Sharp Aquos LC-70LE650U

[jimmymacbarker]

This TV has the fault code at power up - 2 slow followed by 5 flashes. Replacing the power supply and/or the T-Con card with new cards has no effect to the fault. However, lifting both the SC5301 and SC5302 ribbon cables from the T-Con card allows the TV to power up, backlight the panel and exhibit no fault code. Power remains on and the panel remains in a backlight mode. Connecting either cable alone does not effect the fault.
It appears that the panel has failed. I need confirmation on this troubleshooting and would welcome some advice on further troubleshooting.

 

[rgd1101]

MERGED QUESTION
Question from jimmymacbarker : "Sharp Aquos LC-46LE700UN Fault Blink Codes"

Upon power-up (plugging power cord in wall receptacle), the TV screen remains blank and the POWER and OPC lights started blinking immediately. The pattern is both lights ON once, then OFF, then POWER ON once, then OFF. The cycle then repeats itself. All lights are green. During this fault mode, there is no remote control of the set or control directly on the set. Only option is to unplug power. Where can I find a reference or narrative on this fault so I can troubleshoot? Your assistance is greatly appreciated.