Sony HCD-VZ50MD, Service Manual

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HCD-VZ50MD
E Model
Tourist Model
SERVICE MANUAL
MINI Hi-Fi COMPONENT SYSTEM
— Continued on next page —
SPECIFICATIONS
HCD-VZ50MD is the tuner, deck, CD, MD and
amplifier section in DHC-VZ50MD.
This stereo system is equipped with the Dolby B-type
noise reduction system*.
* Manufactured under license from Dolby
Laboratories Licensing Corporation.
DOLBY and the double-D symbol
;
are
trademarks of Dolby Laboratories Licensing
Corporation.
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM53F-K4BD37
Base Unit Type BU-K4BD37
Optical Pick-up Type KSM-213DHAP/Z-NP
Model Name Using Similar Mechanism HCD-ZX50MD
MD Mechanism Type MDM-7B
Optical Pick-up Type KMS-260B/J1N
Model Name Using Similar Mechanism HCD-ZX50MD
Tape Transport Mechanism Type TCM-230AWR12
CD
SECTION
MD
SECTION
TAPE DECK
SECTION
Amplifier section
The following measured at 120/220/240 V AC, 50/60 Hz
DIN power output (rated) 115 + 115 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
150 + 150 watts
(6 ohms at 1 kHz,
10 % THD)
Inputs
VIDEO (AUDIO) IN:
voltage 250 mV,
(phono jacks) impedance 47 kilohms
MIC 1/2: sensitivity 1 mV,
(mini jack) impedance 10 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: 0.286 Vp-p,
load impedance 75 ohms
PHONES: accepts headphones of
(stereo mini jack) 8 ohms or more
FRONT SPEAKER: accepts impedance of 6 to 16 ohms
SUPER WOOFER: Voltage 1 V, impedance 1 kilohms
VIDEO CD/CD player section
System Compact disc and digital audio
system
Laser Semiconductor laser
(
λ
=780 nm)
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 2 Hz – 20 kHz (
±
0.5 dB)
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB
Video color system format
NTSC, PAL
MD deck section
System MiniDisc digital audio system
Laser Semiconductor laser (
λ
=780 nm)
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 a
7 mm aperture.
Sampling frequency 44.1 kHz
Frequency response 20 – 20,000 Hz
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