![background image](http://html1.mh-extra.com/html/icom/vhf-marine-transceiver-ic-m501euro/vhf-marine-transceiver-ic-m501euro_service-manual_2038216015.webp)
Lock voltage
adjustment for TX
L10
Output power
adjustment
R84
Frequency deviation
adjustment
R84
Reference frequency
adjustment
C70
Lock voltage
check point for RX
CP1
Lock voltage
check point for TX
CP2
Lock voltage
adjustment for RX
L13
–
+
[PTT]
J7
1
8
Audio generator
300 Hz to 3 kHz
AC millivoltmeter
2–200 mV
5 - 3