[ICOM] IC765 - no rx, no tx

Bert Almemo balmemo at sympatico.ca
Mon Feb 25 10:52:44 EST 2008


Hi guys,

Now I have received some more details about my friend's 765. Some of
previous info was not correct. This is info from my friend's measurements.
Here goes.



No Receive
No Po on Xmit in CW/LSB/USB but full carrier output in RTTY
Audio Gain Control works to change hiss from speaker but not strong.
Mode change makes no difference
No popping sound switching from Tx to Rx
Turning RF Gain moves S meter up scale as normal.
No S meter movement in RX or TX position - needle in left position/normal,
not pegged
T/R relay clicking when switching from RX to TX - seems to be OK

RF board - D47 voltages OK except when trying to measure the anode in TX
shuts the radio down.
Cathode of D47 is 13.8 in TX but when I touch DVM to anode it shuts down
every time.
Anode of D47 is OK in Rec 9.2 and cathode is 8.4.

I hope this info will help you to help me. Thanks!

73 Bert, VE3OBU





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