Kenwood TS-590S 7528%/6+227,1, Problem Probable Cause Corrective Action, Followed

7528%/(6+227,1*

7528%/(6+227,1*

The problems described in this table are commonly encountered operational malfunctions. These types of difficulties are usually caused by improper hook-up, accidental incorrect control settings, or operator error due to incomplete programming. These problems are usually not caused by circuit failure. Please review this table and the appropriate section(s) of this instruction manual before assuming your transceiver is defective.

Note: Placing a powered portable transceiver near this transceiver may cause noise in the transceiver.

Problem			Probable Cause		Corrective Action	Page
The transceiver will		1	DC power supply is OFF.	1	Switch the DC power supply ON.	10
not power up after		2	Faulty power cable.	2	Inspect the power cable. Confirm that the	1
connecting a 13.8 V					polarities are correct (Red: positive (+); Black;
DC power supply and					negative (–)).	1
pressing [	].	3	The power cable is not	3	Confirm the connections to the DC power
Nothing appears			connected securely.		supply are secure.	2
on the display and		4	The power cable fuse is	4	Look for the cause of the blown fuse. After
no receiver noise is			open.		inspecting and correcting any problems,
heard.					install a new fuse of the specified rating.
After switching		1	The input voltage is outside	1	Correct the input voltage or use a 12 ~ 16 V	1
the power ON, the			13.8 V DC ±15% (11.7 ~		battery.
transceiver does not			15.8 V DC)
function normally. For		2	The microprocessor has	2	Review “MICROPROCESSOR RESET”.	78
example, no digits or			malfunctioned.		After understanding what data will be lost, do
incorrect digits appear					a VFO Reset. If the problem remains, do a
on the display.					Full Reset.
After switching the		The current rating of the DC		Use a DC power supply that has a 20.5 A or		1
transceiver ON, the		power supply is too low.		higher current rating
transceiver refuses to
transmit.
The transceiver does		1	Procedures are not being	1	Review “WRITING CONVENTIONS	ii
not respond correctly			followed precisely.		FOLLOWED”.
after pressing key		2	The Frequency Lock	2	Press and hold [FINE (F.LOCK)] to switch	53
combinations or			function is ON.		the function OFF. The “ ” icon disappears.
turning controls per		3	The microprocessor and its	3	Review “MICROPROCESSOR RESET”.	78
instructions in this			memory need to be reset.		After understanding what data will be lost, do
manual.					a Partial Reset. If the problem remains, do a
					Full Reset.
The frequency cannot		The Frequency Lock function		Press and hold [FINE (F.LOCK)] to switch the		53
be changed.		is ON.		function OFF. The “ ” icon disappears.
SSB audio quality is		1	The wrong operation mode	1	Select USB or LSB for the mode.	11
very poor; the high or			is selected for the receiver.
low audio frequencies		2	The IF filter is incorrectly	2	Turn the HI/SHIFT or LO/WIDTH control to	38
are absent.			set.		adjust the DSP filter width.
		3	Noise Reduction 1 or 2 is	3	Press [NR (LEV)] until the NR function turns	39
			ON.		OFF.
		4	Beat Cancel 1 or 2 is ON.	4	Press [BC (A.NOTCH)] until the BC function	39
					turns OFF.
No signals are		1	The SQL control is fully	1	Turn the SQL control counterclockwise.	12
received or receive			clockwise.		Press [ATT (RX ANT)] to switch the
sensitivity seems		2	The Attenuator is ON.	2		40
poor.		3	MIC [PTT] is pressed.		Attenuator is OFF.
				3	Release MIC [PTT].	13
		4	The IF filter bandwidth was	4	Review “DSP FILTERS”, and set the	38
			incorrectly set.		controls accordingly.
		5	The wrong antenna	5	Press and hold [PRE (ANT 1/2)] to select the	50
			connector (ANT 1 or ANT		other antenna connector.
			2) was selected.		Press [PRE (ANT 1/2)] to switch the function
		6	The pre-amplifier is OFF.	6		40
					ON.
		7	An internal DSP error	7	Restart the transceiver by turning the power	—
			occurs.		OFF and then back ON. If the problem
					persists, consult Kenwood authorized
					Service Center.

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