[TechAssist] Re: Philips 32PT663R37 chassis LO1.1UAC strange shutdown.
- From: joel e sanford <jo-rope@xxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 2 Dec 2004 08:59:17 -0600
jEFF! dOES THIS APPLY TO sympton of have to push remote on at least
four times in order to get turn on, and when it does come on three lines
appearRGB and the channel OSD near the top potion of the CRT?
Joel Sanford
dba speedy elec.
retiired
chicago illinois
On Wed, 1 Dec 2004 23:33:15 -0500 "Intrepid Video Support"
<support@xxxxxxxxxxxxxxxxxx> writes:
> John,
> I don't know if this will help:
> Philips\27PT543S37A L01\FOR IMPROVED RELIABILITY When servicing
> the L01.1U AC chassis that uses 25 inch
> and 27 inch standard curved face CRT's\always examine capacitor 2462
> located near the Base lead of the
> Horizontal Output transistor 7460\\L01\If 2462 is a small blue or
> orange part replace it with 2022 333
> 00084. Use no other part here\\\\\\\\
>
> This from Force:
> Symptom:
> At turn on the raster appears and rapidly changes colors. Then
> shutdown (protection) happens. If placed
> into Factory Mode using the 4835 310 57511 FMR remote the flashing
> will continue. Sg2 voltage is stable
> and clean of disturbance.
>
> Cause:
> Open resistor 3451 and shorted diode 6447. 3451 is a stand up
> resistor and may be measured in-circuit.
> Normal value is between 2 and 10 ohms (varies with model-see Force).
> Parts are on top of board at Section 6B.
>
>
> Resolution:
> Replace 3451 and 6447. NOTE: 3451 is a critical Safety part and
> must be replaced by the exact
> part/value.
>
> Symptom:
> Interference in picture.
>
> Cause:
> Yoke leads near CRT Dag ground wire
>
> Resolution:
> Bundle yoke leads away from CRT Dag ground wire and from tuner area.
>
> CAUTION Do NOT bundle Vertical and Horizontal yoke leads together.
> Make 2 separate bundles.
>
>
> Jeff
> --
> Intrepid Video TV/VCR Repair
> 263 S Front St, Steelton PA 17113
> 717-939-7708; (F) 717-564-4952
> www.intrepid-video.com www.tech-repair.net
> ----- Original Message -----
> From: "John at Main TV" <maintv2004@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, December 01, 2004 1:52 PM
> Subject: [TechAssist] Philips 32PT663R37 chassis LO1.1UAC strange
> shutdown.
>
>
> I have this 32" set made in 2003. The picture comes on with strange
> colors,
> alternating predominately red, green or blue. The focus seems to
> shift and
> there is noise in the picture, like hundreds of tadpoles swimming to
> the
> left. It always comes on with a menu labeled "active control". It
> will
> then shut down in 15 seconds and require 2 power button pushes to
> turn on
> again. Interesting, if I continue to change channels, it will not
> shut down
> but the picture never gets better. All the PS sources and
> scan-derived
> sources check OK. The picture tube does not seem to be shorted. I
> think it
> may be the IHVT but I am looking for another opinion before I order
> it. I do
> have the service manual. TIA, John.
> John Mielke
> Main TV
> 636 main St.
> Longmont, Co
> phone 303 776 6955
> fax 303 776 0792
> maintv2004@xxxxxxxxxxx
>
>
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