[TechAssist] Re: RCA CTC185AB Dead F25216WT may 1996

  • From: "al m" <ampm@xxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Sun, 27 Oct 2002 08:13:58 -0500

 You don't mention the 5V supply anywhere. Do you have a scat?
al marquardt
ampm@xxxxxxx


----- Original Message -----
From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, October 26, 2002 5:34 PM
Subject: [TechAssist] RCA CTC185AB Dead F25216WT may 1996


>
>
> RCA model F25216WT
>    Chassis ctc185AB
>   MFD May 1996
> Symptom DEAD no flux at plug in no attempt to start or turn on
>
> Has voltage
> Q4114    D=165V, S=162V, G= 135V
>
> Q4401 H.O.T Collector = 162V
>
> U4107 (12V reg) pin 1 (in)= 27V pin 3 (out)=11.9
> CR4110 cathode= 27.8V
> saw tip for CR4704 replaced no change.
>
> The regulator and H.O.T. test normal in circut this set still has the
> electoltic in regulator circurt.. I have the regulator KIT but it doesn't
> have all the symptoms, ie usually the regulator blows. The customer said
it
> just stopped working.. Any ideas
>
>
> Peter Oliver
> Tucson Radio TV
>
>
>
>
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