la meme designation.

- (FOR USA MODEL ONLY)

t. SAFETY PRECAUTIONS ANY MEASUREMENTS NOT WITHIN THE LIMITS

The following check should be performed for the OUTLINED ABOVE ARE INDICATIVE OF A PO-
continued protection of the customer and service TENTlAL SHOCK HAZARD AND MUST BE con-
technician. RECTED BEFORE RETURNING THE APPLIANCE
LEAKAGE CURRENT CHECK To THE CUSTOMER.

Measure ieakage current to a known earth ground

(water pipe, conduit, etc.) by connecting a leakage 2- PRODUCT SAFETY NOTICE

current tester such as Simpson Model 229-2 or Many electrical and mechanical parts in the appli'
equivalent between the earth ground and all exposed ance have special safety related characteristics. These
metal parts of the appliance (input/output terminals, are often not evident from visual inspection nor the
screwheads, metal overlays, control shaft, etc). Plug protection afforded by them necessarily can be 0P
the AC line cord of the appiiance directly into a 120v tained by using replacement components rated for
AC 60 Hz outlet and turn the AC power switch on. Any voitage, wattage , etc. Replacement parts which have
current measured must not exceed 05 mA. these special safety characteristics are identified in

this Service Manual.
Electrical components having such features are
identified by marking with a A on the schematics and

Reading should on the parts list in this Service Manual.
Leakage 305: Eniebove The use of a substitute replacement component which
Device Cttérsrteergt ' does not have the same safety characteristics as the
under PIONEER recommended replacement one, shown in
teSt + - the parts list in this Service Manual, may create shock,
T fire, or other hazards.

est all exposed . . .
metal surfaces Product Safety is continuously under reVlew and
new instructions are issued from time to time. For
. Also (93, with mg the latest information, always consuit the current
I reversed PIONEER Service Manual. A subscription to, or ad-

(Usmg AC adapter , . .

@ plug as required) ditlonal copies of, PIONEER Sen/Ice Manual may be

7 Earth ground obtained at a nominal charge from PIONEER.
AC Leakage Test