TX500 tx output, Missing signal Pin 76

General discussion

TX500 tx output, Missing signal Pin 76

Postby HB9FND » 24 Jan 2013 08:12

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 :P
HB9FND
 
Posts: 3
Joined: 15 Jan 2013 20:03
Location: Switzerland

Re: TX500 tx output, Missing signal Pin 76

Postby OH7SV » 25 Jan 2013 08:31

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
User avatar
OH7SV
Moderator
 
Posts: 72
Joined: 11 Nov 2011 07:00
Location: Finland

Re: TX500 tx output, Missing signal Pin 76

Postby HB9FND » 09 Feb 2013 04:09

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

regards HB9FND
HB9FND
 
Posts: 3
Joined: 15 Jan 2013 20:03
Location: Switzerland


Return to Juma Discussion

Who is online

Users browsing this forum: No registered users and 2 guests