Sharp PC-AX40 Service Manual page 11

9. Battery charge problem
Battery charge problem
Battery level > 95%
N
Change battery unit
System can charge?
N
BATT1 > 12V?
Y
VMAIN 19V?
Y
D/BAT_T1 < 3.3V?
Y
D/BAT_T1 > 0.77V?
Y
CHARGE_A = high?
N
Check RP26,U16
Y
OK
Y
Check Battery unit
N
Check
PJ1,PF503,PL504
N
Check
PL512,PF1,PD1,PL501
N
Check PR4,PR5,R77
N
Check PC8,Temperature
Y
Check
PD505,PR507,PQ504,
PQ505,PF504,PQ507,
PQ2,PU505
9/30
10. Sheet Battery charge problem
Sheet Battery charge problem
Battery level > 95%
N
Change battery unit
System can charge?
N
BATT2 > 12V?
Y
VMAIN 19V?
Y
D/BAT_T2 < 3.3V?
Y
D/BAT_T2 > 0.77V?
Y
CHARGE_B = high?
N
Check U16
Y
OK
Y
Check Battery unit
N
Check
PJ501,PF502,PL503
N
Check
PL512,PF1,PD1,PL501
N
Check PR14,PR16,R76
N
Check PC30,Temperature
Y
Check
PD505,PR507,PQ504,
PQ505,PF504,PQ507,
PQ2,PU506
10/30