10
SECURITY
BEFORE OPERATION
• Before operation, check if the voltage of the unit is in line with the local voltage.
• Hold the plug to disconnect it from the mains outlet. Do not pull the power cord.
• When the plug of the unit is connected to the mains outlet , the unit will be still
connected to AC even if the power is turned off.
• Disconnect the plug as soon as liquid or objects enter the unit. The unit can not
be used until being checked by experts.
• Do not open the cabinet as laser rays employed by the unit may damage eyes.
Any servicing should be done by qualified service personnel.
PLACEMENT
• Put the unit where ventilation is good enough to prevent overheating.
• Never put the unit in direct sunlight or near heat sources.
• Put the unit horizontally, never put any heavy object on the unit.
• To protect the pickup, do not put the unit where there is dust. If there is dust
on the pickup, use a cleaning disc to clean it. Paying particular attention to the
operating instructions of the cleaning disc.
CONDENSATION
Moisture will appear on the pickup lens in the following cases:
• The unit is suddenly moved from a cold place to a warm place.
• The unit is put in a room with a heater, or in cold air from an air-conditioner.
• Using the unit in a humid place. In these cases, the unit can not work. Unload the
disc and leave the unit on for about one hour to evaporate the moisture.
CLEANING
• Use a soft cloth with a little neutral detergent to wipe the cabinet, panel and
controls.
Never use abrasive paper, polishing powder, solvent like alcohol or gasoline.
Содержание DVG-5200S
Страница 1: ...SERVICE MANUAL DVG 5200S DVG 8300SE ...
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Страница 58: ...KARAOKE SCHEMATIC CIRCUIT DIAGRAM 3 11 ...