CCS Technical Documentation
Baseband Troubleshooting Instructions
Issue 1 10/02
¤
Nokia Corporation
Page 55
No
Retest
Yes
Are UI-module keys
working?
Change UI-module.
Are the keys working
now?
Keypad
faults 2
Measure
ROW0, ROW1,
ROW2, ROW3, and
ROW4 lines from
X303. Are they
~ 1.8 V?
Check ROW0-4
lines and X303.
If OK -> change
Z301. If still fail
-> change UPP.
No
Measure
SLEEPX signal
from J403 when key
is pressed. Is it
~ 1.8 V?
Yes
Check ROW0-4
lines and X303.
If OK -> change
Z301. If still fail
-> change UPP.
No
When any
UI-module key is
pressed, are the LEDs
turned on?
Yes
Display
faults
Yes
Check ROW0-4
lines and X303.
If OK -> change
Z301. If still fail
-> change UPP.
No
Keypad
faults 3
Yes
Check X303
No
Содержание NSM-9DX
Страница 1: ...NSM 9DX Series Transceivers Issue 1 10 02 Nokia Corporation Troubleshooting Instructions ...
Страница 4: ...CCS Technical Documentation Page 2 Nokia Corporation Issue 1 10 02 ...
Страница 5: ...NSM 9DX Series Transceivers Issue 1 10 02 Nokia Corporation Baseband Troubleshooting Instructions ...
Страница 59: ...NSM 9DX Series Transceivers Issue 1 10 02 Nokia Corporation RF Troubleshooting Instructions ...