18 TROUBLESHOOTING
Problem | Probable Cause | Corrective Action | Page | |
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No signals are | 1 The SQL control is fully clockwise. | 1 Turn the SQL control counterclockwise. | 19 | |
received or receive | 2 The Attenuator function is ON. | 2 Press [ATT/ F LOCK] to switch the | 57 | |
sensitivity seems |
| function OFF. |
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poor. | 3 [SEND] was pressed, and the | 3 Press [SEND] to return to receive | – | |
| transceiver is now in transmit mode. | mode. Or release Mic [PTT]. |
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| Or, Mic [PTT] is pressed. |
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| 4 The receive bandwidth was | 4 Review “DSP FILTERS” and | 55 | |
| incorrectly set. | “CHANGING THE RECEIVE FILTER |
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| BANDWIDTH”, and set the controls |
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| accordingly. | 72 | |
| 5 The wrong antenna connector | 5 Press [FUNC], [AT/ ANT1/2] to select |
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| (ANT 1 or ANT 2) was selected. | the other antenna connector. | 57 | |
| 6 The receive preamplifier is OFF. | 6 Press [PRE/ LOCK A] to switch the |
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| function ON. |
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No signals are | The RF control was set too low. | Turn the MAIN RF GAIN control fully | 18 | |
received or receive |
| clockwise. |
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sensitivity seems |
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poor; |
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reading full scale. |
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Received signals | The wrong modulation mode was | Press [LSB/ USB/ AUTO], | 19 | |
are totally | selected. | [CW/ FSK/ REV], or [FM/ AM/ NAR] to |
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unintelligible. |
| select the correct modulation mode. |
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Memory Scan will | 1 The SQL control was not set | 1 Adjust the SQL controls to just | 19,46 | |
not start scanning. | correctly. | eliminate background noise. |
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| 2 Less than two memory channels | 2 Unlock at least two memory channels. | 68 | |
| were unlocked. |
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| 3 Less than two memory channels | 3 Store data in at least two memory | 68 | |
| were programmed. | channels. |
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| 4 The SQL control was not set | 4 Adjust the SQL controls. | 19,46 | |
| correctly. |
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Memory Scan will | With Group Scan selected, the channel | Select the group that contains the memory | 69 | |
not scan one of the | you want to scan is in a different group. | channel you want to scan. |
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stored channels; the |
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desired channel is |
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NOT locked out. |
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Program Scan will | The start and end frequencies are | Store different start and end frequencies. | 62 | |
not start scanning. | identical. |
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Tuning does not | The impedance of the coaxial cable and | Adjust the antenna system to lower the | 1 | |
finish successfully. | antenna was not matched. | SWR. |
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| Tuning does not successfully finish |
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| depending on conditions although the |
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| SWR meter indicates smaller than 3:1. |
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The internal tuner is | The SWR of the antenna system is too | Adjust the antenna system to lower the | 1 | |
bypassed | high. | SWR. |
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immediately after |
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tuning is started. |
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You cannot transmit | 1 The microphone plug was not | 1 Turn OFF the power, ensure the MIC | 3 | |
even though you | inserted completely into the MIC | connector has no foreign objects in it, |
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press Mic [PTT] or | connector. | then plug in the connector firmly. |
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transmissions result | 2 The Transmit Inhibit function is ON. | 2 Change Menu No. 54 to OFF. | 41 | |
in no contacts. | 3 CW or FSK was selected instead of | 3 Press [LSB/ USB/ AUTO] or | 19 | |
| a voice mode. | [FM/ AM/ NAR] to select a voice mode. |
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| 4 The DSP TX filter bandwidth was | 4 Adjust the settings in Menu No. 22. | 41 | |
| inproperly selected. |
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| 5 The wrong antenna connector | 5 Press [FUNC], [AT/ ANT1/2] to select | 72 | |
| (ANT 1 or ANT 2) was selected. | the other antenna connector. |
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