Re: MBA A1466 (820-00165-A) 2017 has high fan spin and hot GL3219
Replaced lio board + flex cable. Problem resolved.
Thanks Guys!
Gabr
Member
Last Activity: 05-11-2023, 08:19 AM
Joined: 02-07-2021
Location: Zurich
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Re: MBA A1466 (820-00165-A) 2017 has high fan spin and hot GL3219
I will order a new FFC, and check the pull up SMC "2". Thanks for your posts Piernov in this thread so far.Leave a comment:
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Re: MBA A1466 (820-00165-A) 2017 has high fan spin and hot GL3219
I have removed the thermal sensor (u4730) from the lio board and started the laptop. The heatpipe then shows 128 degrees. Which is the same as before.
This gives me the idea that its not the sensor that is the problem but the signal doesnt arrive at wherever it needs to be.
I am unable to figure out where this is pick up on the main board.
Looking at the flex cable I see no indication that it has an issue, maybe it does tho..
Any thoughts/help is highly appreciatedLeave a comment:
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Re: Looking for a LIO board schematic of a A1466 MBA
Thanks!Leave a comment:
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Looking for a LIO board schematic of a A1466 MBA
Hi All,
Anyone has a LIO board schematic of a A1466 Macbook Air from 2012?
I do not know which motherboard number the 2012 version is. Mine is a 2017 mba but I believe there is no LIO board schematic for that year.
TIA!
Grtz Gabr -
Re: MBA A1466 (820-00165-A) 2017 has high fan spin and hot GL3219
Thanks for hint, but when fan spin is high at startup I think usually the CPU is also throttled back. So fan control is not really a solution....Leave a comment:
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Re: MBA A1466 (820-00165-A) 2017 has high fan spin and hot GL3219
That would be a bummer since I replaced the IO board a little while ago.
The PPBUS voltage at 8.3 looks a bit low. I notice however if I plug in the charger it goes up to 8.6v
Unfortunatly I don't have a schematic for the io board....Leave a comment:
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Re: MBA A1466 (820-00165-A) 2017 has high fan spin and hot GL3219
This didn't help....Leave a comment:
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Re: MBA A1466 (820-00165-A) 2017 has high fan spin and hot GL3219
See attached....Leave a comment:
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MBA A1466 (820-00165-A) 2017 has high fan spin and hot GL3219
Hi All,
I have a problem with a Macbook Air from 2017 (820-00165-A), after 10 seconds the fan spin starts to rise and reaches maximum speed relatively quick. I have checked the usual culprits like U5800 and U5620 camera connector. I don't see any water damage anywhere, but this laptop has been attempted to be repaired before. (a screw was missing).
I also tried a reflow of the SMC without success.
Trackpad also looks fine.
My main question at this point is I notice that gl3219 (U4500) gets quite hot relatively quickly after start-up going over 40 degrees... -
Re: New Members - please post your introductions here
Hello All, my name is Gabor.
I've been in computers and electronics repairs since 1987. But only recently started with 'micro soldering' Happy to join this forum and learn..Leave a comment:
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