[tvservice] Re: New Post--Fuse keeps blowing; Dead TV
- From: "Mike Selnick" <selnick@xxxxxxxxxxx>
- To: tvservice@xxxxxxxxxxxxx
- Date: Sat, 24 Apr 2004 17:25:58 -0400
Thanks, Russ. Hello List members. My first time aboard. It's been decades
since I did TV repair work.
I'm working on a 31-inch RCA GE 31GT659, Code 45104, Chassis CTC 186/7
bought from Sears in Feb. 1996. Set is completely dead. Fuse f4001 is
open.
I replaced the 5A. fuse and 2.3-ohm 15-watt power resister r4001 and plugged
the power cord into 120VAC power. *Even before* I had a chance to turn the
set ON, the Fuse immediately opened and f4001 resister was very hot to the
touch. A good on-line troubleshooter recommended (for similar model RCA GE
set) that ic U4101 (STK730-010) is probably shorted and should be replaced.
I tried that and burned up another fuse. I did quick ohmmeter checks of all
the diodes and resistors in the power supply and they look ok.
Question: What jumps out as the most likely faulty component to replace and
how would you test it beforehand? ( B+ filter? Degauss relay k4201 or
thermistor rt4201, Switch Mode xformer T4101, Hybrid Switch Mode Reg U4101
ic, Closed caption filterQ3302?)
----Original Message Follows----
From: "Hoyt's TV" <hoytstv@xxxxxxxxxxx>
Reply-To: tvservice@xxxxxxxxxxxxx
To: <tvservice@xxxxxxxxxxxxx>
Subject: [tvservice] Re: New Post
Date: Sat, 24 Apr 2004 09:36:29 -0400
I think you have the honor of making the first post, Mike.
I signed up for the list on March 21st and yours is the first I've seen from
it.
Russ Hoyt
Hoyt's TV
Exeter, NH
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