65
1Switch ON the DC power supply.
2Inspect the power cable. Confirm
polarities are correct.
Red: positive (+); Black: negative (–)
3Confirm the connections to the DC
power supply are secure.
4Look for the cause of the blown fuse.
After inspecting and correcting any
problems, install a new fuse of the
specified rating.
1Correct the input voltage or use a 12
to 16V battery.
2Review “MICROPROCESSOR
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.
1Review “WRITING CONVENTIONS
FOLLOWED”.
2Press [F.LOCK] to switch OFF
function.
3Review “MICROPROCESSOR
RESET”. After understanding what
data will be lost, do a Partial Reset.
If the problem remains, do a Full
Reset.
4Stop operating the Tuning control,
then press the appropriate buttons.
Press [F.LOCK] to switch OFF function.
1Change Menu No. 32 to OFF.
2Turn the DSP SLOPE (LOW) control
counterclockwise and the DSP
SLOPE (HIGH) control clockwise.
3Press [N.R.] to switch OFF function.
4Press [B.C.] to switch OFF function.
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,
“14.000.00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
1DC power supply is OFF.
2Faulty power cable
3The power cable is not connected
securely.
4Power cable fuse is open.
1The input voltage is outside 13.8 V
DC ±15% (11.7 to 15.8 V DC).
2The microprocessor has
malfunctioned.
The backup lithium battery voltage is
too low.
1Procedures are not being followed
precisely.
2The Frequency Lock function is
ON.
3The microprocessor and its
memory need resetting.
4The buttons on the transceiver are
unavailable while operating the
Tuning control.
The Frequency Lock function is ON.
1The filter for digital operation is
selected.
2The DSP SLOPE (LOW) control or
DSP SLOPE (HIGH) control was
incorrectly set.
3Noise Reduction 1 or 2 is ON.
4Beat 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