Using a flashlight, I can barely make out what is on the screen. The audio works well. Model: Toshiba 50L1350U LED tv Through some other online sources, I think that either the LED driver board or the LED light strips are the problem. I cannot find the LED driver board anywhere on the back, so I was wondering if anyone knows how I can confirm that the LED driver board is built into the power supply board; I just need to know if there is a seperate LED driver board or not. Also, would I be better off replacing the LED strips or just the entire power board for my situation?
Mine had x6 swollen capisitors ,i replaced all 6..got off ebay,,and it works fine now,check them all first
Testimonial: "Would I find these capacitors on the main board, power board or tecon board?"
SOURCE: lg led tv backlight
Fault with its main board. Short circuited component/s at it. 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/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
if you dont have any clue,take it to someone that does or damage your tv
SOURCE: how do i fix a sound, but no picture led tv?
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.
SOURCE: How do I fix my Toshiba LCD TV that no picture or audio?
Fault at its main digital board. Short circuited component/s at it. 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/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here. ..
Testimonial: "Your link have no past posts for this model. I do my own servicing since 1966, and worked with RCA radios and TVs with vacuum tubes, so all I need was a guide to confirm that the main board could be bad. BTW, how can I test the backlights? They have two signals "Dimmer" and "Inverter" which are always at zero volts. Which one will turn the backlight inverter on?"
1,017 views
Usually answered in minutes!
×