Question about Samsung DVD-HR720 DVD Recorder

1 Answer

Faulty power supply board

Hi, I have just had my recorder checked out as all displays failed while in stand-by. I was told the power supply board had a fault, and was no longer available. Can you suggest any sites for a replacement?

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  • david182 Oct 03, 2008

    Hi, can you tell me what component it was you found to be faulty on the power supply board, it might be worth trying a replacement component rather than scrapping the whole machine.



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I have exactly the same problem. Indeed the power supply was defect. I have repaired it. Now the display is working but it is still not working : It displays LOADING... and that's all. Probably the controller card (the one with the LSI LOGIC chip) is also defect. It is impossible to repair, it has to be replaced.
I think this recorder is not 'CE'.

Posted on Oct 01, 2008


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Power 48v check

Either the power supply is
not generating a proper 48
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Display no longer works. Receiver still works, however. What's up?

This is purely a fault in the display unit. you need to check the power supply to the display unit. Check the filament voltage and the grid voltage to the display from the display driver processor.
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Power supplierd but does not start recorder no


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It's easy to locate - just follow the power cable - and easy to replace.

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There is a very good chance it is, in fact, not there.

There's another board which commonly fails on many plasma TVs and the effect is exactly as you describe. It's called Y-Sustain board and you can tell which one it is by looking at the side of your TV and seeing which large board has manny plastic connections that enter the display on the side.

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It is unable to hold a proper AC current at this time.

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