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Philips 51pp9303h/17 convergence problems    
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TryTibbs



Joined: 02 Dec 2009
Posts: 2

PostPosted: Wed Dec 02, 2009 2:22 pm    Post subject: Philips 51pp9303h/17 convergence problems Reply with quote

Philips 51pp9303h/17 rear projection tv. Convergence bad, not adjustable. Noticed the blue gun seems to jitter as if noise was present in the blue gun. Like a high voltage problem. Was wondering if replacing the convergence circuits would rectify the problem or am I looking at something more drastic here?
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Jesse Mack



Joined: 22 May 2008
Posts: 600
Location: The Last Frontier

PostPosted: Thu Dec 03, 2009 12:47 pm    Post subject: Reply with quote

On the left side circuit board that is laying flat there are two convergence IC's that are mounted on the very large heat sinks that is on the right edge of the circuit board. Look to the front of the set portion of the board close to the edge and on the left of the heat sink and observe the light grey resistors that stand up away from the board about 1/4 inch to see if they show signs of overheating. If they do you will have to replace the convergence IC's and the damaged resistors.
Be forewarned, this gets a little messy on this model (harness and board removal) you will need torx type of tools to remove this board.

Hope this helps

Jesse
TryTibbs



Joined: 02 Dec 2009
Posts: 2

PostPosted: Thu Dec 03, 2009 5:44 pm    Post subject: Reply with quote

Thanx for the input!
pigaman



Joined: 07 Dec 2009
Posts: 1

PostPosted: Mon Dec 07, 2009 12:34 pm    Post subject: Philips 51pp9303h/17 convergence problems Reply with quote

I am having a typical convergence problem with my tv. I have inspected the 6.8 ohm resistors and they show no damage what so ever. Could the STK392-120 chips still be the problem?
kuhurdler



Joined: 28 Dec 2006
Posts: 2855
Location: Overland Park, KS

PostPosted: Mon Dec 07, 2009 2:38 pm    Post subject: Reply with quote

that sounds likely
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