Table of Contents
Advertisement
Appendix A: RF Troubleshooting
VRFTX fail
VRFTX Fail
(0x0010)
(0x0010)
Propable cause:
Propable cause:
Poor solder
Poor solder
Other possible reasons:
Other possible reasons:
Faulty capacitor at VRXTX pin
Faulty capacitor at VRXTX pin
VPRE Fail
VPRE fail
(0x0100)
(0x0100)
Propable cause:
Propable cause:
Poor solder
Poor solder
Other possible reasons:
Other possible reasons:
Faulty capacitor at VPRE pin
Faulty capacitor at VPRE pin
VVGA fail
VVGA Fail
NO
NO
(0x0020)
(0x0020)
YES
YES
YES
YES
Propable cause:
Propable cause:
Poor solder
Poor solder
Other possible reasons:
Other possible reasons:
Faulty capacitor at VVGA pin
Faulty capacitor at VVGA pin
RBE_EXT or internal
RB_EXT or internal
NO
NO
bias block
bias block
(0x0200)
(0x0200)
YES
YES
Propable cause:
Propable cause:
Poor solder/Faulty VINKU
Poor solder/Faulty Vinku
Other possible reasons:
Other possible reasons:
Wrong or missing resistor at
Wrong or missing resistor at
RB_ext pin
Copyright © 2005 Nokia. All rights reserved
ST_CDSP_RF_SUPPLY_TEST,
ST_CDSP_RF_SUPPLY_TES
VINKU ERRORS, PAGE
VINKU ERRORS, PAGE 3
VVCO fail
VVCO Fail
NO
NO
(0x0040)
(0x0040)
YES
YES
Propable cause:
Propable cause:
Poor solder
Poor solder
Other possible reasons:
Other possible reasons:
Faulty capacitor at VVCO pin
Faulty capacitor at VVCO pin
Temperature sensor
NO
NO
Temperature sensor
(0x0800)
(0x0800)
YES
YES
Propable cause:
Propable cause:
Faulty VINKU
Faulty Vinku
Other possible reasons:
Other possible reasons:
Too hot or cold
environment...
Company Confidential
VLO fail
VLO Fail
NO
NO
(0x0080)
(0x0080)
YES
YES
Propable cause:
Propable cause:
Poor solder
Poor solder
Other possible reasons:
Other possible reasons:
Faulty capacitor at VLO pin
Faulty capacitor at VLO pin
It's not possible to
It's not possible to get
NO
NO
get here ...
here...
YES
YES
Nokia Customer Care
NO
NO
A-11
Advertisement
Chapters
Table of Contents
Troubleshooting
