Nokia 9000i Service Manual page 127

After Sales
Technical Documentation
Table 8. PDA board to board connector
Signal Name
EXTMIC
EXTEAR
AGND
Signal Name
PHFMICN
PHFMICP
Table 10. LCDM module flex connector on PROCU
Signal Name
GND
VB
VL1
LCMUIF(3:0)
LCMUIF4
LCMUIF5
LCMUIF6
LCMCOL(3:0)
BACKLIGHTO
LCMXPRON
LCDD(3:0)
LP
PCLK
FP
DISPON
LCDVCC
LCDVEE
KEYD(2:0)
KEYS(1:0)
Original, 08/96
Pin
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 junc-
tion box.
43 Analog ground for accessories.
Connected directly to digital ground on the
PCB.
Table 9. HFMIC Connector
Pin
1 Negative MIC input
2 Positive MIC input
Pin
10, 17, 24 Ground or VB (flex material dependent)
1 Power lines for backlight LEDs
2 Phone LCD power
6, 5, 4, 3 Lines for keypad read and LCD–controller data
7 Line for keypad read and LCD–controller read/
write strobe
8 Line for keypad read and LCD–controller data/
instruction register selection
9 LCD–controller enable strobe
14, 13, 12, 11 Lines for keypad write
15 Backlights on/off (controll)
16 Power ON/OFF key
21, 20, 19, 18 PDA LCD Data lines
22 PDA LCD, Line pulse
23 PDA LCD, Pixel clock
25 PDA LCD, Frame Pulse
26 PDA Display on control signal
27 PDA LCD Logic voltage
28 PDA LCD Bias voltage (+21V)
31, 30, 29 Keymatrix drive lines
33, 32 Keymatrix sense lines
RAE/RAK–1N
PDA Hardware
(continued)
Notes
Notes
Notes
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