[Premium-Rx] Display for Racal RA 6790/GM aka R-2174(P)/URR

[Heinz Breuer]

Hello,
I have two defective RA-6790/GM receivers. They stopped working some time ok one after the other. One shows error 01 followed by error 15 if I continue the BITE test with LOCK CW, the other shows error 03 followed by error 15.

Error 01 and error 03 bother indicate a failure on A7 board which is the 1. local oscillator synthesizer board.

I would appreciate any hint where to start troubleshooting. I would also appreciate if anybody knows who specializes in repair for these receivers and might take them in for repair. I am located in Germany.

If I get these fine receivers repaired I would like to change the displays. They are showing "darkend spots" it looks a bit like oil spills. Are replacements available at reasonable prices? 
vy 73 Heinz DH2FA, KM5VT


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