Nokia 8208, Service Manual, Page: 106 / 170

RM-384
RF Troubleshooting
Page 4-18 Company Confidential Issue1
Copyright © 2008 Nokia. All rights reserved.
CELL 850 RX Path Troubleshooting
Troubleshooting flow
Check DC test point in
the Table 22.
Is it ok ?
Check TP11 in the Table
23.
Is it ok?
Check TP10 in the Table
23.
Is it ok?
Check TP9 in the Table
23.
Is it ok?
Check TP8 in the Table
23.
Is it ok?
Check TP7 in the Table
23.
Is it ok?
Check DC test point in
the Table 22. ( TP6)
Is it ok ?
Cell Rx path test
procedure
1. Check U403 (PMIC)
2. Check soldering point of the peripheral
circuit
3. Change defect component
1. Check F202
2. Check soldering point of the peripheral
circuit
3. Change defect component
1. Check U205(RFRxxxx)
2. Check soldering point of the peripheral
circuit
3. Change defect component
1. Check DPX102
2. Check soldering point of the peripheral
circuit
3. Change defect component
1. Check DPX101
2. Check soldering point of the peripheral
circuit
3. Change defect component
1. Check Carkit
2. Check soldering point of the peripheral
circuit
3. Change defect component
1. Check U205 (RFRXXXX)
2. Check soldering point of the peripheral
circuit
3. Change defect component
No
Yes
Yes
No
No
Yes
Yes
Yes
Yes
No
No
No
No
Yes
End