User Guide

PAMS
Technical Documentation
RAE-3
8. Troubleshooting
Page 8 – 52
Issue 1 06/01
Insert SIM card fault
Check Voltage level between R121 and C126
Check VSIM, DATA, RESET, CLOCK lines
Lines
rising 0V–>3V/5V
after power on ?
Check VSIM (V103 pin 3)
3V card: Check
N100 (CCONT)
C112, C113
Replace
if necessary
Check SIM card,
SIM card reader
mechanical
connections
Check
X100, V103
R109, R112
R125
5V card:Check
5V charge pump
components
C107
V101
C110
Still
problem?
Faulty
N100
(CCONT)
Replace
N100 (CCONT)
Still
problem?
Replace D300 (MAD)
NO– 3V
YES
YES
YES
NO–5V
NO
YES
When BSI resistor connected (included in
service jig
Volt.level
<1.5V ?
Check
NO
R121, R122,
X100, C126
YES
YES
at the pins of ASIM connector (X100)
or SIM_xxx cardside signals at
measurement points
YES
YES
DATA_0 (R109)
SIMRST_0 (R125) at
N100/CCONT side
(ref. Measurement point diagram)
Lines
rising 0V–>3V/5V
after power on ?
NO
YES
NO
NO
Still
problem?
SIM I/O OK,
N100 (CCONT)
faulty
Faulty D300
Faulty PWB
VSIM at SIM card pin
2.8V min. with 3V card
4.5V with 5V card
Figure 39.