[TechAssist] [Update] Mitsubishi CS-35401 Video comes and goes - Sound stays.

The PIP looked bad, with leaking fish caps, so I done the bypass
anyway,...but,...it didn't help with my problem.
I need to troubleshoot the Video switching ckts., but I don't have a
schematic of that area. Can anyone provide me with a pdf. file for the Video
switching ckts., or at least tell me which IC , and part number I need to
check ?

Thanks again,
LLW

LeRoy Westlund
Westlund TV & Electronics
97 North Main                             " I forgot,..to remember,..
Centerfield, UT 84622-0087           to forget "
Ph./Fax  435-528-3822
mailto:LLW@xxxxxxxxxx

-----Original Message-----
From: Carol Rundle <brundle@xxxxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
Date: Friday, July 29, 2005 3:05 AM
Subject: [TechAssist] Re: Mitsubishi CS-35401 Video comes and goes - Sound
stays.


>Leroy,
> Sure sounds like PIP , c7001,4.7@35v. ,also open',corroded, connection at
+ side of c7001,If not there,
> Might try heating , cooling cap's on A/V jack panel, (hair drier).
>
>  Bill,
>   Bill's TV
>    Sonora,Calif.
>LeRoy Westlund <llw@xxxxxxxxxx> wrote:
>This set has a good ,stable picture when using Ant-A or B.
>Everytime I select External-1, or External-2, it takes about 45 seconds to
2
>minutes, before the picture shows up. It just has a black screen with OSD
>OK.
>
>Sometimes the video will go away while watching it for a while. It is
>completly unpredictable. Tapping on PIP module, or using freez-spray has no
>effect.
>It will go bad every time, when I switch inputs from Ant-A or B, and back
to
>Externals 1 or 2.
>
>I think the PIP module is OK, cause the problem only shows up on external
>inputs.
>Should I try a PIP bypass first, anyway ?
>
>Could it be that the Video switching IC is bad ? If so,...what is the ckt.
>designation, and part number ?
>Is it located on the Video input jack board ?
>
>Do any of you have any tips for a problem of this nature ?
>
>Any help is appreciated,
>LLW
>
>LeRoy Westlund
>Westlund TV & Electronics
>97 North Main " I forgot,..to remember,..
>Centerfield, UT 84622-0087 to forget "
>Ph./Fax 435-528-3822
>mailto:LLW@xxxxxxxxxx
>
>
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>brundle@xxxxxxxxxxxxx
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