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TROUBLESHOOTING
Problem
No power.
No reception
Radio does not work
Volume too high or too
low when the radio is
turned on
LCD display is dark
and difficult to read
No WB function
Weather alert does not
function
NOTE: Proper care and cleaning is essential to optimal operation. The JHD910BT 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.
Table 1: Troubleshooting
Cause
Vehicle ignition switch is not
on.
The 3A fuse is blown.
Volume turned down too low.
Wiring not connected
properly.
Antenna cable not connected.
Preset volume is set
incorrectly
Radio too hot
Programmed to "European"
Weather alert programmed to
"off"
If the power supply is connected to
the vehicle accessory circuits but
the engine is not moving, switch
the ignition key to "ACC".
Replace the 3A fuse.
Adjust volume until sound is heard.
Check wiring connections.
Insert antenna cable firmly.
Use the Menu adjustment (page
three) to change preset volume to
desired level
Turn radio off and allow to cool
down
Program to "USA" (setup menu)
Program to "on" (setup menu)
12
JHD910BT
Corrective Action
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