[TechAssist] repost Philips monitor Model 17E4222E81 No Raster makes noise
- From: <tvservice@xxxxxxxxxxxxx>
- To: "Tech-Assist" <techassist@xxxxxxxxxxxxx>
- Date: Fri, 9 May 2003 13:02:58 -0500
Anyone with service schematic out there?
since first posted have replaced monitor but would like to repair if cost
effective. I know I sound like a customer :-)
TIA
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
----- Original Message -----
From: <tvservice@xxxxxxxxxxxxx>
To: "Tech-Assist" <techassist@xxxxxxxxxxxxx>
Sent: Monday, April 07, 2003 2:10 PM
Subject: [TechAssist] Philips monitor Model 17E4222E81 No Raster makes noise
>
> Hey group,
> My workstation monitor wouldn't come on this morning
> green power lite stays on, hear HV and static but no raster. Screen won"t
> lite
> after a few seconds green power lite flickers and hear funny sound I
believe
> from yoke.Dc on input to flyback pulsing from +42-50 volts. There are 3
> resistors in series R457,R458 and R464 smoking I believe to be hor
centering
> circuit.
> If any of you service these monitors can you send pdf of service
scehmatics?
> Have you seen many bad yokes?
> The horizontal winding of yoke rings between 9-13 on Sencore LC75
> which seems normal. The flyback rings 29-35 rings.
> Have found no transistors in deflection circuit bad.
> tia
> Robert
> tvservice@xxxxxxxxxxxxx
> H & H Electronics Inc
>
>
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