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Re: TX500 Initial Problems

Well I feel like I'm talking to myself on this forum but just to put the wrappers on this subject. I've finally managed to solve the problems that I had and the TX500 is now able to transmit CW at 60W o/p on 472kHz and the LCD display is working correctly. The Pre-amp and 3.5Mhz converter also appea...
by G4GED
27 Feb 2014 22:20
 
Forum: Juma Discussion
Topic: TX500 Initial Problems
Replies: 3
Views: 2487

Re: TX500 Initial Problems

OK, now worked out how to command this rig to transmit.
However, although it switches to TX, there's no rf power output, so the saga continues...
Any advice appreciated should any member actually read this Forum anymore. I never see anyone else logged on except myself?
by G4GED
26 Feb 2014 20:38
 
Forum: Juma Discussion
Topic: TX500 Initial Problems
Replies: 3
Views: 2487

Re: TX500 Initial Problems

Problem now fixed.
The flat cable in J2 was faulty.
Pre-amp and converter test OK.
Now how do I check the transmitter?
Rgds
Dave
by G4GED
25 Feb 2014 19:32
 
Forum: Juma Discussion
Topic: TX500 Initial Problems
Replies: 3
Views: 2487

TX500 Initial Problems

Hi, Just completed construction. Took my time and checked every solder joint that was possible before powering up. In the first Operate LCD display, CURR is blinking and the BUZZER is beeping and the FREQUENCY is displayed as 300kHz not 500kHz? I've checked the pcb around Q8 and the tantalum capacit...
by G4GED
19 Feb 2014 22:22
 
Forum: Juma Discussion
Topic: TX500 Initial Problems
Replies: 3
Views: 2487

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