Hello,
I have a Toshiba 50L711U18 and the backlight is not turning on. Tried using a flashlight and I CAN see an image. My phone also tries to connect to the chromecast on it as well. These two things are telling me that the T-con board and the main board are most likely working properly. I opened up the front of the display to get at the backlights. When testing them I noticed that a few of them are a dark blue, almost purple color. I read that they might be on their way out, could these few bad LEDs stop the rest of the backlight array from turning on?
I left the TV unplugged overnight, when I plugged it in again the backlights did turn on for 10-15 seconds then shut off and flashed a 12 red light code. I also got a 5 flash code once but it hasn't returned, the 12 is consistent. I plan on pulling the display off again and rechecking the LEDs, any other troubleshooting help would be much appreciated. I will post my voltages in an attachment.
I have a Toshiba 50L711U18 and the backlight is not turning on. Tried using a flashlight and I CAN see an image. My phone also tries to connect to the chromecast on it as well. These two things are telling me that the T-con board and the main board are most likely working properly. I opened up the front of the display to get at the backlights. When testing them I noticed that a few of them are a dark blue, almost purple color. I read that they might be on their way out, could these few bad LEDs stop the rest of the backlight array from turning on?
I left the TV unplugged overnight, when I plugged it in again the backlights did turn on for 10-15 seconds then shut off and flashed a 12 red light code. I also got a 5 flash code once but it hasn't returned, the 12 is consistent. I plan on pulling the display off again and rechecking the LEDs, any other troubleshooting help would be much appreciated. I will post my voltages in an attachment.
Attached Files
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