Display Section (Lcd Panel) - Mitsubishi MELDAS M600 Series Maintenance Manual

4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE

(3) Display section (LCD panel)

The display section's LCD panel is installed on the escutcheon side of the control section's
installation fitting.
a) Replacement procedures
Always replace the display section's LCD panel with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door.
③ Disconnect the backlight connection connector from the backlight power supply PCB. (Two
connectors on top and bottom)
④ Remove the control section installation fitting fixing screws (two screws on left top and
bottom), and open the control section installation fitting.
⑤ Disconnect the F091/092 cable from the CON1/2 connector at the left center of the LCD
panel.
⑥ Remove the four fixing screws fixing the LCD panel to the control section installation fitting,
and remove the LCD panel from the control section installation fitting. (Remove the two lower
fixing screws first, and then remove the two upper fixing screws while supporting the LCD
panel with a hand. Then remove the LCD panel.)
⑦ Replace with a new LCD panel, and fix the LCD panel to the control section installation fitting
with the installation screws.
⑧ Connect the F091/092 cable to the CON1/2 connector at the left center of the LCD panel.
(Connect the cables to the designated connectors.)
⑨ Close the control section installation fitting, and fix with the fixing screws (two screws on left
top and bottom).
⑩ Connect the backlight connection connector to the backlight power supply PCB.
⑪ Close the operation box door.
LCD panel
Backlight power supply PCB
Backlight connection connector
Fixing screws (4 screws)
CAUTION
Incorrect connections may damage the devices, so connect the cables to the specified
connectors.
Do not replace the display section (LCD panel) while the power is ON.
Do not connect or disconnect the connection cables between each unit while the power is ON.
4.3 Replacement Methods
Display section (rear)
Open
Fixing screws
Display section (rear)
F091 cable
Open
F092 cable
ＣＯＮ１
ＣＯＮ２
– 40 –
Control section installation fitting
Control panel
installation fitting
LCD panel
Backlight connection connector