Hello, I have laptop Lenovo ideapad D330-10IGM which won't turn on. It was water damaged, but as I know it was clear water. I cleaned the board already.
Now, I noticed, that some component is heating up (see picture) there is a code GAASKJ on it. I don't really know what component is this and what is it's function.
It seems that charging works normally because current draw is about 1A and voltage is 19V.
Could you help me with it?
Thank you
BTW there is a flux on component. No damage.
Martin[ATTACH]313257[/ATTACH]...
martyjelen
Senior Member
Last Activity: 10-02-2024, 08:03 AM
Joined: 03-06-2023
Location: Prague
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Lenovo ideapad D330-10IGM can't power on (water damaged)
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Re: A2141 - 5V/0A - liquid damage
[b]0Ω[/b]Re: A2141 - 5V/0A - liquid damage
[b]0Ω[/b] -
Re: A2141 - 5V/0A - liquid damage
So, it really reads 0,9Ω-1Ω from PPBUS_G3H > ground.Leave a comment:
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Re: A2141 - 5V/0A - liquid damage
I can select ranges. Did you mean that 1ohm reading from PPBUS_G3H > ground?
If I change range to kΩ, it shows 0,001kΩLeave a comment:
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Re: A2141 - 5V/0A - liquid damage
Seems OK, there is more than 1k ohms.Leave a comment:
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Re: A2141 - 5V/0A - liquid damage
There is nothing. 0V.Leave a comment:
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Re: A2141 - 5V/0A - liquid damage
I set limit to 5A. Current draw is still 750mA.Leave a comment:
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Re: A2141 - 5V/0A - liquid damage
Current draw is about 750mA. Heatsink is on, but I check PCB with thermal camera, so I think it should be visible, if something is wrong with CPU or am I wrong?Leave a comment:
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Re: A2141 - 5V/0A - liquid damage
I don't have much to lose with this case. I dialed up 1V to ppbus_g3h. Nothing seems to get hot.Leave a comment:
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Re: A2141 - 5V/0A - liquid damage
So, does it mean CPU is burned?Last edited by martyjelen; 07-11-2023, 06:25 AM.Leave a comment:
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Re: A2141 - 5V/0A - liquid damage
It's [B]3Ω[/B] from F7000/F7001 pin #2 > PPVCC_S0_CPURe: A2141 - 5V/0A - liquid damage
It's [B]3Ω[/B] from F7000/F7001 pin #2 > PPVCC_S0_CPURe: A2141 - 5V/0A - liquid damage
It's [B]3Ω[/B] from F7000/F7001 pin #2 > PPVCC_S0_CPULeave a comment:
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Re: A2141 - 5V/0A - liquid damage
Hello, thanks for reply
On F7000 pin #1 there is 12.25V
On F7000 pin #2 there is 0V (shorted-1Ω to ground)
On F7001 pin #1 there is 12.25V
On F7001 pin #2 there is 0V (shorted-1Ω to ground)Leave a comment:
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A2141 - 5V/0A - liquid damage
Hello,
I have Macbook A2141 with minor liquid damage. I already cleaned PCB and done some measurements.
I noticed that PPBUS_G3H is missing. So I removed F7000 and F7001.
There is 12.25V on PPVBAT_G3H_CHGR_REG
PPBUS_G3H > ground is about 1Ω. So, there is a short.
I didn't find much informations about this model.
Could someone help me, what to check next?
Thanks
Marty -
Re: iPad 7 A2197 - no power
I tried to reheat CPU and now the current draw without battery connected is about 0.280A. Still won't power on.Leave a comment:
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Re: iPad 7 A2197 - no power
So, you think, the CPU is bad? Reballing this is unreal for me, I think. This is bad news. I hope there is some short somewhere, but I didn't find anything yet....Leave a comment:
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Re: Macbook A1708 - 5V/0A -no power- liquid damage.
u3100
pp20v_usbc_xa_vbus - 5v
pp3v3_upc_xa_ldo - 3,3v
pp1v8_upc_xa_ldoa - 1,8v
pp1v8_upc_xa_ldod - 1,8v
pp1v1_upc_xa_ldo_bmc - 1,1v
u3200
pp20v_usbc_xb_vbus - 5v
pp3v3_upc_xb_ldo - 3,3v
pp1v8_upc_xb_ldoa - 1,8v
pp1v8_upc_xb_ldod - 1,8v
pp1v1_upc_xb_ldo_bm - 1,1v...Leave a comment:
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Re: Macbook A1708 - 5V/0A -no power- liquid damage.
Thanks for reply. There is no short on PP3V3_G3H.Leave a comment:
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Macbook A1708 - 5V/0A -no power- liquid damage.
Hello, I have macbook a1708 with some liquid damage on PCB.
I alredy tried to clean PCB with IPA. Stuck at [B]5V/0A[/B]
[B]PPBUS_G3H is missing > 0V[/B]
I removed fuse [B]F7000[/B] to check voltage, but it's still the same > [B]0V[/B].
Diode reading on pad 1 is [B]576[/B]
Diode reading on pad 1 is [B]460[/B]
What should I check now? Thanks
MartinHello, I have macbook a1708 with some liquid damage on PCB.
I alredy tried to clean PCB with IPA. Stuck at [B]5V/0A[/B]
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Re: iPad 7 A2197 - no power
There is also 5V, so connector looks OK i think.Leave a comment:
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Re: iPad 7 A2197 - no power
Here are measurements of charge port connector.
[ATTACH]301966[/ATTACH]...Leave a comment:
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