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11
Troubleshooting Guide
What might seem to be a malfunction in your unit
may just be the result of slight misoperation or
miswiring. Before calling service, first check the
following table for possible problems.
? The power does not turn on.
✔ The fuse has blown.
☞ After checking for short circuits in the wires,
replace the fuse with one having the same
rating.
✔ No ACC position on vehicle ignition.
☞ Connect the same wire to the ignition as the
battery wire.
? Nothing happens when the buttons are pressed.
✔ The computer chip in the unit is not functioning
normally.
☞ Press the reset button on the unit (page 3).
? The screen is dark.
✔ The unit is in a location where temperature is low.
☞ If the temperature of the monitor unit drops,
the screen may appear darker when power is
first turned on due to the characteristics of a
liquid crystal panel. Wait a while after turning
power on for the temperature to rise. Normal
brightness will return.
? No sound from wireless headphones.
✔ IR Headphones setting is "Off".
☞ Turn it "On" (page 6).
✔ The frequency setting is not set correctly.
☞ Select the transmitter frequency according to
your headphones.
✔ The headphones power is off.
☞ The headphones power switch is turned on.
✔ The headphones batteries are exhausted.
☞ Replace the headphones batteries with fresh
ones.
Removing the Monitor Unit
1
Insert the removal tool (Accessory 6) deeply
into the slots on each side, as shown.
Accessory 6
2 Pull the monitor unit all the way out with your
hands, being careful not to drop it.