Question about Sanyo DP42746 42 in. Plasma Television

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No picture or sound. Power board led flashing in sequence of 12. Says D12V on legend.

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For what it's worth, you can download the official Sanyo repair manual for this TV (DP42746) at It might give you some insight you need especially directing you towards the D12V. Hope this helps

Posted on Jan 05, 2011


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Sanyo plasma tv led 8001 blinking 12 times, indicates d12v code

Check and replace the damaged component/s at its main board. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.

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1 Answer

I have a 42" Sanyo with Samsung power supply board LJ44-000092F and I have no pic, after 10 minutes the power supply board goes into diagnosis mode and the LED 8001 flashes 12 times and repeats this over...

I'll just hazzard a guess here as you sound to be technical.
I speak from general experience fixing power boards and not from experience with this particular one.

Trace back the 12V chassis and you're likely going to reach a 7815 or 7812 stabilizer of voltage that you should replace and that will likely take care of the problem.

Also look for the filter caps around it - before and after - as they can both cause the problem if vented.

If 12V is used for the audio it is also possible that the audio amplifier may have bad caps in it or a dying amplififer IC. But that is less likely.

Finally, you can always send the board to us for diagnostic although this is kind of a bad problem to have since it requires waiting 10 or so minutes to show up...those are always turning up losing money for us than making money...

Hope this helps!

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I have sound but no picture. I found on your sight that it may be the Y or Z Sustain board??? Is this right?? Thanks

it could be anything try giving the model number of the tv and also if the led is flashing what is the sequence and if they are fast or slow flashes

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1 Answer

Power comes on but turns off, when back is removed the light on the power unit flashed 12 times, defined as D12V problem.

So the 12V power supply is either not there (faulty power board) or is shorted by whichever board it is passed to.

I do not know this particual Sanyo, but I know what I'd do - I'd open and see at the power board which of the output cables carries 12V; they are most commonly labelled on the power board, right next to the output pins.

12V is usually power going to the audio amplifier and sometimes to tcon (LCD controller) of even the main board , but it won't go to to the ysustain - the other apparently large board when you open the TV.

Of all listed I'd say only the audio amplifier is likely to short...all others are possible, but highly unlikely.

BTW what do you mean "but turns off, when back is removed"?

Nov 06, 2009 | Sanyo DP42746 42 in. Plasma Television

1 Answer

No Picture, The power and the OPC Led's are blinking

Your TV is in fault protection. Due to blows caps on the PSB-power supply board.

Best Regards and Semper Fi

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Sanyo dp42746 low volt power problems

The power supply is failing, or there is another circuit area that is pulling too much current, and the supply is going in to protect mode.

This would require proper troubleshooting by an experienced tech. If the problem is very involved, or the tech is not familiar with the set, he will require the service manuals and service information.

Jerry G.

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I have a panasonic plasma th-42px60 tv for about a year and a half now when i changed the fuse in the plug the power led light is flashing but there is no picture

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1 Answer


I dont think Sony has a "12" blink code, the highest (being in a newer set) is a "10", might try rechecking that, as for the code 2 that is an OCP, usually a shorted horizontal output transistor/Convergence IC's/High Voltage distribution block. My bet is the Block as HV tends to break down parts like that over time You must be careful when removing the anode leads as you can break the tip off or burn something up if not done right.

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