Nokia 8208 Service Manual page 102

PCS1900 TX Path Troubleshooting
Troubleshooting flow
PCS Tx path test
procedure
Check DC test point in
the Table 17.
( TP1,TP2,TP3)
Is it ok ?
Check DC test point in
the Table 17.
( TP4,TP5,TP6)
Is it ok ?
Check TP8 in the Table
Is it ok?
Check TP9 in the Table
Is it ok?
Check TP10 in the Table
Is it ok?
Check TP11 in the Table
Is it ok?
Check TP12 in the Table
Is it ok?
Check TP7 in the Table
Is it ok?
Check TP13 in the Table
Is it ok?
Page 4-14
No
Yes
No
Yes
19. No
Yes
19. No
Yes
19. No
Yes
19.
Yes
19.
Yes
19.
Yes
19.
Yes
End
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1. Check U403 (PMIC)
2. Check soldering point of the peripheral
circuit
3. Change defect component
1. Check U301 (MSMXXXX)
2. Check soldering point of the peripheral
circuit
3. Change defect component
1. Check U202 (RFTXXXX)
2. Check soldering point of the peripheral
circuit
3. Change defect component
1. Check SAW202 (B9014)
2. Check soldering point of the peripheral
circuit
3. Change defect component
1. Check U204 (AWT6308R)
2. Check soldering point of the peripheral
circuit
3. Change defect component
1. Check U207 (CP0402A0836AL)
2. Check soldering point of the peripheral
No
circuit
3. Change defect component
1. Check DPX103 (ACMD-7402)
2. Check soldering point of the peripheral
No
circuit
3. Change defect component
1. Check DPX101 (LFD21859)
2. Check soldering point of the peripheral
No
circuit
3. Change defect component
1. Check Carkit
2. Check soldering point of the peripheral
No
circuit
3. Change defect component
RM-384
RF Troubleshooting
Issue1