3.MAINTENANCE & TROUBLESHOOTING
This chapter provides information necessary for keeping your unit in good working order and remedying simple problems.
WARNING
Do not open the equipment.
Hazardous voltage which can cause electrical shock exists inside the equipment. Only qualified personnel should work inside the equipment.
3.1Maintenance
Regular maintenance is important for optimum performance. A maintenance program should be established and should at least include the items shown in the table below.
Maintenance program
Item | Check point | Remedy |
|
|
|
Display unit connectors | Check for tight connection. | Tighten loosened connectors. |
|
|
|
LCD | The LCD will, in time, | Wipe the LCD carefully to |
| accumulate a coating of dust | prevent scratching, using |
| which tends to dim the picture. | tissue paper and an LCD |
| Wipe LCD lightly with soft | cleaner. To remove dirt or salt |
| cloth to remove dust. | deposits, use an LCD cleaner, |
|
| wiping slowly with tissue |
|
| paper so as to dissolve the dirt |
|
| or salt. Change paper |
|
| frequently so the salt or dirt |
|
| will not scratch the LCD. Do |
|
| not use solvents such as |
|
| thinner, acetone or benzene |
|
| for cleaning. |
|
|
|
Ground terminal | Check for tight connection and | Clean or replace ground wire |
| corrosion. | as necessary. |
|
|
|