Re: MacBook Pro M1 2020 A2338 (NO BACKLIGHT HELP)
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See attached.
Attached Files
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Hello Guys. Yesterday I was repairing a MacBook with no backlight. I noticed the resistor/diode RP802 is bad so I took it off. I also had a faulty motherboard that can't be repaired that had that resistor/diode on it (RP802). So it took the good RP802 off the faulty board. And when I had it on my tweezers it accidentally flew away. And now I don't know what to do. I 100% can't find it because of how small it is. Do you guys know any other diode/resistor that can work as the RP802
I'm a newbie to microsoldering and I'm still learning. All help is really appreciated
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Apple MacBook Pro 13" M1 2020 A2338 820-02020 Schematic & Board View...10-01-2024, 07:14 AM
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Hey all,
I have a Macbook Pro A2338, board number 820-02773 (schematics + board view attached for reference).
When plugged in, meter shows 0A at 20.78V. Makes charger connected sound when plugged in, but the battery does not charge. Battery is detected in macOS, but shows 0%.Strangely, it seems to run off of the battery for several minutes despite being at 0%.
The board had some light corrosion around JE501 fan connector (as shown in photo), but am not sure if there is any relation. Corrosion has been cleaned, but fan runs at 100% when on (laptop speed/performance seems... -
Hi,
I am trying to fix this liquid damaged 2020 Macbook pro and I noticed something weird.
When I push on/around the renesas 501cr0b IC, which appears to be a clock generator/ multiplier, If I apply lot of pressure, the device will reach 19.9 volts and seems to be trying to work.
I have thoroughly reflowed that area and completely removed that chip (there was some liquid stain in that area) but no help. I have just 5v 0a unless I apply the pressure.
Your help is GREATLY appreciated. Thanks! -
Hi,
I bought a waterdamaged macbook pro A2338 , late 2020 EMC 3578, its stuck at 5V 0,06mA.
The 3V8 (U5700) chip is shorted out, atleast the PPBUS_VMAIN_VIN_ISNS Cap is and a bunch of resistors. It also seems that a resistor is missing. Does anyone have a boardview to tell me wich resistor goes where arround the U5700?
And for the macbook to boot it requiers 20V am I right? Wich chip tells the charger that it is a Macbook and not a phone?
Thank you so much!...
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