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rawkdw
Joined: 19 Jul 2010 Posts: 5
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Posted: Mon Jul 19, 2010 3:41 am Post subject: Toshiba 57H82 |
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Hello,
Tv was working normally then went out with a pop. Now I have no sound or picture. Power light is working normaly. I replaced the convergence amps about 4 years ago. I've downloaded a service manual but have little experence fixing TV's but I'm guessing a power supply issue.
Thanks for any help,
Rick _________________ Rick Wise |
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jts1957
Joined: 24 Nov 2008 Posts: 2476 Location: Far, Far Away
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Posted: Mon Jul 19, 2010 4:56 am Post subject: |
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Power supply or horizontal output or even convergence again. _________________ You're over there, I'm over here. |
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minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
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Posted: Mon Jul 19, 2010 9:42 pm Post subject: |
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Check the pico fuses in the power supply to see which one blew. |
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rawkdw
Joined: 19 Jul 2010 Posts: 5
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Posted: Wed Jul 21, 2010 12:47 am Post subject: |
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Of the 11 fuses 6 were ok 3 were bad and 2 I can't get to without removing the board. What caused the fuses to blow?
Rick _________________ Rick Wise |
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jts1957
Joined: 24 Nov 2008 Posts: 2476 Location: Far, Far Away
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Posted: Wed Jul 21, 2010 1:20 am Post subject: |
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Fxx1? Fxx2? Fxx3? etc. etc. Which ones? _________________ You're over there, I'm over here. |
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rawkdw
Joined: 19 Jul 2010 Posts: 5
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Posted: Wed Jul 21, 2010 2:12 am Post subject: |
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Dang it! Sorry. 850,851,852.
Rick _________________ Rick Wise |
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minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
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Posted: Wed Jul 21, 2010 10:28 pm Post subject: |
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Here's a clue, 2 of the fuses feed the convergence IC's.... Replace the 3 5 amp pico fuses and convergence ic's. |
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becyn
Joined: 12 Jul 2010 Posts: 4 Location: Newburgh Ny 12550
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Posted: Sat Jul 24, 2010 2:43 am Post subject: |
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Man, I dunno... 3 fuses blown?? Did somebody drop a screwdriver in there?
Even with shorted convergence IC's , I've only seen one of the 24V lines blow a fuse. Most of the time the fuses are OK .
There must be more to this story...stay tuned! _________________ Visit McVey Electronics at http://www.mcveyelectronics.com for TV Repair |
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jts1957
Joined: 24 Nov 2008 Posts: 2476 Location: Far, Far Away
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Posted: Sat Jul 24, 2010 4:24 am Post subject: |
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Maybe there was some chaff mixed in with those party favors. _________________ You're over there, I'm over here. |
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Guest
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Posted: Mon Jul 26, 2010 4:32 am Post subject: |
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Parts ordered.
Rick |
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