#1 Toshiba C855 not start and not charge battery (only work with ac adapter)
przez robgerr • 25 stycznia 2019, 21:36
good evening friends of the forum
This notebook does not start with a battery inserted and does not charge it.
Trying another battery, same defect so I think it's a failure in the charging circuit.
When the battery is connected, the orange LED flashes. and if I give power on the machine does not start, unplugging the battery goes on without problems. I do not have the schematic mainboard (PLF / PLR / CSF DSC MB REV 2.1)
Measured BQ25A power charge I find these values:
pin 1 19,35v
pin 2 19,35v
pin 3 19,11v
pin 4 24,30v
pin 5 3,0v
pin 6 2,61v
pin 7 0v
pin 8 3,28v
pin 9 3,28v
pin 10 3,13v
pin 11 11,90v
pin 12 11,90v
pin 13 11,90v
pin 14 0v
pin 15 0v
pin 16 6v
pin 17 11,64v
pin 18 11,90v
pin 19 11,90v
pin 20 19,05 v
This notebook does not start with a battery inserted and does not charge it.
Trying another battery, same defect so I think it's a failure in the charging circuit.
When the battery is connected, the orange LED flashes. and if I give power on the machine does not start, unplugging the battery goes on without problems. I do not have the schematic mainboard (PLF / PLR / CSF DSC MB REV 2.1)
Measured BQ25A power charge I find these values:
pin 1 19,35v
pin 2 19,35v
pin 3 19,11v
pin 4 24,30v
pin 5 3,0v
pin 6 2,61v
pin 7 0v
pin 8 3,28v
pin 9 3,28v
pin 10 3,13v
pin 11 11,90v
pin 12 11,90v
pin 13 11,90v
pin 14 0v
pin 15 0v
pin 16 6v
pin 17 11,64v
pin 18 11,90v
pin 19 11,90v
pin 20 19,05 v