Chuck60
Member
Hi I received a board and it had 1/4 fan spin
Replaced c7721 it was Still shorted then replaced u7720 and got the board working
Chime, booting, activity on screen but no backlight. After using dosdude gmux I still had no backlight replaced lp8550 and fuse
now the board is dead again I removed lp8550 and I have the
Same short on L7720 and u7720
I didn’t apply a lot of heat and was in and out quickly. What would give me the same short again? I’ve tested around u7880 and it’s not shorted also GPU isn’t in direct short. P.S. Board was running for most of the day and at J5650 pin 1 PP5v_S0 (fan connector) I have 5v but no fan spin :/ I also replace Q5502, Q5501 because they were missing
Replaced c7721 it was Still shorted then replaced u7720 and got the board working
Chime, booting, activity on screen but no backlight. After using dosdude gmux I still had no backlight replaced lp8550 and fuse
now the board is dead again I removed lp8550 and I have the
Same short on L7720 and u7720
I didn’t apply a lot of heat and was in and out quickly. What would give me the same short again? I’ve tested around u7880 and it’s not shorted also GPU isn’t in direct short. P.S. Board was running for most of the day and at J5650 pin 1 PP5v_S0 (fan connector) I have 5v but no fan spin :/ I also replace Q5502, Q5501 because they were missing
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