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Text excerpt from page 9 (click to view)
TUNER SECTION [AM] BAND switch : AM
NOTE: The adjustment should be performed setting the area indication to �Eur�. (Refer to �Receiving Stations Outside Your Country� on page 3.) After the adjustment, reset the area indication as it was. AM RF SSG Put the lead-wire antenna close to the set. 30% amplitude modulation by 400Hz signal output level : as low as possible AM VT VOLTAGE ADJUSTMENT Adjust for following values on digital voltmeter. Display indication Digital voltmeter reading Adjustment part AM531 kHz 1.5V T1
AM VT VOLTAGE ADJSTMENT BAND switch : AM digital
voltmeter TP22 (VT)
+ �
[FM] BAND switch : FM
FM RF SSG 0.01µF 22.5kHz frequency deviation by 400Hz signal. output level : as low as possible
[FM VCO Adjustment] Procedure :
FM RF SSG 0.01µF Carrier frequency : 98MHz Modulation : no modulation to ANT (TP1) VTVM 32 output level : 0.1V (100dB) to ANT (TP1)
set PHONES
1. Connect frequency counter to the positions shown below. 2. Tune the to 98 MHz. 3. Adjust RV1 for 19 kHz ± 100Hz reading on the frequency counter.
frequency counter TP23 (IC2 Pin !�) 1µF 100k (IC2 Pin 9)
� Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors.
AM IF ADJUSTMENT Adjust for a maximum reading on VTVM. T2 450 kHz
�
Adjustment Parts Location
AM TRACKING ADJUSTMENT Adjust for a maximum reading on VTVM. L5 CT1 FM IF ADJUSTMENT Adjust for a maximum reading on VTVM. L3 10.7 MHz 621 kHz 1,395 kHz
[TUNER BOARD] � Component side �
T2 : AM IF T1 : AM VT TP23 TP22 L5 : AM TRACKING
