Terminal Function - Kenwood TK-5400 Series Service Manual

CN No. Pin No. Name I/O
TX-RX UNIT (X57-6530-10)
CN701 1 SSW I EXT/INT speaker switch input.
2 SP+ O BTL output + for external speaker.
3 SP– O BTL output – for external speaker.
4 MSW/CTS I EXT/INT MIC switch input.
5 EMC I External microphone input.
6 EME – External microphone GND.
7 PTT I External PTT input.
8 REM I Programmable function key input.
9 RTS O Request to send.
10 E – GND
11 5M – 5V.
12 TXD O Serial data output.
13 RXD I Serial data input.
14 DSR I Data set ready.
CN702 1 TCONT O For optional board.
2 OPPTT O For optional board.
for 3 AMPSW O Audio AMP control switch output.
X53 4 EXAFC O External speaker switch control.
(A/6) 5 INAFC O Internal speaker switch control.
6 NC – Not use.
7 KES O Key counter clear to send.
8 DGND – Digital GND.
9 KEY1 I Key input.
10 KEY2 I Key input.
11 LCS O LCD clear to send.
12 PTT I PTT signal input.
13 N/CSW O Noise canseler microphone switch output.
14 NC – Not use.
15 CLK O Clock data output.
16 DAT O Data output.
17 E – GND.
18 SB – Power output after power switch.
19 SB – Power output after power switch.
20 5M – 5V.
21 MICE – MIC GND.
22 MIC I MIC signal input.
23 AF O Audio output.
24 AFE – Audio GND.

TERMINAL FUNCTION

Function CN No. Pin No. Name I/O
CN703
for
X53
(B/6)
CN1
25 AFE – Audio GND.
26 SP+ I BTL input + for external speaker.
27 SP– I BTL input – for external speaker.
28 MUTE O Audio mute signal output.
29 SD TO O For optional board.
30 MAN D O For optional board.
31 LAMP O Backlight LED control.
Normally : 0V, Lighting : 7.5V
32 Q7 O Key scan IC Q7 signal input.
33 Q6 O Key scan IC Q6 signal input.
1 CH D I CH switch data.
2 CH A I CH switch data.
3 CH C I CH switch data.
4 CH B I CH switch data.
5 DGND – Digital GND.
6 VOL I Voltage level input for audio control.
7 33D – 3.3V.
8 B+ – Power input after passing through the fuse.
9 B+ – Power input after passing through the fuse.
10 PWSW – Power output after power switch.
11 PWSW – Power output after power switch.
12 TGL I Normally : 3.3V, switched toggle when
connected GND.
13 KEY2 I Key input.
14 Q6 O Key scan IC Q6 signal output.
15 Q7 O Key scan IC Q7 signal output.
16 LCDCS O Chip select output for LCD driver.
17 CLK O Clock data output for LCD driver.
18 DAT O Data output for LCD driver.
19 LAMP – Backlight LED control.
Normally : 0V, Lighting : 7.5V
20 TXLED – TX LED control.
Normally : 0V, Lighting : 7.5V
21 BLED – Busy LED control.
Normally : 0V, Lighting : 7.5V
22 5M – 5V.
CONTROL UNIT (X53-4030-XX) (A/6)
1 Q6 O Key scan IC Q6 output.
2 Q7 O Key scan IC Q7 output.
TK-5400
Function
41