Re: sharp 50-lb371u no backlights
Replace bad leds and retry
Replace bad leds and retry
-
Hello all. Working on a sharp LC-50LB370U. A few days ago, I turned the tv on and immediately left the room, came back in and tv was black. Turned it off then on and all good (didnt think much of it at the time) for about a week. Did the same thing again but stayed black this time. When turning on, the word "sharp" is dimmer than normal I think then tv goes black. I do have sound and do have a display with the flashlight test. I trided unplugging and also holding in the power button for 30 sec, no change. I opened the back up and the backlights do turn on to some extent for a moment... -
Television don't display video but the backlights/Audio works.
I disconnected one side of the T-Conn cable and got distorted video on one side of the Panel. I taped off a few pins on the T-Conn cable both side of the panel displays but distorted video. I also replaced the T-con board results same blank screen. Any suggestions?... -
Hello, I have a Sharp LC- 58Q620U 58" LED 4K TV.
When you initially plug the TV into the 120V outlet, I get the initial standby red LED light. After you press the power button the red LED goes out and no other lights come. There is no backlight flash, nor image on screen. No audio with HDMI source plugged in, nor does my laptop detect another monitor plugged in. T-con board makes a clicking sound with or without LVDS cables hookup or off.
My first thought was that it had a faulty PSU. Reading voltages, I was getting a swinging voltages from the DC output from the... -
Hello, I have a problem with my Samsung UE48H6410SSXZG with the main board BN41-02156A and the power board BN44-00709A. Everything seemed like this, the TV could no longer be switched on, the standby LED always flashed 5x2 times. Backlight was off and no sound from TV. Also made the flashlight test and there was no picture.
I made the following tests:
1. Disconnected the main board from Power Board = backlight works.
2. Connected the main board and disconnected the T-Con = backlights does not work.
So I ordered a main board from Ebay also BN41-02156A but from... -
'Morning,
I get sound and picture when powering on the TV and its stays that EXCEPT that the left half of the screen will dim every few seconds then return to normal while the right side of the screen performs as designed.
Did the soft and hard reset options pulling the plug, using the reet option in the vizio menu to no avail.
I checked the mainboard - found some popped capacitors so replaced it - but that did not change the situation.
I checked the t-con board. It is getting good power. Then I removed one ribbon cable to see if I could isolate...
Comment