User Guide

PAMS
Technical Documentation
NSE–8/9
Troubleshooting
Page 18
Issue 1 07/99
Insert SIM card fault
VSIM (C137), DATA_0
(C140), SIMRST_0 (C139) and
SIMCLK_0 (C138) lines rise up to 3V on the
first puls and then 5V the next tree pulse
after power on with out simcard
Check soldring and springs
on X100
Yes
SIMIF(4:0) lines
SIMPWR (J321), SIMCardData (J325),
SIMCardRst (J324), SIMCLK (J323),
SIMIOC (J322)
rise to 2.8V after power on
No
Faulty PCB, N100
Yes
Faulty D300
No
Figure 4–13