Hisense 49H3E standby light on but will not turn on

[frannyjunk]

I've taken the back cover off and there is only 1 board. I unplugged the LED wire and connected it to a backlight tester, resulting in the backlights turning on and the tester reading 60V. This tells me that the backlights are OK. I then cooled the EEPROM (UF1) with canned air, but the TV still only has a solid standby light and will not turn on. Other than the EEPROM, is there a "common" component that fails on these single board TVs? It looks like many of the budget brands use the single board approach (many using the same board, # TP.MS3393.PB851, but I am sure with different EEPROMs). Could it still be an EEPROM issue?

[naack]

Re: Hisense 49H3E standby light on but will not turn on

i have the same board with the same problem. any progress on this device?
i just started on it now. i will update if i find anything

[lotas]

Re: Hisense 49H3E standby light on but will not turn on

i have the same board with the same problem. any progress on this device?
i just started on it now. i will update if i find anything

У вас есть программатор, чтобы считать данные с SPI Flash?

[dskall]

Re: Hisense 49H3E standby light on but will not turn on

unplug your tv. Use your upgrade plug on board. Apply 12v and see if you get your power light and see if it powers on. You can use a flashlight to see if you have an image on screen.

[R_J]

Re: Hisense 49H3E standby light on but will not turn on

If you are going to freeze the eeprom, the tv must be unplugged at the time. Unplug tv, freeze eeprom, wait a few seconds, then plug in the tv and try turning it on. You may need to try this a few times for it to work.
The eeprom is read when the tv is first plugged in, freezing it after will have no effect.