Chapter 6. MAINTENANCE AND INSPECTION
6 - 1 Maintenance
6-1
Regular or daily inspection will ensure a long service life for your Smart Terminal.
The order of the replacements is as follows:
The model No. of the replacement parts are listed on
1-1 Model Numbers (page 1-1)
.
Handling Precautions
• Maintenance should not be done by a person who does not have
experience in handling or assembling electronic equipment.
• Replacement of parts requires close attention. Be careful not to lose or
damage disassembled parts like screws.
■
Replacing the panel protective sheet
Replace the panel protective sheet when it becomes dirty or scratched.
This replacement can be performed when the
EST
is mounted in a control panel or
other equipment.
●
Required items
•
New panel protective sheet
•
Small flat-head screwdriver
CAUTION
Be sure to turn off the power before the maintenance and inspection of the
EST.
Otherwise, electric shock hazard can be caused.
Do not touch the leads of IC and other electronic parts and the PWB patterns
with bare hand. Internal electric devices can be damaged by static electricity.
The use of antistatic work benches are highly recommended.
The display unit is made of sheet metal.
Be careful not to be injured by the sharp edges.
