User Guide

NPM-2NX
System Module CCS Technical Documentation
Page 48 ãNokia Corporation Issue 1 07/02
Test Pattern for production tests
Table 24: Test Pattern Interface Signal Description
General about testing
Phone operating modes
Phone has three different modes for testing/repairing phone. Modes can be selected with
suitable resistors connected to BSI- and BTEMP- lines as following:
Table 25: Mode selection resistors
The MCU software enters automatically to local or test mode at start-up if correspond-
ing resistors are connected.
Note: The baseband does not wake up automatically when the battery voltage is con-
nected (normal mode). The power can be switched on by
- Pressing the power key
BTEMP UEM Btemp NTC Resistor, 100 kohm pull up
to 2.78V(VANA)
Rip
#
Signal
Name
DAMPS/
GSM190
0
Connected
from-- to
UI
I/O
Signal Properties
A/D--Levels---Freq./
Timing resolution
Description / Notes
2 FBUSTX /
FDLTX
Test
Point
UEM O
ut
Di
g
0/2.7V FBUS asynchronous serial data output
/ FDL TxData
3 FBUSRX /
FDLRX
Test
Point
UEM In Di
g
0/2.7V FBUS asynchronous serial data input /
FDL RxData
6 VPP Test
Point
Mem-
ory
O
ut
A
n
a
0/5/12V External Flash Programming Voltage
for Flash Memory
7 MBUS /
FDLCLK
Test
Point
UEM In
/
O
ut
Di
g
0/2.7V 9k6bit/s MBUS bi-directional asynchronous
serial data bus/FDL Clock
8 GND Test
Point
BB Ground
Mode BSI- resistor BTEMP- resistor Remarks
Normal 68k 47k
Local 560_ (<1k_) What ever
Test 3.3k (> 1k) 560_ (<1k_) Recommended with baseband testing. Same as
local mode, but making a phone call is possible.