Technics ST-G560L

FM MONO DISTORTION ADJUSTMENT
1.Test equipment connection is shown in figure.
2.Set the unit to “FM” mode.
3.Set the radio frequency display and signal! generator to
100.10MHz.
4.Adjust the core of T101 so that the voltage measured in
signal mode is OmV(0+20mY) in 300mvV range.
§.Adjust T102 so that the distortion factor of L-CH is
minimized.
6.Repeat steps 4 and 5.
7.Make sure that the distortion factors of L-CH and R-CH
are nearly the same and minimum.
Note: The adjusting screwdriver used should be made of
resin.
SEPARATION ADJUSTMENT
1.Test equipment connection is shown in figure.
2.Set the unit to “FM and IF normal” mode.
3.Set the radio frequency display and signal generator to
100.10MHz.
4.Adjust VR301 so that the R-CH output is minimized when
stereo modulator is in “L”(L-CH modulation) mode.
FM SIGNAL STRENGTH LEVEL ADJUSTMENT
1. Test equipment connection is shown in figure.
2. Set the unit to “FM and IF normal” mode.
3. Set the radio frequency display and signal generator to
100.10 MHz.
4. Change FL display from “frequency” to “dB” by pressing
the FM signal button.
5. Adjust VR101 so that 54dB is indicated. ‘54dB” is
indicated on the FL display.
6. Repeat steps 4, 5.
FM SIGNAL GENERATOR CONDITION
Modulation
Modulation frequency
Output level
FM SIGNAL GENERATOR CONDITION
Modulation Stereo “L’’ mode or ‘“‘R”.
mode 45%, Pilot 10%
Modulation frequency
Output level
Modulation
Modulation frequency.
Output level
Guense
000
ST-G560L
e Adjustment points.
FM STEREO FM DET FM DET
SEPARATION Coil Coil
ADJ. (100.IMHz) (100.IMHz)
FM FRONT
Z20!| END PACK
FM STRENGTH
LEVEL ADJ.