[TechAssist] Re: Zenith SY2568S Repeat Failure of Cathode Drivers
- From: "Gary Pahls" <bec@xxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 12 Nov 2003 07:28:08 -0600
Try putting an isolation transformer in the filament circuit. That usually
keeps the CRT from arcing back through the CRT board and blowing the
transistors.
Gary Pahls
Beloit Entertainment Center
Beloit, KS
----- Original Message -----
From: "Shoreline Electronics" <jstielau@xxxxxxxx>
To: "Tech Assist Group" <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, November 11, 2003 10:34 AM
Subject: [TechAssist] Zenith SY2568S Repeat Failure of Cathode Drivers
> Make : Zenith
> Model : SY2568S
> Problem : Repeat failure of Q5103 (Shorted) On Crt Board 2sc3229 . &
Q2204
> (Shorted) On Main Board 2n3906
>
> Part fail after a month or so ...maybe sooner!
>
> I know the CRT is at fault BUT has anyone tried subbing in some more
robust
> parts that handle the occasional fault in these tubes?
>
> In other words.....is there a Band-Aid fix for this?
>
> ==========================
> Jeff Stielau
> Shoreline Electronics Repair
> 344 East Main Street
> Clinton,CT 06413
> 860-399-1861
> 860-664-3535 (fax)
> jstielau@xxxxxxxx
> ========================
> "If you push something hard enough it will fall over."
> Fudd's First Law of Opposition - Sir Sidney Fudd
>
>
>
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