Nokia RM-180 Service Manual

Audio signal electrical characteristics
Description Parameter Typ Unit Notes
XMIC N Audio in 1 V
pp
DC Offset 2.5-2.78V
XMIC P Audio in 1 V
pp
DC Offset 2.5-2.78V
HSEAR N Audio out 1 V
pp
10Ω nominal serial
impedance
HSEAR P Audio out 1 V
pp
10Ω nominal serial
impedance
HSEAR R N Audio out 1 V
pp
10Ω nominal serial
impedance
Not connected in
mono
HSEAR R P Audio out 1 V
pp
10Ω nominal serial
impedance
Not connected in
mono
SIM IF connections
Pin Signal I/O Engine connection Notes
C1 VSIM Out N2200 VSIM1 Supply voltage
to SIM card, 1.8
V or 3.0 V.
C2 SIMRST Out N2200 SIM1Rst Reset signal to
SIM card
C3 SIMCLK Out N2200 SIM1ClkC Clock signal to
SIM card
C5 GND - GND Ground
C7 SIMDATA In/Out N2200 SIM1DaC Data input /
output
RS MMC interface connections
Pin Signal I/O Engine connection Notes
1 RSV NC NC Reserved for
future use
2 CMD <-> D4800 MMC2_CMD Command/
Response
3 Vss1 GND Ground
RM-180
Nokia Customer Care System Module
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Nokia RM-180 Specifications

General

Brand	Nokia
Model	RM-180
Category	Cell Phone
Language	English