Nokia NPM-6 Series Troubleshooting Instructions page 44

Troubleshooting Instructions
Flashlight
faults
Set phone to LOCAL mode. Set
VBATT to 4.2V. Start Display
test with Phoenix.
Set "Flashlight" ON
Are flashlight
(LED) turned on ?
Yes
Display faults
2
Page 44
Check CALLED1 (N300/8
and CALLED2 (V320/IN).Are
they HIGH ?
Yes
Measure
voltage over C304.
Is it typ. 8.6V ?
Yes
Measure
voltage V317/3 .Is it
typ. 7.2V ?
Yes
ãNokia Corporation.
CCS Technical Documentation
Check lines of
CALLED1 and
No
CALLED2. If lines are
OK change UEM
Check
C302,C303,L300,V30
No
0, R301, R302, R303,
R325, C304.
If OK change N300
Check V320, V317,
No
R315, R316
Change V318,V319
Issue 1 01/03