20 Most Recent Toshiba 42HP66 42 in. LCD Television Questions & Answers

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If garanty period is available , then you should return it for another.

The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size. Search the site by type in the "brand name" to your device; [Exclude the model number], in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

hi this fault sounds like a bad tab/ribbon fault, at top of the tv are ribbons connector to the screen, when one is faulty the heat makes them flex causing this fault, you can bond the ribbon down with a bit of rubber to stop it flexing, but this not a permanent repair as it is a screen fault. hope it helps regards shaun

Sounds like T'Con fault. Contact any service technician to make it confirm. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/

Switch to the an input that is not being used. The bars are present, go into the menu and reset the tv to factory settings. If the bars are present it would indicate hardware failure. If the blank bars are not present on the other input, something is going on with the cord, or a setting in your set top box

Reboot your PC! When the pc starts booting up push F8 it will take you to the same screen asking you if you want to run the pc in safe mode! What you want to do is to select the Start PC in VGA mode! It should set your video card to a default setting allowing it to work with the TV!

I hope this helps you!

Please feel free to call or message me if you need more help!

Dave
1-503-432-9904
[email protected]

Hello to all that have Red or Green pixels in the dark areas of any given picture on your plasma screen. I can help your fix your plasma TV. All that needs to be done is an adjustment on the Y sustain board. You will need to remove the stand and the back cover from the TV. Then you'll want to reinstall the stand so that you can set the TV in the up right position. Then hook a dvd player up to the TV and put a movie in and push play. Once you get to where you have a picture on the screen that has a dark image on the screen and you can see the Red or Green pixels push the pause bottom on the DVD player. Know you what to locate your Y sus board. It is the board that is going to be on the Left side of the TV if you are looking at the TV from the back side with the back cover off! If you are not sure what board is the Y sus then please feel free to give me a call! I will guide you to the Y sus board! 1-503-432-9904 Ask for Dave! Once you have found the Y sus you will need to look closely at the board and you will find some Blue/Yellow adjusters on the board! One will say setup and the other will say setdn next to it. Do not touch any of the other adjusters on the Y sus other then the two that I have mentioned above. If you do you could end up damaging your y sus! So once you have located the two adjuster on the Y sus with setup and setdn next to them you will need to take a felt tip pin and make a mark on the top of both the adjusters so the you'll know where the factory setting is just in case you need to start over! start with the setdn! turn it counter clock wise if there is no improvement then turn it clock wise! if there is no improvement then put it back to the factory setting and try the same adjustment to the setup adjuster. You will need to have some one help you while you do this adjustment to the Y sus because the TV needs to be powered on while making the adjustment and thus you will need to pay attention to where you are sticking the screw driver because you do not want to shock the poop out of your self! So find some one that can watch the screen for you while you make the adjustments to the Y sus! If you feel like your unsure about anything regarding this advice I'm posting please feel free to give me a call I will be more then happy to answer any questions you may have. Ask for Dave @ 1-503-432-9904 / [email protected]


P.S.

If you are reading this post and you have a similar problem with your Plasma TV or any problem for that matter give me a call I will do my best to help you!

Dave,

Main suspects are powersupply (does happen) and the Main board for the set---it does cause this issue a lot.

Most likely on the power board---only boards are sold for these sets--if you open it (correctly) look where cord for power goes and look for any bad caps

One of your circut boards in it is shot,

se cablesdry joints or loooossibly the ribbon cables check for