Hi
Im trying to repair a Lenovo Legion Y530 that turns on but has no display or external display.
ive already tried resetting it and removing ram one at a time to see is there is any change but it did not work.
the laptop just turns on and fans both spin but no screen, nothing.
the schematic and boardview ill try to attach below...any help would be greatly appreciated since im new to board repair but im trying to learn.
With no power , no charger , no battery no Cmos coin ,
With multimetre at diode mode , red probe at GND and with black probe taking all the measurements at All the grey coils i get this
PL601: .440
PL602: .310
PL201: .548
PL1401: .228
PL3102: .004
PL2101: .117
PL1801: .102
PL5802: .001
PL5801: .001
PL5803: .001
PL901: .058
PL3201: .016
PL3004: .002
PL3001: .002
PL3002: .002
PL3003: .002
as for the mosfets, i only have 7 measurements so far but i will try to get the rest of them tomorrow.
the 7 readings i have so far are
PQ601: D-408 S-310 G-738
PQ602: D-310 S-0 G-425
PQ603: D-407 S-439 G-871
PQ604: D-440 S-0 G-425
PQ201: D-1.665 S-1.625 G-1.635
PQ202: D-408 S-1.625 G-1.635
PQ206: D-549 S-0 G-346
Im trying to repair a Lenovo Legion Y530 that turns on but has no display or external display.
ive already tried resetting it and removing ram one at a time to see is there is any change but it did not work.
the laptop just turns on and fans both spin but no screen, nothing.
the schematic and boardview ill try to attach below...any help would be greatly appreciated since im new to board repair but im trying to learn.
With no power , no charger , no battery no Cmos coin ,
With multimetre at diode mode , red probe at GND and with black probe taking all the measurements at All the grey coils i get this
PL601: .440
PL602: .310
PL201: .548
PL1401: .228
PL3102: .004
PL2101: .117
PL1801: .102
PL5802: .001
PL5801: .001
PL5803: .001
PL901: .058
PL3201: .016
PL3004: .002
PL3001: .002
PL3002: .002
PL3003: .002
as for the mosfets, i only have 7 measurements so far but i will try to get the rest of them tomorrow.
the 7 readings i have so far are
PQ601: D-408 S-310 G-738
PQ602: D-310 S-0 G-425
PQ603: D-407 S-439 G-871
PQ604: D-440 S-0 G-425
PQ201: D-1.665 S-1.625 G-1.635
PQ202: D-408 S-1.625 G-1.635
PQ206: D-549 S-0 G-346
Comment