Terminal Function - Kenwood TK-7150 Service Manual

TK-7150
1. Display Unit (X54-3400-10) (A/2)
Pin No. Name
CN901 (To remote speaker)
1 IRS BTL output for remote speaker output.
2 ES2 BTL output for remote speaker output.
CN902 (To TX-RX unit)
1 ME MIC ground.
2 MIC MIC signal output.
3 E Ground.
4 RESET Reset signal input.
5 TXD Serial data input.
6 RXD Serial data output.
7 E Ground.
8 PSW Power switch control signal output.
9 SB Power input after power switch (13.6V± 15%).
10 IRS BTL input for remote speaker output.
11 ES2 BTL input for remote speaker output.
CN905 (To LCD assy)
1 E Ground.
2 VCC 5V.
3 CE Enable output for LCD driver.
4 CL Clock output for LCD driver.
5 DI Data output for LCD driver.
6 DO Not used.
7 DISP Display control signal output. "L" : Display off
8 LEDA Power output for LCD backlight.
9 LEDK Ground for LCD backlight. "L" : Backlight on
10 NC Non connection.
CN906 (To Display unit B/2 : CH SW)
1 E Ground.
2 P4 SW position signal input 4.
3 P3 SW position signal input 3.
4 P2 SW position signal input 2.
5 P1 SW position signal input 1.
J901 (MIC jack)
1 DM Serial data input for keypad MIC.
2 MIC MIC signal input.
3 PTT PTT signal input. "L" : TX, "OPEN" : RX
Serial data output.
4 SB Power output after power switch (13.6V± 15%).
66

TERMINAL FUNCTION

Description
Pin No. Name
5 HK Hook signal input. "L" : On hook, "H" : Off hook
Serial data input.
6 ME MIC ground.
7 E Ground.
8 BLC MIC backlight control signal output. "H" : On, "L" : Off
2. Display Unit (X54-3400-10) (B/2)
Pin No. Name
W1 (To Display unit A/2)
1 P1 SW position signal output 1.
2 P2 SW position signal output 2.
3 P3 SW position signal output 3.
4 P4 SW position signal output 4.
5 E Ground.
3. TX-RX Unit (X57-6570-10)
Pin No. Name
CN700 (To ANI board)
TX sens signal output.
1 BUSY
Conventional "H" : Not TX, "L" : TX
LTR "H" : Not Link complete, "L" : Link complete
2 EMG Emergency signal output.
"L" : Emergency function is operated,
"H" : Emergency function is not operated
L ≤ 0.05V, H ≥ 4.6V/30kΩ load
3 KEY TX control signal input.
Active low with 47kΩ pull-up to 5V
L ≤ 0.8V, H ≥ 2.5V
4 AUX Emergency signal input.
Active low with 47kΩ pull-up to 5V
L ≤ 0.8V, H ≥ 2.5V
5 INH MIC mute signal input. "L" : Mute
Active low with 47kΩ pull-up to 5V
L ≤ 0.8V, H ≥ 2.5V
6 STON Side tone input.
7 TCNT Speaker mute signal input. "L" : Unmute
L ≤ 0.8V, H ≥ 2.5V
8 DATA Data signal input.
9 E Ground.
10 8C 8V. (CN700 No.10 + CN701 No.13 = 100mA Max.)
Description
Description
Description