Kenwood TS-480SAT, TS-480HX Press ATT/PRE/ ANT1/2 until ATT, Press ATT/PRE/ ANT1/2 1 s to

16 TROUBLESHOOTING

Problem	Probable Cause		Corrective Action	Page
				Ref.
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/PRE/ ANT1/2] until “ATT”	61
sensitivity seems			and “PRE” disappear.
poor.	3 Mic [PTT] is pressed.	3	Release Mic [PTT].	20
	4 The IF filter bandwidth was	4	Review “DSP FILTERS”, “CHANGING	45,
	incorrectly set.		THE IF FILTER BANDWIDTH” and set	46
			the controls accordingly.
	5 The wrong antenna connector	5	Press [ATT/PRE/ ANT1/2] (1 s) to
	(ANT 1 or ANT 2) was selected.		select the other antenna connector.	60
	6 The preamplifier is OFF.	6	Press [ATT/PRE/ ANT1/2] to switch
			the function ON.	49
No signals are	The RF gain was set too low.	Press [MIC/ 5/ RF.G] (1 s) and turn the		18
received or receive		MULTI control clockwise to increase the
sensitivity seems		RF gain.
poor; S-meter is
reading full scale.
Received signals	The wrong modulation mode was	Press [MODE] or [MODE] (1 s) to select		19
are totally	selected.	the correct modulation mode.
unintelligible.
Memory Scan will	1 The SQL control was not set	1 Adjust the SQL control to just eliminate		19
not start scanning.	correctly.		background noise.
	2 Less than 2 memory channels were	2 Unlock at least 2 memory channels.		54
	unlocked.
	3 Less than 2 memory channels were	3 Store data in at least 2 memory		50
	programmed.		channels.
Memory Scan will	With Group Scan selected, the channel	Select the Memory Group that contains		59
not scan one of the	you want to scan is in a different group.	the memory channel you want to scan.
stored channels; the
desired channel is
NOT locked out.
Program Scan will	The start and end frequencies are	Store different start and end frequencies.		53
not start scanning.	identical.
AT does not finish	The impedance of the coaxial cable and	Adjust the antenna system to lower the		60
successfully	antenna was not matched.	SWR.
(TS-480SAT or	Tuning does not successfully finish
TS-480HX with	depending on conditions although the
AT-300).	SWR meter indicates smaller than 3:1.
The internal tuner is	The SWR of the antenna system is too	Adjust the antenna system to lower the		60
bypassed	high.	SWR.
immediately after
tuning is started.
You cannot transmit	1 The microphone plug was not	1	Turn OFF the power, ensure the MIC	6
even though you	inserted completely into the MIC		connector has no foreign objects in it,
press Mic [PTT] or	connector.		then plug in the connector firmly.
transmissions result	2 The Transmit Inhibit function is ON.	2	Change Menu No. 55 to OFF.	38
in no contacts.	3 CW or FSK was selected instead of	3	Press [MODE] to select a voice mode.	19
	a voice mode.
	4 The DSP TX filter bandwidth was	4	Adjust the settings in Menu No. 20.	38
	inproperly selected.
	5 The wrong antenna connector	5	Press [ATT/PRE/ ANT1/2] (1 s) to	60
	(ANT 1 or ANT 2) was selected.		select the other antenna connector.

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