Question about Samsung DVD-HR720 DVD Recorder

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Power supply down

Who has experience with a power supply down failure of the DVD-HR720
No clock or lights visible anymore, no internal power supply available.
Who can help?
Thanks a lot

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  • Anonymous May 12, 2009

    Yes I have the same problem



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My samsung dvd-v1000-vcr do not turn on

Posted on Aug 27, 2008

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Vizio E550i-b2 has no picture

Could be an open internal fuse or power supply failure

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Recommended blank discs to use

Please can someone recommend a "DVD-R" and "DVD-RW" to use with the DVD-HR720 DVD Recorder. Please can you also list where to source the particular discs. Thanks.

on May 25, 2008 | Samsung DVD-HR720 DVD Recorder

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bad micro probably. could be power supply,might be better to replace

Sep 06, 2012 | Samsung DVD-HR720 DVD Recorder

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Hi, I have a Samsung HR720 DVD-TV recorder and since we have gone digital the quality of the picture recorded is blurry. I have checked the back of the recorder and it doesn't appear to be any option...

Hi, Check the settings in the TV menu. Set the sharpness abit higher. Also if you have already you need a set top box (PVR) to view digital signal and to record it as well. Good luck.

Jul 21, 2011 | Samsung DVD-HR720 DVD Recorder

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Panasonic dmres30v dvd/vcr combo total dead no clock desplay ,power ,could it be a fault in power supply sections ?

This could be down to one single component, a swollen looking capacitor. Normally 630uF capacitor on the power/digital board, located under the rear of the Ram drive. Tell me, did this failure happen afer you unplugged the unit?
Kind regards,

Jan 12, 2010 | Panasonic DMRES30V DVD Recorder/VCR Combo

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Faulty power supply board

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'.

Sep 25, 2008 | Samsung DVD-HR720 DVD Recorder

1 Answer

Power supply

Is this by chance a computer power supply? Does the computer come on when the power button is pushed? If so, then the fan itself is bad- bearings are stuck/lubricant dried up etc. Replacement fans are readily available at low cost.

if the power supply is dead, then likely an internal component has failed. If you have some tech savvy, a voltmeter, soldering/desoldering items & skill, you may be able to repair the supply. A very common failure is one or more electrolytic capacitors, and these may show visible signs of failure- bulged out end, and/or leakage.

ATX style power supplies, used in most machines of the past 8-10 years have both a standby and main section. The standby supplies a low current +5 volts to a small portion of the motherboard. When the pwr button is pushed, the main section comes on, and supplies +5 (Red wires), +12 (Yellow wires), +3.3 (Orange wires), -5, -12. Look here for this info

Voltages are precisely regulated, and any substantial deviation (more than a few 10ths of a volt) indicate a problem, especially on the +5 & +3.3 lines.

Anyway, you could make these checks. Replacement electrolytics- use the Panasonic FC series (designed for switching power supplies) available from Digi-key electronics, or equivalents (Mouser electronics another possible supplier).

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double check connections match on both ends tv and dvd also check the input on the tv sure you video cable is on the same one you audio cable is on.

Mar 16, 2008 | Samsung DVD-HR720 DVD Recorder

1 Answer

Dvd file system

The first is rather easy. You will have to finish the DVD to get it working. After copying a title, finish the DVD and put in you computer's DVD player. Either the film should start to play or you will be prompted whether you want to show the contents or other options. If either of this happens, you are good to go and you can copy the Video_TS folder which should be visible to your hard drive. Done it several times.
The second solution is something I try to figure out myself but it seems DV in is really IN and not OUT....


Oct 16, 2006 | Samsung DVD-HR720 DVD Recorder

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