Gsm Transmitter Self Test (St_Cdsp_Gsm_Tx_Power_Test) - Nokia RM-42 Service Manual

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Appendix A: RF Troubleshooting

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2.10 GSM transmitter self test (ST_CDSP_GSM_TX_POWER_TEST)

TX_GSM_POWER_TEST (77) checks the output power of the GSM transmitter.

Test covers: RFIC Vinku (N7501), modulator, IC gain control stages, filter/balun solder joints, GSM PA

(N7502), PA bias lines & DACs, RFBUS, TX power detector functionality, VBAT_ASIC, VBAT_PA.

Test does not cover: Antenna functionality, RX/TX-switch functionality, and TX signal quality

Error code for this self test is given in format:

0xyy, 0xzz, MeasResult1, MeasResult2, ...

,where 0xyy, 0xzz part is the main part of the error code:

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