16 MAINTENANCE
No signals are | 1 | The SQL control is fully clockwise. | 1 | Turn the SQL control | 14 |
received or receive |
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| counterclockwise. |
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sensitivity seems | 2 | The Attenuator function is ON. | 2 | Press [ATT] to switch OFF function. | 37 |
poor. | 3 | [SEND] was pressed, and the | 3 | Press [SEND] to return to receive | 15 |
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| transceiver is now in transmit |
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| mode. |
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| 4 | Mic [PTT] is pressed. | 4 | Release Mic [PTT]. | 15 |
| 5 | The receive bandwidth was | 5 | Review sections “IF FILTER” and | 36,37 |
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| incorrectly set. |
| “CHANGING RECEIVE |
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| BANDWIDTH”, and set the controls |
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| accordingly. |
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| 6 | The wrong antenna connector | 6 | Press [ANT] to select the other | 48 |
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| (ANT 1/ANT 2) was selected. |
| antenna connector. |
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| 7 | The receive preamplifier is OFF. | 7 | Press | 37 |
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| function. |
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No signals are | The RF control was set too low. | Turn the RF control fully clockwise. | 13 | ||
received or receive |
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sensitivity seems |
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poor; |
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reading full scale. |
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Received signals are | The wrong modulation mode was | Press [LSB/USB], [CW/FSK], or | 14 | ||
totally unintelligible. | selected. | [FM/AM] to select the correct |
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| modulation mode. |
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Memory Scan will not | 1 | The SQL control was not set | 1 | Adjust the SQL control to just | 14 |
start scanning. |
| correctly. |
| eliminate background noise. |
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| 2 | Less than two memory channels | 2 | Unlock at least two memory | 44 |
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| were unlocked. |
| channels. |
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| 3 | Less than two memory channels | 3 | Store data in at least two memory | 39 |
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| were programmed. |
| channels. |
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Memory Scan will not | With Group Scan selected, the | Select the group that contains the | 47 | ||
scan one of the | channel you want to scan is in a | memory channel you want to scan. |
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stored channels; the | different group. |
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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 | 43 | ||
not start scanning. | identical. | frequencies. |
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Tuning does not | The impedance of the coaxial cable | Adjust the antenna system to lower the | 1 | ||
finish successfully. | and antenna was not matched. | SWR. |
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| • | Tuning does not successfully finish |
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| depending on conditions although |
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| the SWR meter indicates smaller |
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| 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 | 52 | ||
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 |
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press Mic [PTT] or |
| connector. |
| it, then plug in the connector. |
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transmissions result |
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| Secure the connector with the |
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in no contacts. |
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| locking ring. |
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| 2 | The Transmit Inhibit function is ON. | 2 | Change Menu No. 38 to OFF. | 18 |
| 3 | CW or FSK was selected instead of | 3 | Press [LSB/USB] or [FM/AM] to | 14 |
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| a voice mode. |
| select a voice mode. |
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| 4 | The filter for digital operation was | 4 | Change Menu No. 32 to OFF. | 18 |
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| selected. |
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| 5 | The wrong antenna connector | 5 | Press [ANT] to select the other | 48 |
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| (ANT 1/ANT 2) was selected. |
| antenna connector. |
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