Kenwood NX-320 Series Service Manual

Also see for NEXEDGE NX-320: Instruction manual Instruction manual Instruction manual Instruction manual Instruction manual

NX-32076TERMINAL FUNCTIONDisplay unit (X54-3760-XX A/3)Pin No. Name I/O FunctionCN51 33M I 33M input2 SCK0 I Clock input3 SDI0 I Serial data input4 SDO0 O Serial data output5 DISP_VER O Display version detection6 /EVCS I Chip enable7 /LCDCS I LCD IC chip enable8 GND - GND9 RXAF_2 I RX AF input with BEEP and VOICE10 ASQ O Analog squelch voltage output11 ASQAPC I Analog squelch signal input12 VOX O VOX voltage output13 MIC O MIC modulation output14 50C I 50C input15 MOD I AF modulation input16 GND - GND17 VCO_MOD O VCO modulation output18 33A I 33A input19 TV2 O Tuning control voltage 2 output20 TV1 O Tuning control voltage 1 output21 SPAF O AF output for amplifier22 GND - GND23 MICI I MIC modulation input24 SB2 I SB2 inputDisplay unit (X54-3760-XX B/3)Pin No. Name I/O FunctionCN61 GND - GND2 PTT O Internal PTT input3 /S1 O Key input (SIDE1 key)4 /S2 O Key input (SIDE2 key)5 /EMG O Key input (EMG key)6 GND - GNDTX-RX unit (X57-8050-XX)Pin No. Name I/O FunctionCN11 +B O Power output after passing throughthe fuse2 SB1 I Power input after power switch3 NC - No connection4 33A O 33A outputPin No. Name I/O Function5 VOL I Volume level input for audio control6 VOL_GND - GND for volume level7 ENC3 I Rotary switch input8 GND - GND9 ENC4 I Rotary switch input10 ENC2 I Rotary switch input11 ENC1 I Rotary switch inputCN21 SB2 O SB2 output2 MICI O MIC modulation output3 GND - GND4 SPAF I AF input for AF amplifier5 TV1 I Tuning control voltage 1 input6 TV2 I Tuning control voltage 2 input7 33A O 33A output8 VCO_MOD I VCO modulation input9 GND - GND10 MOD O AF modulation output11 50C O 50C output12 MIC I MIC modulation input13 VOX I VOX voltage input14 ASQAPC O Analog squelch signal output15 ASQ I Analog squelch voltage input16 RXAF_2 O RX AF output with BEEP and VOICE17 GND - GND18 /LCDCS O LCD IC chip enable19 /EVCS O Chip enable20 DISP_VER I Display version detection21 SDO0 O Serial data output22 SDI0 I Serial data input23 SCK0 O Clock output24 33M O 33M outputCN31 GND - GND2 PTT I Internal PTT output3 /S1 I Key output (Side1 key)4 /S2 I Key output (Side2 key)5 /EMG I Key output (EMG key)6 GND - GNDCN41 MIC+ I Internal MIC input2 MIC– - Internal MIC GND3 SP+ O Internal speaker output4 SP– - Internal speaker GND