[TechAssist] Re: RCA-Proscan PS31122 CTC169EJ5 mutiple problems

Peter,

C4108(47m-50v) in chopper output circuit can cause the symptoms you
discribed.

                                      HTH
                                      Dan Webster
                                      Webster's TV
                                      Shullsburg, Wi.
----- Original Message -----
From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, May 28, 2005 4:07 PM
Subject: [TechAssist] RCA-Proscan PS31122 CTC169EJ5 mutiple problems


> RCA-Proscan
> PS31122
> CTC169EJ5
> MFD 1994
>
>    Mutiple faults some I've fixed or bypassed others remain.
>
> Primary complaint has sound - no picture (notes: Has OSD,  No PIP, Freeze
on
> PIP turns picture soild Grey raster)
>
> Appears to be PIP board, Bypassed with a 330uf cap on pin 1-3 of plug
P8002
> (Pin 1 +, about 4v DC between pins)
>    Any good fixes for this board?
>
> Secondary faults not in orginal complaint:
>
>   1. Picture Blooms
>          (C402  0.056 400v bulged) replaced stoped blooming
>   2. Hard starting, appears to go into shutdown the first few attempts.
>         ?
>   3. Squaking audio on poor signal conditions
>         ?
>
> Peter Oliver
> Tucson Radio TV
>
>
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