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D52W19 Flyback

 
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lord_ghostrider



Joined: 01 May 2009
Posts: 4

PostPosted: Fri May 01, 2009 5:49 am    Post subject: D52W19 Flyback Reply with quote

I am having the same problem everyone else is having with this tv. Power light blinks three times and then nothing. I had it repaired once already and now it is doing it again. I am wondering if there is a check that I can do with a DMM and confirm that this is the problem before I order the part. Also a thanks to minnie in advance as it was one of your answers that led me to locating that part and finding it online.
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Fri May 01, 2009 11:04 pm    Post subject: Reply with quote

Standard repair again. Replace the flyback and check the horizontal output transistor for shorts. They sell a flyback tester but its not worth buying one anymore.
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lord_ghostrider



Joined: 01 May 2009
Posts: 4

PostPosted: Sat May 02, 2009 2:48 am    Post subject: Service Manual Reply with quote

Thanks for the help. Don't suppose you know of a good place to get a service schematic for this tv do you?
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lord_ghostrider



Joined: 01 May 2009
Posts: 4

PostPosted: Thu May 21, 2009 3:36 am    Post subject: Still not working Reply with quote

I changed out the flyback and the transistor has no shorts in it. Any other ideas as to what could be wrong with?
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jts1957



Joined: 24 Nov 2008
Posts: 2472
Location: Far, Far Away

PostPosted: Thu May 21, 2009 6:50 am    Post subject: Other ideas Reply with quote

cp120 220mf at 35v cp150 2200mf at 16v cp110 220mf at 200v cp114 220mf at 35v check/replace all these caps. Also resolder suspicious joints on this board. Check your fuses and DL032, DL030 for shorts. Also DL106.
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lord_ghostrider



Joined: 01 May 2009
Posts: 4

PostPosted: Thu May 21, 2009 9:05 pm    Post subject: Board location number for HOT transistor Reply with quote

If possible could you tell me the board number for the HOT transistor to make sure I am testing the correct transistor?
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jts1957



Joined: 24 Nov 2008
Posts: 2472
Location: Far, Far Away

PostPosted: Thu May 21, 2009 10:12 pm    Post subject: Reply with quote

Board with Flyback on it (don't lick the red wire) - largest metal heatsink.
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jts1957



Joined: 24 Nov 2008
Posts: 2472
Location: Far, Far Away

PostPosted: Thu May 21, 2009 10:13 pm    Post subject: Reply with quote

Board with Flyback on it (don't lick the red wire Exclamation ) - largest metal heatsink.
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