Sony MHC-DX90 Service Manual page 7

SERVICE MANUAL
Ver 1.0 2001.04
HCD-DX90 is the tuner, deck, CD and
amplifier section in MHC-DX90.
Amplifier section
The following measured at AC 120, 220, 240V
50/60 Hz
DIN power output (rated) 220 + 220 watts
(4 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
300 + 300 watts
(4 ohms at 1 kHz,
10% THD)
Inputs
MD/VIDEO (AUDIO) IN: voltage 450 mV/250 mV,
(phono jacks) impedance 47 kilohms
MIC: sensitivity 1 mV,
(phone jack) impedance 10 kilohms
Outputs
PHONES: accepts headphones of 8
(stereo mini jack) ohms or more
FRONT SPEAKER: accepts impedance of 4 to
16 ohms
CD player section
System Compact disc and digital
audio system
Laser Semiconductor laser
(λ=780nm)
Emission duration:
continuous
Max. 44.6 µ W*
Laser output
*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.
Sony Corporation
9-873-882-11
2001D0500-1 Home Audio Company
C 2001.4 Shinagawa Tec Service Manual Production Group
HCD-DX90
Model Name Using Similar Mechanism
CD
CD Mechanism Type
SECTION
Base Unit Type
Optical Pick-up Type
Model Name Using Similar Mechanism
TAPE DECK
SECTION
Tape Transport Mechanism Type
SPECIFICATIONS
Frequency response 2 Hz – 20 kHz (±0.5 dB)
Wavelength 780 – 790 nm
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB
CD OPTICAL DIGITAL OUT
(Square optical connector jack, rear panel)
Wavelength 660 nm
Output Level –18 dBm
Tape player section
Recording system 4-track 2-channel stereo
Frequency response 40 – 13,000 Hz (±3 dB),
(DOLBY NR OFF) using Sony TYPE I
cassette
40 – 14,000 Hz (±3 dB),
using Sony TYPE II
cassette
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range 87.5 – 108.0 MHz
Antenna FM lead antenna
Antenna terminals 75 ohm unbalanced
Intermediate frequency 10.7 MHz
COMPACT DISC DECK RECEIVER
E Model
HCD-BX9/DX9
CDM58-K2BD38
BU-K2BD38
KSM-213DAP
NEW
TCM-230AWP11
AM tuner section
Tuning range 531 – 1,602 kHz
(with the interval set at 9
kHz)
530 – 1,710 kHz
(with the interval set at 10
kHz)
Antenna AM loop antenna
Antenna terminals External antenna terminal
Intermediate frequency 450 kHz
General
Power requirements 120 V, 220 V or 230 - 240
V AC, 50/60 Hz
Adjustable with voltage
selector
Power consumption 300 watts
Dimensions (w/h/d) Approx. 280 x 360 x 425
mm (11 x 14
in.)
Mass : Approx. 11 kg
(24 lb. 5 oz)
Supplied accessories: AM loop antenna (1)
Remote commander (1)
Batteries (2)
FM lead antenna (1)
Front speaker pads (8)
Design and specifications are subject to change
without notice.
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