[TechAssist] Re: RCA CTC 203 HELP
- From: "Paul Gendreau" <Paul@xxxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 11 May 2002 20:46:41 -0400
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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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RCA CTC203
Dead - Shorted Q14401 Horizontal Output
Caused By Intermittent Open Solder Connection At The Input End Of L14401.
That Coil Connects The Driver Transformer To The Base Of The Output
Transistor.
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RCA CTC203
Dead
Perry Bower - Electric Medic
If The Set Has The Gemstar With The Two Flat Ribbon Cables, Then It Is
Probably Bad. Very Common Problem. We Have Several Different Versions Of
Gemstar For Test, That Is The First Thing We Sub On The Ctc203 Chassis For
Dead Set.
If That Is Not It, Unsolder The Collector Of The H.O.T., Then If Set Starts
Up With Sound, Then The Flyback Is Bad. These Two Fixes Probably Represent
80% Of All Failures, (Non-Lightning, And Power Supply Problems), That We See
In Our Service Center.
There Is A Coil Between The Secondary Of The Horizontal Drive Transformer
And The Base Of The H.O.T. That Usually Causes Intermittent Operation. The
Set Normally Will Have Sound When
That Connection Is Bad.
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RCA CTC203L
Dead
Doug - Vision Video Labs, Inc
Replace Shorted H.O.T. #Q14401 #247697, Cr14106 #243636
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Best regards,
--== Paul ==--
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Paul R. Gendreau, Jr.
Tel: 207-490-1835
Fax: 207-490-1893
Email: Paul@xxxxxxxxxxxxxxxxxxx
http://www.servicesoftware.com
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-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of Leslie A Jones
Sent: Saturday, May 11, 2002 6:24 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] RCA CTC 203 HELP
Set came in. I plugged it in and it squealed. Found
horizonal output transistor shorted. Changed output
and the set still squeals. Regulator checked good.
What am I missing? Any help appreciated.
Leslie A Jones, Jr
ELECTROFIX COMPANY
1321 Lincoln Street
Portsmouth, VA 23704
757-582-1618
--
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