Pioneer CT-S420 Service Manual

d) PIONEER’
The Art of Entertainment
Service
STEREO CASSETTE DECK
CTr-s
CT-S420
CT-S520 AND CT-S420 HAVE THE FOLLOWING:
Type
|
Model
Power
Requirement
Remarks
CT-S520
CT-S420
*Change the connection of the power transformer’s primary wiring.
® This manual is applicable to the following: CT-S520/HEM and HB; CT-S420/HEM
and HB.
® The models and their types in this manual indicate the following:
CT-S520; CT-S520/HEM and HB types.
CT-S420; CT-S420/HEM and HB types.
HEM type; CT-S520/HEM and CT-S420/HEM.
HB type; CT-S520/HB and CT-S420/HB.
CONTENTS
1. SAFETY INFORMATION -++-:-ssseseseccceesecsceeeereeneee 2 7. PCB PARTS LIST ns<sccesteciecicsncessncccess westereorenvas 22
2. PACKING AND PARTS LIST cev:eeccesseesssseceseceoseeees 3 8B. ADJUSTMENTS -:--:cccccscsscstescsssssceccnssaseeeeconeenss 25
3. EXPLODED VIEWS AND PARTS LIST ------seeeeeeees 4 9, IC INFORMATION --ceeesesscccesssceceeseeeeececeeeeeeeeeees 29
4. BLOCK DIAGRAM --+ss--eeeseccccescesccesceesessterseseeees 10 10. FL INFORMATION -+------sesssescecseessseceeeceeeeseenenas 31
5. PCB CONNECTION DIAGRAM.---+-cceecesessceeteeveees 1 11. PANEL FACILITIES ----+---0sseescesssssseeceeeecuseeeeeee ens 32
6. SCHEMATIC DIAGRAM. +<ececceeeseeeeeeesscerreeetereeees 19 12. SPECIFICATIONS cocceccecceesestsceccccececeneeceeeseeeeess 33
PIONEER ELECTRONIC CORPORATION = 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE INC. P.O. Box 1760, Long Beach, California 90801 U.S.A.
PIONEER ELECTRONICS OF CANADA, INC. 300 Alistate Parkway Markham, Ontario LR OP2 Canada
PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Meisele, Belgium
PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 178-184 Boundary Road, Braeside, Victoria 3195, Australia TEL: [03] 580-9911
© PIONEER ELECTRONIC CORPORATION 1993 SF MAR. 1993 Printed in Japan

Pioneer CT-S420 Specifications

General

Brand	Pioneer
Model	CT-S420
Category	Cassette Player
Language	English

Summary

SAFETY INFORMATION

SAFETY PRECAUTIONS

Important safety checks and warnings for technicians, including leakage current testing.

PRODUCT SAFETY NOTICE

Information on safety-related parts and potential hazards from using substitute components.

BLOCK DIAGRAM

PCB CONNECTION DIAGRAM

SCHEMATIC DIAGRAM

MECHANISM UNIT SCHEMATIC

Circuit diagram for the mechanism section of the unit.

MAIN UNIT SCHEMATIC

Circuit diagram for the main processing unit.

OPSW UNIT SCHEMATIC

Circuit diagram for the operation control unit.

DISP UNIT SCHEMATIC

Circuit diagram for the display unit.

MECS UNIT SCHEMATIC

PCB PARTS LIST

SEMICONDUCTOR COMPONENTS

CAPACITOR COMPONENTS

ADJUSTMENTS

MECHANICAL ADJUSTMENTS

Procedures for adjusting mechanical aspects like tape speed.

ELECTRICAL ADJUSTMENTS

Procedures for calibrating electrical performance.

RECORDING LEVEL ADJUSTMENT

Procedure for setting the recording signal level.

AUTO BLE ADJUSTMENT

Automatic adjustment for Bias Level Extension.

IC INFORMATION