SERVICE MANUAL
DVD DECK RECEIVER
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Chinese Model
SPECIFICATIONS
HCD-M90
9-873-991-05
Sony Corporation
2004I05-1
Personal Audio Company
© 2004.09
Published by Sony Engineering Corporation
HCD-M90 is the Amplifier, DVD player, Tape
Deck and Tuner section in CMT-M90DVD.
Model Name Using Similar Mechanism
NEW
DVD
DVD Mechanism Type
CDM55D-DVBU8B
Section
Base Unit Name
DVBU8B
Optical Pick-up Name
KHM-240AAA (TYPE A)
KHM-270AAA (TYPE B)
TAPE
Model Name Using Similar Mechanism
HCD-M70
Section
Amplifier section
For the U.S. model
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
With 6-ohm loads, both channels driven, from
70 - 20,000 Hz; rated 18 watts per channel
minimum RMS power, with no more than 0.9%
total harmonic distortion from 250 milliwatts to
rated output.
North American model:
Continuous RMS power output (reference):
20 + 20 W
(6 ohms at 1 kHz, 10%
THD)
Total harmonic distortion less than 0.07% (6 ohms at
1 kHz, 12 W)
European, Chinese models:
DIN power output (rated): 15 + 15 W
Continuous RMS power output (reference):
20 + 20 W
(6 ohms at 1 kHz, 10%
THD)
Music power output (reference):
40 + 40 W
Other models:
The following measured at 230 V AC, 60 Hz
DIN power output (rated): 15 + 15 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
18 + 18 W
(6 ohms at 1 kHz, 10%
THD)
The following measured at 220 V AC, 60 Hz
DIN power output (rated): 12 + 12 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
15 + 15 W
(6 ohms at 1 kHz, 10%
THD)
Inputs
AUDIO IN MD (VIDEO) (phono jacks):
Sensitivity 500/250 mV,
impedance 47 kilohms
Outputs
VIDEO OUT:
max. output level
(phono jack)
1 Vp-p, unbalanced, Sync
negative, load impedance
75 ohms
S-VIDEO OUT:
Y: 1 Vp-p, unbalanced,
(4-pin/mini-DIN jack)
Sync negative,
C: 0.286Vp-p,
load impedance 75 ohms
OPTICAL OUT:
Optical
Wavelength: 660 nm
PHONES:
Accepts headphones with
an impedance of 8 ohms
or more
SPEAKER:
accepts impedance of 6 to
16 ohms.
DVD player section
Laser
Semiconductor laser
(DVD:
λ
=650 nm,
CD:
λ
=780 nm)
Emission duration:
continuous
Frequency response
DVD (PCM 48 kHz):
2 Hz – 22 kHz = (
±
1 dB)
CD: 2 Hz – 20 kHz =
(
±
1 dB)
Signal-to-noise ratio
More than 90 dB
Dynamic range
More than 90 dB
Video color system format
NTSC, PAL
Tape deck section
Recording system
4-track 2-channel stereo
Frequency response
50 – 13,000 Hz (
±
3 dB),
using Sony TYPE I
cassettes
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