Nokia 6310I - Cell Phone - GSM, Service Manual

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NPL-1
6 - Troubleshooting PAMS Technical Documentation
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Not OK
NO
YES
YES
NO
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 Re-solder
Re-flash BT only
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 (V130 P6)
See RF troubleshooting document
Check VFLASH1 & L133
Replace MCM
Test points can be seen in the document “Baseband testpoints”.
2.