[tvservice] Re: 46W500 Problems

  • From: Anthony Clayton <tcccjc@xxxxxxxxxxxxx>
  • To: tvservice@xxxxxxxxxxxxx
  • Date: Wed, 12 Dec 2007 22:44:16 -0800 (PST)

Did you put heat sink compound or a rubber pad are the plastic ring on it 
before screwing it down?

Mike Schoettinger <kc8lqu@xxxxxxxxxxx> wrote:       .hmmessage P  {  
margin:0px;  padding:0px  }  body.hmmessage  {  FONT-SIZE: 10pt;  
FONT-FAMILY:Tahoma  }    its running but the 2SC5909 is still getting really 
really hot so I don't leave it running very long because it will blow it.  And 
the only place I found that has them at a reasonable price is in the UK and it 
takes 2 weeks to get the part.  

  Date: Wed, 12 Dec 2007 05:13:40 -0800
From: kstang69@xxxxxxxxx
Subject: [tvservice] Re: 46W500 Problems
To: tvservice@xxxxxxxxxxxxx

did you get it working?

Mike Selnick <selnick@xxxxxxxxxxx> wrote:       .ExternalClass .EC_hmmessage P  
{padding:0px;}  .ExternalClass EC_body.hmmessage  
Please remove my email address and my earlier message from your lists.  Thanks,
-- Mike

  From: krybak1@xxxxxxxxxxx
To: tvservice@xxxxxxxxxxxxx
Subject: [tvservice] Re: 46W500 Problems
Date: Tue, 11 Dec 2007 22:42:59 -0500

    .ExternalClass .EC_hmmessage P  {padding:0px;}  .ExternalClass 
EC_body.hmmessage  {font-size:10pt;font-family:Tahoma;}    check if leads of 
the transistor are reversed, base and emiter  cross them

  Date: Sun, 9 Dec 2007 12:55:33 -0800
From: tcccjc@xxxxxxxxxxxxx
Subject: [tvservice] Re: 46W500 Problems
To: tvservice@xxxxxxxxxxxxx

Did you try the bridge one of the diodes maybe shorted.

Mike Schoettinger <kc8lqu@xxxxxxxxxxx> wrote:       .ExternalClass 
.EC_hmmessage P  {padding:0px;}  .ExternalClass EC_body.hmmessage  
{font-size:10pt;font-family:Tahoma;}    Hi all,
I am in need of some help.  This Hitachi 46W500 is kicking my butt.  It keeps 
blowing the hv drive transistor.  I have replaced all the electrolytic in the 
circuit and the fly back and the smps transformer.  Does anyone have some 
experience with this issue.  Thanks.

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