NSB-9
Troubleshooting Instructions
CCS Technical Documentation
Page 58
Nokia Corporation
Issue 1 04/03
Phone is jammed
Phone
is
jammed
Jammed
page2
Measure VIO,
VCORE, FLASH1,
VANA, VR3 voltages.
Are they OK?
Measure 32.6kHz
Sleep CLK from
testpoint J404. Is it
OK?
Measure PURX signal
from testpoint J402.Is it
high (~1.8V)?
Measure 13MHz
RFClk from R420. Is it
OK?
Measure 26MHz
RFClk from C660.
Is it OK?
Measure 32.6kHz
Sleep Clk from
B200. Is it OK?
Check VBATT 1-6
VIO, VCORE,
FLASH1, VANA,
VR3 lines. Are they
OK?
Check
L260-L265
C260-C265
BSI/BTEMP lines and
VBATT lines
Check BSI/BTEMP
lines. If OK and UEM
regulators are not
working. Change
UEM
Check B200, C209,
C210
Check R420, C420. If
OK change N600
Change UEM
Check R661, C661,
R660, C660 and
VR3 line. If OK,
change G660.
Change UEM
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No