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Sony HCD-GR8 - SW OSC Voltage Adjustment; SW Tracking Adjustment

Sony HCD-GR8
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– 37 –
SW OSC Voltage Adjustment
(GR8: Tourist only)
Setting:
Band: SW
Procedure:
1. Connect digital Voltmeter to diode D1 center lead and ground.
2. Adjust for a following value reading on digital voltmeter.
frequency part digital
Adjustment Reading on voltmeter
5.95 MHz T2 1.2 ± 0.1 V
SW
17.9 MHz CV2 8.5 ± 0.2 V
SW Tracking Adjustment
(GR8: Tourist only)
Setting:
Band: SW
Procedure:
Adjust for maximum reading on level meter.
Repeat the procedures is each adjustment several times, and the
frequency coverage and tracking adjustment should be finally
done by the trimmer capacitors.
Set frequency
part
Adjustment
7 MHz T1
SW
17 MHz CV1
Adjustment Location:
[TCB BOARD] (Component Side)
RV41
D1, CV2, T2
SW OSC Voltage
Adjustment
CV1, T1
SW Tracking
Adjustment
RV42
IC41
TM1
T2 T1
D1
CV2 CV1
30% amplitude
modulation by
400Hz signal
AM ANTENNA terminal
SPEAKER terminal
set
AM RF SSG
level meter

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