View Single Post
  #9   Report Post  
Jason D.
 
Posts: n/a
Default

On Mon, 23 May 2005 15:24:02 -0700, "sofie" wrote:

Kip:
Well, maybe... or maybe not. The OP did not say if he still had picture
and sound.... AND the "high pitched squealing noise" TOO..... if so, the
flylback and HOT are obviously OK, as you obviously would already know.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Kip and others,

RCA had bulletin out on switching power supply noise but that was long
ago so most of chassis had the fix.

But one remain is RCA being cheap didn't secure ferrite beads on
component leads. Secure them with silicone glue by dabbing them to
the PCB and some to end of it to the leads. This will stop the squeal.
There are four beads on two diodes on output side of power supply,
usually one or two on a diode in horizontal circuit.

I had to do this frequently for this complaint and all CTC203 and
ATC113 get same treatment for any reason.

Cheers, Wizard