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NX-800/800H
62
Display unit (X54-3640-10)
Pin No.
Name Function
CN901 (to TX-RX unit A/2 CN597)
1~6 SPO Speaker input.
7 GND Ground.
8 80C 8V input.
9,10 SB Power input of switched power supply.
11 NC Non connection.
12 /PSW Detection signal output of power switch.
13,14 GND Ground.
15 MIC MIC signal output.
16 ME MIC ground.
17 GND Ground.
18 AFO RX fi ltered AF signal input.
19 /PRST Display MCU reset signal input.
20~23 GND Ground.
24 SHIFT Control signal input of Beat-shift function.
25 NC Non connection.
26 5C 5V output.
27 TXD Serial data signal input.
28 RXD Serial data signal output.
29,30 GND Ground.
CN902 (to internal speaker)
1 GND Ground.
2 SPO Speaker output.
CN905 (to LCD ASSY)
1 V5 LCD Drive voltage output.
2 V4 LCD Drive voltage output.
3 V3 LCD Drive voltage output.
4 V2 LCD Drive voltage output.
5 V1 LCD Drive voltage output.
6 Vdd LCD Driver DC power supply.
7 Vss LCD Driver Ground.
8 Vdd LCD Driver DC power supply.
9 D7 LCD Driver data output.
10 D6 LCD Driver data output.
11 D5 LCD Driver data output.
12 D4 LCD Driver data output.
13 D3 LCD Driver data output.
14 D2 LCD Driver data output.
15 D1 LCD Driver data output.
16 D0 LCD Driver data output.
17 /WR LCD Driver WR signal output.
18 A0 LCD Driver address output.
19 /RES LCD Driver Reset signal output.
20 /CS LCD Driver Chip-select signal output.
Pin No.
Name Function
J901 (MIC jack)
1 BLC MIC key backlight control.
2SB
Power output of switched power supply.
DC13.6V±15%, 200mA typ.
3 E Ground.
4 PTT/TXD PTT: PTT input, TXD:S erial data output.
5 ME MIC ground.
6 MIC MIC signal input.
7 HOOK/RXD
HOOK: Hook detection,
RXD: Serial data input.
8 DM MIC data detection.
TX-RX unit (X57-7390-XX) (A/2)
Pin No.
Name Function
CN595 (to Option board)
1 OPT1
Refer to “CN595 26-pin connector specifi -
cation”.
2 OPT3
3 26P_RD
4 26P_TD
5NC
6 OPT4
7 OPT10
8 OPT5
9 DGND
10 AGND
11 AI
12 AO
13 AGND
14 5V
15 OPT9
16 DTI
17 OPT8
18 OPT11
19 OPT7
20 OPT2
21 TXO
22 RXEO
23 RXEI
24 TXI
25 OPT6
26 POW
CN597 (to Display Unit CN901)
1,2 GND Ground
3 RXD Serial data signal input
4 TXD Serial data signal output
TERMINAL FUNCTION