Kenwood TS-570D User Manual - Page 72

16 MAINTENANCE No signals are received or receive sensitivity seems poor. No signals are received or receive sensitivity seems poor; S-meter is reading full scale. Received signals are totally unintelligible. Memory Scan will not start scanning. Memory Scan will not scan one of the stored channels; the desired channel is NOT locked out. Program Scan will not start scanning. Tuning does not finish successfully. The internal tuner is bypassed immediately after tuning is started. You cannot transmit even though you press Mic [PTT] or transmissions result in no contacts. 1 The SQL control is fully clockwise. 2 The Attenuator function is ON. 3 [SEND] was pressed, and the transceiver is now in transmit mode. 4 Mic [PTT] is pressed. 5 The receive bandwidth was incorrectly set. 6 The wrong antenna connector (ANT 1/ANT 2) was selected. 7 The receive preamplifier is OFF. The RF control was set too low. The wrong modulation mode was selected. 1 The SQL control was not set correctly. 2 Less than two memory channels were unlocked. 3 Less than two memory channels were programmed. With Group Scan selected, the channel you want to scan is in a different group. The start and end frequencies are identical. The impedance of the coaxial cable and antenna was not matched. • Tuning does not successfully finish depending on conditions although the SWR meter indicates smaller than 3:1. The SWR of the antenna system is too high. 1 The microphone plug was not inserted completely into the MIC connector. 2 The Transmit Inhibit function is ON. 3 CW or FSK was selected instead of a voice mode. 4 The filter for digital operation was selected. 5 The wrong antenna connector (ANT 1/ANT 2) was selected. 1 Turn the SQL control 14 counterclockwise. 2 Press [ATT] to switch OFF function. 37 3 Press [SEND] to return to receive 15 mode. 4 Release Mic [PTT]. 5 Review sections "IF FILTER" and "CHANGING RECEIVE BANDWIDTH", and set the controls accordingly. 6 Press [ANT] to select the other antenna connector. 7 Press [PRE-AMP] to switch ON function. Turn the RF control fully clockwise. 15 36,37 48 37 13 Press [LSB/USB], [CW/FSK], or 14 [FM/AM] to select the correct modulation mode. 1 Adjust the SQL control to just 14 eliminate background noise. 2 Unlock at least two memory 44 channels. 3 Store data in at least two memory 39 channels. Select the group that contains the 47 memory channel you want to scan. Store different start and end 43 frequencies. Adjust the antenna system to lower the 1 SWR. Adjust the antenna system to lower the 52 SWR. 1 Turn OFF the power, ensure the MIC 3 connector has no foreign objects in it, then plug in the connector. Secure the connector with the locking ring. 2 Change Menu No. 38 to OFF. 18 3 Press [LSB/USB] or [FM/AM] to 14 select a voice mode. 4 Change Menu No. 32 to OFF. 18 5 Press [ANT] to select the other 48 antenna connector. 66