[TechAssist] Re: Hitachi 57SWX20B Dark Video : Intermittent
- From: "Jeff Farnsworth" <jlfonz@xxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 11 Jan 2005 16:52:04 -0600
Just got back from doing one. You'll find that by removing and replacing
the crt modules the set may work properly---and it may work properly for
months. Apparently some crts (primarily Hitachi) had some sort of coating
on the crt pins that causes leakage. I used jewelry silver cleaner today as
another tech had tried this one 3 previous times. Applied it with a tooth
brush then micro washed (alcohol) the cleaner away then air blew it dry.
Gotta make its good and dry.
TV Doctor
Avalon, Wi
----- Original Message -----
From: "Shoreline Electronics" <jstielau@xxxxxxxx>
To: "Tech Assist" <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, January 11, 2005 11:34 AM
Subject: [TechAssist] Hitachi 57SWX20B Dark Video : Intermittent
> Make : Hitachi
> Model : 57SWX20B
> Chassis : DP-27
> Problem : Video Goes Dark Intermittently : Affects Picture & OSD
>
> I witnessed this occurring at the customers house. Basically looked like
> the brightness was way too low. OSD was affected also.
>
> Pulled the lightbox and of course at the shop is now playing OK.
>
> The customer had a different shop look at this one a couple weeks
> ago.....they took the entire set and returned it and all was OK for a few
> days. Then it went dark again. As I mentioned before , It was failing
> when we picked up the lightbox.
>
> Does not seem vibration sensitive. Will let it play for a few days and
see
> if it fails.
>
> Anyone had problems with this newer HD chassis that are similar to ours?
>
>
> =================================
> Jeff Stielau
> Shoreline Electronics Repair
> 344 East Main Street
> Clinton,CT 06413
> (860)399-1861
> (860)664-3535 FAX
> jstielau@xxxxxxxx
> =================================
>
>
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