Transmitter Troubleshooting; Transmitter Troubleshooting Overview - Nokia c2-00 Service Manual

RM-704
RF Troubleshooting
Figure 42 X-Gold RX pin volts @ L7100(LB) / L7101(HB)

Transmitter troubleshooting

Transmitter troubleshooting overview

If the phone failure identified at maintenance step1&3 is transmitter fail, and then the phone should be set
to the TX check mode, and then follow the corresponding workflow below for troubleshooting.
Abbreviation and terms:
Specific abbreviations used in TX troubleshooting workflow are described here:
Abbreviation Definition
TXLB_PI_ATT R7107, R7112, R7105
TXHB_PI_ATT R7104, R7108, R7103
TXLB_H4FILTER C7108, C7120, L7504
TXHB_H2FILTER C7109, C7101, L7106
FEM_TxCtl VC1,VC2, VC3, PAEN
FEM_TxCtrlRes R7106, R7110, R7113,R7100
FEM_TxCtrlCap C7105, C7107, C7110,C7132
FEM_BatComp L7707, C7135, C7125, C7117, C7111
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