Nokia 1508i Troubleshooting Manual page 17

1508i(RM-430)
RF Description and Troubleshooting
Care
Rx Path Troubleshooting
Rx path faults
Measure DC test points at
table 4, is it OK?
Yes
Measure Rx RF test points
1 at table 5, is it OK?
Yes
Measure Rx RF test points
2 bl i i OK?
Yes
Measure Rx RF test points
3 ,4 at table 5, is it OK?
Yes
Measure Rx RF test points
5,6,7,8 at table 5,is it OK?
Yes
Measure RX RF test points
9 at table5, is it ok?
Yes
Note:
Connect System
• CBP5.6 is underfilled and can not be replaced.
• The Shielding Case Assy can not be reused after removal.
• After using the heatgun, the domesheet needs to be replaced
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No
Check U1001(ACT5808)
Reheat solder joints of
No
C320
Reheat solder joints of
No
C316
Reheat solders joints of
No
D301
No
Change U301
No
Change U202
Check antenna module
Issue 1
Nokia Customer
No
Reheat solder joints of