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.
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./
The television will need to be taken apart to do any real diagnosis. If you aren't familiar with electronics and/or soldering you should leave this to a professional. There are parts inside that TV that store an electrical charge and cause damage or death. If you are comfortable taking he TV apart you can look at the circuit boards and look for things like failed or leaking capacitors, or overheated power transistors. If you see a bad component like that you can either solder in a new part or check Google with the part number for that complete board and replace it as a unit.
Most probably the fuse 'T4A H / 250 V AC' on the power supply board or capacitor/s thereon would have gone off. Either you have to change those dead parts or replace the power supply board with a new one costing around $49.41
Your Power Supply Board shown given below:
If the picture is there but dark that means that your backlight has failed. Based on the age, this set likely uses a Cold Cathode for the backlight. The driver boards for these do fail over time and unless the tubes themselves have failed, likley a new backlight driver board will fix the problem. Check Ebay as a good source for parts.
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.
Can be the TCON board or the Main board. Can confirm by replacing the TCON board.
If you wish to get some details; visit the site linked here. Pull up older posts. http://electro-medical.blogspot.com/
53 views
Usually answered in minutes!
×