[TechAssist] Re: Proscan TV Model # PS27151 CTC169CE
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 14 May 2003 07:38:31 -0400
Change U4101.
al marquardt
ampm@xxxxxxx
----- Original Message -----
From: <ElectronicRepair@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, May 13, 2003 5:36 PM
Subject: [TechAssist] Re: Proscan TV Model # PS27151 CTC169CE
> I replaced CR4118, C4145 the 2.2mf, 15mf, 47mf around U4101 and the B+ in
> the standby mode reads 160v and it still will not come on.
> And by the way this is a 27" TV not PTV.
>
>
> At 04:32 PM 5/13/03, you wrote:
>
> >Mark:
> >
> >Check or change c4402 and cr4402.
> >
> >or
> >
> >CR4118 is a very common problem (15 volt line). CHANGE CR4118 (even if
> >it checks "okay") and also change it's filter capacitor (I think it is
> >C4145). Then see what else you have after that. It may just be that
> >simple!
> >
> >or
> >
> >Also check or replace the 2.2uf and 15uf and 4.7 (or 3.9uf) caps
> >situated around U4101?
> >Those control your B+ which should be 143v with TV turned
> >off, but plugged in (standby mode).
> >
> >or
> >
> >Try removing the HV lead from the bleeder assy. If it runs and you have
> >about 30kv coming out of the IHVT, plug
> >it back in and disconnect all three HV leads to the CRTs. If the bleeder
is
> >ok start rehooking tubes one at a time till the culprit shows up.
(Bleeder
> >might be bad)
> >
> >or
> >
> >What is happening at the fault detector input of the CPU? U3100(2). This
> >should
> >be at least 3.7 volts.
> >
> >or
> >
> >Unsolder b+ to audio final(S), or just pull audio final(S), if set starts
up
> >then they are shorted. They will cause set to pulse 3 times if they are
> >shorted.
> >
> >Perry Bower, (EHEER) Electronic Home Entertainment Equipment Repairer
> >Electric Medic
> >"It's Cheaper to Keep Her"
> >http://www.electricmedic.com
> >Free Electronic Screensaver:
>
>http://www.eyetide.com/download/?s=O3OfmSLHXygGHCv1W6Gz3Bgjtq3DNNMNdcKsYSVG
C
> >3850 Washington Road Suite 5b
> >Augusta, Georgia 30907
> >Phone: 706-8MEDIC4 (863-3424)
> >Phone: 706-863-3474
> >Fax: 706-863-2316
> >mailto:info@xxxxxxxxxxxxxxxxx
> >
> >
> >-----Original Message-----
> >From: techassist-bounce@xxxxxxxxxxxxx
> >[mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of
> >ElectronicRepair@xxxxxxxxxxx
> >Sent: Tuesday, May 13, 2003 4:22 PM
> >To: techassist@xxxxxxxxxxxxx
> >Subject: [TechAssist] Proscan TV Model # PS27151 CTC169CE
> >
> >
> >TV came in dead, checked and found the HOT shorted and the main 5amp fuse
> >open, replaced the HOT and the fuse, now I have B+ on the collector of
the
> >HOT but it still will not turn on. Any suggestions will be appreciated
> >
> >
> >Thank you, Mark
> >Electronic Repair Services
> >48 W. James St.
> >Lancaster, PA 17603
> >Phone 717-393-5115
> >FAX 717-393-5115
> >
>
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> Thank you, Mark
> Electronic Repair Services
> 48 W. James St.
> Lancaster, PA 17603
> Phone 717-393-5115
> FAX 717-393-5115
>
>
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