User Guide

CC Technical Documentation Troubleshooting - BB
NPM-10 (3595)
Issue 2 03/2004 ©2004 Nokia Corporation Confidential Page 3
Baseband Testpoints
Figure 1: Baseband testpoints
Fault-Finding Charts
In this section, fault-finding charts are provided for the most common NPM-10 (3595)
errors.
Note: Since both D200 (UEM) and D400(UPP) are underfilled, they cannot be replaced. If either D200
or D400 is defective, the entire PWB has to be discarded.
J420
J425
J417
J418
J414
J402
J404
J408
J406
J407
J412
J413
J405
J415
J411
J409
C226
VR5
C223
VR2
C227
VR3
C224
VR7
C208
VCORE
C206
VANA
C205
VFLASH
HFCM
C157
HEADINT
VPP
FBUS-
TX
MBUS
FBUS-
RX
R161
EARP
R161
EARN
R164
MIC1N
R164
MIC1P
R165
MICB1
C100
VCHARIN
HF
C225
VR6
C222
VR4
C231
VREFRF0
R306
DLIGHT
R310
KLIGHT
R166
MICB2
J150
HOOKINT
SIM
CLK
SIM
RST
VSIM
J410
MBUSR
SIM
I/O
GND
J403
SLEEPX
C218
VIO
J420
FLSCSX
J425
RFCLK
J417
EXTRDX
J418
RLS2CSX
J414
DBUSDA
J402
PURX
J404
SLEEPCLK
J408
CBUSEN
J406
CBUSCLK
J407
CBUSDA
J412
FBUSRX
J409
MBUXTX
J411
FBUSTX
J415
DBUSEN
J405
UEMINT
J413
DBUSCL
J413
DBUSCL
J413
DBUSCL