Technical Support A - 1708

[Tara Laptops]

Hi,
Does anybody have any idea , how does the power section function. Mainly (u3100 & U3200). If any video , pls share. Thanks

 

[Tara Laptops]

I was able to follow the function of u3100 somewhat. But 2 same ic's u3100 & U3200 , confuse me. Vin i am getting 5v. but on ldo it is fluctuating between between 4.2v & 5.2v. on both U3100 & U3200.

 

[Hosein Asadolahi]

I was able to follow the function of u3100 somewhat. But 2 same ic's u3100 & U3200 , confuse me. Vin i am getting 5v. but on ldo it is fluctuating between between 4.2v & 5.2v. on both U3100 & U3200.

what is motherboard model number ??
what you mins ldo voltage pls tell correct name of voltage .

 

[Tara Laptops]

820-00928-a. I am getting +5v on u3100. LDO voltages (3.3v) fluctuates. Is there any video about how this 4 input ic's function.

 

[Hosein Asadolahi]

820-00928-a. I am getting +5v on u3100. LDO voltages (3.3v) fluctuates. Is there any video about how this 4 input ic's function.

all 4 ic have same problem ? u3100 , u3200 , ub400 , ub300 .
what is the total problem of laptop ?

 

[Tara Laptops]

+5v is present on vbus input of U3100. ( ie: PP20V_USBC_XA_VBUS ) is present. LDO voltage is fluctuating

 

[Hosein Asadolahi]

+5v is present on vbus input of U3100. ( ie: PP20V_USBC_XA_VBUS ) is present. LDO voltage is fluctuating

plz answer my question bro . in all 4 ic (u3100 , u3200 , ub400 , ub300 )have same problem ???? or only u3100 ic have problem ?
and
what is the total problem of laptop ?