[TechAssist] Re: Philips 25TS54 Ch 25B800-7562..no video
- From: "davehuston" <davehuston@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 14 Nov 2001 00:32:00 -0500
Check the b+ & b- supply resistors supplying IC500. I don't have the
schematic right here but one of the resistors supplies D409. Check the other
diode as well. Just working from memory of one with same problem I fixed
the other day.
----- Original Message -----
From: "Jeff Dougherty" <jeff@xxxxxxxxxxxxxxxxxx>
To: "Techsonline" <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, November 14, 2001 12:05 AM
Subject: [TechAssist] Philips 25TS54 Ch 25B800-7562..no video
>
> Original problem..set had a small portion of good video, lower left hand
> corner.
> Replaced IC500(vert--pins 4-5 low resistance) and D409(looked burned).
> Now, I have audio, but no video. Screen is kind of bright with 'rainbow'
> colors through it.
> C419 was a little high..replaced. Caps near IHVT test OK, and components
on
> CRT are fine.
> Channels change fine..during scene changes, I can see the screen change,
> usually gets darker.
> Where can I go from here...?
> Thanks.
>
> Jeff
> mailto:Jeff@xxxxxxxxxxxxxxxxxx www.9-11-2001tragedy.com
> FAX 1-413-280-0677
> Intrepid Video & Electronics
> Harrisburg, PA 17111
> 717-909-8844
> www.intrepid-video.com www.tech-repair.net www.thetoolcaddy.com
>
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