2.
MAINTENANCE, TROUBLE-
SHOOTING
2.1
Maintenance
Check the following points regularly to maintain performance:
• Check that connections on the rear panel are firmly tightened and free of dust.
• Check that the ground system is free of rust and the ground wire is tightly fastened.
• Remove dust or dirt from the cabinet with a soft, dry cloth. For stubborn dirt, you can use water-
diluted mild detergent. Clean the cabinet with a dry cloth after you use detergent. Do not use
solvents like thinner, acetone or benzene to clean the unit. They can remove paint and indica-
tions.
NOTICE
Do not apply paint, anti-corrosive
sealant or contact spray to coating
or plastic parts of the equipment.
Those items contain organic solvents
that can damage coating and plastic
parts, especially plastic connectors.
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