| Author |
Message |
    
Perrym1962
Member
Username: Perrym1962
Post Number: 63
Registered: 11-2002
| | Posted on Monday, March 16, 2009 - 4:10 pm: | 
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Have a Superstar 3900 single final. Keys up, but no audio or modulation at all. Am and ssb as well. Not the mic. |
Barakuda318
Intermediate Member
Username: Barakuda318
Post Number: 180
Registered: 2-2002
| | Posted on Tuesday, March 17, 2009 - 2:49 am: |
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This may seem like a stupid question as most people would have checked already and you may have, but I have to ask did you check the microphone conections inside the radio, pretty easy for them to come loose sometimes, thats what was wrong with mine,...Hope this helps... also does the radio have audio as far as recieve goes....??????????
73's Barakuda318
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Perrym1962
Member
Username: Perrym1962
Post Number: 64
Registered: 11-2002
| | Posted on Tuesday, March 17, 2009 - 3:37 pm: |
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They seemed to be ok. It recieves great. When you key it up the hand tries to move barely, but hardly any at all. |
Barakuda318
Intermediate Member
Username: Barakuda318
Post Number: 181
Registered: 2-2002
| | Posted on Wednesday, March 18, 2009 - 1:56 am: |
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Could you elaborate on when this problem first occured and did you notice anything unusual before it started this problem....?? thanks.
73's Barakuda318
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Perrym1962
Member
Username: Perrym1962
Post Number: 65
Registered: 11-2002
| | Posted on Wednesday, March 18, 2009 - 10:48 pm: |
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It just happened at once. Did not have any unusual characteristics before this. I may just take it to a local tech and get him to fix it before I screw something up, but thanks for your replies. |
Barakuda318
Intermediate Member
Username: Barakuda318
Post Number: 184
Registered: 2-2002
| | Posted on Thursday, March 19, 2009 - 1:32 am: |
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That was going to be my next suggestion actually, lol if one of the Oscillators went out or went horribly off frequency you'd have to have certain equipment to test and fix anyway, sorry we couldn't figure it out, good luck with it..
73's Barakuda318
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Hotwire
Senior Member
Username: Hotwire
Post Number: 2751
Registered: 1-2005
| | Posted on Thursday, March 19, 2009 - 5:14 am: |
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Perry,
This is a common issue. If recieve works and you can hear the recieve like normal, radio keys up just a little... Sounds like the RF final needs replaced. You might want to replace the driver transistor also. Its an easy fix but before you hook it back up I would go over the antenna installation. Check the whole coax/antenna/mount assembly for damage. You could have a short somewhere, could be from moisture in the coax or even a pinched coax, possibly a faulty connector. A short will without a doubt cause rf final failure. A very high swr is a good indicator of a short. Also,be sure that the radio is tuned within its operating limits and it will last forever.
Kenny
CEF491
Reading the mail around Indianapolis Indiana!
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Stepchild
Intermediate Member
Username: Stepchild
Post Number: 187
Registered: 11-2002
| | Posted on Saturday, March 28, 2009 - 10:15 pm: |
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Is replacing the driver and final as easy as it sounds or do you have to do an alinement to? If its as simple as soldering the new ones in then I have a 3900 that needs a new final and driver.
What about the ERF2030 finals in a SS 3900???
Stepchild
CEF-187
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