Press the MENU button on the remote. If there is no menu wording displaying on the screen, then it's the backlight. Shine a torch onto the screen panel and see if you can see a picture (yes, TV has to be on and tuned in). If you see a picture, then it'll either be the backlighting or the backlighting power supply.
SOURCE: 42 " flat screen Sanyo. no picture no sound, power yes!
The main board should be checked. For more details Type in this site name < Electro-help> (DO
NOT copy and paste the site name from here.
Doing so may lead you to wrong place) to search box of your search
engine [not in the address bar of your browser],
and press "Enter".
It is an electronic
equipments service help site. Note the
position of hyphen in between words in site name. The site will appear as it is in
web; subtitled as Service help to electronic home entertainment equipments.
Pull up older posts.
You can locate this site,
either at the bottom part of first search page, or at the top of second. Detailed descriptions are there to help you. Check the associated ads related to electronic spare parts. You might get details about the availability and price.
SOURCE: Please tell Sanyo flat screen TV model #dp42d23
If it is less then 1 year old Sanyo may fix it free . other wise get a quote as it may cost the price of a new one.
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/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
SOURCE: My Sanyo dp42d23 tv has sound but no picture. How do I figure out what part is bad? Thanks
Do the flashlight test to see if your inverter board is ng.
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