Pioneer ct 50 r service manual

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GD PIONEER

Sefiice
(71431111511
ORDER NO.

REP/Ilka ADJUSTMENTS ' ' .L L . ARP-371-0

STEREO CASSETTE TAPE DECK

T-EDH

MODEL CT-50R COMES IN SEVEN VERSIONS DISTINGUISHED AS FOLLOWS:

Type Volt-co Remarks
KU AC12OV eniy U.S.A. model

KC Ac120V oniy Canada model

HEM AC22OV, 240v (switchable) European continent model

HB ACZZOV 240V (switchable) United Kingdum model

HP ACZZOV, 240V (swiichable) Australia model

D AC1 20V, 220V 240V (switchable) Genera! export model

D/G ACIZOV, 220V, 240V (switchable) UVS. Mililary model

This service manual is applicable to the KU type. For servicing of the D and 0/6 types, please refer to
pp. 50431.

For the circuit and mechanism descriptions, please refer to the CT-50R service manual (ARP~439-O).
Ce manuel d'instruction se refére au mode d9 reglage, en francais.

Este manual de servicio tram del método de ajuste escrito en espafiol.

CONTENTS

I. SPECIFICATIONS .................... 3 & SCHEMATIC DIAGRAM ................ 21
2. FRONT PANEL FACILITIES ............. 4 9. ELECTRICAL PARTS LIST .............. 25
3C DISASSEMBLY ...................... e 10. ADJUSTMENTS ..................... 29
4. PARTS LOCATION ................... 7 REGLAGE ......................... 36
5. EXPLODED VIEW .................... 9 AJUSTE ........................... 43
6. PACKING .......................... 15 11. SUPPLEMENT FOR D AND D/G TYPES ..... 50
7_ P.C. BOARDS CONNECTION DIAGRAM . I . , 17

PIONEER ELECTRONIC CORPORATION 41. Mngro 1~Chome, Meguro-ku, Tokyo 153. Japan
PIONEER ELEC'rnomca [usA1 INC. 1925 EC Dominguez 512,. Long Beach. Cahfornva 50810 USA,

PIONEEH ELECTflONIc [EUROPE] N.v. Keeebengiaan 1. 2740 Beveren. BeIqum

PIONEER ELEcrnonnca AUSTRALIA "v. LTD. 178484 Boundary Road. Braesnde. vIccoma 3195, Auscraua

YH © JULY. 1983 Printed in lapan

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SAFETY INFORMATION

1.8AFETY PRECAUTIONS
The following check should be performed for the

continued protection of the customer and service tech»

nician.
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 appli-
ance (input/output terminals, screwheads, metal overlays,
control shaft, etc.). 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.

Reading should
not be above

Device OiSmA
under
test
Test all
exposed metal
surfaces
2-wire cord

@ Also test with

plug reversed Earth

(Using AC adapter 7 ground
plug as required)

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 appliance
have special safety related characteristics. These are often
not evident from visual inspection nor the protection
afforded by them necessarily can be obtained by using
replacement components rated for voltage, wattage, etc.
Replacement 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
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 time. For the latest
information, always consult the current PIONEER Service
Manual. A subscription to, or additional copies of, PIONEER
Service Manual may be obtained at a nominal charge from
PIONEER.