JRC JAN-701B -, Instruction Manual

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10 Maintenance and Inspection 10-4
10.2 Daily Maintenance
The service life of the unit is greatly affected by how well it is maintained and inspected during daily
maintenance. To ensure that the unit is kept in optimum condition, we recommend that you inspect it
daily. This also prevents the unit from malfunctioning.
Inspect the unit according to the items indicated in the table below.
Maintenance and Inspection Method
No. Item Inspection Item
1 Cleaning • Wipe off any dirt from the monitor display lightly with a soft, dry cloth.
• Wipe off any dirt on the main unit case lightly with a dry cloth. In
particular, wipe air vents carefully with a brush to improve air circulation.
2 Inspection • Turn the [BRILLIANCE] knob CW on the monitor to make sure that the
brightness of the monitor increases.
• Turn the [BRILLIANCE] knob CCW on the monitor to make sure that
the brightness of the monitor increases.
• Make sure that the trackball operates smoothly.
• Press the [EBL] and [VRM] dials on the operation panel to make sure
that dials operate smoothly.
• Press the [PANEL] key on the operation panel to make sure that the
lighting on the panel changes correctly.
• Select [Color Pattern] to display the color test pattern, and adjust the
brightness/contrast. Also make sure that the necessary colors come
out on the monitor.
• Select [Gray Scale] to display the gray scale pattern, and make sure that
the gray scale is displayed correctly.