wirelessplanet
Member
water damage 820-00165. U7100 has short on pin 6 CHGR_CELL
has no fan spin or orange light. whats best way to find the short on this guy?
has no fan spin or orange light. whats best way to find the short on this guy?
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820-00165 short
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wirelessplanet
Member
on diode mode its beeping
PPBUS_G3H = 1.57
PP3V42_G3H = .08
PP5V_S5 = 0v
PP3v3_S5 = 0v
PPVRTC_G3H = 0
U6100 Pin 8 = .03
PPBUS_G3H = 1.57
PP3V42_G3H = .08
PP5V_S5 = 0v
PP3v3_S5 = 0v
PPVRTC_G3H = 0
U6100 Pin 8 = .03
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wirelessplanet
Member
D7005- starts at .8 and slowly rises to 1.6 and levels off there. Diode mode beeps on pp3v42_g3h rail. where would you recommend i inject power and check to see what gets hot?
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wirelessplanet
Member
sorry
d7005:
Pin 1: 1.57
Pin 2: .034
Pin 3: 1.46
PP3V42 resistance is: .5 ohms
d7005:
Pin 1: 1.57
Pin 2: .034
Pin 3: 1.46
PP3V42 resistance is: .5 ohms
wirelessplanet
Member
Any place you would recommend to inject power or any cap is good?
wirelessplanet
Member
alright guys i have weird issue with PP3V42 line... when J9500 cable is plugged in which it was while originally testing, the resistance to ground was .5 ohms. While disconnected its 53k. i noticed this becuase i diconnected the magsafe from the board when injecting voltage and pp3v42 wasn't drawing any current. while that cable is connected it draws max current. weird thing is even with freeze test with cable connect nothing is heating up.
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wirelessplanet
Member
tried with two different io cable with board. cable is on right way, and one of them was taken from a working computer... also noticed that the cable doesn't even have to be plugged into the io board. pp3v42 gets that way when cable i just plugged in by itself as soon as you plug in the flat cable.
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wirelessplanet
Member
okay removed the j9500 port and fixed the problem. computer boots up now. do you know anyone who sells them or am i going to be stuck having to buy a bad board from china to steal it from.