Cobra 29 Cooked D-8 no transmitt

StrightClaw · Post by **StrightClaw** » Monday 30th Jul 2007, 3:38

I did the 2030 mod to a friends radio it worked fine when I gave it to him. It doesn't now. I opened it up and it had cooked D-8 I replaced TR 16 , 15, 14 IC3 and D-8 I didn't have a new companion part for the 2030 so that wasn't replaced.Anyhow as soon as
I keyed the mic it cooked D-8 again. I helped him install a new radio yesterday and he had a direct short to ground with his antenna.We repaired that and hes good to go now.Anyone have any ideas on whats going on with the 29 radio?

Rick · Post by **Rick** » Monday 30th Jul 2007, 7:36

You have a short in the PA stage. Try removing TR14 and TR15, key up, and see if D8 goes short, if not it is most likely that TR14 his gone short.

Rick.

StrightClaw · Post by **StrightClaw** » Monday 30th Jul 2007, 10:35

Thanks Rick im out of town now until friday ill check when I get back. Thanks Again!

StrightClaw · Post by **StrightClaw** » Tuesday 7th Aug 2007, 22:25

Replaced 14 &15 Good to go now. Thanks agin Rick.

The Defpom Forum, for RadioMods, S&M Software and Music by The Defpom

Cobra 29 Cooked D-8 no transmitt

Cobra 29 Cooked D-8 no transmitt

Re: Cobra 29 Cooked D-8 on TX