DX959 No audio out

[petey_racer]

I have a DX959 that I did the EKL2030 dual final mod to. It was not doing any more power than before the mod so I decided to revert back to stock to see what might have gone wrong. I know that even new parts can be bad.
Before the mod I was dk at around 8 watts and swinging to 20+. After the mod I was dk at around 5 and swinging to 15.
Obviously something went wrong.

After reverting back to stock I am dk back to around 8 watts, but I have no modulation and NO swing. It is as if I am only dead keying and not speaking into the mic. I do get a small amount of audio in talk back, but nothing like it was.

Also, what could I have done to the EKL mod? I have a good clue about this stuff and can solder quite well. I know I had everything where it should be and did not miss any parts in or out.
Possible as simple as a bad part?

Any help for a humble newbie.

 

[marven]

galaxy 959

For the first part of your problem;
a. Did you realign the radio after the ERF mod? All of them I have done, had to be.

b. Did you use anything for test equiptment, other than a wattmeter or modulation meter?

For the second part of your problem;

a. check for a solder bridge or cold solder joint.
b. Check for the part you may have put in backwards.
c. Recheck all work one step at a time.
D. What exactly is the radio doing now? RX? TX? Meter movement? etc.

I've successfully seen 40 + watts after conversion for the dual finals. Every time I didn't was because I had done something wrong. I don't believe you have a faulty part, just something not done quite right.
marven :roll:

 

[petey_racer]

I am just remembering this post, sorry for the long delay in replying.
I tried the single final mod after I was having problems and it is working fine now, although not near 40 watts. I do agree that it was most likely something I did as opposed to a bad part.
Even though I did re-check all my work I think I'll go back and try the dual final mod again. I really would like to get it working with that as opposed to the single final.

I am only working with a watt meter and volt & logic meters. For mod I was just using the radio.
I am working on getting some decent meters for diagnostics.

Thanks for the reply.

 

[Switch Kit]

40 watts some Petey ,others not. sounds like your 959 was doing fairly well the way it was with power in perspective. Marv was right about the radio needing alighned to a degree to maybe get a little more.Very good to hear your 959 is doing better, I've really come to like those radios over the last few years. I think for the price and performance and looks you really can't go wrong on those radios , and the audio on them are very nice to say the least. Peace

 

[pat]

959

i agree with switch kit. very good radios for the buck. have 4 of them now and looking to get a 5th.