Hi guys. I'm at a point where i actually logged in to ask for some guidance. This is one of my first repairs but i've gone through so much material during the last 3 months that my mind is just blowing up.
I'm working on a 820-00165-a
The macbook air had water damage - cleaned it and it booted everything seemed fine except for the fact that it didnt see the SSD. It had 3.3v on the rails and i checked the SSD in a external drive thingy on a different mac.
I cleaned it manually - i dont have an ultrasonic sadly but the water damage wasn't severe - only a couple spots near the ssd
during my blind search to find whats going on the board i must have shorted something because the board currently won't boot. When i connect the DC power supply at 14.7V it sits on 0.02A Amber light. No green, no fan spin.
I'm measuring all the things that go to the onewire circuit on this board and on another (scrap but the onewire works with a fan spin) and can't find any irregularities. I'd gladly replace something but I simply don't know what to try
since i don't know where to go with this i measured everything i could
DC PS SET AT 14.7V
Taking 0.02A
PPBUS_G3H 8.5V
PPBUS_S5_HS_COMPUTING_ISNS 8.5V
PPDCIN_G3H_ISOL 18.5V
PPDCIN_G3H 14.7V (18.5V)
PP3V42_G3H 3.38V
PPVRTC_G3H 3.28V (3V)
PP5V_S5 4.97V
PP5V_S4R3 0V - seems to be shorted
PP5V_S0 0V - no short
PP3V3_S5 - 3.28V
PP3V3_S4 - 0.02V - same amount the PS is drawing. micro micro beep when checkin continuity
PP3V3_S3 0V
PP3V3_S0 0V
PP3V3_S4SW_SNS 0V
PP1V8_S3 0V
PP1V2_S3 0V
PP1V05_SUS 1.04V
PP1V5_S0 0V
PP0V6_S0_DDRVTT 0V
PP1V05_S0 0V
PP1V05_S0SW_PCH_HSIO 0V
i'd be satisfied with just getting the macbook up to the green light/fan spin part. I think the SSD working will just be too much.
I'd appreciate any HELP/GUIDANCE. I'm gonna be logged on all night trying to self-crack this
I'm working on a 820-00165-a
The macbook air had water damage - cleaned it and it booted everything seemed fine except for the fact that it didnt see the SSD. It had 3.3v on the rails and i checked the SSD in a external drive thingy on a different mac.
I cleaned it manually - i dont have an ultrasonic sadly but the water damage wasn't severe - only a couple spots near the ssd
during my blind search to find whats going on the board i must have shorted something because the board currently won't boot. When i connect the DC power supply at 14.7V it sits on 0.02A Amber light. No green, no fan spin.
I'm measuring all the things that go to the onewire circuit on this board and on another (scrap but the onewire works with a fan spin) and can't find any irregularities. I'd gladly replace something but I simply don't know what to try
since i don't know where to go with this i measured everything i could
DC PS SET AT 14.7V
Taking 0.02A
PPBUS_G3H 8.5V
PPBUS_S5_HS_COMPUTING_ISNS 8.5V
PPDCIN_G3H_ISOL 18.5V
PPDCIN_G3H 14.7V (18.5V)
PP3V42_G3H 3.38V
PPVRTC_G3H 3.28V (3V)
PP5V_S5 4.97V
PP5V_S4R3 0V - seems to be shorted
PP5V_S0 0V - no short
PP3V3_S5 - 3.28V
PP3V3_S4 - 0.02V - same amount the PS is drawing. micro micro beep when checkin continuity
PP3V3_S3 0V
PP3V3_S0 0V
PP3V3_S4SW_SNS 0V
PP1V8_S3 0V
PP1V2_S3 0V
PP1V05_SUS 1.04V
PP1V5_S0 0V
PP0V6_S0_DDRVTT 0V
PP1V05_S0 0V
PP1V05_S0SW_PCH_HSIO 0V
i'd be satisfied with just getting the macbook up to the green light/fan spin part. I think the SSD working will just be too much.
I'd appreciate any HELP/GUIDANCE. I'm gonna be logged on all night trying to self-crack this
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