[TechAssist] Re: Hitachi model 43FWX20B sync problem.FIX
- From: Jim Myers <jr.myers@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 20 Apr 2005 08:57:17 -0500
IC910, 9 volt regulator on the power supply board was putting out
between 6 and 7 volts when cold. This was a newly rebuilt PTS board so I
didn't look there thinking it would be all ok. NOT! This supplies 9V to
the rain forest IC.
********************************
Since 1972 *
Jim Myers *
Telrad Electronics *
Fort Wayne Indiana *
********************************
Jim Myers wrote:
> The sync on This set will not lock for about three to five minutes when
> first turned on then it locks but still may loose sync on a weak signal.
> Problem is same using external A/V input so it's not a tuner problem.
> I have replaced the rain forest IC, no help, also since everything I
> checked pointed to the CS00641A module I sent it to PTS for repair but
> still have the same problem. Any and all suggestions will be welcome.
>
> Thanks,
> PS, Yes, I tried circuit cooler, no help.
> ********************************
> Since 1972 *
> Jim Myers *
> Telrad Electronics *
> Fort Wayne Indiana *
> ********************************
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