Kenwood TS-570D User Manual - Page 71

65

1

Switch ON the DC power supply.

2

Inspect the power cable.

Confirm

polarities are correct.

Red: positive (+); Black: negative (²)

3

Confirm the connections to the DC

power supply are secure.

4

Look for the cause of the blown fuse.

After inspecting and correcting any

problems, install a new fuse of the

specified rating.

1

Correct the input voltage or use a 12

to 16

V battery

.

2

Review ³MICROPROCESSOR

RESET´.

After understanding what

data will be lost, do a Partial Reset.

If the problem remains, do a Full

Reset.

Have a new battery installed by your

dealer or at a

KENWOOD

Service

Center.

1

Review ³WRITING CONVENTIONS

FOLLOWED´.

2

Press

[F.LOCK]

to switch OFF

function.

3

Review ³MICROPROCESSOR

RESET´.

After understanding what

data will be lost, do a Partial Reset.

If the problem remains, do a Full

Reset.

4

Stop operating the

Tuning

control,

then press the appropriate buttons.

Press

[F.LOCK]

to switch OFF function.

1

Change Menu No. 32 to OFF.

2

Turn the

DSP SLOPE (LOW)

control

counterclockwise and the

DSP

SLOPE (HIGH)

control clockwise.

3

Press

[N.R.]


4

Press

[B.C.]


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.

The transceiver will

not power up after

connecting a

13.8

V

DC power

supply and pressing

[

]

(POWER).

Nothing appears on

the display, and no

receiver noise is

heard.

After switching ON the

power, the transceiver

does not function

normally.

For

example, no digits or

incorrect digits appear

on the display.

After switching ON the

transceiver,

³14.000.00

MHz USB´

appears and all data

is lost; without doing

Full Reset.

The transceiver does

not respond correctly

after pressing button

or key combinations,

or turning controls per

instructions in this

manual.

Page

Ref.

13

2

2

2

2

48

39

i

48

48

7

48

Problem

Probable Cause

Corrective Action

1

DC power supply is OFF.

2

Faulty power cable

3

The power cable is not connected

securely.

4

Power cable fuse is open.

1

The input voltage is outside 13.8 V

DC

–

15% (11.7 to 15.8 V DC).

2

The microprocessor has

malfunctioned.

The backup lithium battery voltage is

too low.

1

Procedures are not being followed

precisely.

2

The Frequency Lock function is

ON.

3

The microprocessor and its

memory need resetting.

4

The buttons on the transceiver are

unavailable while operating the

Tuning

control.

The Frequency Lock function is ON.

1

The filter for digital operation is

selected.

2

The

DSP SLOPE (LOW)

control or

DSP SLOPE (HIGH)

control was

incorrectly set.

3

Noise Reduction 1 or 2 is ON.

4

Beat Cancel is ON.

The frequency

cannot be changed.

SSB audio quality is

very poor; the high

or low audio

frequencies are

absent.

18

37

38

38

Kenwood TS-570D User Manual - Page 71

Troubleshooting

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