Question about Sanyo DP42849 42 in. HDTV
Tv made squilching noise for bout week then pic went black. has audio but no pic, green power light is on. which board is bad, power board, av board or inverter board? when i turn on tv i can see a pic light up for about a milla second then black, help : [
Sounds like an inverter problem. On some of these sets, the inverter and the power supply are on the same board. These boards tend to be quite pricey, $100 + range. I've worked on your particular model with the same problem, and it was a bad inverter/power supply board. I would recommend you get a diagnosis to be sure.
Posted on Oct 29, 2012
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Posted on Jan 02, 2017
SOURCE: Sanyo LCD TV DP32746 no picture
Easy way to Diagnose is get a known good CCFL from a laptop or LCD TV and start plugging it in to the existing Cathode's Ports one at a time. Generally its a bad CCFL on these multiple units.. (2,4,6) Bulbs.. Moniserv.com for replacements.
Posted on Apr 04, 2008
SOURCE: Sanyo Plasma Tv Black screen
I had the same problem and Sanyo does not make parts for this model anymore. Luckily I had the extended warrantee so they reimbursed the full purchase price.
Weird that the poster above mine was able to get a part; I was told the part is no longer available.
Posted on Jun 16, 2008
Hi there! The panel may be in protection mode. The Inverter board is the most logical area to start after checking power supply Voltages.(5,6,24 and 13Volts). There may be coils on the Inverter Board which have bad soldering or faulty. Other than this it may be main board which controls switch on or off. If all else fails, refer to a repairer. Beware of High Current!!! Best Wishes and Good Luck, Jus004
Posted on Aug 23, 2009
The power supply board is dying.That the board,where the power a/c cord plug into it.That the power supply board.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
Posted on Jul 16, 2010
Power supply board is dying not giving the tv correct voltage anymore.The power supply board,that the board power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.
Posted on Sep 10, 2010
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