TX500 tx output, Missing signal Pin 76

[HB9FND]

HF Works with test connection after D5 to ground.
As found out there is no signal comming from Processor PIN 76 14-18m. No shorts could be discovered from PIN 76 to Ground, checked with a ohm meter.
What are the terms that pin 76 generating the necessary signal?? Thank you!

regards
HB9FND
Alex

[OH7SV]

Alex,

If the CW keyer is working and TX500 is in TX state the processor pin 76 should be going high/low as keying signal.
Is the CW keyer working?

73 Matti OH7SV

[HB9FND]

Hej, Problem solved. I cooked the processor, after the replacment parts received the trx is working fine. Thanks for the good support.

regards HB9FND