[TechAssist] Re: UPD---2nd request. PTK169PAAS..Shutsdown.
- From: peggs <peggs@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx, <techassist@xxxxxxxxxxxxx>
- Date: Tue, 09 Mar 2004 14:21:00 -0800
c4401,2
cr4401,2
Peggs
At 12:04 PM 3/9/04, Intrepid Video Support wrote:
>Found resonator had electrolyte all around it...cleaned board, replaced
>resonator and two caps right
>there...now standby is fine, but of course this *&^*^* set still shuts down.
>Voltage on pin 16 of U4101 is 10.4 v...stand by and when I press power
>doesn't change...pin 15 is the
>same..
>I've been all over the troubleshooting guides, changed ALL the caps in the
>regulator circuit, CR4118
>changed and checked all the resistors...
>On me last breath...I appreciate the many responses and will send my thank
>yous after I get this fixed...
>Thanks.
>
>
>Jeff Dougherty
>Intrepid Video TV/VCR
>263 S Front St
>Steelton PA 17113
>fax...717-564-4952
>www.intrepid-video.com www.tech-repair.net
>
>----- Original Message -----
>From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
>
>Still working on this, can not figure out why it is shutting down as HV
>builds.
>Would a defective vertical section cause this set to shut down?
>REG B+ is 170 in standby, drops to 162 when I press power..is this normal
>on this set?
>Schematic shows Reg B+ <72-A>, Not sure what that means.
>I've repaired many of these with a splitter, flyback or replacing the
>parts in the power supply.
>I've done all this and set still shuts. I've replaced all the caps, the
>boxed caps in front of the HOT,
>CR4118(tested OK), U4101, Q4101, Q4401..and all the caps. Checked all the
>diodes and resistors and can
>find no problems.
>I'm running out of time on this one....Does anyone have any idea what I
>may have missed?
>Thank you.
>
>Jeff Dougherty
>
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