[TechAssist] Re: RCA CTC 169AS, Chopper transistor shorted.
- From: "Damon" <DAMON101@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 7 Jan 2003 08:00:22 -0500
That 47uf or 39uf cap between the chopper output and the chopper IC can get
leaky and eat the output. ESR won't show leaky cap either --Replace it.
Damon Brunger
damon101@xxxxxxxxxxxxxx
Telrad Electronic Services
Ft Wayne, IN 46815
----- Original Message -----
From: "Kevin" <kevintv@xxxxxxx>
To: "TECH-ASSIST" <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, January 07, 2003 3:47 AM
Subject: [TechAssist] RCA CTC 169AS, Chopper transistor shorted.
> Hi fellow techs,
>
> Brought in just the dead chassis on this 31" CTC169AS. Found chopper
> transistor shorted and 5 amp fuse open. All caps in P/S check good for
> ESR. Can the chopper transistor short by itself? I thought that dried
> up caps usually cause the short. Set was on when it went dead. I have
> only had the regulator and caps cause a dead set. I have never had the
> chopper short, so I am unfamiliar with this repair and what could cause
> the short. TIA
>
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx
>
>
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