Good day. I need to confirm if TPS51120 (U56) is faulty or not. 3.3v present on vreg3 pin no.19 and 5v present on vreg5 pin no.21
But no voltage present on L6 (5v_alw) and L7 (3.3v_alw) No voltage output from U26 U28 U29 and U32.
As what I have understand 5v_alw comes out from U26 and U28 fets. 3.3v_alw comes out from U29 and U32 fets. All 4 Fets acquire power from TPS51120 (U56) of pins no. 14,16,25 and 27 through gate (correct me if I'm wrong guys)
Laptop is totally dead but receives power from adapter. battery no longer working. DC jack is ok too.
Here are some voltages present
3.27v present on power button
3.30v present on pin no.8 of U21
3.06v present on rtc1
This is the schematic I found. Hope you guys guys can help out. Thanks very much!
But no voltage present on L6 (5v_alw) and L7 (3.3v_alw) No voltage output from U26 U28 U29 and U32.
As what I have understand 5v_alw comes out from U26 and U28 fets. 3.3v_alw comes out from U29 and U32 fets. All 4 Fets acquire power from TPS51120 (U56) of pins no. 14,16,25 and 27 through gate (correct me if I'm wrong guys)
Laptop is totally dead but receives power from adapter. battery no longer working. DC jack is ok too.
Here are some voltages present
3.27v present on power button
3.30v present on pin no.8 of U21
3.06v present on rtc1
This is the schematic I found. Hope you guys guys can help out. Thanks very much!
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