User Guide

6255/6255i6256/6256i (RM-19)

Baseband Description and Troubleshooting Nokia Customer Care

Charging

Charging through Pop-port is accomplished in the same manner as through the charger

connector. Pin 1 of the Pop-port is physically connected to the charger connector. When

the mobile terminal is connected to a desktop charger (e.g., DCV-15), it charges in the

same manner as it does with the charger connector.

Figure 23 shows the actual charging sequence. The channels on the diagram are:

• CH1 = Charging current across the .22 Ohm (R200) resistor on UEMEK

• CH2 = Charger voltage measure at V100

• CH3 = Battery voltage measure at R200

•CH4 = PURX

Figure 23: Charging sequence

In Channel 4, PURX is released, which this indicates when the mobile terminal operation

goes from RESET mode to POWER_ON mode.