[TechAssist] Re: SHARP 27F-S200, major vertical problem
- From: "Glenn Larkman" <mail@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 30 Oct 2003 11:00:17 -0800
There's a rectifier diode connected across a couple of pins on the output
IC - check it for leakage.
Sometimes they measure good but are bad.
Use a fast diode to replace it.
Glenn Larkman
Audiotech
256 Nth Hwy 101
ENCINITAS CA 92024
760 944 9048
FAX 944 0345
mail to"mail@xxxxxxxxxxxxx"
"www.audiotech.net"
----- Original Message -----
From: "becyn" <becyn@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, October 30, 2003 10:23 AM
Subject: [TechAssist] SHARP 27F-S200, major vertical problem
Hello all,
We got this set in with a vertical collapse (line).
The vertical out IC was was shorted, which also took out the supply diode
and it's limiting resistor.
The 100uf charge pump cap was also changed for good measure.
Here's the problem...
Now it has 2/3 vertical raster with a bight white line in the middle!!!
Any ideas or personal experieces would be appreciated.
Jim McVey
McVey Alltronix
327 Broadway
Newburgh Ny 12550
ph: 845 561 8383
fx: 845 561 9017
Consumer electronics &
computer service.
Factory authorized for
over twenty brands.
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