4
GF-480
Use a screwdriver with a plastic or ceramic grip for all adjustment.
1. Set the function switch to the FM position.
1. Set the function switch to the AM position.
2. Connect the signal generator output through a 75 ohm dummy
2. Connect the test loop antenna across the output of the signal generator.
3. Connect the oscilloscope to the speaker terminal.
3. Connect the oscilloscope to the speaker terminal.
4. Set the signal generator as listed in the alignment chart.
4. Set the signal generator as listed in the alignment chart.
3-1 TUNER SECTION
3-1-1 FM adjustment
3-1-2 AM adjustment
antenna to "ANT" on MAIN PCB.
3 ADJUSTMENTS AND CHECKS
AM ANT COIL
PVC
C1
FC1
GF-480 MAIN PCB
L4
C2
FC2
L6
L3
L2
L5
