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Search results
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MBP a1708 Retina screen flickering / flashing & lines / residuals / artifacts
820-00875 Hey, I am trying to determine the source of this issue. Symptoms: A few vertical colored lines on the left side of the screen totalling less than 1mm in width Sometimes horizontal lines appear and disappear near the top of the screen Screen brightness level fluctuates...- da_muffinman
- Thread
- Replies: 1
- Forum: Macbook Logic Board Repair Questions
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820-2850-A no 1 volt rails
Sorry I am still learning... So this mb gets green light on charger but no boot / no fan spin. G3H present PP3V42_G3H present PP3V3_S5 present PP5V_S5 present PP1V05_S5 missing I see that it is linked to the cpu but what creates PP1V05_S5? It looks like this one has not been opened before...- da_muffinman
- Thread
- Replies: 11
- Forum: Macbook Logic Board Repair Questions
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Greet light IS present on charger. *No boot. A1278 820-3115-B
Hi! Green light IS present on charger. No boot. A1278 820-3115-B No 3 volt rails present PPDCIN_G3H is present at r7010 CHGR_ACIN not present CHGR_ACIN has resistance of only 2.5Ω to ground so it’s shorted right? Replace U7000? Thank you!!- da_muffinman
- Thread
- Replies: 1
- Forum: Macbook Logic Board Repair Questions
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2012 MB Air 820-3208-A voltage fluctuations
This one is stuck in the perpetual boot loop (fan spins a few seconds, shuts off, rinse & repeat). Charger light comes on / no chime / no damage I have discovered yet. I'm sorry I am a noobsicle :rolleyes: pls see attached- da_muffinman
- Thread
- Replies: 29
- Forum: Macbook Logic Board Repair Questions