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16 TROUBLESHOOTING
Problem |
| Probable Cause |
| Corrective Action | Page |
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Attempting to | 1 | The antenna is not connected | 1 | Check the antenna connection. | 2, 4 |
transmit results in |
| correctly. |
| Correct as necessary. |
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the “HELLO” | 2 | The impedances of the antenna and | 2 | Reduce the SWR of the antenna | 2, 4 |
message appearing |
| transceiver are not properly |
| system. |
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and the reception |
| matched. |
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mode being | 3 | The input voltage is outside 13.8 V | 3 | Correct the input voltage or use a 12 to | 2 |
restored. |
| DC ±15% (11.7 to 15.8 V DC). |
| 16 V battery. |
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| 4 The current rating of the DC power | 4 | Use a DC power supply that has a | 3 | |
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| supply is not enough. |
| current rating of more than 20.5 A at |
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| 13.8 V DC. As for the |
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| 2 DC power supplies are required to |
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| transmit. |
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The transceiver has | 1 | The microphone gain is set too low. | 1 | When in SSB or AM mode, increase | 27, |
low transmission |
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| the microphone gain. | 28 |
power. | 2 | Poor antenna system connections | 2 | Check the antenna connections. | 60 |
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| are causing high SWR. |
| Confirm that the antenna tuner is |
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| reporting a low SWR. |
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VOX does not | The VOX gain is set too low. | Increase the VOX gain. | 36 | ||
operate. |
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HF/ 50 MHz Linear | 1 | The linear amplifier control is OFF. | 1 | Set Menu No. 28 (HF) or | 63 |
amplifier does not |
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| 29 (50 MHz) to 1, 2, or 3. |
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operate. | 2 | The REMOTE connector wiring is | 2 | Inspect the REMOTE connector wiring | 77 |
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| wrong or faulty. |
| and correct it as necessary. |
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The transceiver’s | 1 | The air filters for the cooling fan(s) | 1 | Contact a KENWOOD authorized | 89 |
output power |
| have been congested with dust. |
| service center to clean the filters. |
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decreases after a | 2 | The cooling fan(s) cannot provide | 2 | Relocate the transceiver so that air can | 89 |
short operating time. |
| enough air flow to cool the |
| easily flow through the TX/ RX unit to |
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| transceiver down. |
| keep the unit cooled. |
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You cannot access | 1 | Many repeaters require a subtone or | 1 | Review “FM REPEATER OPERATION” | 31 |
and use repeaters. |
| 1750 Hz tone to access. |
| and select the correct frequency and |
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| type of subtone. |
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| 2 | Transmission and/ or reception | 2 | You must transmit on the repeater’s | 31 |
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| frequency is wrong. |
| input frequency and receive on the |
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| repeater’s output frequency. Refer to |
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| “FM REPEATER OPERATION”. |
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Digital operation | 1 | Physical connections between the | 1 | 77, | |
results in few or no |
| transceiver, computer, and TNC/ MCP |
| manual, your TNC/ MCP manual, and | 78 |
connects or contacts |
| is incorrect, or software settings in the |
| your computer hardware manual as |
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with other stations. |
| TNC/ MCP are wrong. |
| references. |
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| 2 | Different transmission and reception | 2 | Confirm that the RIT and XIT functions | 35, |
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| frequencies are being used. |
| are switched OFF. Confirm that you | 37 |
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| are NOT operating split frequency. |
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| 3 | The levels between the transceiver | 3 | Adjust TX and RX levels using Menu | 77, |
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| and the TNC/ MCP are incorrect. |
| No. 46 and 47, and level controls on | 78 |
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| your TNC/ MCP. |
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| 4 | Your transmitted signal or the | 4 | Reorient/ relocate your antenna or | 2, 4 |
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| incoming receive signal is too weak. |
| increase your antenna gain. |
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| 5 | The TX delay time parameter in your | 5 | Set the TNC/ MCP TX delay time to | – |
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| TNC/ MCP was incorrectly set. |
| more than 300 ms. |
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Attempts at | 1 | Problem with the cable that connects | 1 | Check the cable and cable | 76 |
controlling the |
| the PC to the |
| connections. |
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transceiver with the | 2 | Communication parameters set in your | 2 | Use the same parameters in the | 67 |
computer have |
| terminal program do not match the |
| terminal program and the transceiver. |
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failed. |
| transceiver parameters. |
| Check Menu No. 56. |
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