Pioneer pd 93 service manual

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(U) PIONEER

The future of sound and vision.

Sefiicc

I W E:
811118 E = Mr» ORDER. NO.
ARP2058
COMPACT DISC PLAYER
MODEL PD-93 HAS FOLLOWING VERSIONS:
Type Power requirement Export destination
KU/ CA ACi 20V only U.S.A. and Canada
HEM AC220V. 240V (switchable) * European cominem

*Change the primary wiring of the power transformer.
.Thls manual ls applicable to the KU/CA and HEM types.
.Ce rnanuel pour le service comprend Ies explications de réglage en franqals.
.Este manual de servicio trata del método aiuste escrlto en espafiol.

CONTENTS
1. SAFETY INFORMATION ............................... 2 7 [QB-s PARTS LIST ..................................... 44
2_ DISASSEMBLY ............................................ 4 3 ADJUSTMENTS ..... .. 49
3. OPERATION CHECK OF MAIN BOARD 84 REGLAGES -- 64
ASSEMBLY .. 8 AJUSTES ----- ~79
4. EXPLODED VIEWS AND PARTS LIST -- 9. IC DESCRIPTIONS (CXD116SQ) -------------------- 94
5. LINE VOLTAGE SELECTION ------------------------ 19 10. PANEL FACILITIES---- 96
6. SCHEMATIC AND P.C. BOARDS 11. SPECIFICATIONS 97

CONNECTION DIAGRAMS ............................ 20

PIONEER ELECTRONIC CORPORATION 44 Meguro 1-Chome, Meguro-ku, Tokyo 153. Japan

PIONEER ELECTRONICS SERVICE INC. PO. Box 1760, Long Beach. California 90601 USA

PIONEER ELECTRONICS OF CANADA, INC. 505 Cochrane Drive, Markham. Ontario L3H 8E3 Canada

PIONEER ELECTRONIC [EUROPE] N.V. Keelberglaan 1, 2740 Beveren, Belgium

PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 178-184 Boundary Road. Braeside. Victoria 3195. Australia TEL: 103] 580-9911

© PIONEER ELECTRONIC CORPORATION 1990 5. JUNE 1990 Mm, in mm

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leOR USA MODEL ONLY)

This service manual is intended for qualified service technicians; it is not
meant for the casual do-it-yourselfer. Qualified technicians have the neces-
sary 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 Welfare agency as
a known reproductive toxicant which may cause birth defects or other reproductive harm

(California Health 8: Safety Code, Section 25249.5).

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

any smoke or fumes produced.

1. SAFETY INFORMATION

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 ACline 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.

_\_

0 Reading should
Leakage not be above

Device current O5mA
under tester
test
Test all
exposed metal
surfaces
2~wire cord

@ Also test with
plug reversed
(Using AC adapter
plug as required)

Earth
ground

AC Leakage Test

ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A PO-
TENTIAL SHOCK HAZARD AND MUST BE COR-
RECTED BEFORE RETURNING THE APPLIANCE TO
THE CUSTOMER.

2. PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in the appli-
ance have special safety related characteristics. These
are often not evident from visual inspection nor the
protection afforded by them necessarily can be ob-
tained by using replacement components rated for vo|~
tage, wattage, etc. Replacement parts which have
these special safety characteristics are identified in
this Service Manual.

Electrical components having such featJres are

identified by marking with a A on the schematics and
on the parts list in this Service Manual.
The use of a substitute replacement component which
dose 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 tirne. For
the latest information, always consult the current
PIONEER Service Manual. A subscription to, or ad-
ditional copies of, PIONEER Service Manual may be
obtained at a nominal charge from PIONEER.