Pioneer CT-S520 - 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

Summary

SAFETY INFORMATION

SAFETY PRECAUTIONS

General safety precautions for technicians and users.

LEAKAGE CURRENT CHECK

Procedure to measure leakage current for safety.

PRODUCT SAFETY NOTICE

Important safety related characteristics of replacement parts.

PACKING AND PARTS LIST

Parts List

List of parts and their corresponding part numbers for packing.

EXTERIOR VIEWS

Exterior Components

Exploded view and parts list for external components.

Mechanism Unit Views

Exploded view of the mechanism unit.

BLOCK DIAGRAM

INTERNAL PARTS LIST

PCB CONNECTION DIAGRAM

SCHEMATIC DIAGRAM

PCB PARTS LIST

SWITCHES AND CIRCUIT NOTES

ADJUSTMENTS

Mechanical Adjustment

Procedure for tape speed adjustment.

Head Azimuth Adjustment

Adjusting the head azimuth for optimal playback.

Playback Level Adjustment

Setting playback level for Dolby NR and HX Pro.

Bias Oscillator Adjustment

Adjusting the bias oscillator frequency.

Bias Trap Adjustment

Adjusting the bias trap for minimum output.

Recording Bias Adjustment

Adjusting recording bias for distortion rate.

Recording Level Adjustment

Setting recording level for different tape types.

AUTO BLE Adjustment

Performing automatic bias and level adjustment.

IC INFORMATION

PD4443 A (IC701) CPU Pin Functions

Pin functions for the PD4443A CPU.

NM93 C46 N (IC703) Memory Pin Assignment

Pin assignment and functions for NM93C46N memory.

LC7570 (IC702) BLE Data Conversion Pin Functions

Pin functions for LC7570 BLE data conversion IC.

FL INFORMATION

PANEL FACILITIES

SPECIFICATIONS

Pioneer CT-S520 Specifications

General

Track System	4-track, 2-channel stereo
Number of Heads	3
Heads	1 x record, 1 x playback, 1 x erase
Tape Type	type I, CrO2, Metal
Total Harmonic Distortion	0.8%
Output	0.5V (line)
Type	single compact cassette deck
Motor	1 x reel, 1 x capstan
Inputs	Line In
Outputs	Line Out