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5. Maintenance
5.1 Daily maintenance
The life of the device depends on how daily maintenance and inspection are performed carefully.
To keep the device in the best condition at all times, it is recommendable to perform periodical
inspections constantly. Any failure in the device can be prevented before it occurs through such
inspections.
Please perform the inspections shown in the table below periodically.
Maintenance and inspection methods
Caution: Be sure to turn off power before starting inspection of the device.
No. Item
1
Cleaning
2
Loosening of parts
3
Cable Unit
4
Fuses
Attention: When cleaning the surface, do not use any organic solvent such as thinner or
benzine. Otherwise, the painting on the surface may be damaged. For cleaning
the surface, remove the dust and refuse and wipe with clean dry cloth.
5.2 Troubleshooting for Malfunctions or Abnormalities
Contact our service center or agent when any of the following is observed:
• The display does not light up, the whole unit is not turned on after the power
switch has been set ON or when does not appear on the display.
• Smoking, burning odors or unusual heat is emitted by the unit.
When any of this happens, turn off the unit and pull out the power cable.
Then, contact our center or agent.
22
5. Maintenance
There are no customer-serviceable parts inside. Unauthorized inspections and repairs
could cause fires and electrical shock hazards.
Please call our field representative or your nearest JRC office for inspection and
repair services.
Maintenance and inspection
Remove stains from the panel face, controls, switches, top cover, and
bottom cover by wiping them lightly with dry cloth.
Thoroughly clean the ventilation hole, in particular, using a feather to
assure good flow of air.
Check screws, nuts, controls, switches, volume knobs, connectors,
etc. for any looseness to prevent them from dropping off and
retighten them correctly.
Inspect the state of connection of cables between units as well as
connectors so that they are connected correctly.
When the power fuse has blown, replace it after finding the cause.
Use a fuse sealed in a glass tube (included in the spare parts).
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