Pioneer ctw 103 service manual

Page 1

0.!) PIONEER

MMofEannm

Service

Manual

STEREO DOUBLE CASSETTE DECK

CT-W1 03

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

ORDER NO
RRV1 068

Model
Type Power Requirement Remarks
CT-W103

KUXJ O ACIZOV

KCXJ O ACIZOV
CONTENTS
1_ SAFETY INFORMATION .................................... 2
2. EXPLODED VIEWS. PACKING AND PARTS LIST -3
3, BLOCK DIAGRAM ........................................... 1o
4. PCB CONNECTION DIAGRAM- ~--11
5. SCHEMATIC DIAGRAM -------- ~15
6. pea PARTS LIST ................... ".13
7_ ADJUSTMENTS .................. 20
8. PANEL FACIUTIES--~ ~--23
9. SPECIFICATIONS ........................................... 24

PIONEER ELECTRONIC CORPORATION

PIONEER ELEM SERVICE INC. R0. Box 1760. Long Beach. CaIiIomia 90801 U.S.A.
PIONEER mules OF CANADA. NC. 300 Allsme Parkway Markham. Ontario L3R 0P2 Canada
PIOOEERELECIRONICIEUROPEJIMI. Hmn1087 W19120Melsele. Belgium

PTY. LTD. 178.184 BounduyRoad. Braeside. Victoria 3195. Australia TEL: [03] 560- 9911

ELECTMNIS W
O PIONEER ELECTRONIC CORPORATION 1994

4'1. Meguro 1-Chome Meguro-ku. Tokyo 153. Japan

T- SSF MAR 1994 Printed in Japan

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CT-W1 03

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 repalr 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 eolder ueed in thle product is Iieted by the Califomla Health and Welfare agency an a known reproductive toxlcant which
may cauee birth dafacta or other reproductive herrn (California Health I Safety Code. Section 25149.5).
When eanriclng or handling clrcult boarda and other componente which conteln lead in colder. avold unprotected akin contact with
the solder. Aiao. when eolderlng do not Inhale any emolte or furnae produced.

NOTICE
(FOR CANADIAN MODEL ONLY)

Fuse symbols E (fast operating fuse) and/or E- (slow operating fuse) on PCB Indicate that replacement pans

must be of identical designation.

REMAROUE
(POUR MODELE CANADIEN SEULEMENT)

Les symboles de fusible E- (fusible de type rapids) etlou E (fusible de type lent) sur CCl indiquent que les

places do remplacement doivent avolr Ia meme designation.

"(FOR USA MODEL ONLY)
1.8AFETY 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.l. Plug
the AC line cord of the appliance directly into a 120V
AC 60H: outlet and turn the AC power switch on. Any
current measured must not exceed 0.5mA.

4- Reading should

LBBEBQD not be above
current 05"

tester

Device
under
test

Test all
exposed metal
surfaces

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

AC Leakage Test

ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A PO-
TENTlAL 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 vol-
tage, wattage. etc. Replacement parts which have
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
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 pans 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 Service Manual. A subscription to. or ad-
ditional copies of, PIONEER Service Manual may be
obtained at a nominal charge from PIONEER.