6-6
●
Replacement procedure
(1) Remove the panel protective sheet.
(Follow the instructions on
■
Replacing the panel protective sheet (page
6-1)
.)
(2) Remove the display unit.
(Follow the instructions on
■
Replacing the display unit (page 6-3).
)
Handling Precautions
Be careful not to dirty or scratch the display unit, especially the touch
switches.
(3) Lift the battery and pull it off as shown below.
(4) Insert the new battery.
Fit it into the battery holder with the positive side up.
(5) Install the display unit.
(Follow the instructions on
■
Replacing the display unit (page 6-3).
)
Handling Precautions
Be careful not to dirty or scratch the display unit, especially the touch
switches.
(6) Attach the new panel protective sheet, and remove the thin plastic film on the
surface.
(Follow the instructions on
■
Replacing the panel protective sheet (page
6-1)
.)
Handling Precautions
• The surface of the touch switches is very sensitive and dirt and dust
cannot be removed. Be careful not to touch the surface, and protect it
from dirt and dust.
• The panel protective sheet that is once removed has no adhesive power.
Do not use it again, and replace with a new protective sheet.
• Make sure the panel protective sheet is properly attached as dirt on the
side of the adhesive will lower the power of the adhesive and make it
impossible to meet its specified drip-proof specifications.
• Protect the display unit from static, water, oil and dust, since it has a
precision printed wired board.
Do not touch the leads on the printed wired board and the printed wired
board surface.
• Do not put the display unit in a dusty place. In case the display unit is laid
with the touch switch side down, it should be laid on a soft surface without
dust and should be protected from oil and dust.
• When removing the battery, be careful not to be injured by the battery
holder, not to scratch the surroundings by it, and not to break the battery
holder itself.
Chapter 6. MAINTENANCE AND INSPECTION
