Kenwood TS-890S Operation Manual - Page 183

TROUBLESHOOTING 18 Symptom Probable Cause Corrective Action There is no TX output power. The level of TX output power is low. The microphone connector is not fully inserted. Insert the microphone connector fully. The antenna connector is not properly connected. Connect the antenna properly. The microphone gain level is turned down. Adjust the microphone gain. The TX output power is set to the minimum level. Adjust the TX output power. High-temperature protection is activated. End the transmission and allow the temperature of this transceiver to go down. The carrier level is low. Turn the [CAR] control on the Carrier Level configuration screen until the pointer of the ALC meter falls within the appropriate range. The speech processor output level is low. Turn the [MIC/PITCH] control until the pointer of the ALC meter falls within the appropriate range. The TX audio source used for transmission is Check the input path of the TX audio to be different from the input path of the TX audio modulated. source input. Drive output (DRV) is enabled. Press [DRV] to switch off drive output. The straight key or paddle is not correctly connected. Check the connection. The transverter function is turned on. Press and hold [GENE] to cancel the transverter function. This transceiver is transmitting in a band (135 Press [DRV] to output from the DRV connector kHz or 475 kHz) that is not compatible with the (drive output). output from the antenna connector. There is no transmission. The PWR meter is not displayed. The [PTT] switch is locked while it is ON when Turn off the PTT lock. a desk microphone is used. The frequency has deviated from the amateur Set the frequency to an amateur band. band. TX Inhibit is ON. Configure TX Inhibit to "Off" in Menu [6-03]. Significant background noise can be heard when there is no sound during transmission in the SSB and AM modes. Microphone gain is too high. Carry out audio transmission while monitoring the ALC meter and adjust the microphone gain such that a small amount of ALC voltage is applied. The input level setting of the speech processor Turn the [MIC/PITCH] control until the pointer is high. of the COMP meter falls within the appropriate range. The VOX function is not functioning. The VOX gain setting is too low. Adjust the VOX gain. The anti VOX gain setting is too high. Adjust the anti VOX gain. Transmission starts by itself when this The VOX function is ON or the VOX gain level Set the VOX function to OFF or adjust the VOX transceiver is not operated. is not properly adjusted. gain level. The signal level of the TX audio source that is Lower the level of the signal input. input from the rear panel terminal is high. Audio signal is input from a connector for which Set Data VOX to OFF or review the audio the audio source setting of the TX audio is source setting before adjusting the VOX gain enabled and the same audio source is also level. specified for Data VOX. The receiving station has reported that Microphone gain is high. the audio sound is distorted or clipped. Use the TX monitor function or adjust the microphone gain while having the receiving station monitor the transmission. The input level of the speech processor is high. Use the TX monitor function or adjust the speech processor input level while having the receiving station monitor the transmission. Refer to 1-2 2-6 4-8 4-8 5-8 8-4 8-1 4-11 1-2 1-3 16-15 16-15 2-8 4-3 16-11 4-8 8-4 8-1 8-2 8-1 8-1 4-8 8-4 18-3