Technics QUARTZ ST-S4 Service Manual

ORDER NO. $D81041873C8
ST-S4
ST-S4 (K
Areas
* [E] is available in Switzerland and Scandinavia.
* [EG] is available in F.R. Germany.
* [EH] is available in Holland .
* [EA] is available in Austria.
* [XA] is available in East South Asia, Oceania, Africa,
Middle Near East and Central South America.
* [XL] is available in Australia.
types.
* The black type model is provided with (K) in the Service Manual.
English
(DIN 45 500)
@ FM TUNER SECTION
Channel balance (250 Hz~6,300 Hz)
+1.0dB
i
Frequency range
87.50~ 108.02 MHz
ermiting pom
yy
Sensitivit 2.0 uV (IHF, usabl poncwidm
sibel
Lt
Ou (IAF, usable),
IF amplifier (normal)
180 kHz
S/N 30 dB 2.0 uV (3002), 1.0 wV (752)
FM demodulator (normal) 1000 kHz
S/N 26 dB 1.8 wV (300), 0.9 uwV (752)
Antenna terminals 300 (balanced)
S/N 20 dB
1.6 uV (3000), 0.8 wV (752)
75Q (unbalanced)
IHF 46 dB stereo quieting sensitivity 24.5 uV/75Q
Total harmonic distortion
MONO (normal)
0.08%
M@ AM TUNER
SECTION
STEREO (normal)
0.1% Frequency range
522~1611 kHz (9 |Hz-step)
S/N
530~ 1620 kHz (10 kHz-step)
MONO
70 dB (78 dB, IHF)
Sensitivity (S/N 20 dB)
30 LV, 250 uwV/m
STEREO
65 dB (73 dB, IHF)
Selectivity (£9 kHz)
55 dB
Frequency response
20 Hz~ 15 kHz, +0.5 dB~ —-1.5 dB
Image rejection at 999 kHz
45 dB
Alternate channel selectivity —
IF rejection at 999 kHz
40 dB
normal +400 kHz 60 dB
super narrow +200 kHz 22 dB M@ GENERAL
Capture ratio
1.0dB
|
Image rejection at 98 MHz
70 dB Output voltage
0.3V (G6V, IHF)
IF rejection at 98 MHz
90 dB Power consumption
_ _ 8W
Spurious response rejection at 98 MHz 90 dB Power supply AC 50 Hz/60 Hz, 110V/120V/210V /240V
AM suppression
55 dB Dimensions (WxHxD)
430 x 53
»300 mm
Stereo separation
(16-15/16" x 2-3/32" x 1\-13/16")
1 kHz
50dB —«-Welght
pet
10 kHz
40 dB
<7'(b.)
Carrier leak Note:
19 kHz
-30 dB (—35 dB, IHF)
Total harmonic distortion is measured by the digital pectrum
38 kHz
—45 dB (—50 dB, IHF)
analyzer (H.P. 3045 system).
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