Radio Make and Model: cobra 29xlr
PCB Number: uniden
PLL Number: upd858
Test gear available: radioshack test/pwr meter fluke multi tester
Symptoms: no transmit
What is working: everything but transmit
What has been tried: relaced driver and final with new,test tr8 test good,tx alingnment/tweak tx coils a bit then back
Did it suddenly happen ?: yes
Anything else that may be of help?: bought on ebay ,I think this radio may have gotten wet at somepoint as it is from Louisiana a flood ridden state
Cobra 29XLR NO TX
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- Dead Key
- Posts: 10
- Joined: Tuesday 4th Jan 2011, 12:49
- First Name: Ron
- Location: medina ohio
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- Newbie
- Posts: 3
- Joined: Saturday 12th Oct 2013, 10:17
- First Name: Clint
- Location: Shreveport
Re: Cobra 29XLR NO TX
Does the radio go into TX when keying your microphone?
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- Dead Key
- Posts: 10
- Joined: Tuesday 4th Jan 2011, 12:49
- First Name: Ron
- Location: medina ohio
Re: Cobra 29XLR NO TX
Yes it goes into transmit and you can hear a slight high pitched squeal,i am going to try changing tr8 from parts radio will get back to you..
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- Dead Key
- Posts: 10
- Joined: Tuesday 4th Jan 2011, 12:49
- First Name: Ron
- Location: medina ohio
Re: Cobra 29XLR NO TX
Tried changing tr8 and still nothing,going back in circuit and test more components.
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- Newbie
- Posts: 3
- Joined: Saturday 12th Oct 2013, 10:17
- First Name: Clint
- Location: Shreveport
Re: Cobra 29XLR NO TX
Check TR14 and see if it is switching?