Pioneer pd 91 service manual

Page 1

GD PIONEER

The future of sound and vision.

Serf/ice
flanual I A ORDER No.
ARP 1507

COMPACT DISC PLAYER

MODEL PD-91 HAS TWO VERSIONS:

Type Power requirement Export destination
KU/CA AC 120 V only USA. and Canada
HEM AC 220 V, 240 V (switchable) European continent

O This manual is applicable to the KU/CA and HEM types.

0 For the HEM type, refer to pages 133 and 134.

0 Ce manuel pour le service comprend Ies explications en frangais de réglage. (p. 59 - p. 73).
O Este manual de servicio trata del método ajuste escrito en espafiol. (p. 74 - p. 88).

CONTENTS
1. SAFETY INFORMATION .................................. 1o. ADJUSTMENTS
2. SPECIFICATIONS ....... REGLAGE
3. PANEL FACILITIES. AJUSTE ......
4. DISASSEMBLY ........... 11. BLOCK DIAGRAM .89
5. EXPLODED VIEWS AND PARTS LIST .. 12. PICK-UP DESCRIPTION .91
6. RC. BOARDS CONNECTION DIAGRAM .. 13. CIRCUIT DESCRIPTION .............. .
7. SCHEMATIC DIAGRAM ..... 14. MECHANISM DESCRIPTION. 21
8. ELECTRICAL PARTS LIST. .. 15. IC INFORMATION ..... -125
9. PACKING .................................................................... 43 16. FOR HEM TYPE.... -133

PIONEER ELECTRONIC CORPORATION 4-1. Meguro 1-Chome. Meguro-ku. Tokyo 153. Japan

PIONEER ELECTRONICS SERVICE MC. PO. Box 1750, Long Beach, California 90801 USA.

PIONEER ELECTRONICS OF CANADA, INC. 505 Cochrane Drive, Markham, Ontario LSR 863 Canada

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

PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 178-184 Boundary Road, BIaeSide, Victoria 3195. Australia TEL: [03] 5580-9911

M 0 MAR. 1988 Printel in Japan.

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1. SAFETY INFORMATION

-(FOR USA MODEL ONLYI

1.SAFETY PRECAUTIONS

The following check should be performed for the con-
tinued 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, con-
trol shaft, etc.). Plug the AC line 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.

Leakage
cu rrent
tester

Reading should
not be above
0.5mA

Device
under
test

Test all
exposed metal
surfaces

Qt 2-wire cord

® Also test with
plug reversed :-
(Using AC adapter ground
plug as required)

AC Leakage Test

ANY MEASUREMENTS NOT WITHIN THE LIMITS OUT-
LINED ABOVE ARE INDICATIVE OF A POTENTIAL
SHOCK HAZARD AND MUST BE CORRECTED
BEFORE RETURNING THE APPLIANCE TO THE
CUSTOMER.

2. PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in the appliance
have special safety related characteristics. These are often
not evident from visual inspection nor the protection at-
forded by them necessarily can be obtained by using re-
placement components rated for voltage, wattage, etc. Re-
placement parts which have these special safety charac-
teristics are identified in this Service Manual.

Electrical components having such features 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
does 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 time. For the latest
information, always consult the current PIONEER Serv»
ice Manual. A subscription to, or additional copies of,
PIONEER Service Manual may be obtained at a nominal
charge from PIONEER.

(FOR EUROPEAN MODEL ONLY)

~VAROITUSI
LAITE SISALTAA LASERDIODIN, JOKA
LAHETTA/t NAKYMATONTA, SILMILLE
VAARALLISTA INFRAPUNASATEILYA
LAITTEEN SISALLA 0N LASERDIODIN
LAHEISYYDESSA KUVANII. MUKAINEN
VAROITUSMERKKI.

LASER

Kuva 1
Lasersateilyn
wroitusmerkki

ADVERSEL:
USYNLIG LASERSTRALING VED ABNING
NAR SIKKERHEDSAFBRYDERE ER UDE
AF FUNKTION UNDGA UDSAETTELSE
FOR STRALING.

- VIKTIGT
APARATEN INNEHALLER LASER AV HoGRE
K1._Ass AN 1. INGREPP I APPARATEN BOR
GORAS AV SPECIELLT UTBILDAD PERSONAL

WARNING!

DEVICE INCLUDES LASER DIODE WHICH
EMITS INVISIBLE INFRARED RADIA-
TION WHICH IS DANGEROUS TO EYES.
THERE IS A WARNING SIGN ACCORDING LASER
T0 PICTURE 1 INSIDE THE DEVICE

Picture 1
CLOSE TO THE LASER DIODE.

Warning sign for
laser radiation

IMPORTANT
PIONEER COMPACT DISC PLAYER APPARA-
TUS CONTAINS LASER OF HIGHER CLASS
THAN 1. SERVICING OPERATION OF THE AP-
PARATUS SHOULD BE DONE BY A SPECIALLY
INSTRUCTED PERSON.

r.

3.