[TechAssist] Re: RCA-Proscan PS31122 CTC169EJ5 mutiple problems
- From: "Webster's TV" <webstertv@xxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 30 May 2005 19:38:47 -0500
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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