Flash Faults - Nokia NSB-9 Service Manual

NSB-9
Troubleshooting Instructions

Flash faults

Flash
faults
The phone does
not set FBUSTX
line high after
the startup.
No
The phone does
not set FBUSTX
line low after the
line has been
high.
No
Flash
faults
page 2
Page 56
Measure BSI
Yes
pulse during
Flash
programming.
Is it OK ?
Measure FBUSTX
line during Flash
programming from
testpoint J411. Is
it ~1.8V
Yes
Nokia Corporation
CCS Technical Documentation
No
Yes
No
Yes
Check BSI
line. X100,
C114, C240,
R202, R206
Check R109
if OK,
Change
UEM
Change
UPP
Change
UPP
Issue 1 04/03