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VS-50703 turn off after 3 seconds

 
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cesar



Joined: 06 Dec 2009
Posts: 2

PostPosted: Sun Dec 06, 2009 3:37 am    Post subject: VS-50703 turn off after 3 seconds Reply with quote

I have an old VS-50703, it turn off after 3 second, I realize that the Diode D522 (the one in the PCB-main that rectify the -24V that powerup the convergence power amplifiers) was burned, I change it and the TV work for some 15 minutes and after burn the same diode again. CAn any body help me?
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lervinfix



Joined: 05 Dec 2009
Posts: 5
Location: philippines

PostPosted: Sun Dec 06, 2009 4:14 am    Post subject: Re: VS-50703 turn off after 3 seconds Reply with quote

cesar wrote:
I have an old VS-50703, it turn off after 3 second, I realize that the Diode D522 (the one in the PCB-main that rectify the -24V that powerup the convergence power amplifiers) was burned, I change it and the TV work for some 15 minutes and after burn the same diode again. CAn any body help me?

hi!! try to change it a fast recovery diode...and change the filter capacitor in that connection...Smile
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Mon Dec 07, 2009 3:02 am    Post subject: Reply with quote

And was the convergence off pointing at the convergence amps are bad buring out the diode?
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cesar



Joined: 06 Dec 2009
Posts: 2

PostPosted: Wed Dec 16, 2009 7:48 pm    Post subject: about the diodes Reply with quote

maybe, I also was trying to set up the convergence, how to restart every thing to the factory default?

By the way, I'm using fast recovery diodes, I will try changing the capacitor
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