[TechAssist] Re: RCA TV model F32672SB, CTC187CL3, Regulator IC runs very hot (U4101)--Any ideas???
- From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 29 Jul 2002 17:19:31 -0400
See if CR4106 is shorted.
Phillip R Hull
phil245@xxxxxxxxxxxxx
----- Original Message -----
From: "David French" <PrecisionElectronics@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, July 29, 2002 8:09 PM
Subject: [TechAssist] RCA TV model F32672SB, CTC187CL3, Regulator IC runs
very hot (U4101)--Any ideas???
>
> Set came in with the reg. IC U4101 (STK 730-150) shorted. Replaced with
the
> same, but the IC only lasted 20 min. before it shorted. Replaced it again
> with STK 730-030 and CR4106 (130V diode) and also found R4126 (30K off raw
> B+ primary side).
> Ran set for 4 hours and it works ok, but Reg. heatsink is very, very hot.
I
> am a little afraid it will fail again. Anyone have an idea??
>
> Thanks for your help,
>
> Dave
> Precision Electronics
> 101 W 8th Ave.
> Johnson City, TN 37604
> PrecisionElectronics@xxxxxxx
>
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