Hey all,
Just got a no name motherboard for a repair belonging to a Turkish laptop manufacturer called Casper.
Well as you might guess no schematics available at all.
Motherboard is: MT55INP1.V.01
So the 19v comes in ok, 3v and 5v standby is ok, power button has 5v. I draws 0.004 amps from the bench psu, when I press the power button it jumps to 0.040, led comes on then in a blink of an eye it just shuts down 0 amps, no fan spin, nothing. I try again nothing seems to come on ONLY after I remove the DC cable and put it back again, then it's the same story. I checked all the mosfets btw and they seem to work fine.
IT8528E i/o has 3.3v in pins 64, 65, 66 but nothing on 67 which is supposedly for system all pwr good.
I suspect it might be the chipset or the cpu. Computer just died on its own as the costumer tells us.
Just got a no name motherboard for a repair belonging to a Turkish laptop manufacturer called Casper.
Well as you might guess no schematics available at all.
Motherboard is: MT55INP1.V.01
So the 19v comes in ok, 3v and 5v standby is ok, power button has 5v. I draws 0.004 amps from the bench psu, when I press the power button it jumps to 0.040, led comes on then in a blink of an eye it just shuts down 0 amps, no fan spin, nothing. I try again nothing seems to come on ONLY after I remove the DC cable and put it back again, then it's the same story. I checked all the mosfets btw and they seem to work fine.
IT8528E i/o has 3.3v in pins 64, 65, 66 but nothing on 67 which is supposedly for system all pwr good.
I suspect it might be the chipset or the cpu. Computer just died on its own as the costumer tells us.
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