Nokia NHM–7 Series Troubleshooting Instructions page 11

PAMS Technical Documentation
Jammed
Page 2
Phone shutdown after
30s
No
Measure DBUSClk
1MHz signal
from testpoint J413
Is it OK ?
Yes
Read phone info.
Is it OK ?
Yes
Change LA5
module
Issue 1 10/2001
Measure watchdog
Yes
signal CBUSDA from
testpoint J414
Is it OK ?
No
Measure FBUSRX
No
signal during phone info read
from testpoint J412
Is it OK ?
Yes
Measure FBUSTX
signal during phone info read
from testpoint J411
Is it OK ?
Yes
Retest
E Nokia Corporation
Troubleshooting Instructions
No
Change UPP
No
Change UEM
No
Change UPP
Change UEM
Page 11
NHM–7