friends
today i have repaired dell n5110 no disply issue....
first i attached pwr unit its take 0.560 amp and off ....this is continue...
so i check all coil impendence its normal and then switched on laptop and check but still same issue
now replace tested cpu and ram but still same then i wish to go for check all regulator section coil volts ,.
like 5V_PWR=5v,, 3D3V_PWR=3.3v,,, 1D05V_PWR=1.05v,,, 1D5V_PWR=1.5v,,,, 1D8V_RUN_PWR=1.80v,,,, 0D85V_S0=0.85v,,,
but VCC_CORE=0v ,,,, VCC_GFXCORE=0v lets here no cpu supply generated....
for this voltages check isl95831 ic
check all input voltages ok but not output at all here is rating of working and not working ic comperition......
so above rating i considering there is isl95831 ic faulty
today i have repaired dell n5110 no disply issue....
first i attached pwr unit its take 0.560 amp and off ....this is continue...
so i check all coil impendence its normal and then switched on laptop and check but still same issue
now replace tested cpu and ram but still same then i wish to go for check all regulator section coil volts ,.
like 5V_PWR=5v,, 3D3V_PWR=3.3v,,, 1D05V_PWR=1.05v,,, 1D5V_PWR=1.5v,,,, 1D8V_RUN_PWR=1.80v,,,, 0D85V_S0=0.85v,,,
but VCC_CORE=0v ,,,, VCC_GFXCORE=0v lets here no cpu supply generated....
for this voltages check isl95831 ic
check all input voltages ok but not output at all here is rating of working and not working ic comperition......
so above rating i considering there is isl95831 ic faulty
tx sir
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