Technics ST-8055, Service Manual

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0 ORDER NO. 7908-1608
Manual
Q u a r t z S y n t h e s i z e r F M / A M S t e r e o T u n e r
ST-8055
(EG), (XA), (XE),
(XGF)
ST-8055K
(E), (EG), (XA), ( X G H )
ST-8055K
The models ST-8055 (E, EG) and (E, EG) are
available in Scandinavia and European only.
The models ST-8055 (XA) and ST-8055K (XA) are available in
Asia, Latin America, Middle East and Africa only.
* The model ST-8055 (XE) is available in United Kingdom only.
* The model ST-8055 (EB) is available in Belgium only.
The models ST-8055 ( X G H ) and ST-8055K (XGH) are
available in Holland only.
* The model ST-8055 (XGF) is available in France only.
TECHNICAL SPECIFICATIONS
[DIN 45 500]
are subject to change w i t h o u t notice for further improvement.
T U N E R SECTION
Frequency range*
Antenna terminals
Sensitivity
S/N 30 dB
S/N 26 dB
S/N 20 dB
46 dB stereo quieting sensitivity
87.50 ~ 108.00 MHz
(balanced), (unbalanced)
( I H F , usable)
1.2
Total harmonic distortion
S/N
M O N O
STEREO
M O N O
STEREO
69 dB ( I H F :
65 dB ( I H F :
20 Hz ~ kHz, +0.5 dB Frequency response
Alternate channel selectivity (+400 kHz)
Capture ratio
Image at 98 MHz
rejection at 98 MHz
Spurious response rejection at 98 MHz
AM suppression
Stereo separation
Carrier leak
Limiting point
Power bandwidth
1 kHz
19 kHz
38 kHz
IF amplifier
FM demodulator
Channel balance (250 Hz ~ 6300 Hz)
0.3%
75 dB)
70 dB)
1.5 dB
75 dB
1.0 dB
65 dB
100 dB
90 dB
55 dB
d B , 10kHz 35dB
- 3 7 dB)
dB)
180 kHz
dB
531 kHz
30 V / m
dB
4 5 d B
dB
A M T U N E R SECTION
Frequency range*
Sensitivity (S/N 20 dB)
Selectivity ( ± 9 kHz)
Image rejection at 1000 kHz
rejection at 1000 kHz
G E N E R A L
Output voltage 0.3V (0.6V, F
Power consumption 1 2W
Batteries for memory back-up (optional)
three " A A " size batteries DC 4.5V
Power supply (50 Hz/60Hz) 2 0 V / 2 2 0 V / 2 4 0 V
Dimensions 430 x 53 x 240 mm
x 2 - 3 / 3 2 " x 9-7/16")
Weight 2.8 kg (6.2 lb.)
For some countries, this unit is equipped w i t h an
selector. The specifications shown above are
correct w i t h this switch set to the " F M 50 k H z / A M 9 k H z "
position. If it is set to the " F M 200 k H z / A M 1 0 k H z " position,
however, the FM frequency range becomes 88.1 ~
MHz,
and the AM frequency range becomes 530 ~ kHz.
Technics
Matsushita Electric Trading Ltd.
Box 288. Central Japan