Flowchart "Insert Sim Card - Nokia 6610 Repair Hint

Customer Care Europe, Middle East & Africa
SCCE Training Group
 2003 Nokia Mobile Phones

Flowchart "Insert SIM card"

"Insert SIM card"
Set phone to local mode and
check with oscilloscope
VSIM, SIMCLK, SIMDATA,
SIMRST and compare with
oscillograms in chapter
"Insert SIM card".
Check
without SIM
card: VSIM at
X386 pin3.
ok
Check
with SIM card:
SIMCLK at X386 pin1,
SIMDATA at X386 pin6,
SIMRST = 3VDC at X386
pin2
ok
© NMP 2003
Check
resistance = 10Ohm
nok
between C203 and
X386
pin3.
Change
R388 and check
nok
SIMCLK, SIMDATA and
SIMRST again.
Signals ok?
CONFIDENTIAL
NHL-4u/NHL4/NHL-4j
6610/7210/7250
Date 21/05/2003
If the resistance is 1kOhm or
higher, check R388 if it is broken
nok
and change if necessary;
otherwise change PWB.
nok
nok
Change UEM
D200
ok
ok
SIM ok
Checked by:
SCCE Training Group
14 (22)
Repairhints
Version 3.0
ok
Change
R388 and check
VSIM.
VSIM ok?
ok
Approved by:
CC Europe, Middle East & Africa