I have a Hitachi TV here that displays the Hitachi logo on the display when powered on (crystal clear. no problems) for about 8 seconds then the display goes black.
You can hear the clicking from menu interaction after it goes black but can't see anything. The backlights stay on the whole time. Since the replacement boards are fairly cheap I went ahead and ordered refurb power supply and mainboards. I installed them but the problem persists.
I figured a problem with the LED driver board was unlikely since the LED backlights aren't shutting down. And the T-Con I would think was ok since the Hitachi splash screen/logo comes on consistently for the same amount of time when the TV is started and there is no corruption to the image.
These same board revisions are used in a number of TCL sets including but not limited to 55UP120, 50UP130, 55US57.
I'm wondering if it's an common issue on the mainboard and I just happened to get a refurbished board with the same problem but I figured I would shoot it past more seasoned pros here to see if this is something any of you have run into and sorted out.
Appreciate your time reading
You can hear the clicking from menu interaction after it goes black but can't see anything. The backlights stay on the whole time. Since the replacement boards are fairly cheap I went ahead and ordered refurb power supply and mainboards. I installed them but the problem persists.
I figured a problem with the LED driver board was unlikely since the LED backlights aren't shutting down. And the T-Con I would think was ok since the Hitachi splash screen/logo comes on consistently for the same amount of time when the TV is started and there is no corruption to the image.
These same board revisions are used in a number of TCL sets including but not limited to 55UP120, 50UP130, 55US57.
I'm wondering if it's an common issue on the mainboard and I just happened to get a refurbished board with the same problem but I figured I would shoot it past more seasoned pros here to see if this is something any of you have run into and sorted out.
Appreciate your time reading