Distortion Adjustment - Toshiba ST-55 Service Data

ST-55
SIGNAL-LED ADJUSTMENT
Signal Generator Display
Frequency Frequency
FM Antenna
DISTORTION ADJUSTMENT
(1) Memorize 98 MHz for channel 5.
Adjust for minimum
FM OUTPUT distortion (0.3%) and from
Channel 5 98 MHz Antenna erring AQ0OmV to 500mV VTVM.
Terminal Adjust voltage between
TP-2 and TP-3 for OV.
FM OUTPUT
Signal Generator
VTVM
Oscilloscope
Distortion Meter
FM Antenna Terminal
Stereo (300 ohm)
Modulator
oO
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rele
Dummy ST-55
Antenna
Figure 14
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