20 Most Recent Sharp Aquos LC-42D62U 42 in. LCD HDTV - Page 7 Questions & Answers

my maxent plasma tv has the same problem but it has green and red lines. I found out that hitting the tv from the back works. It used to last a long time but now i have to get up now and then to slap the tv on back with my hands! anyone with a long term solution?

You should be watching your dvd's on an input and not on tv analog 3. Every time the tv "senses" a signal change in the audio that screen will pop up. Connect the DVD player to the tv by using either the red, white and yellow (composite) connections or using the green, blue, red, white and red (component). Once you are on an actual input that box will stop popping up.

Check whether its back-light is working. If not, check and replace the back-light inverter board. If you wish to get some details, check the site linked here. http://electronicshelponline.blogspot.com/ Pull up older posts.

Hello,

Your power supply board is dead, u know basic electronics’ and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
Hope this help

Check its back light inverter baord. Check the site linked here for more details. It has screen-shots to defective flat screen TVs. Pull up older posts. http://electronicshelponline.blogspot.com/

These blinks [flahses] are fault indication, and known as blinking codes. From the number of blinks occur at one time switch ON; you can get an idea about the faulty circuit stage inside the TV. This will make repair easy. For more information, check the link http://electronicshelponline.blogspot.com/

Check its back-light inverter board, and the voltage comes to it from the main power regulator board. To get some details, http://electronicshelponline.blogspot.com/ Pull up older posts.

Which PCB do you want to change? What is the trouble you faces with this TV now.? For more information go to http://electronicshelponline.blogspot.com/

Check for any loose connection to conneting wire.

To make it a hard reset, you have to unplug the TV from AC mains wall socket, and re-plug it after 15 minutes or so. If you wish to make it a system reset, you have to enter its service mode; and is really a semi-skilled procedure. If you wish to get some details, check this link. http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic / Timeslide / Flipcard, can be selected by the drop-down list, at the top left of the display window, will make surf easy. You can also do a search, by type in the brand name / model number / IC used, in the search box at the top right of the display window.

you should get a new one

Check the connecting wire first for any internal conductor break. Try with an other set AV cable. google.com/+GopakumarGopalan