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4 - 4
DC power supply
13.75 V/10 A
R392
Vdd voltage adjustment
Q51
Vdd voltage check point
R336
Head set modulation
adjustment
CP1
TUNE voltage check point
R59
TUNE voltage adjustment
L40
PLL lock voltage
adjustment for TX
L41
PLL lock voltage
adjustment for RX
X1
Reference frequency
adjustment
CP2
PLL lock voltage
check point
R121
R110
Modulation depth
adjustment
R150
Output power adjustment
J6, pin 3
Audio input point
Audio
generator
pin 5 ( PTT)
pin 3 ( MIC)
pin 4 ( GND)
pin 2 ( MICE)