Question about Sanyo DP32746 32 in. LCD Television

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32' sanyo HD

I when i turn it on it flickers for a second or two then it blacks out but the power is still on

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Posted on Mar 05, 2009

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If the picture on your TV flickers, there may be a simple fix. Here are some possible answers and suggested solutions:

1. Your set-top box may need a simple reboot. Unplug the power connection to the set-top box for about 30 seconds. Reconnect the power and turn the set-top box back on.

2. Check all of your cables for a loose connection by tightening each one with your fingers.Flickers can sometimes be caused by bends in rigid cables, too.

3. If your picture flickers to a black or blue screen, you could have a bad set-top box. Contact your cable or satellite service provider about installing a new one.

4. If you still have audio, the flickering could also mean that you have a failing backlight.

For additional troubleshooting information, check out the chart at TV flickering for more solutions. I hope this helps!

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chances are your backlight inverter circuit has failed, repaired one a few months back with the same problem. To verify this, take the tv in a dark room. plug it in and take a bright\ flash light and shine it on the screen. turn the set on, you should see either the screen saver or video from your source. If this is the case, your inverter is at fault. Depending on your model, your backlight inverter is built onto your power supply board so you will have to replace the power supply/inverter board. Not hard to do, you can do it yourself with care.

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The black screen problem of your TV can be attributed to a backlight driver failure, busted backlight, or LCD driver failure.

The flickering indicates a failing backlight driver or a failing backlight. The screen should be totally black, without any glow, when either of them is not working. To verify, grab a torch and shine it on the screen. You will be able to see a faint display telling you that the backlight is busted or the backlight driver is faulty. If not, the LCD driver or the LCD panel itself is faulty, although it has a low probability due to the symptoms of the problem. The only way to fix the problem is replacement of the faulty part. You may need the service of a qualified technician to determine exactly which one is the root of the problem that needs replacement.

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It sounds like you have a power supply problem, this powers the inverter! Where you just replaced the inverter, we could assume it is good! Look for some bad caps (capacitors) on the power supply board. They will look bulged on the top an may be a little leaky (brownish stain). The power supply can fail on some output and be good on others. Was the back light inverter new? If all else fails, see if you can return the back light inverter and get another! I hope this is helpful!!

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