Nokia RM-42 Service Manual page 278

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VB_EXT line fail
(0x0001)
YES YES
Does also Hinku's VB_EXT
line fail (0x0001)
YES YES
Propable cause:
Propable cause:
Poor soldering/faulty RETU
Poor soldering/faulty RETU
Other possible reasons:
Other possible reasons:
- Problem in VB_ext connection -Problem in VB_EXT connection
between RF & BB
between RF & BB
- Poor soldering/faulty
- Poor soldering/faulty HINKU and
HINKU AND VINKU
VINKU
A-10
ST_CDSP_RF_SUPPLY_TEST,
ST_CDSP_RF_SUPPLY_TEST,
VINKU ERRORS, PAGE2
VINKU ERRORS, PAGE2
NO NO
NO NO
VXO supply fail
(0x0002)
YES YES
Propable cause: Propable cause:
Faulty Vinku /Test error
Faulty Vinku/Test error
NO NO
(BB/IF tests have been
(BB/IF tests have been passed so
passed so VDIG has to be OK!
VDIG has to be OK! So the
So the problem is in the testmux )
problem is in the test mux)
Propable cause:
Propable cause:
Poor solder/faulty VINKU
Poor solder/Faulty VINKU
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NO NO
VBAT1 OR VR1 VBAT2 OR VR2
(0x0004) (0x0008)
YES YES
VBAT1 (VBAT_ASIC) VBAT2 (VBAT_ASIC)
OK? OK?
YES YES
VR1 (VREG1) OK? NO NO VR2 (VREG2) OK?
YES YES
Propable cause:
Propable cause:
Propable cause:
Test error
Test error
Propable cause: Propable cause:
Poor solder/Faulty VINKU
Poor soldering/faulty RETU
Other possible reasons:
Other possible reasons:
Faulty capacitor connected
Faulty capacitor connected
to VR1
to VR1
Appendix A: RF Troubleshooting
Go to
Go to
NO NO ST_CDSP_RF_SUPP
ST_CDSP_RF_SUPPLY
_TEST VINKU ERRORS
LY
PAGE 3
_TEST VINKU
ERRORS PAGE 3
YES YES
YES YES
NO NO
YES YES
Propable cause:
Test error
Test error
Propable cause:
Propable cause:
Poor solder/faulty VINKU
Poor solder/Faulty VINKU
Other possible reasons:
Other possible reasons:
Faulty capacitor connected Faulty capacitor connected
to VR2 to VR2