[TechAssist] Re: Proscan TV Model # PS27151 CTC169CE
- From: ElectronicRepair@xxxxxxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 13 May 2003 17:36:20 -0400
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=O3OfmSLHXygGHCv1W6Gz3Bgjtq3DNNMNdcKsYSVGC
>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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