Pioneer CT-W820R Service Manual

@) PIONEER’
The Art of Entertainment
Service
GAL
ENIED
comm
STEREO DOUBLE CASSETTE DECK
CT -WsoeR
CT-WsS20R
CT -W'720R
e Refer to the service manual ARP2547 for CT-W801R AND
CT-W701R.
CT-W802R, CT- aa ae AND CT-W720R HAVE THE FOLLOWING:
Power Requirement
CT-W802R | CT-W820R ti W720R
® This manual is applicable to the following: CT-W802R/KU, KC and_ SD;
CT-W820R/HB and HEM; CT-W720R/HEM.
AC220 — 230V, 230 — 240V (switchable) *
AC110V, 120 — 127V, 220V, 240V (switchable)
* Change the connection of the power transformer’s primary wiring.
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 Allstate Parkway Markham, Ontario L3R OP2 Canada BENE ay atte ge
PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium cs Fb )
PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 178-184 Boundary Road, Braeside, Victoria 3195, Australia TEL: [03] 580-9911 b
© PIONEER ELECTRONIC CORPORATION 1993 SK FEB, 1993 Printeed in Japan

Pioneer CT-W820R Specifications

General

Track System	4-track, 2-channel stereo
Auto Reverse	Yes
High-Speed Dubbing	Yes
Type	Double Cassette Deck
Motor	DC Motor
Tape Type	Type I
Noise Reduction	Dolby B
Frequency Response	20 Hz - 20 kHz
Input	100mV (line)
Output	0.5V (line)

Summary

CONTRAST OF MISCELLANEOUS PARTS

FOR CT-W802R/KU, KC, SD, CT-W820R/HEM AND HB

SCHEMATIC DIAGRAMS OVERVIEW

Cassette Deck Schematic Diagrams

Detailed circuit diagrams for various units of the cassette deck.

SAFETY INFORMATION

SAFETY PRECAUTIONS

Guidelines for safe operation and handling of the unit.

PRODUCT SAFETY NOTICE

Information on special safety characteristics of electrical and mechanical parts.

EXPLODED VIEWS AND PARTS LIST

DETAILED SCHEMATIC DIAGRAMS

PCB CONNECTIONS DIAGRAM

BLOCK DIAGRAM

PCB PARTS LIST

ADJUSTMENTS

MECHANICAL ADJUSTMENT

Procedures for mechanical adjustments like door damping and tape speed.

ELECTRICAL ADJUSTMENTS

IC DESCRIPTIONS

PD4381A (IC501) Details

CIRCUIT DESCRIPTIONS

SPECIFICATIONS