Acer Aspire one No Power

[ry x hunter]

Hi guys.. I recived this laptop yesterday and wont power up.. i explain it directly, the P-channel fet receive 19 volts from charger but it wont trigger because tha gate is high.. the gate is also 19 volts.. i check the fet and it is good.. here is the schematic and plss help me to identify the cause why gate get 19 volts.. thanks

[shijeesh]

Re: Acer Aspire one No Power

Check PQ9B D Voltage and G voltage. If PQ9B D voltage 0v then the PQ4 gate voltage will be 8.143v.

[ry x hunter]

Re: Acer Aspire one No Power

Check PQ9B D Voltage and G voltage. If PQ9B D voltage 0v then the PQ4 gate voltage will be 8.143v.

what will i do sir? if that is happen?

[shijeesh]

Re: Acer Aspire one No Power

Check ACPRN, PACIN and PQ13 1 foot (Collector) voltage.
ACPRN must be 0v and PACIN=high(6251VDD).

[dellxps15]

Re: Acer Aspire one No Power

are you sure pr23 pr30 are ok? i had similar problem and was the 150k resistor fault.

[fddizon]

Re: Acer Aspire one No Power

check PR22, PQ6 and PQ8