Pioneer pd 204 service manual

Page 1

Service
Manual

(U) PIONEER

The Art of Entertainment

COMPACT DISC PLAYER

PD-2

PD-1 04
PD-OO4

ORDER NO.
RRV1 324

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

Model
Type Power Requirement The voltage can be converted by the
130-204 PD-104 PD-004 °°W'9 memd-
WEMXK O O - AC220 - 240V
WBWXK O O - A0220 - 240v
WPWXJ O O - AC220 - 240V
WLXJ O O - A0220 - 240V
RDXJ O O -- A0110 - 127V/220 - 240V With the voltage selector
WEXK/FR - - '3 A0220 - 240V
CONTENTS
1. SAFETY INFORMATION ......................................... 2
2. EXPLODED VIEWS, PACKING AND PARTS LIST ..3
3. SCHEMATIC AND PCB CONNECTION
DIAGRAM ................................................................ 9
4. PCB PARTS LIST .................................................. 18
5. ADJUSTMENTS .................................................... 20
6. IC INFORMATION ................................................. 29
7. BLOCK DIAGRAM ................................................. 31
8. CONTRAST OF MECELLANEOUS PARTS .......... 32
9. PANEL FACILITIES ............................................... 36
10. SPECIFICATIONS ................................................. 36

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE INC. PO. Box 1760, Long Beach, California 90801 U.S.A.

PIONEER ELECTRONICS OF CANADA, INC. 300 Allstate Parkway Markham, Ontario L3H 0P2 Canada

PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele. Belgium

PIONEER ELECTRONICS AUSTRALIA PTY. LTD.

© PIONEER ELECTRONIC CORPORATION 1995

178-184 Boundary Road, BraeSIde. Victoria 3195, Australia TEL : [03] 580-9911

T-SSK APR. 1995 Primed in Japan

Page 2

PD-204, PD-104, PD-004

1. SAFETY INFORMATION

__ (FOR EUROPEAN MODEL ONLY)

VARO'
AVATTAESSA JA SUOJALUKITUS
OHITETTAESSA OLET ALTTIINA
NAKYMATTOMALLE LASERSATEILYLLE.
ALA KATSO SATEESEEN.

-I

ADVERSEL:
USYNLIG LASERSTRALING veo ABNING
NAB SIKKERHEDSAFBRYDERE ER UDE AF
FUNKTION UNDGA UDSAETTELSE FOR
STRALING.

VARNING!
OSYNLIG LASERSTRALNING NAR (JENNA
DEL AR OPPNAD OCH SPARREN
An URKOPPLAD. BETRAKTA EJ STRALEN.

LASER

Kuva I
Lascrsateilyn
varouusmcrkki

WARNING'
DEVICE INCLUDES LASER DIODE WHICH
EMITS INVISIBLE INFRARED RADIATION
WHICH IS DANGEROUS TO EYES. THERE IS
A WARNING SIGN ACCORDING TO PICTURE
l INSIDE THE DEVICE CLOSE TO THE LASER

DIODE.

IMPORTANT
THIS PIONEER APPARATUS CONTAINS
LASER OF CLASS I.
SERVICING OPERATION OF THE APPARATUS
SHOULD BE DONE BY A SPECIALLY
INSTRUCTED PERSON.

- LASER DIODE CHARACTERISTICS --

MAXIMUM OUTPUT POWER: 5 mw
WAVELENGTH: 780-785 nm

LASER

Picture I
VVarnhtg sign IOI
laser radiatIon

LABEL CHECK

WBWXK, WPWXJ and WLXJ types

CAUTION
INVISIBLE LASER
RADIATION WHEN OPEN.
AVOIO EXPOSURE

WEMXK, WBWXK, WLXJ
and WEXKIFR types

WEMXK and WEXK/FR types

ADVARSEL
USYILIE Imusrmm; vw W m smmtc w-
mm: tn no: A: rip-mow.

moot 0051mm: Ion 31mm.

VORSICHTI
mutant Inn-stamina mrr ms. wm mm
Iona Kurm noun an not: new 5M1 weanin-

T0 BEAM

PRWIOIB

VAIO I

Mutton-e 1| Iuojlluutun ohluttn-
an on: Mulla- nun-tumult.
llltrlltlilyllt.A1I lune teen-n.

CLASS 1
LASER PRODUCT

VWDIG!

"W" firms-u?:;:::I:'.:':.:;:;:.3
Mum. .5 gun. MIN:
WEMXK, WBWXK, WLXJ
and WEXK/FR types WEMXK and WEXKIFR types

WWIW

Additional Laser Caution

1. Laser Interlock Mechanism

The position of the switch (8601) for detecting loading
state is detected by the system microprocessor, and the
design prevents laser diode oscillation when the switch
(8601) in not CLMP terminal side (when CLMP signal is
OFF or high level).

Thus, the interlock will no longer function if the switch
(8601) is deliberately set to CLMP terminal side (low
level).

The interlock also dose not function in the test mode *.
Laser diode oscillation will continue. if pin 1 of M51593FP
(IC101) on the PRE AMP BOARD ASSY mounted on the
pickup assembly is connected to GND. or pin 19 is
connected to low level (ON), or else the terminals of Qi 01
are shorted to each other (fault condition).

. When the cover is opened, close viewing of the objective

lens with the naked eye will cause exposure to a Class 1
laser beam. 928! B

=I= Refer to page 21;