Baseband Troubleshooting - Nokia NPL-3 Series Troubleshooting Instructions

NPL-3
Troubleshooting Instructions

Baseband troubleshooting

RFCLK (R420, C420)
J154 DATA (UPP-
J418 FLS2CSX (UPP->FLASH)
J417 EXTRDX (UPP-
J419 FLSCLK (UPP-
J416 EXTWRX (UPP-
J420 FLSCSX (UPP)
VIO
VSIM (C203)
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Figure 30: Basic baseband test points
VrefRF01 (C231) VR5 (C226)
J403 SLEEPX (UPP->UEM)
J414 DBUSDA (UPP<>UEM)
J413 DBUSCLK (UPP->UEM)
J402 PURX (UEM->UPP)
J405 UEMINT (UEM->UPP)
J404 SLEEPCLK (UEM->UPP)
J415 DBUSEN1X (UPP->UEM)
J407 CBUSDA (UPP<>UEM)
J406 CBUSCLK (UPP->UEM)
J408 CBUSENX (UPP->UEM)
J411 FBUSTX (UPP->UEM)
J409 MBUSTX (UPP->UEM)
J410 MBUSRX (UEM->UPP)
J412 FBUSRX (UEM->UPP)
J386 SIMIODAO (UEM<>SIM)
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CCS Technical Documentation
VR3 (C227) VLED+ (R307)
VR7 (C224)
VR2 (C223)
VR4 (C222)
VR6 (C225)
VR1A (C221)
VCORE (C208)
VFLASH2 (C204)
VANA (C206)
VFLASH1 (C205)
SleepClk crystal (C209,
J153 CLK (UPP->AUDIO
J152 ENB (UPP->AUDIO
MICB1 (C152)
Issue 1 3/03