Lenovo ideapad 330-15AST M/B DG425/DG525/DG725 NM-B321 completely dead: no LED, no fan, nothing.
Flashed BIOS, still dead.
Some readings:
+3VL 3.3V
V20B+ 20.1V
+5VLP 5.07V
+5VALW 5.07V
+3VALW 3.35V
+1.8VALW 1.79V
+0.95VALW 0.98V
+0.775VALW 0.77V
PU201 (BQ24780SRUYR):
- pin1 = 19.8V
- pin2 = 19.8V
- pin3 = 19.8V
- pin4 = 25.5V
- pin5 = 3.30V
- pin6 = 2.85V
- pin7 = 0
- pin8 = 0
- pin9 = 0
- pin10 = 0
- pin11 = 3.33V
- pin12 = 3.33V
- pin13 = -
- pin14 = -
- pin15 = 3.30V
- pin16 = 0.77V
- pin17 = 0.82V
- pin18 = 0.85V
- pin19 = 0.82V
- pin20 = 0.82V
- pin21 = 0.77V
- pin22 = GND
- pin23 = 0
- pin24 = 5.98V
- pin25 = 5.62V
- pin26 = 0.82V
- pin27 = 0.82V
- pin28 = 19.8V
What else should I check ?
Flashed BIOS, still dead.
Some readings:
+3VL 3.3V
V20B+ 20.1V
+5VLP 5.07V
+5VALW 5.07V
+3VALW 3.35V
+1.8VALW 1.79V
+0.95VALW 0.98V
+0.775VALW 0.77V
PU201 (BQ24780SRUYR):
- pin1 = 19.8V
- pin2 = 19.8V
- pin3 = 19.8V
- pin4 = 25.5V
- pin5 = 3.30V
- pin6 = 2.85V
- pin7 = 0
- pin8 = 0
- pin9 = 0
- pin10 = 0
- pin11 = 3.33V
- pin12 = 3.33V
- pin13 = -
- pin14 = -
- pin15 = 3.30V
- pin16 = 0.77V
- pin17 = 0.82V
- pin18 = 0.85V
- pin19 = 0.82V
- pin20 = 0.82V
- pin21 = 0.77V
- pin22 = GND
- pin23 = 0
- pin24 = 5.98V
- pin25 = 5.62V
- pin26 = 0.82V
- pin27 = 0.82V
- pin28 = 19.8V
What else should I check ?
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