Tuesday, May 10, 2016

Mitsubishi Electric WL7200U – LCD PROJECTOR – How to replace the lamp – How to reset the lamp hour Timer - How to Replace the roller filter – Roller filter counter reset – Projector repair and service

Mitsubishi Electric WL7200U

How to replace the lamp 
1. Unplug the power cord.
2. Loosen two screws (a) that are securing the lamp cover using a Philips screwdriver and remove the lamp cover (b) from the projector.
3. Loosen two screws (c) that are securing the lamp box to be removed using a Philips screwdriver.
4. Pull out the lamp box by the handle while holding the projector.
# Pull the lamp box out of the projector slowly. When the lamp is broken, glass fragments may be scattering by quickly pulling out the lamp box.
# Do not spill liquid on the removed lamp box or do not place it near any flammable object or where children can reach to prevent injury or fire.
5. Load a new lamp box securely into the projector in the right orientation.
6. Tighten two screws (c) of the new lamp box tightly using a Philips screwdriver.
# Make sure that the screws are tightened firmly.
7. Insert the lamp cover (b) into the projector and tighten two screws (a) on the lamp cover firmly using a Philips screwdriver.
# You cannot turn on the projector without attaching the lamp cover.
Reset of the lamp operation time
Plug in the power cord and reset the lamp operation time by holding down the LEFT,RIGHT, and POWER buttons on the control panel at the same time about 3 seconds.
Important:
# Unless these 3 buttons are pressed at the same time, the lamp operation time isn’t reset.
# Make sure that the STATUS indicator blinks twice and the lamp operation time is reset successfully.
# The projector doesn’t turn on if the lamp cover isn’t attached securely.
# Be sure to reset the lamp operation time whenever you replace the lamp.
# Do not reset the lamp operation time unless you replace the lamp.
# The lamp is fragile. If it is broken, be careful not to cut yourself with glass fragments.
Cleaning of the projector and the ventilation slots
Use a soft cloth to clean the projector and the ventilation grilles. When the grilles become dirty, wipe them with a soft
cloth dampened with diluted mild detergent, and then wipe them with a dry cloth.
# Clean the inside of the terminal cover frequently as dust is apt to be collected.
To protect the surface of the projector from fading or deteriorating:
# Do not spray insecticide on or inside the projector.
# Do not use benzine or thinner to clean it.
# Do not let rubber or plastic materials contact with projector.
Cleaning of the lens
Use a standard lens-cleaning brush or a piece of lens tissue dampened with lens cleaning fluid. The lens surface is
fragile. Use only recommended, nonabrasive lens-cleaning materials. Do not touch the lens with your fingers.
Roll-up filter
Setting the roll interval
You can set the roll interval of the roll-up filter using the menu.
1. Display the FEATURE menu.
2. Select FILTER MENU by pressing the UP or DOWN button.
3. Press the ENTER button.
4. Select AUTO ROLL UP PERIOD by pressing the UP or DOWN button.
5. Select OFF, EVERY 500H, EVERY 750H or EVERY 1000H by pressing the RIGHT or LEFT button.
OFF.................The filter does not roll automatically. Roll the filter manually when the filter is clogged.
EVERY 500H...The filter rolls about every 500 hours.
EVERY 750H...The filter rolls about every 750 hours.
EVERY 1000H..The filter rolls about every 1000 hours.
Important:
If you select the interval which is shorter than the current filter usage time, the filter rolls once after 1 minute.
The manual roll-up
1. Display the FEATURE menu.
2. Select FILTER MENU by pressing the UP or DOWN button.
3. Press the ENTER button.
4. Select MANUAL ROLL UP by pressing the UP or DOWN button.
5. Press the ENTER button.
Confirmation dialog appears.
6. Press the ENTER button or MENU button.
When you press the ENTER button, the filter rolls once.
To cancel the setting, press the MENU button.
How to replace the roll-up filter
When the filter rolls 9 times, the FILTER indicator blinks red. In this case, prepare a new filter cartridge. When the last filter is clogged, replace the filter cartridge. Before replacing the filter, be sure to turn off the power of the projector and unplug the power cord from the outlet.
1. Unplug the power cord.
2. Loosen two screws (a) that is securing the filter cover using a Philips screwdriver and remove the filter cover (b) from the projector.
3. Remove the roll-up filter cartridge.
5. Insert the filter cover (b) into the projector and tighten two screws (a) on the filter cover firmly using a Philips screwdriver
Reset of the roll counter of the filter
Plug in the power cord and reset the roll counter of the filter (REMAINING FILTERS and FILTER USAGE TIME) by holding down the LEFT, RIGHT and ENTER/GEOMETRY buttons on the control panel at the same time about 3 seconds.
Important:
# Unless these 3 buttons are pressed at the same time, the counter isn’t reset.
# Make sure that the FILTER indicator blinks 3 times and the counter is reset successfully.
# The projector doesn’t turn on if the filter cartridge or the filter cover isn’t attached securely.
# Do not reset the counter unless you replace the filter cartridge.