User Guide

CCS Technical Documentation
NHM-4
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Phone is jammed, 2
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Change UPP
Phone shutdown after
30s
Jammed
Page 2
Measure watchdog
signal CBUSDA from
testpoint J414
Is it OK ?
Yes No
Measure DBUSClk
1MHz signal
from testpoint J406
Is it OK ?
No
No
Read phone info.
Is it OK ?
Yes
info read from
test point J412
Is it OK ?
Change UEM
from testpoint J411
Is it OK ?
Yes
Change UPP
Change UEM
Yes
Change LA4
module
Retest
Yes
No
No
No
Measure
FBUSRX
signal during phone
Measure
FBUSRX
signal during phone
info read from