20 Most Recent Hitachi 55HDS69 55 in. Plasma Television - Page 2 Questions & Answers

replace the mainboard.

If you have the Plasma model listed here it is 95% boards--you can check the fuse but that is about all the average person can do, presuming they can safely get the set apart----Unless you have a good background in this kind of repair I would suggest having a shop look at the set and get an estimate.

If you have the Plasma model listed here it is 95% boards--you can check the fuse but that is about all the average person can do, presuming they can safely get the set apart----Unless you have a good background in this kind of repair I would suggest having a shop look at the set and get an estimate.

Visit the site named 'Electro-help' for more details. Click this link. View it in "Timeslide" or "Flipcard" option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. You can also click the [Home] tab to the latest updates. It will make search easy. There are more than 1300 posts to different brand TVs now. Pull up older posts there.

Visit the site named 'Electro-help' for more details. Click this link. View it in "Timeslide" or "Flipcard" option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. You can also click the [Home] tab to the latest updates. It will make search easy. There are more than 1300 posts to different brand TVs now. Pull up older posts there.

Any number of issues including power supply to main board are possible------Have you removed power from the set and or a box if used for a while?

Hope you already resolve it, if not, here what I went through 1. go to http://www.service-docs2.com or similar place to get a service manual for your model ($10-18) 2. Open the back and follow instructions how to remove and test the SDR-D and SDR-U board on the far left (take one off, see if you could see half the picture). Inpsect the chips on those two boards, you might be able to spot the burned out holes (that would be the defected board, seemed to be a known issue for particular models) 3. If it is the board, go to ebay and get the pulled out board replacement ($70-90) I fixed my 50 inch plasma this way

It sounds like a shutdown circuit is being activated. This is normal in cases where the power supply id drawing excessive current. I would suggest that you get this looked at by a qualified professional. This is because this problem may be in the power supply and the voltages can get dangerous in this section of the TV set.

In any event if this is a power supply problem chances are the technician will just have to replace the power supply. Which should cost from 150-250 dollars.

I hope this helps

Shuttle83

Hello Aleone

you will need to take your Tv to a repair shop and have them replace the power supply.

Lower and upper buffers should be replaced together. No need to replace the main board.

tried with other component input like AV1 or AV2 doesn't work?.ok turn off the tv and unplugged it for a while to reset the power supply board.

If you have tried using different input devices, looked for loose contactsin power outlet, RC Jack, cable and connectors, the TV might need service.