[TechAssist] Re: CTC167r High B+ 154-158v
- From: "Teltek3" <teltek3@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 16 Sep 2003 07:45:13 -0400
Warren;
Try replacing CR4160...(176746) 5.6 volt zener Sub can be ECG/NTE 5011A.
-Ed-
Ed Gaidies
Tel-Tek Electronics
Ontario-Canada
teltek3@xxxxxxxxxxxx
----- Original Message -----
From: "Warren C." <warrenca@xxxxxxxxx>
To: "techassist" <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, September 16, 2003 12:30 AM
Subject: [TechAssist] CTC167r High B+ 154-158v
> Hi All
>
> This CTC 167R came into my shop dead. Customer said that the set would
> shut off all by itself
> then they would have to wait to get the set on again. Then the set went
> to off, period.
>
> We found the fuse and the Hot bad. Fixed that but tv still turns off
> after a few mins.
> Tested the B+ standby found it to be about 153. V . When set turns off
> now you must unplug the set for a
> few mins to get it on again. Today I tested B+ and found almost 158V.
> Way too high I think.
>
> Does anyone have experience with this prob?
>
> We have tested many parts near SCR so far no bad ones.
>
> The (do not adjust B+) pot is supposed to be 20K and ours reads 18.?K
> Is that enough
> to throw it off??
>
> Any Ideas All welcome.
>
> TIA
>
> Warren Campbell
> Campbell's TV & Appliances
> Cannington Ont
>
>
>
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