Re: A1502 820-3476-A green light no power on
Ok bluestone, thank you for your time!! Is there any other measurement I could do to be completely sure that the problem is the pch? I mean because of the corrosion and maybe liquid damage.
nahuelaune
New Member
Last Activity: 01-19-2022, 06:23 AM
Joined: 01-11-2022
Location: NEUQUEN
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Re: A1502 820-3476-A green light no power on
I found corrosion in u8005, I took it but the short is still there.Leave a comment:
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Re: A1502 820-3476-A green light no power on
Some extra information, I bought this computer to take some parts but I tried to fix it first. Under the keyboard It has something like water damage, it's from the 3.5mm audio jack, ThunderBolt, etc. so maybe it had a liquid damage, I can't see corrosion because probably (90% sure) someone tried to fix it before.
EDIT: in L7630 the multimeter says 0.0.Last edited by nahuelaune; 01-14-2022, 07:48 AM.Leave a comment:
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Re: A1502 820-3476-A green light no power on
Sorry, I thought the little rectangle in the CPU chip was the GPU. checked L7630, beeps... OL in the multimeter.Leave a comment:
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Re: A1502 820-3476-A green light no power on
I checked all caps around the sound chip and none of them got hot, I injected 3amps and isopropyl alcohol. still get hoy the GPU, as I can feel.Leave a comment:
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Re: A1502 820-3476-A green light no power on
Hi bluestone, I'm checking those capacitors. I put the multimeter in 200 ohms and it shows 0.1 ohms in L7630, is it ok? Thanks for your answer!Leave a comment:
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A1502 820-3476-A green light no power on
Hi! I've got this laptop with this problem. It's got green light and after a few seconds it turns orange, the power supply shows a 0.01 Amp. I checked the power aliases and this is what I've got:
-PPBUS_G3H 12.58V
-PPBUS_S5_HS_COMP 12.58V
-PPBUS_S5_H5_OTHER5V 12.58V
-PPBUS_S5_H5_OTHER3V3 12.58V
-PPDCIN_G3H_ISOL 18.27V
-PPDCIN_G3H 18.27V
-PP3V42_G3H 3.44V
-PPVRTC_G3H 3.35V
-PP5V_S5 5V
-PP5V_S4 0V
-PP5V_S0 0V
-PP3V3_S5 3.35V
-PP3V3_S4 3.35V
-PP3V3_SUS 3.35V
-PP3V3_S3 3.35... -
Re: New Members - please post your introductions here
Hi everyone, I'm from Argentina, fixing MacBooks is kinda my hobby.Leave a comment:
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