TV has three boards, main board, pwr supply board and T-con board.
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 digital board.
/
SOURCE: Samsung TV goes Black but keeps sound
you will need to check weather the 24vdc supply for the inverter board is good no drop voltage. if no supply check the power supply board. then you should check if their is a inv_on signal at the power inverter board around 3v-4.4vdc . if goes out during power on tried to disconnect the supply going to the inverter board to ensure if their is a shorted parts in the inverter board. if the inverter_on signal also goes out even with out inverter board connected that was mean you have problem in the processor board.
SOURCE: won't switch on
You reports that you've changed the T'Con board. Where is the T'Con board to a Plasma TV? There is no such board to any plasmas. 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 see the latest updates. It will make search easy. There are more than 1350 posts to different brand TVs now. Pull up older posts there or make a search by typing in the brand name of the device in the "Search Box", at the top right of the display window
Contact any service technician. This is not a service work; can be done with ease by a customer. Especially who is not aware in electronics. Gopakumar Gopalan Google
The problem might be with the remote. Have you tried turning on the set with the on/off switch on the side of the tv?
Testimonial: "remote is fine once I get the red standby light to come on the tv works as it should I can turn the tv off and if I try to turn it back on within 4 minutes it will work if I wait longer the red stand by light stays lit but the tv wont turn back on until I unplug and plug it back in many times thank you for taking the time to answer"
SOURCE: Polaroid 3211-TLXB solarized / negative image
Just replace the T-Con board and you dont need any soldering at all. JUst be careful for the flex connector.
Testimonial: "Will do. Thank you, Jorge!"
63 views
Usually answered in minutes!
×