[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 

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

Russ Hoyt
Hoyt's TV
Exeter, NH

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