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6-8
●
Mounting the display unit
(1) Insert the tail tip of the new touch switch till it hits the connector CN3. Push
back the connector to the original position. Now the tail is secured.
Bend the tail backwards, so that it will not be pinched by the panels when
assembling.
Handling Precautions
Be sure to insert the tail and latch the connector completely. Otherwise,
the touch switches may not respond correctly.
(2) Secure the new touch switch panel by the screws.
(3) 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.
(4) 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 touch switch is made of glass. Make sure not to drop it and not to
touch the end face.
• The surface of the touch switches is very sensitive and the dirt and dust
cannot be removed. Be careful not to touch the surface, and protect it
from dirt and dust.
• The surface of the LCD unit 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.
Chapter 6. MAINTENANCE AND INSPECTION