Kenwood TS-570D, TS-570S Troubleshooting, Problem Probable Cause Corrective Action, Followed

16 MAINTENANCE

TROUBLESHOOTING

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:

◆Due to frequency relationships of some circuits in this transceiver, beat tones may be heard on the following frequencies: 10.000 MHz, 20.000 MHz and 30.000 MHz. This is not a fault.

◆Placing a powered handy transceiver near this transceiver may cause noise in this transceiver.

Problem		Probable Cause		Corrective Action	Page
					Ref.
The transceiver will	1	DC power supply is OFF.	1	Switch ON the DC power supply.	13
not power up after	2	Faulty power cable	2	Inspect the power cable. Confirm	2
connecting a				polarities are correct.
13.8 V DC power				Red: positive (+); Black: negative (–)
supply and pressing
	3	The power cable is not connected	3	Confirm the connections to the DC	2
[POWER]. Nothing
appears on the	4	securely.	4	power supply are secure.
display, and no		Power cable fuse is open.		Look for the cause of the blown fuse.	2
receiver noise is				After inspecting and correcting any
heard.				problems, install a new fuse of the
				specified rating.
After switching ON the	1	The input voltage is outside 13.8 V	1	Correct the input voltage or use a 12	2
power, the transceiver		DC ±15% (11.7 to 15.8 V DC).		to 16 V battery.
does not function	2	The microprocessor has	2	Review “MICROPROCESSOR	48
normally. For		malfunctioned.		RESET”. After understanding what
example, no digits or				data will be lost, do a Partial Reset.
incorrect digits appear
				If the problem remains, do a Full
on the display.
				Reset.
After switching ON the	The backup lithium battery voltage is		Have a new battery installed by your		39
transceiver,	too low.		dealer or at a KENWOOD Service
“14.000.00 MHz USB”			Center.
appears and all data
is lost; without doing
Full Reset.
The transceiver does	1	Procedures are not being followed	1	Review “WRITING CONVENTIONS	i
not respond correctly		precisely.		FOLLOWED”.
after pressing button	2	The Frequency Lock function is	2	Press [F.LOCK] to switch OFF	48
or key combinations,		ON.		function.
or turning controls per
	3	The microprocessor and its	3	Review “MICROPROCESSOR	48
instructions in this
		memory need resetting.		RESET”. After understanding what
manual.
				data will be lost, do a Partial Reset.
				If the problem remains, do a Full
				Reset.
	4	The buttons on the transceiver are	4	Stop operating the Tuning control,	7
		unavailable while operating the		then press the appropriate buttons.
		Tuning control.
The frequency	The Frequency Lock function is ON.		Press [F.LOCK] to switch OFF function.		48
cannot be changed.
SSB audio quality is	1	The filter for digital operation is	1	Change Menu No. 32 to OFF.	18
very poor; the high		selected.
or low audio	2	The DSP SLOPE (LOW) control or	2	Turn the DSP SLOPE (LOW) control	37
frequencies are		DSP SLOPE (HIGH) control was		counterclockwise and the DSP
absent.		incorrectly set.		SLOPE (HIGH) control clockwise.
	3	Noise Reduction 1 or 2 is ON.	3	Press [N.R.] to switch OFF function.	38
	4	Beat Cancel is ON.	4	Press [B.C.] to switch OFF function.	38

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