MICROFILM
SERVICE MANUAL
Dolby noise reduction manufactured under license from
Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol
a
are trademarks of
Dolby Laboratories Licensing Corporation.
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HCD-W55 is the deck, CD section
in MHC-W55/W77AV.
AEP Model
UK Model
Model Name Using Similar Mechanism
NEW
CD Mechanism Type
CDM38-5BD19
Base Unit Name
BU-5BD19
Model Name Using Similar Mechanism
HCD-H901AV
Tape Transport Mechanism Type
TCM-220WR2
Tape deck
Section
CD
Section
SPECIFICATIONS
Tape player section
Recording system
4-track 2-channel stereo
Frequency response
(DOLBY NR OFF)
40–13,000 Hz (
±
3 dB),
using Sony TYPE I cassette
40–14,000 Hz (
±
3 dB),
using Sony TYPE II cassette
40–15,000 Hz (
±
3 dB),
using Sony TYPE IV cassette
Wow and flutter
0.1% WRMS
±
0.3% (DIN)
Design and specifications are subject to change without notice.
HCD-W55
CD player section
System
Compact disc digital
audio system
Laser
Semiconductor laser
(
λ
=780nm)
Emission
duration : continuous
Laser output
Max 44.6
µ
W*
*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.
Wavelength
780–790 nm
Frequency response
2Hz–20kHz (
±
0.5 dB)
Signal-to-noise ratio
More than 80 dB
Dynamic range
More than 90 dB
CD OPTICAL DIGITAL OUT
(Square optical connector jack, rear panel)
Wavelength
600 nm
Output Level
–18 dBm
MINI Hi-Fi COMPONENT SYSTEM
