Technics QUARTZ SA-R177 User Manual

e FM ADJUSTMENT
Control positions and equipment used
e FM signal generator (FM-SG).
© Distortion analyser
«Oscilloscope
¢ DC electronic voltmeter (EVM)
FM MONO DISTORTION ADJUSTMENT
1. Test equipment connection is shown in figure.
2. Set the unit to “FM” position.
3. Set the radio frequency display and signal generator
to 100.10MHz.
. Adjust T201 core so that voltage measured in signal
mode is OmV (0+20mV) in 300mV range.
. Adjust T202 so that the distortion factor of Lch is
minimized.
. Repeat steps 4 and 5 a few times.
. Make sure that the distortion factors of Lch and Rch
are nearly the same with each other to minimum.
Note:
The adjusting screwdriver used should be made of
resin.
FM MPX VCO ADJUSTMENT
1. Test equipment connection is shown in figure.
2. Set the unit to “FM auto” position.
3. Place the radio frequency display and signal
generator setting to 100.10 MHz.
. Adjust VR301 for 19.00+0.03kHz on frequency
counter reading.
%* USING ALTERNATE SYSTEM
1. Apply stereo signal from generator or receive the
stereo broadcast.
2. Adjust VR301 until stereo indicator lights up.
Cement arm of VR301 as shown in figure.
¢ Frequency counter
¢Choke coil (100}H)
e Resistor (100kQ)
SA-R177
FM SIGNAL GENERATOR CONDITION
Modulation
Modulation frequency.
Output level
onooee
(non-modulation)
66dB
FREQUENCY
FM ANTENNA COUNTEA
TERMINAL
: Stereo ON position
® - ©) - ©: Stereo OFF position
©-@©
{indicator lighting)
©: Adjust point of pilot circuit
Teo e re TEP Lee ARON ee RET ee

Technics QUARTZ SA-R177 Specifications

General

Brand	Technics
Model	QUARTZ SA-R177
Category	Stereo Receiver
Language	English