hye all masta and guru
i got 1 laptop compaq cq43 . please refer attachment where i attach schematic for this motherboard.
1st i found mosfet on Q0902 is burn mark.the mosfet model is AO4406A then im replace with wrong mosfet AO4407 .after i on the laptop Q0901 was burned then i know i make the mistake when change wrong mosfet. p channel cant change with N channel . but im learn now that mistake
im now already change new A04406A but still no power.
im measure
Q0902 no volt on all pin
Q0901 19v on pin 5,6,7,8
the IC pwr charge TPS51123 im measure 13,14,15,16 no volt
the TPS51123 for 3v 5v i measure pin 22 got 3v pin 4 3v pin8 3v pin 9 5v pin 13 3.91v pin 16 19v pin 17 5v pin 22 5v
please help me. thanks for advance
i got 1 laptop compaq cq43 . please refer attachment where i attach schematic for this motherboard.
1st i found mosfet on Q0902 is burn mark.the mosfet model is AO4406A then im replace with wrong mosfet AO4407 .after i on the laptop Q0901 was burned then i know i make the mistake when change wrong mosfet. p channel cant change with N channel . but im learn now that mistake
im now already change new A04406A but still no power.
im measure
Q0902 no volt on all pin
Q0901 19v on pin 5,6,7,8
the IC pwr charge TPS51123 im measure 13,14,15,16 no volt
the TPS51123 for 3v 5v i measure pin 22 got 3v pin 4 3v pin8 3v pin 9 5v pin 13 3.91v pin 16 19v pin 17 5v pin 22 5v
please help me. thanks for advance
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