It is ok if the resistor (R145) of 0.27ohm is shorted. If R145 was interrupted then the power supply would not work anymore, and the LED would not blinking.
Error code 7 indicates backlight problems.
Check LED's and contacts between the led strips.
I expressed myself wrong... I would say that if the LED flashes 7 times then there may be backlight problems.
According to the scheme R145 can not be 56K.
It looks worse, but it can be seen. R145 = 0.27R