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macbook 17' 820-2914 board , no back light
known good screen and LVDS CABLE , TESTED
new lvds connector on board,
C9880 = 39v
still no back light
feedback connection good
any idea why no back light
Q9701 pin 1234 0.4v !
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here im posting some original water damage pic . b4 cleaning ....... pls chk the pic and let , know, i took out and thunderbolt chip and those is, those are good, also i put it back,
fan spinning high speed no, boot... which region i should chk first...spi chnged still the same...
820-3115-b board, had slight water damage, all cleaned good now , now its turns on ...does not boot, white led keep on ,
cpu vcore good,
any idea , where to look
pls chk picture
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update !!! i change the magsafe now turn on!!!!!!!!! but no post, the white led is on ... does not boot or chime, is this because of i took out u3890..... or something else??? pls chk attach pic
3115-b board, ppbug3h is good 12.59v, PP3V42_G3H_REG= 3.4v
PP3V3_S5_REG=3.3v
no green light
SYS_ONEWIRE=3.4v on u6900
pls chk attach pic where was the water damage
pic 1 u5400 fixed...