CCS Technical Documentation
Troubleshooting - Baseband
RH-34
Issue 1 11/2003 Confidential
©
2003
Nokia Corporation
Page 47
Keypad faults
Power key
Keypad
faults
Keypad
faults,
page 2
Measure voltage at
R306. Is it high?
Is the power key
working?
Check S302, C310,
and R306. If OK,
change UEM
Measure voltage at
R306 when power
key is pressed. Is it
low?
Retest
NO
NO
YES
YES
NO
YES
Change S302