Technics ST-C03 Service Manual

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ORDER NO. SD8002-1674
FM/AM Stereo Tuner
ST-CO3
(E),(EG),(EB),(XGH),
(XGF),(XE),(XA),(XAL)
ST-CO3K
(EG)
* The colors of this model include silver and black.
The black type model is provided with (K) in the
Service Manual.
* (E] and [EG] are available in European and
Scandinavia.
* [EB] is available in Belgium.
* [XGH] is available in Holland.
* [XGF] is available in France.
* [XE] is available in United Kingdom.
* [XA] is available in Asia, Latin America, Middle East
and Africa.
* [XAL] is available in Australia.
ST-CO3K
[DIN 45 500]
FM TUNER SECTION
Frequency range 87.5 ~ 108.0 MHz Power bandwidth IF amplifier 180 kHz
Sensitivity 1.9uV (IHF, usable) FM demodulator 1000 kHz
S/N 30 dB 2.0nV (3002), 1.3uV (752) Antenna terminals 3002 (balanced)
S/N 26 dB 1.8uV (3002), 1.2uV (752) 752 (unbalanced)
S/N 20 dB 1.6nV (3002), 0.9xV (752)
tHF 46 dB stereo quieting sensitivity 20nV/752 AM TUNER SECTION
apap : a
Total harmonic distortion rene Bee Frequency range 522 ~ 1611 kHz
S/N MONO 68 dB (77 dB, IHF) Sensitivity (S/N 20 dB) 30uV, 250nV/m
STEREO 65 dB (72 dB. IHF) Selectivity +9 kHz 25 A
Alternate channel selectivity 75 dB IF rejection at 1,000 Kriz iecled
Capture ratio 1.0dB
Image rejection at 98 MHz 65 dB GENERAL
IF rejection at 98 MHz 85 dB Output voltage 0.3V
Spurious response rejection at 98 MHz 90 dB 0.6V (IHF)
AM suppression 52 dB Power consumption 12W
Stereo separation 1kHz 45 dB Power supply AC 50 Hz/60 Hz, 110V/120V/220V/240V
10 kHz 35 dB Batteries for memory back-up (optional)
Carrier leak 19 kHz —30 dB (—40 dB, IHF) three "AA" size batteries
38 kHz —50 dB (—40 dB, IHF) DC 4.5V
Channel! balance (250 Hz ~ 6,300 Hz) +1.0dB Dimensions (WxHxD) 297 x 49 x 244mm
Limiting point 1.2pV Weight 2.8 kg
Frequency response 20 Hz ~ 15kHz,+0.5dB ~ —1.5dB Image rejection at 1,000 kHz
P.O. Box 288, Central Osaka Japan