Panasonic CQ-VX777EUC - Manuel (Page 56)

Troubleshooting
□Troubleshooting Tips
continued
PROBLEM POSSIBLE CAUSE PROBABLE SOLUTION
Unit won’t turn on. Dead vehicle battery,
ignition not on.
Bad power line connection.
Fuse burned out.
Charge vehicle battery.
Turn ignition to On or Accessory.
Check connections.
Replace fuse.
Radio has static. Antenna not hooked up,
Close to high power lines. Hook up antenna.
Move away from high power lines.
Radio memory buttons
don’t work. Not holding buttons down long enough. Press and hold buttons for more than 2 sec­
onds.
No sound can be
heard even if the disc
is properly loaded.
The compact disc is inverted. Insert the disc with label side facing up.
The compact disc is very dirty. Try to clean the compact disc by instruc­
tions of disc cleaning.
The temperature inside the car is more than
140°F(60“C)
Give the interior a chance to cool down
before using the unit.
Excessive moisture. Wait for a while before using the unit.
Wiring connection is not properly done. Confirm alt wiring connection such as power
cord, speaker cords, etc.
Volume control is at ’‘minimum'’ position. Adjust the volume control to the proper
level.
Fuse of amplifier is blown out. Replace the fuse with the correct rating.
Sound distorted due to
vibration.
Installation method is bad. Fix the unit securely.
Inverter sound (Left/
Right connections.) The speaker cords are inverted. Check the speaker cords.
No sound from front or
rear speakers. The fader control is set on the wrong posi­
tion. Adjust the fader control of the unit correctly.
Sound distorted some­
times.
The compact disc may be defective. Try to replace the disc with another one.
The compact disc is dirty. Try to clean the compact disc by instruc­
tions of disc cleaning.
A compact disc is
sometimes ejected.
(Display shows “El”,
an error message.)
The pickup lens is dirty, Clean the lens. (Use CD tens cleaning disc.)
Tape sound quality is
poor.
Heads are dirty.
Poor quality tape.
Clean heads. (Ask a service representative
for advice.)
Use better quality tape.
Tape won’t change
programs.
Not pressing ►►(FF) and ■♦^(REW) but­
tons at the same time.
Press ►►(FF) and ■♦^(REW) buttons at the
same time.
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CQ-VX777EUC