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Vizio L32 tv power supply problem
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ramtour2



Joined: 30 Dec 2010
Posts: 1

PostPosted: Thu Dec 30, 2010 6:24 pm    Post subject: resistor values Reply with quote

The resistor values are:

R912 = 1.2 5%
R913 = 3.6 5%

I would like to know what caused them to burn. I got these valuse off a replacement power supply.
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Guest






PostPosted: Thu Feb 17, 2011 1:41 am    Post subject: Reply with quote

aparnell wrote:
Does anyone know the values of resistors R912 &913 on the power board? I am working on a L32HDTV10A. IC901 burned and I can't see the value to check them. Thanks.


Do you have part number for IC901 - L32HDTV10A? mine need to replace but I could find part number.
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vtech



Joined: 08 May 2006
Posts: 1264
Location: USA

PostPosted: Thu Feb 17, 2011 2:57 am    Post subject: Reply with quote

ICE3B1565 made by Infineon. But it may not be the only problem as someone posted earlier in the thread
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kb3



Joined: 30 May 2011
Posts: 1

PostPosted: Mon May 30, 2011 12:52 am    Post subject: Reply with quote

A friend of mine was watching his L32HDTV10A a week ago when he heard a bang that he at first thought was a gunshot. Apparently it came from the Vizio since it immediately went dark and completely unresponsive. No lights. No LEDs. No sound.

Have tried unplugging for extended periods, replugging, holding power button while replugging, pressing green micro-switch (whatever that is for) on main circuit board. No change. No lights. I found the fuse on the power board and was hoping that it would be as simple as replacing it, but after removing and checking it the fuse seems to have continuity. I have examined all the caps on the power board and main board and see no sign of explosion -- or even bulging or leaking. (Wonder what caused the bang!)

I am much more familiar with computer hardware than with TV hardware, but I am guessing the problem is with the DPS-199APA/0500-0507-0180 power board. Looks like I would be able to pick up a used one on eBay for about $65, since new ones seem to be "out of stock" everywhere. Did find a rebuilt 0500-0507-0240R on partstore.com that claims to be compatible, so maybe that is a better choice -- just getting a little pricey at this point...

Any other suggestions on where to go from here? Thanks!
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Homer78
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PostPosted: Mon Jul 04, 2011 2:47 pm    Post subject: How do I know if it is my power supply? Reply with quote

Our TV went out after a very close lightening strick. I'm not sure if it actually got "hit," because everything else on the surge protector still works fine. However, the TV quit turning on. I don't want to pay the $85 for the ps and find out it still doesn't work. What are the chances that it is just the power supply?
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LKnitter
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PostPosted: Wed Sep 07, 2011 7:53 pm    Post subject: Re: How do I know if it is my power supply? Reply with quote

Homer78 wrote:
Our TV went out after a very close lightening strick. I'm not sure if it actually got "hit," because everything else on the surge protector still works fine. However, the TV quit turning on. I don't want to pay the $85 for the ps and find out it still doesn't work. What are the chances that it is just the power supply?



Did you find anything out on this as we have the exact same problem!! THANKS!
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kurtrow
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PostPosted: Thu Sep 22, 2011 4:55 am    Post subject: power supply Reply with quote

I'm trying to repair a power supply (199AP) for this Visio 32" set and could find no problems, but no voltage at all comes out, not even the housekeeping 5v. Then noticed the thermister is cracked, so pulled that out. But now I can't figure out what to replace it with. Anybody know what thermister is used for 'NTC1' on the board? Or maybe there is a workaround?
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train123



Joined: 26 Jan 2010
Posts: 88
Location: Canada

PostPosted: Wed Sep 28, 2011 6:37 pm    Post subject: Reply with quote

You can usually read the numbers on the thermister and cross it to an equivalent. Here is a site to try. http://www.nteinc.com/
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hdman97



Joined: 05 Feb 2005
Posts: 1

PostPosted: Sun Oct 02, 2011 5:58 pm    Post subject: Reply with quote

Anyone done repair on main board? no picture no sound
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jts1957



Joined: 24 Nov 2008
Posts: 2476
Location: Far, Far Away

PostPosted: Sun Oct 02, 2011 7:03 pm    Post subject: Reply with quote

Nope. Technicians are all just board swappers now.
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