Panasonic BT-4LH310 User Manual

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If for any reason an error occurs in the unit, the following is displayed to notify of the error or warning.

The [LOW VOLTAGE] indication in blue 

flashes on the screen.

This means that the external DC power 

supply input voltage has dropped to less 

than approximately 22.0 V.

When the unit is powered down, connect an external 

DC power supply providing 23.4 V or more and then 

turn the POWER switch on.

The [LOW VOLTAGE] indication lights red 

on the screen and the power is turned off 

approximately 10 seconds later.

This means that the external DC power 

supply input voltage has dropped below 

approximately 21.5 V.

• Gently wipe off any dirt on the cabinet and LCD panel with a soft cloth. To remove stubborn dirt, use a cloth that has been damp-

ened in a weak neutral detergent solution and thoroughly wrung out and then wipe the unit with a dry cloth. Any moisture entering 

the unit may damage it.

• Never use alcohol, benzene, thinner, chemically-treated cloth, etc. to clean the unit.

The surface may become discolored and the paint may peel off.

• Do not directly expose the unit to spray cleaner or the like. Any moisture entering the unit could damage it.