[TechAssist] Re: Phillips 25B800 , shut down, need schematic

  • From: "al m" <ampm@xxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Mon, 9 Aug 2004 16:59:28 -0400

Check R460 and D460 and R58 or 508 on CRT board 22ohm resistor.
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message ----- 
From: "larry" <schntv@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, August 09, 2004 4:38 PM
Subject: [TechAssist] Phillips 25B800 , shut down, need schematic


> phillips 25b800, had no vertical,
> I cant seem to find a schematic of the crt board for this chassis.
> replaced vert ic,
>   rectifier, resistor,  2 electrolytics.
> comes on for 4 seconds then shutdown.
> too much screen drive.
> white with retrace.
> adjusting screen control is very sensitive.
> can a shorted vert. cause video damage?
> Thank you,
> Larry
>
> -- 
> Schneider TV & Electronic Inc.
> 5415 N. Wooster ave.
> Dover, Ohio 44622       www.geocities.com/schntv2000/
> 330-343-0768         FCC. first class & Extra class K8WLY
>
>
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