Tx Iq Self Test (St_Cdsp_Tx_Iq_Test) - Nokia RM-57 Service Manual

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2.3 TX IQ self test (ST_CDSP_TX_IQ_TEST)

TX_IQ_TEST (85) checks that the TXIQ lines between RAP & Vinku are properly connected. If this
fails also power tests and RXIQ loopback will fail.
Tested signals: VBAT_ASIC, TXIP, TXIQ, TXQP, TXQN, DAC_REF1, RFBUS
Error code for this self test is given in format:
• 0xyy, 0xzz, MeasResult1, MeasResult2, ...
,where 0xyy, 0xzz is the main part of the error code:
ST_CDSP_TX_IQ_TEST
ALL or ANY ERROR
(0x00xx)
Propable cause:
Poor soldering/faulty
Poor soldering/faulty RAP
Other possible reasons:
RETU, but since we've
gotten this far
without fails it should be
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Appendix A: RF Troubleshooting
0xyyzz
ERRORS
YES
VINKU
OK
A-13