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REPAIRED Panasonic PT-53WXD63G convergence out    
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ntehicks



Joined: 25 Mar 2009
Posts: 162
Location: Herriman, Utah

PostPosted: Fri Jun 04, 2010 4:33 pm    Post subject: REPAIRED Panasonic PT-53WXD63G convergence out Reply with quote

This TV belongs to my neighbor. so I thought I would help him out and see if I could get it working for him. His kids would really like there video Game tv back.
I wanted to see if there is any other parts besides the SK chips that is recommended to be replaced?
thanks.


Last edited by ntehicks on Sat Jun 12, 2010 10:52 am; edited 1 time in total
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ntehicks



Joined: 25 Mar 2009
Posts: 162
Location: Herriman, Utah

PostPosted: Wed Jun 09, 2010 9:33 pm    Post subject: Reply with quote

Ok I replaced the STK chips and I am unable to converge the red. the others are working ok. I turned off the tv and opened it back up one of the heatsinks is hot and the other is luke warm. does this mean I have a bad chip?
JTS1957



Joined: 21 Jan 2009
Posts: 2347
Location: Far, Far Away

PostPosted: Wed Jun 09, 2010 11:12 pm    Post subject: Reply with quote

Bias resistors?
?O.K. / Open / Changed value?

ntehicks wrote:
I am unable to converge the red. the others are working ok.


How were they working BEFORE the chips were changed?
ntehicks



Joined: 25 Mar 2009
Posts: 162
Location: Herriman, Utah

PostPosted: Wed Jun 09, 2010 11:28 pm    Post subject: Reply with quote

I have checked all of the 2.2ohm 82ohm and 120ohm 2 watt resistors in the area of the STK chips. the 82 and 120 show a dead short the 2.2 test good in circuit. I have floated one side on all of the resisters and they all test good.
JTS1957



Joined: 21 Jan 2009
Posts: 2347
Location: Far, Far Away

PostPosted: Wed Jun 09, 2010 11:42 pm    Post subject: Reply with quote

Were you "unable to converge the red, while the others worked ok" with the ORIGINAL chips installed?
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kuhurdler



Joined: 28 Dec 2006
Posts: 2865
Location: Overland Park, KS

PostPosted: Thu Jun 10, 2010 7:56 am    Post subject: Reply with quote

check for solder splashes
ntehicks



Joined: 25 Mar 2009
Posts: 162
Location: Herriman, Utah

PostPosted: Thu Jun 10, 2010 8:35 am    Post subject: Reply with quote

with the Original chips none of the Convergence would adjust. with the new chips the Red is the only thing that won't adjust. and I notice one of the stk's gets alot hotter than the other.
I have looked for solder splashes/bridges. I will double check this..and get back with you.
ntehicks



Joined: 25 Mar 2009
Posts: 162
Location: Herriman, Utah

PostPosted: Sat Jun 12, 2010 10:59 am    Post subject: Reply with quote

Thanks for all your help.. I noticed as I soldered back in place the one side of each of the resistors in the convergence section that the solder connections didn't look very good. Lots of cold solder joints. I re flowed and then put the boards all back in. Tested and convergence is now perfect. I think my neighbor will be happy. To test it out I watched the movie Avatar. This tv has a great picture. Once again thanks for your help..
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