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CONTROLS
TROUBLESHOOTING
Note: Proper care and cleaning is essential to optimal operation. The JHD910 may be cleaned
with mild detergent/water mixture and a soft cloth to remove grease and grime. Do not
pressure wash directly on the radio.
ACCESSORIES
Problem Cause Corrective Action
No power. Vehicle ignition switch is not
on.
If the power supply is
connected to the vehicle
accessory circuits but the
engine is not moving, switch
the ignition key to “ACC”.
The fuse is blown. Replace the fuse.
No reception Volume turned down too low. Adjust volume until sound is
heard.
Wiring not connected
properly.
Check wiring connections.
Radio does not work Antenna cable not connected. Insert antenna cable firmly.
Volume too high or too low
when the radio is turned on
Preset volume is set
incorrectly
Use the Menu adjustment
(page three) to change preset
volume to desired level
LCD display is dark and
difficult to read
Radio too hot Turn radio off and allow to
cool down
No WB function Programmed to “European” Program to “USA” (setup
menu)
Weather alert does not
function
Weather alert programmed to
“off”
Program to “on” (setup menu)