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LA-M025P VCC OF THE BIOS CHIP IS SHORTED TO GROUND
THE BOARD POWER CYCLES AND THE PROCESSOR GETS HOT. i THOUGHT IT WAS A FIRMWARE ISSUE BUT THEN I DIDN'T SEE ANY VOLTAGES ON THE BIOS CHIP. PIN 8 WHICH IS VCC IS ONLY 0.3 OHMS TO GROUND. I INJECTED VOLTAGE BUT NOTHING SEEMS TO BE GETTING WARM. DOES ANYONE KNOW WHERE VCC OF THE BIOS ORIGINATES ON THIS BOARD? -
because of the liquid damage the EC need to be reattached and the bios flashed. works great now...Leave a comment:
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can someone look at this boardview and tell me why KU1 only has voltage on pin 5? i can't get the EC to power up. The customer had liquid damage and I'm trying to patch it after a thorough cleaning. +3VPCU_KBC_+3.3V is missingLeave a comment:
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gu603zm fans don't spin but all voltages appear present
this machine came to me and it would power up with the charger but couldn't turn off. It would turn right back on after holding the power button. no chipset voltages were present and I think that i saw a little liquid metal and so i cleaned the board in an ultrasonic cleaner but it still did not have chipset voltages afterwards. the chipset voltages came back after reprogramming the EC and bios but it still doesn't post and the fans never spin at all. Could the EC chip actually need replacing? -
how to attach the vertyanov jig v3 to the asus gu603zm
can some tell me if it's possible to connect the veryanov jig to the asus gu603zm. the ec chip is it5125vg-192. i've attached the boardview
Mod edit: Link to boardview https://www.badcaps.net/forum/troubl...24#post3332824 -
i saw a suspect capacitor near the battery terminal and removed it. fixedLeave a comment:
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razer rz09-0423 doesn't power on with the charger but appears to send current to the battery
this machine was liquid damaged and fixed but it's back after six months and now it has an issue where it won't power up with the charger. If it is booted up with a battery then it will be ok but the screen goes completely gray and the coplock stops working when the charger is plugged in. -
is this firmware? should i swap the EC and bios chips from the original board?Leave a comment:
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replaced lenovo yoga 14ahp9 board with 16ahp9 and everything works except touchpad
the original board had liquid damage and i found an almost identical board but it's the 16 inch model and the speaker connector is in the different spot. I moved the speaker connector.
it boots and everything works except the touchpad. The signals and voltage are there and no errors indicated in software
vcc=3.3v
i2c_clk=1.8v
i2c_dat=1.8v
gnd=0v
nc=0v
vbus=1.8v
init=1.8v
close=1.8v, 0v when lid is closed
No activity results to display
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