Sony HCD-W550 User Manual

HCD-W550
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Tourist Model
SERVICE MANUAL
STEREO CASSETTE DECK CD PLAYER
MICROFILM
CD
Model Name Using Similar Mechanism HCD-GR8/RX90
Section
CD Mechanism Type CDM38-5BD29A
Base Unit Name BU-5BD29A
Tape deck Model Name Using Similar Mechanism HCD-GR5/RX50
Section Tape Transport Mechanism Type TCM-220WR2E
Manufactured under license from Dolby Laboratories
Licensing Corporation.
“DOLBY” and the double-D symbol a are trademarks
of Dolby Laboratories Licensing Corporation.
SPECIFICATIONS
• HCD-W550 is the deck, CD section
in MHC-W550/W770AV.
CD player section
system Compact disc and digital
audio system
Laser Semiconductor laser
(l = 780 mm)
Emission duration :
continuous
Laser output Max. 44.6 mW*
*This output is the value
measured at a distance of
200 mm from the
objective lens surface on
the Optical Pick-up Block
with 7 mm aperture.
Frequency response 2Hz - 20 kHz (± 0.5dB)
Wavelenght 780 - 790 mm
Signal to noise ratio More than 90 dB
Dynamic renge More than 90 dB
CD OPTICAL DIGITAL OUT
(Square optical connector jack, rear panel)
Wavelength 600 mm
Output Level - 18 dBm
Tape player section
Recording system 4 track 2 channel stereo
Frequency response 60 - 13,000 Hz (± 3dB),
(DOLBY NR OFF) using Sony TYPE I
cassette
60 - 14,000 Hz (± 3 dB),
using Sony TYPE II
cassette
General
Dimensions (w / h / d)Approx. 280 ¥ 205 ¥ 359
mm
Mass Approx. 4.3 kg
Design and specifications are subject to change without
notice.

Sony HCD-W550 Specifications

General

Number of Discs	3
Playable Media	CD, CD-R, CD-RW
Tuner Bands	FM/AM
Remote Control	Yes
Radio	Yes
USB Port	No
MP3 Playback	No
Speakers	2
Type	Mini Hi-Fi System

Summary

General Information

Disassembly Procedures

Back Panel and CD Block Removal

Procedure for removing the back panel and CD block from the unit.

Cassette Lid and Mechanism Deck Removal

Steps to remove the cassette lid and the mechanism deck.

Main Board, Resistor Board, and Front Panel Assembly Removal

Instructions for removing main board, resistor board, and front panel assemblies.

Adjustment Procedures

Mechanical Adjustment

Details on mechanical adjustments including torque and tension measurements.

Electrical Adjustment

Steps for electrical adjustments, including switch positions and test modes.

Diagrams

Block Diagram

Overview of the unit's functional blocks and signal paths.

Circuit Board Locations

Diagram showing the physical placement of various circuit boards within the unit.

IC Block Diagrams

Block diagrams illustrating the internal functions of key integrated circuits.

IC Pin Function

Detailed pin assignments and descriptions for specific integrated circuits.

Exploded Views

Main Section

Exploded diagram of the main section of the unit with part references.

Front Panel Section

Exploded diagram of the front panel components and assembly.

CD Mechanism Deck Section-1

Exploded view of the CD mechanism deck, part 1, for CDM38-5BD29A.

CD Mechanism Deck Section-2

Exploded view of the CD mechanism deck, part 2, for CDM38-5BD29A.

Base Unit Section

Exploded diagram of the base unit section for BU-5BD29A.

Tape Mechanism Deck Section-1

Exploded view of the tape mechanism deck, part 1, for TCM-220WR2E.

Tape Mechanism Deck Section-2

Exploded view of the tape mechanism deck, part 2, for TCM-220WR2E.

Electrical Parts List