[TechAssist] Re: CTC197 Headaches,
- From: "Shoreline Electronics" <jstielau@xxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 26 Aug 2004 08:25:39 -0400
Check these scenarios.
On switching supplies like these , I try and check EVERY resistor and diode
and transistor in the primary and feedback loop to be safe..time consuming
but worth it.
Pull the Horizontal output out to prevent any over regulating disasters!
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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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RCA CTC197
Repeat Failure Of Regulator.
Garris Tv - New Bern, Nc
Replaced U14101, Q14101, R14146, R14145, R14125.
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RCA CTC197
Dead, Fuse Blown
Bryce - Vision Video Labs, Inc
Replace Q14101 (Irf740) #237476, U14101 (Ctda4605-3) #237476 And R14125
(100ohm)
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==========================
Jeff Stielau
Shoreline Electronics Repair
344 East Main Street
Clinton,CT 06413
860-399-1861
860-664-3535 (fax)
jstielau@xxxxxxxx
========================
"If you push something hard enough it will fall over."
Fudd's First Law of Opposition - Sir Sidney Fudd
----- Original Message -----
From: "Edward Gaidies" <teltek3@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, August 26, 2004 8:17 AM
Subject: [TechAssist] CTC197 Headaches,
> Anyone got any fixes in their database for a CTC197CN1 Model F36685.
> Customer said originally set was chirping even though it was not on.
> Fuse was blown when I started to work on it, and Q14101 was shorted.
> Have replaced Q14101, Also replaced R14146, Turned set on, and
> instantly shorted out Q14101 again. Replaced U14101 and Q14101 again,
> {now nothing, no relay click, just dead.} This is my first CTC197, so
> any help would be appreciated. This is a 36" set and customer is
> willing to spend a reasonable amount. I guess what I need is the
> Troubleshooting Guide, a some help from some that have had some
> personal experience on this chassis.
>
> Thanks;
>
> -Ed-
> Ed Gaidies
> Tel-Tek Electronics
> Ontario-Canada
> teltek3@xxxxxxxxxxxx
>
>
>
>
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