Nokia 8910 - Sending a text message

CONFIDENTIAL 13 (16)
NHM-4/NHM-4NX 8910/8910i Repairhints
Customer Care Europe, Middle East & Africa Version 2.0 Approved
SCCE Training Group Date 03.06.2003
© NMP 2003
Checked by:
SCCE Training Group
Approved by:
SCCE
Flowchart “Insert SIM card”
"Insert SIM card"
VSIM at X386 Pin3
ok?
Check
with SIM card
VSIM=3 at X386 Pin 3
VDC SIMCLK at X386 Pin1
SIMDATA at X386 Pin6
SIMRST = 3VDC at
X386 Pin2.
Check
resistance = 0Ohm
between C203,
C389 and X386
Pin3.
If the resistance is
kohm or high,
change PWB.
Change UEM
D200.
Change
R388 and check
VSIM.
VSIM ok?
SIM ok.
Check with oscilloscope
VSIM, SIMCLK, SIMDATA,
SIMRST with oscillograms
described in chapter "Insert
SIM card".
Change
R388 and check VSIM,
SIMCLK, SIMDATA and
SIMRST again.
Signals ok?
nok
ok
ok
ok
ok
nok
nok
nok
ok
nok
ok