Uniden 2830 Squelch problem

[KEV07]

Hi i have a problem on my 2830 there is no squelch whatsoever no auto squelch either has anyone any ideas what could be the cause regards kev.

[Bigdave]

You aint hit the pa button,just above the squelch ave ya m8........................

[KEV07]

No it was constant static S3 i just changed the capacitor as per this link as my fm/am receive was gone too all problems cured including the squelch problem one happy chappy!!!

[Otter]

What link?

[KEV07]

What link?

Sorry i was posting in 2 threads http://forums.qrz.com/archive/index.php/t-359364.html

[cb4ever104]

Nice to know.

[Atomic]

Wished I didn't have much static lol , s3 is nothing , I get slammed with 5-7 of white noise most days

[cjay]

No it was constant static S3 i just changed the capacitor as per this link as my fm/am receive was gone too all problems cured including the squelch problem one happy chappy!!!

It'd be worth replacing all the rest of those crappy capacitors too then.

[KEV07]

Wished I didn't have much static lol , s3 is nothing , I get slammed with 5-7 of white noise most days

Sorry i didnt explain the S3 was not actual receive static but electrical static caused by the failed capacitors even my friend who is less that a mile away was still only hitting me with S3 now the new cap is in there back to 30+

[Otter]

Best thing with those 2830s and early Lincolns is to replace all the 10V capacitors. I've seen five failed ones in a single radio. Don't forget the one on the display board, which stops the display from coming up when it goes short.

[KEV07]

Best thing with those 2830s and early Lincolns is to replace all the 10V capacitors. I've seen five failed ones in a single radio. Don't forget the one on the display board, which stops the display from coming up when it goes short.

Hi Otter what value capacitors should be used for replacing them? cheers.

[cjay]

Best thing with those 2830s and early Lincolns is to replace all the 10V capacitors. I've seen five failed ones in a single radio. Don't forget the one on the display board, which stops the display from coming up when it goes short.

Hi Otter what value capacitors should be used for replacing them? cheers.

Same value as the ones in there, the uF value anyway. The voltage rating doesn't matter so much as long as it's as high or higher than the original. You can buy caps with better ratings, 105 degrees centigrade, 125 degrees, even 150 degrees, that will last longer but you have to watch out for the physical size of them.

The nasty little back to back caps you found causing the squelch/noise problem should be replaced with a single part, a bipolar capacitor.

[KEV07]

The nasty little back to back caps you found causing the squelch/noise problem should be replaced with a single part, a bipolar capacitor.

I swapped the 2 x 47uF 10V electrolytic caps for a 22uf ceramic will this be ok? I also think the FM receive is a little low is there a cure for this?

[Otter]

I also think the FM receive is a little low is there a cure for this?

Possibly the 10V capacitor on the FM board, and if it has gone the 10R resistor on the board may have burnt out.

[cjay]

The nasty little back to back caps you found causing the squelch/noise problem should be replaced with a single part, a bipolar capacitor.

I swapped the 2 x 47uF 10V electrolytic caps for a 22uf ceramic will this be ok? I also think the FM receive is a little low is there a cure for this?

Yeah, two 47uF caps in series have an effective value of around 23.5uF, 22uF is well within the tolerance for that.
As for FM receive being low, sorry, don't know but there is one of those nasty caps on the FM board too. If the radio came to you with that fault is it possible it's been tweaked about to try and 'repair' the squelch fault?