Technics QUARTZ ST-K50 Service Manual

ORDER NO. AD9006162C7
Service Manual
CYUARTZ Synthesizer
AM/FM Stereo Tuner
SPECIFICATIONS
(DIN 45 500)
W@FM TUNER SECTION
Frequency range 87.50 ~ 108.00 MHz (0.05 MHz steps)
Sensitivity 1.5 pV (IHF, usable)
SIN 30 dB 1.3 pV (75 Q)
SIN 26 dB 1.2 pV (75 Q)
SIN 20 dB 0.9 pV (75 Q)
IHF 46 dB stereo quieting sensitivity 28 wV/75 QO
Total harmonic distortion
MONO 0.15%
STEREO 0.3 %
SIN '
MONO 70 dB (78 dB, IHF)
STEREO 65 dB (70 dB, IHF)
Frequency response 20 Hz~15 kHz, +0.5 dB~—1.5 dB
Alternate channel selectivity
+400 kHz 55 dB
Capture ratio 1.0 dB
Image rejection at 98 MHz 45 dB
IF rejection at 98 MHz 90 dB
Spurious response rejection at 98 MHz 75 dB
AN suppression 50 dB
Stereo separation
1kHz 40 dB
10 kHz 30 dB
Carrier leak
19 kHz — 30 dB (—35 dB, IHF)
38 kHz —45 dB (—50 dB, IHF)
Channel balance (250 Hz~ 6,300 Hz) +1.5 dB
Limiting point 1.2 pV
Bandwidth
IF amplifier 180 kHz
FM demodulator 1000 kHz
Antenna terminais 75 Q (unbalanced)
'Technics
Matsushita Electric Industrial Co., Ltd.
Central P.O. Box 288, Osaka 530-91, Japan
Tuner
Color
(K)osclesanciids Black Type
Area
Asia, Latin America,
Middle Near East and
Africa
(K)
Oceania
Far East-PX
WAM TUNER SECTION
Frequency range 531 kHz~1602 kHz (9-kHz steps)
530 kHz~1600 kHz (10-kHz steps)
Sensitivity (S/N 20 dB) 20 pV, 300 pV/m
Selectivity (+9 kHz) (at 999 kHz) 50 dB
Image rejection (at 999 kHz)
40 dB
IF rejection (at 999 kHz) 60 dB
Wi GENERAL
Output voltage 0.3 V (0.6 V IHF)
Power consumption 9W
Power supply
For Oceania: AC 50 Hz/60 Hz, 240V
For others: AC 50 Hz/60 Hz, 110 V/127 V/220 V/240 V
Dimensions (W x H x D) 430 x 64« 290 mm
(16-15/16" x 2-17/32" x 11-13/32")
Weight 2.3kg (5.1 Ib.)
Notes:
1. Specifications are subject to change without notice.
2. Weight and dimensions are approximate.
3. Total harmonic distortion is measured by the digital spectrum
analyzer.
Panasonic Tokyo Sales Department
Matsushita Electric Industriaj Co., Ltd.
World Trade Center Bidg., 4-1, 4amamatsu-cho,
2-chome, Minato-ku, Tokyo 105, Japan