Nokia 6150 - Advanced Call Features

CONFIDENTIAL
Service & Analysis Center Europe
Training Team
version 1.0 / 19.10.1999 Page 19 of 41
Clock time or user settings problems
Clock time / Ringing tone is to fast or to slowly
32,786KHz Sleep oscillator
• Check that the sleepclk 32.768KHz square wave frequency on pin 48 CCONT isn't higher or lower
• Check the crystal B100, R154, C101, C102, N100
Clock time problems / wrong ringingtone speed
check 32,768KHz
clock frequency on
pin 48 of N100,
CCONT
Check soldering or
change B100, R154,
C101, C102, N100
Clock freeze after switching on the phone
Check the
CCONTINT
impulse on pin
52 of N100,
CCONT
Check the
CCONTINT
impulse on pin
123 of D200,
MAD
resolder MAD
or change if
solderings are
Ok
resolder
CCONT or
change if
solderings are
Ok
Yes
Ok
No
No