Nokia 6610 Repair Hint page 13

Customer Care Europe, Middle East & Africa
SCCE Training Group
 2003 Nokia Mobile Phones
If VSIM is ok, check following signals with inserted SIM card:
SIMCLK = 3.25MHz at X386 Pin1
SIMRST = 3VDC at X386 Pin2
SIMDATA at X386 Pin6
If any of the signals above is not measureable, change R388. If the fault persists after changing R388, change UEM D200.
© NMP 2003
CONFIDENTIAL
NHL-4u/NHL4/NHL-4j
6610/7210/7250
Date 21/05/2003
SIMDATA (example) Figure 4
SIMCLK Figure 5
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SCCE Training Group
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Repairhints
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CC Europe, Middle East & Africa