[Elecraft] XV222 RX is Dead, Need Advice

[k2qo]

Don and gang,

I replaced Q3, U1 and the ADEX mixer. Results? Transmit works FB as before
and the RX still has no sensitivity. No change at all. I ran through the
setup related to the RX section and one thing stands out. 

Part VIII: RX Input Alignment
Trimmer cap C1 has no effect on the AC voltage at the phone output
connector. This is the same result I had before replacing the 3 parts.

I think I may be down to signal tracing starting at the N connector. But
without a list of test points and voltages, this may be a nonproductive
PITA. 

The next step is to sell this unit for parts or buy a working used XV222 so
I can backward engineer a solution. 

73,
Mark K2QO




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