[TechAssist] Fw: Philips 20PT6441/37 Vertical collapse FIXED
- From: "AL LEATHERMAN" <alleathe@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 12 Oct 2005 14:33:48 -0400
Subject: Philips 20PT6441/37 Vertical collapse FIXED
> Philips 20PT6441?37
> Original symptoms: Pulses on and I see horizontal line
> changing in width, and vertical collapse. Install vert out,SAME. Found
> missing 8 volts coming out of 8volt switch,replaced switching
> transistor,SAME.
> Schematic unclear,so I traced foil to source of voltage that turns on 8
> volt switch,found tiny crack near tuner under main board. Fixed board with
> jumpers,used shielded lead(tiny) robbed from old Sony, for IF lead to
> tuner,FIXED!! Wasted hours but concluded I should have taken into
> consideration I had no sound.Thanks to all for the help.
>
>
> USE: alleathe@xxxxxxxxxxx
>
> DO NOT USE: alleathe@xxxxxxxxxxxxx
> Al Leatherman
> Al's TV Mine Hill, NJ. 07803
> 973-361-5796
> 973-361-5796
>
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