Nokia 6310i Service Manual page 185

PAMS Technical Documentation
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C292 towards D200 (UEM) ~4.75 VDC
all during GSM frame. Use TXP on J701
1.8 VDC <-> 0 VDC during GSM frame
TXIOUTP and TXIOUTN on C715
DC level = 1-1.25 VDC
TXQOUTP and TXQOUTN on C716
DC level = 1-1.25 VDC
Check analog common mode signals during
See RF trouble shooting
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Phone doesn't register to network
or phone doesn't make a call
Yes
C294 towards R308 ~2.78 VDC
C295 towards UEM ~2.78 VDC
C296 towards V310 ~2.78 VDC
C297 towards UEM ~2.78 VDC
C298 towards R307 ~2.78 VDC
C299 towards V310 ~2.78 VDC
C288 towards R306 = 1.35 VDC
C289 towards UEM = 1.35 VDC
Yes
Check RF serial bus:
RFBUSCLK on J421
RFBUSDA on J422
RFBUSEN1X on J423
Transitions "1" <-> "0",
Yes
Check analog signals during
GSM frame (Tx slot):
Yes
GSM frame (Rx slot):
Yes
Check RF
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6 - Troubleshooting
Check:
No
D200, D400,PWB
Check:
No
D400,PWB
Check:
D200,D400,
No
PWB, RF
RF
troubleshooting
No
NPL-1
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