Sanyo DP42848 LCD TV - Answered Questions & Fixed issues

Sounds like 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; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

tv turned black/white screen...how can I get it back to color? It happened when my granddaughter was playing with the tv remote. thanks

Well this cloud be due to 2 reasons

1. It could be that you are have low reception from your DTH operator or cable operator
2. There could be fault in our TV

You better get it checked by a professional or contact Sanyo NOTE: the first one applies only if all the TV's in your home are acting the same way

Hi, Black spot means the LCD panel is faulty. Its better to go for new tv than rearing this one. www.electro-medical.blogspot.com

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/ Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Sounds like T'Con board fault. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/ Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

I use a brand new microfiber cloth. Mist the cloth with a spray bottle a few times with clean water. And brush the screen lightly with only the microfiber by folding the cloth into a square. If the stain is persistent try a LCD screen cleaning product

This is what happens when the backlighting circuit fails. It can either be the lamp or the inverter board. This is one reason the newer TVs/Monitors are using LED backlighting. They last longer. Typical LCD backlighting can fail in as little as three years if they are left on full time.

Are you sure of the part number? I do not see a 1aa4d10n202oa among the parts for the Sanyo DP42848. I did find the 1aa4b10n2020a (key control) from several sites but there is a 3 digit prefix on the part number at Shop Jimmy . com among others. (Not all sites have this in stock.)

I hope this helps.

Cindy Wells

Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/

You have to connect the TV to any device; which have HDMI output; using an HDMI cable in between, and to select the input of the TV to HDMI, using its remote control's input selector button. The HDMI cable will look like this. http://electronicshelponline.blogspot.com/

Back-light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/

Fault with main board. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/

Main board fault. Contact any service technician or the service center. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Timeslide" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter". http://electronicshelponline.blogspot.com/

If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. http://electronicshelponline.blogspot.com/ One among the post in this site, have details about how to do it. Surf it patiently.

Short circuited component/s at its main board. Contact any service technician. Gopakumar Gopalan Google

There are so many reasons for spots appear to LCD screen. If you wish to get some details, check the site linked here. http://electronicshelponline.blogspot.com/ Pull up older posts. Check the site in 'Mosaic' view. It will make search easy. Screen-shots to defective LCD screens are given, which I cant include it here. Check it, and make sure the fault to your TV. Good Luck.

The TV you specified here can only be used with NTSC system transmission or video data. If you wish to see PAL system signals by this tV, you've to buy PAL to NTSC converter, and should connect it according to connection diagram given along with the converter.

It all depends on the person doing the job they can make there own prices. cost of the board + time + storage until part come+ time it takes to put the part in and test tv. some will put in the part you got if it is the right one but most will not. some place's get the parts cheap and you pay the full cost of what it would be. hope this help. look for a repair place only they are usually the best place to start as they only do repairs and not sales.

This is almost certainly what you need: http://www.coppelltvrepair.com/p/428/sanyo-dp42848-p42848-00-backlight-inverters-replacement-for-dark-screen-no-image-problem