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I was just given a uniden pc 78xl seems to be in good condition. How ever I can see the signal meter moving but No audio on recieve.i switch the PA no audio. I checks C 112 I change the driver and the finals(mosfet). No power out Any ideas..
I have received my finals I got (2) original 2312 and I bought (6) Hg 1969..
I check 2 hg in my 2950 and the output was(29watts) 2-4 watts more on the Mitsubishi
I placed them in the Galaxy.Saturn I see only 2 watts using (2)2 2166 the finals get barely warm..to confirm. I...
I have received my finals I got (2) original 2312 and I bought (6) Hg 1969..
I check 2 hg in my 2950 and the output was(29watts) 2-4 watts more on the Mitsubishi
I placed them in my Saturn I see only 2 watts the finals get barely warm..to confirm. I remove and place back in the...
So between yesterday and today I replace most of the parts IN the receive cutout Tr17 Tr 18 R66
R190 L6 D1 D2.. D16 D17 .how ever after some more test I found a the trace from r 66 to be broken. But I have remove the "schotty diode mod" now the radio works as should..will try to...
Thanks Andy very informative..I will .make some checks tonight and tomorrow and hopefully I am lucky. Will replace.the l6 and tr 17 .I have a n old dx88 which had been damaged in shipping.
Feel free.to share any more ideas
I will do my checks and let u knkw so far the rf gain pot is reading good .. this a continuity test from. R66 ro rf gain that is fine....from the header to r 66 is fine
Thanks Andy
But I must say the radio was receiving all along I had some challenges with the output which was due ton a final that was sorted out.i took up the radio and it was receiving as I had skip 30db then it just went down and it came up by the time I was able to check it was...
I change it ba k to stock.i check tr18 I also check d15 and d16 I can hear my near by stations but 2-3 dbs and even if I try to vary using the rf gain control it makes no change.
My galaxy saturn just stop receiving. It work fine yesterday... if i a radio is keyed near by the signal meter goes up but no small signals. Big signals show only2-3 dB So it's not a case of receive audio.tramsmit audio works. I have changed the rf gain control even with the small...
The signals I can hear are like 2-3db and shifting. The rf gain doesn't change the signal.
Unfortunately I don't have a signal generator. so I am a bit stuck..I
I tested tr17 and it checked fine.i also replaced it just to be sure still no luck. I saw a thread to change L12 I tried that.. also Where should I check now
I tried that first (bridging out the rf gain control)and it made no difference. I thought I had mention that.
The recieve didn't change at all when I bridge center to ground..I checked Tr17 which I found was change from a 2sc 1674 to a 2sc2999. Replace it just to be sure no difference also...
I turn the radio on channel 6 with my cobra I had,almost 30 dB. on the saturn I had 2 dB but what I found was moving th rf gain left or right didn't make a difference. I check the rf gain control by bridging it out and still increase in signal.. really strong station s 3dB. On other...
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