User Guide

PAMS
Technical Documentation
NSE–8/9
Troubleshooting
Page 24
Issue 1 07/99
Display information:
Not charging
Voltage at C155 is about 0.5V,
power on, BTEMP value 47k
Check R125, C127,
C155 and N100
Yes
No
Yes
Check charg_ctrl
32Hz (fast charger) or
1Hz (slow charger) at
R142
Check N100 and R142
andR117
Is voltage the
same on both side on
switcher? C110 (3.2–4.1V)
and at V101 (2.0–3.0V)
voltage over R137
when charger is connected
ACP7~70mV
ACP9~190mV
Check N101, R104, R137
V114 and C122
Returning theCharger
Calibration with Wintesla
No
Yes
Yes
No
Yes
No
Go to Switcher on fig4.2
Figure 4–19