Nokia 6310i Service Manual page 196

NPL-1
6 - Troubleshooting
RF Fail
The problem is most likely RF related
if the following conditions are
fulfilled.
•
Module can be flashed and BER
Test can be initiated.
•
BER is above limit or no
connection to BT-Box
Visual soldering inspection
Measure SYSCLK (V130 P50)
0.3 ... 0.8Vpp
Reference: 11pF probe.
Note: The measured result can depend
very much on the probe type.
Tip: If nessesary, measure a known
good prototype with the same probe.
Measure Vreg ≈ 2.8 volts
Replace MCM
Re-flash BT only
Test points can be seen in the document "Baseband testpoints".
3DJH 
Not OK
2.
NO
YES
NO
(V130 P6)
YES
1RNLD &RUSRUDWLRQ
PAMS Technical Documentation
Re-solder
See RF troubleshooting document
Check VFLASH1 & L133
,VVXH  $SULO