Nokia 6610 - Flowchart Insert SIM Card

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Customer Care Europe, Middle East & Africa NHL-4u/NHL4/NHL-4j Repairhints
SCCE Training Group 6610/7210/7250 Version 3.0
 2003 Nokia Mobile Phones
Date 21/05/2003
© NMP 2003
Checked by:
SCCE Training Group
Approved by:
CC Europe, Middle East & Africa
Flowchart “Insert SIM card”
"Insert SIM card"
Check
without SIM
card:
VSIM at
X386 pin3.
Check
with SIM card:
SIMCLK at X386 pin1,
SIMDATA at X386 pin6,
SIMRST = 3VDC at X386
pin2
Check
resistance = 10Ohm
between C203 and
X386
pin3.
Change UEM
D200
Change
R388 and check
VSIM.
VSIM ok?
SIM ok
Set phone to local mode and
check with oscilloscope
VSIM, SIMCLK, SIMDATA,
SIMRST and compare with
oscillograms in chapter
"Insert SIM card".
Change
R388 and check
SIMCLK, SIMDATA and
SIMRST again.
Signals ok?
nok
ok
ok
ok
ok
nok
nok
ok
ok
nok
If the resistance is 1kOhm or
higher, check R388 if it is broken
and change if necessary;
otherwise change PWB.
nok