Kantronics KPC–3 Plus User Manual
Also see for KPC-3 Plus: User guideUser guideManual
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223Appendix D: In Case of DifficultyYour Kantronics KPC-3 Plus is manufactured to very stringent quality standards. If youhave followed the installation procedures outlined in this manual, it is highly unlikely thatyou will encounter a failure. If you do have difficulty, use the procedures described inthis section to assist in isolating and correcting the problem.KPC-3 Plus Does Not “Sign-On” to Computer1. Carefully recheck cabling between your computer serial port and the KPC-3 Plus.2. Check carefully to insure that the Transmit Data, Receive Data, and Ground leadsare connected to the proper pins.3. If you have made a 5-wire connection to the computer serial port, change to a 3-wireconnection. To use HyperTerminal, you need a 5 wire connection, so if you changeto a 3 wire connection, you will need to use another terminal communicationprogram.4. Check your terminal program to be certain it is configured with the correctcommunications parameters (serial port, baud, parity).5. Try a ―Hard Reset‖ using the Hard Reset jumper. (Operate your terminal program at1200 baud when performing a hard reset.)You Are Unable to Make a “Connect”1. Issue a connect request and observe the TNC‘s XMIT LED. If the XMIT LEDilluminates, check to insure that the radio is connected to the radio port. If the XMITLED does not illuminate, check to be sure the XMITOK command is turned ON.2. Observe the radio to determine if it is being switched to the ―Transmit‖ condition. Ifnot, recheck wiring between the KPC-3 Plus radio port, PTT pin, and ground on themicrophone jack.3. Set the CD command to INTERNAL and turn the radio squelch control to ―OFF‖ andsee if the RCV LED illuminates on the packet controller. If it does not light, recheckthe audio connection between your transceiver and the KPC-3 Plus.4. If possible, monitor your transmitted signal with another radio. If the transmitter iskeying to ―Transmit‖ but weak or no audio is monitored, increase AFSK output asnecessary using R13. (See the AFSK Output Level section.)Cannot Transmit1. Check the XMITOK command – it must be ON to allow transmitting. |
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