[TechAssist] Re: RCA G27666AT / CTC187BH after unplugged hours, hard to turn ...
- From: MDileo0000@xxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 6 Dec 2003 07:35:12 EST
Phil,
Look for ring cracks around the HO driver transformer and the coil
connection to the base of the HO transistor. Common problem on this chassis.
Look for
ring cracks around pins of STK730-010. Cracks, cracks, cracks. It makes sense
that this problem would seem to happen when the chassis is totally cold and
shrunk back. Everything shrinks back when it is cold 8^).
Dominic DiLeo
Atlantic TV
Freeport, Maine
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In a message dated 12/5/03 9:13:25 PM Eastern Standard Time,
tjanphyl@xxxxxxxxxxxxxxx writes:
> CTC187BH chassis console.
> The customer claims if the house power goes off for a few hours, or if
> unplugged for a few hours, then plugged in again, it usually will not
> power on again, sometimes for months.
> I was suspecting something in the standby voltages. This set uses an
> STK730-010 based smps.
> Any histories on this strange symptom?
> Kinda hard to troubleshoot...
> Phil Bader
> --
> Philip Bader
> Jan Phyl TV Inc. (estab. 1976)
> 3420 Recker Hwy. Winter Haven, Fl. 33880
> Fax (863) 299-8821
> email: tjanphyl@xxxxxxxxxxxxxxx
>
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