G.Beard
New member
Machine was covered in coke.... The whole bottle I think.
Damaged areas were:
U6100, U1900, Q8150, U1950, U5000, U7100, U8300, J8300, U7090, J9500, Q7155, Q7706
Cleaned up all areas, and replaced all caps and resistors and ICs with corroded pins / pads that I could see, except the SMC (so far) as the outer balls look OK.
Voltages tested are:
PPBUS_G3H = 8.6
PP5V_S5 = 5V
PP3V3_S5 = 3V3
PP3V42 = 3V42
PP3V3RTC_G3H = 3V3
After randomly stabbing the wrong pin (pin 3) on U1900 (trying to test for PP3V3_S5 on pin 2), found that SYSCLK is blipping on / off.
Still very much in confusion and trying to figure out the order in which power rails turn on.
Where I should be looking first with this?
Damaged areas were:
U6100, U1900, Q8150, U1950, U5000, U7100, U8300, J8300, U7090, J9500, Q7155, Q7706
Cleaned up all areas, and replaced all caps and resistors and ICs with corroded pins / pads that I could see, except the SMC (so far) as the outer balls look OK.
Voltages tested are:
PPBUS_G3H = 8.6
PP5V_S5 = 5V
PP3V3_S5 = 3V3
PP3V42 = 3V42
PP3V3RTC_G3H = 3V3
After randomly stabbing the wrong pin (pin 3) on U1900 (trying to test for PP3V3_S5 on pin 2), found that SYSCLK is blipping on / off.
Still very much in confusion and trying to figure out the order in which power rails turn on.
Where I should be looking first with this?