UNIDEN 2020
Sid 6 (26)
3. IF UNIT ALIGNMENT
3-1. Test Equipment Required
(1) Same as 2-1
3-2. Preparations
Take out IF UNIT (PC-078) and put SERVICE EXTENSION BOARD in its
place, then CONNECT the IF UNIT to the EXTENSION BOARD.
3-3. Coil Adjustment.
(1) Process the same as 2-4, (1) – (4).
(2) Adjust L351 – L354 to get the maximum readings or S-Meter or mV.
3-4. Carrier Balance Adjustment.
(1) Process the same as 2-4, (1) – (4), but note that SSG output should be 20 dB.
(2) Adjust CARRIER BALANCE potentiometer R374 and trimmer capacitor
C370 to get the maximum readings on mV.
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