Nokia 6310i Service Manual page 187

PAMS Technical Documentation
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Display
Fault
Is
Change
No
display
display
working
module
Yes
Is
display
working
END
,VVXH  $SULO 
No
Yes
Measure
Vflash1 is
2,78V
Yes
Measure
Vio is
1,8V
Yes
Measure
Vout at
C302 is
~10,7V
Yes
UPP FAILURE
1RNLD &RUSRUDWLRQ
Turn phone off and
No
ohm measure
between Vflash1
and ground.
~46k ohm
UEM FAILURE
Turn phone off and
No
ohm measure
between Vio and
ground.
~510k ohm
UEM FAILURE
No
Check C302
OK
NPL-1
6 - Troubleshooting
Check C239, C279,
0 ohm
C304, C309, C350
R174, R202 and R352.
OK
Check C207, C218,
0R
C303, C404, C405,
C450, C451 and R173.
OK
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