[TechAssist] Re: Mitsubishi, VS5043, Random shutdown, FIX??

  • From: daryls_tv@xxxxxxx
  • To: techassist@xxxxxxxxxxxxx
  • Date: Thu, 19 Aug 2004 20:38:08 -0600

Thanks guys for the response.  A special thanks goes to Jeff at Shoreline 
Electronics for the tip for IC900 (STRM6811).  I had gone over this chassis 
using heat and freeze spray but missed this one.  It was well hidden under the 
heatsink fins and covered up by two large elecrolytics (couldn't be seen unless 
you knew where to look).  With the brightness at a minimum, the set would play 
for hours but as soon as I heated IC900 the set went into shutdown.  New IC is 
on order.
Again, thanks for the great tip.
Daryl
Daryl's TV
2402 Wyoming Ave.
El Paso, TX  79903
915-565-9184 Voice/Fax
daryls_tv@xxxxxxx
www.angelfire.com/tv2/daryls_tv

----- Original Message -----
From: "Shoreline Electronics" <jstielau@xxxxxxxx>
Date: Thu, 19 Aug 2004 13:53:20 -0400
To: <techassist@xxxxxxxxxxxxx>
Subject: [TechAssist] Re: Mitsubishi, VS5043, Random shutdown

> The second tip is your winner!  Change the STRM IC
> 
> ---------------------------------------------------------------
> Text pasted from WinSTIPS 2.0
> http://www.ServiceSoftware.com
> ---------------------------------------------------------------
> 
> MITSUBISHI   VS5043
> 
> Power Supply    Intermittent Shutdown
> 
> From Mitsubishi
> 
> Replace L5a00,If Coil Is Wrapped In Black Tape,With Pt#351p138020, (The New
> Coil Should Be Wrapped With Yellow Tape).This Is Located On   The Main-Pcb.
> 
> ---------------------------------------------------------------
> 
> MITSUBISHI   VS5043
> 
> Power Supply / Plays Awhile And Shuts Off / Intermittent
> 
> Phil Hull
> 
> Found A Defective Ic 900   Part # 267p129010  Str-M6811
>   Found Problem With Coolant Spray
> 
> ---------------------------------------------------------------
> 
> 
> 
> =================================
> Jeff Stielau
> Shoreline Electronics Repair
> 344 East Main Street
> Clinton,CT 06413
> (860)399-1861
> (860)664-3535 FAX
> jstielau@xxxxxxxx
> =================================
> ----- Original Message ----- 
> From: <daryls_tv@xxxxxxx>
> To: <TechAssist@xxxxxxxxxxxxx>
> Sent: Thursday, August 19, 2004 1:12 PM
> Subject: [TechAssist] Mitsubishi, VS5043, Random shutdown
> 
> 
> >
> > I have a VS5043 Mitsubishi that has random shutdown.  There isn't any flaw
> in the picture to indicate what circuit to look in.  It can shut down in a
> couple of minutes or play all day.  Checked for poor solder joints and found
> very few bad.  Tried heating and cooling and no help.  ESR'd the caps and
> didn't find any bad.  However, I can lower the brightness no minimum and it
> doesn't shutdown.  I suspect an ABL or shutdown circuit problem but I have
> no print to trace it out.  I didn't find any tips with this type of problem.
> > Any help or advice will be greatly appreciated.
> > Daryl
> > Daryl's TV
> > 2402 Wyoming Ave.
> > El Paso, TX  79903
> > 915-565-9184 Voice/Fax
> > daryls_tv@xxxxxxx
> > www.angelfire.com/tv2/daryls_tv
> >
> >
> > -- 
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