[TechAssist] Re: [TechAssist-B] Re: ctc169BG5(Help)regulation drifts
- From: John Conti <contitv@xxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 15 Mar 2007 09:23:09 -0700 (PDT)
Terry, Also might try check R4114 A sealed Pot.(500) . Had one that was spotted
and kept creeping up on the Regulation. R4113 is you standby ajustment should
be set for 2.88v at pin 7 of ic4101 while in standby.
Peggs <peggs@xxxxxxxxxxxxx> wrote: Are the other PS Secondary B+'s rising
also ???
You didn't mention C4108,39uF/100v,in the PS Primary.
Peggs
At 04:48 AM 3/15/07, Terry J Hutchison wrote:
>This set is driving me nuts, this ctc169 has a problem with the regulated B+.
>Monitoring col of HOT at plug in the B+ is 137vdc within a minute or less it
>will begin to climb to around 150 to 152 vdc. I have done all the normal stuff
>changing the regulator IC, C4104,4102, 4110, 4101, 4118. CR4116 tests good but
>I changed it anyway. I took the horz cir out by desoldering the IHVT B+ lead
>and I still have the regulation problem on CR4116. I would appreciate any help
>at this point. Thanks Terry
>
>Terry J Hutchison
>T&G TV Repair
>Kingsland GA.
>sony1@xxxxxxxx
>
>
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