Troubleshooting (continued), Troubleshooting tips, Problem – Panasonic CQ-MRX777EUC Manuel d'utilisation
Page 58: Troubleshooting, Power, General
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Troubleshooting
(continued)
Troubleshooting Tips
Power
Problem
Possible Cause
Probable Solution
Dead vehicle battery.
Ignition not on.
Charge vehicle battery.
Turn ignition to On or Acc.
Bad each line connection.
Check connections.
Bad power battery line
connection.
Connect battery cables to terminals that are
always live.
Bad Accessory line
connection.
Connect accessory power cord with ACC power
supply of the car.
Fuse burned out.
Replace it with one of the specified rating.
Unit won’t turn on.
General
Problem
Possible Cause
Probable Solution
Dead vehicle battery.
Ignition not on.
Turn ignition to On or Acc.
Power is not on.
Press PWR button to switch power on before
making adjustment.
Volume is too low.
Raise volume.
Bad each line connection.
Check connections.
No Sounds
Bad power battery line
connection.
Connect battery cables to terminals that are
always live.
Bad Accessory line
connection.
Check connections.
Bad Ground line
connection.
Connect grounding wire to a metal part of car.
Bad Speaker line
connection.
Check connections.
Bad NAVI MUTE line
connection.
Leave the illumination cord unconnected.
Condensation
Wait for some time before use.
No operation by pressing
buttons
Spectrum analyzer display
is in demo mode.
Select other than demo mode before operating.
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CQ-MRX777EUC