Pioneer pd 7050 service manual

Page 1

ORDER NO.
ARP1 331

COMPACT DISC PLAYER

D'7050
PD-7050-S

MODEL PD-7050 AND PD-7050-S COMES IN FIVE VERSION DISTINGUISHED AS FOLLOWS:

Amalie-bl- modal
Typo Povnr rtquinrmnt Exam dmirmion
ID-7050 PD-7050-S
KU O - ACIZDV anlv U.S.A.
KC 0 - AC1 20V only Canada
HEM O O AC220V, 240V (switchabie) «I European continent
H5 0 -- ACZZUV, 240V (switchable) ' Unitad Klngdom
SD 0 - A01 10V. 120-127V, 220V, 240V (switchable) General market

" Change tho position Of jumper Of the Transformer board assembly.

This service manual is applicable to the KU, KC, HEM. HB and SD types.
As to the KC, HEM, HB and SD types, please refer to pages 76.

Ce manuel d'instruction se refers au mode do réglage en frangais.
Esta manual de servicio trata deI método ajuste escrito en espafiol.

CONTENTS

O...

I. SAFETY INFORMATION ............... 2 9. ELECTRICAL PARTS LIST .............. 33
2. SPECIFICATIONS ..................... 4 Io. ADJUSTMENTS ...................... 36
3. PANEL FACILITIES ................... 5 REGLAGE .......................... 49
4. DISASSEMBLY ....................... 9 ADJUSTE ........................... 62
5. EXPLODED VIEWS AND PARTS LIST ..... 13 II. REMOTE CONTROL UNIT .............. 75
s. PACKING ........................... 19 12. FOR KC, HEM, HB AND SD TYPES ...... 76
7. RC. BOARDS CONNECTION DIAGRAM ..... 21

B. SCHEMATIC DIAGRAM ................ 25

PIONEER ELECTRONIC CORPORATION 4-1. Meguro 1-Chome, Meguro-ku. Tokyo 158, Japan

GEE ELECTRONICS SERVICE INC. PO. Box 1760, Long Beach. CaMOmla 90801 USA,

PIOIEER ELECTRONICS OF CANADA, INC. 505 Cochrane Drive. Markham. Ontario L3H 588 Canada TEL' [416] 4794411
PIONEER ELECTRONIC [EUROPE] N.V. Keetberglaan 1. 2740 Beveren, Belqurn TEL: 03/775 - 28 - 08

PIONEER ELECTROMCS AUSTRALIA PTI. LTD. 178484 Boundary Road. BraeSIde, Viclona 3195. Austraha TEL' [03] 580-9911

M] © MAR. 1987 Printed inIapan

WWW, MM.

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05

1. SAFEY INFORMATION

-(FOR USA MODEL ONLY)
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 card 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.

Reading should
not be above
0.5mA

Leakage
current
tester

Device
under
test

Test all
exposed metal
vsurlaces

Qt 2vwire cord

Also test with
plug reversed _ Earth
(Using AC adapter I 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 af-
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) .

rVAROlTUS!----
LAITE SISALTAA LASERDlODIN, JOKA
LAHETTAA NAKYMATONTA, SlLMlLLE
VAARALLISTA INFRAPUNASATEILYA
LAITTEEN SISALLA ON LASERDIODIN
LAHEISVYDESSA KUVAN l. MUKAINEN
VAROITUSMERKKI.

LASER

Kuva 1
Lasersatoilvn
varoitusmerkki

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

r minim-
APARATEN INNEHALLER LASER AV HOGRE
KLASS AN 1. INGREPP I APPARATEN 30R
GORAs AV SPECIELLT UTBILDAD PERSONAL.

WARNING!
DEVICE wcwoes LASER DlODE WHICH
EMITS INVISIBLE INFRARED RADlA-
non wmcu IS DANGEROUS T0 eves.
THERE is A WARNlNG SIGN ACCORDING use a

TO PICTURE l msroe me DEVICE new,

CLOSE TO THE LASER moors, Waming sign .0,

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.