Kenwood TK-5400 Series Service Manual

Contents

41TK-5400CN No. Pin No. Name I/O FunctionTX-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 – GND11 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.CN No. Pin No. Name I/O Function25 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 : 7.5V32 Q7 O Key scan IC Q7 signal input.33 Q6 O Key scan IC Q6 signal input.CN703 1 CH D I CH switch data.2 CH A I CH switch data.for 3 CH C I CH switch data.X53 4 CH B I CH switch data.(B/6) 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 whenconnected 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 : 7.5V20 TXLED – TX LED control.Normally : 0V, Lighting : 7.5V21 BLED – Busy LED control.Normally : 0V, Lighting : 7.5V22 5M – 5V.CONTROL UNIT (X53-4030-XX) (A/6)CN1 1 Q6 O Key scan IC Q6 output.2 Q7 O Key scan IC Q7 output.TERMINAL FUNCTION