Filter
Top Products
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
version 1.0 / 05.11.1999 Page 5 of 37
Phone doesn't switch on (CCONT part)
check if PWRON (3,2V DC)
drops to 0V during pressing
the pwr button on R413.
check 32,768KHz, 700mVpp
on B100
check 32.768KHz squarewave
signal on C149
Check PURX (2,8V DC)
afterpressing pwr on button on
R303
Check VXO (2,8V DC) on
C102
change S416 if it is
mechanical broken
change B100 if frquency or
amplitude of the singnal in not
oK
change N100
change N100
Check Vbb (2,8V DC)
MAD is faulty in all probability.
Swap the phone, because
MAD is not changeable
Check also C147, C148,
C153
change N100
Check SLEEPX (2,8V DC) on
J340
Check Vref (1,5V DC) on
C123
change N100
change N100
check 13 MHz clk frequency
on C301
check 13MHz on G701
check solder of G700 or
change if neccessary
Try to Flash the phone
See section :
can't flash the phone
No
No
No
No
No
No
No
No
No
No No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes