Nokia 9000i Service Manual page 41

After Sales
Technical Documentation
Table 15.
Signal Name
RDA
TDA
M2BUS
LID
EXTMIC
EXTEAR
AGND
Signal Name
PHFEARN
PHFEARP
Signal Name
VBATT
BUZZER
EARN
EARP
GND
SIMCLK
SIMRESET
VSIM
SIMDATA
MICN
MICP
Original, 08/96
PDA board to board connector (B2B)
Pin(s)
34 DBUS received data from the accessories
35 Transmitted DBUS–data to the accessories
36 Serial bidirectional data and control between
the CMT and accessories.
38 Cover switch state from PDA to CMT
41 External audio input from accessories or
handsfree microphone. Multiplexed with junc-
tion box connection indication. 16.8k pull down
in CMT
42 External audio output to accessories or hands-
free speaker. 100kW pull–down in CMT to turn
on the junction box.
43 Analog ground for accessories.
Connected directly to digital ground on the
PCB.
Table 16.
PHF speaker connector
Pin(s)
1 PHF speaker, negative node
2 PHF speaker, positive node
Table 17.
SIMFLEX Connector
Pin
1 Battery voltage for buzzer
2 Excitation for buzzer (pull–down)
3 Differential audio for the earpiece
4
5,10 Ground
6 Clock for SIM data
7 Reset for SIM
8 SIM voltage supply
9 Serial data for SIM
11 Differential audio from the microphone
12
RAE/RAK–1N
Baseband
(continued)
Notes
Notes
Notes
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