I've been testing for several hours at this board, including most tips from Louis video https://www.youtube.com/watch?v=nH-mWAt0CDI
But still no luck, screen is there but no backlight. Also no fan spin, but maybe that is temp regulated? HDMI is OK.
There were some minor stainmarks around the lcd connector, but the white dot is not red.
So far I found this bizar; with only the lcd connected, on the caps in the PPVOUT_S0_LCDBKLT circuit (that goes to pin1 of lcd connector), all these caps measure short to ground on both sides! When I disconnect the lcd cable only 1 side of the caps is to ground. I check at the 2 sets of 7 large caps, like C7760, C7770...
I'm wondering if that is normal behaviour, or is there something wrong with the lcd-(cable)?
When I measure at the lcd connector on the logic board pin1 is MOhm to ground. And pin1 on the cable is only 2.5Ohm.
But still no luck, screen is there but no backlight. Also no fan spin, but maybe that is temp regulated? HDMI is OK.
There were some minor stainmarks around the lcd connector, but the white dot is not red.
So far I found this bizar; with only the lcd connected, on the caps in the PPVOUT_S0_LCDBKLT circuit (that goes to pin1 of lcd connector), all these caps measure short to ground on both sides! When I disconnect the lcd cable only 1 side of the caps is to ground. I check at the 2 sets of 7 large caps, like C7760, C7770...
I'm wondering if that is normal behaviour, or is there something wrong with the lcd-(cable)?
When I measure at the lcd connector on the logic board pin1 is MOhm to ground. And pin1 on the cable is only 2.5Ohm.
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