Kenwood NX-720 Service Manual

Also see for NEXEDGE NX-720: Installation guide Instruction manual Technical details Service manual Instruction manual

Contents

NX-720(G)/72034ADJUSTMENT■ Preparations for checking/tuning the transceiverBefore attempting to check/tune the transceiver, connectthe unit to a suitable power supply.Whenever the transmitter is turned on, the unit must beconnected to a suitable dummy load (i.e. power meter).The speaker output connector must be terminated with a4 dummy load and connected to an AC voltmeter and anaudio distortion meter or a SINAD measurement meter at alltimes during checking/tuning.Panel Test Mode■ Test mode operation featuresThis transceiver has a test mode. To enter test mode,press and hold the [ ] key while turning the transceiverpower ON. Before the transceiver enters test mode, thefrequency version information appears on the LCD momen-tarily. Test mode can be inhibited by programming. To exittest mode, turn the transceiver power OFF. The followingfunctions are available in test mode.ControlsPowerswitchModularMIC jackProgrammablefunction keysVolumeUp/Down keyChannelUp/Down keyLCDKMC-36 (OPTION)Keypad[PTT]■ Key operationKey “ ” not appears on the LCD displayFunction Display[ ]/[ ] Test channel up/down Channel No.[ ] Push: Squelch level upHold: Squelch offSquelch levelSquelch off: icon appears[ ] Wide 5k/Wide 4k/Narrow/Very narrowWide 5k: “W”Wide 4k: “S”Narrow: “N”Very narrow: “V”[ ] Shift to panel tuning mode -[ ] Function on “ ” appears on the LCDdisplay[ ] MSK 1200bps and 2400bps 2400bps: icon appears[ ]Push: Test signaling upHold: Test signaling upcontinuouslySignaling No.[ ]/[ ] Volume level up/down[PTT](MIC) Transmit -[0] to [9]and[#], [ ](MIC)Use as the DTMF keypad.If a key is pressed duringtransmission, the DTMFcorresponding to the keythat was presses is sent.-Key “ ” appears on the LCD displayFunction Display[ ] Function off -[ ] Analog /NXDN Analog: "A", NXDN: "N"[ ] Function off -[ ] LCD all lights LCD all point appears[ ] High/Low power High: icon not appearsLow : “ ” icon appears[ ] Function off -[ ] Compander on/off On: icon appears[ ] Beat shift on/off On: icon appears[ ]/[ ] Volume level up/down[PTT](MIC) Transmit -[0] to [9]and[#], [ ](MIC)Function off -