Nokia NHL-10 - Page 49

NHL-10
Baseband Troubleshooting CCS Technical Documentation
ISSUE 2 01/2004 COMPANY CONFIDENTIAL 49
Copyright © 2003 Nokia. All Rights Reserved.
8 Press Read in the ADC reading field to confirm the communication between the
phone and phoenix is no problem.
9 Press Close Charge Switch.
10 Adjust the current limit on the power supply until the ammeter reads 500mA +/-
5mA.
11 Type the measured current (read this from the ammeter) into the Measured Cur-
rent box. The value is negative and presented in Amps, e.g. if you measure
502mA, then type –0.502. The reading should be to the nearest mA.
12 The calibration value appears in the box Zocus_New_Cal. To write this to the
phone, press Write.
13 Press Open Charge Switch to stop current flowing.
14 Go to the EM calibration window, and then check if the battery current (IBAT
Gain) is stored correctly.
Caution: Do not leave the module jig with being “Close Charger Switch” condition for a long time, i.e.
5 min or longer. The transistor used for this calibration on the module jig will get hot due to the current
of 500mA.