Friday, 13 October 2017

Epson EB1985WU – EB1975 –EB1980WU – EB1970W – Air filter maintenance – How to replace the lamp – How to reset the lamp – Projector repair and service

Cleaning the Air Filter and Vents
Clean the projector's air filter or vents if they get dusty, or if you see a message telling you to clean them.
a. Turn off the projector and unplug the power cord.
b. Gently remove the dust using a small vacuum designed for computers or a very soft brush (such as a paintbrush).
c. If dust is difficult to remove or the air filter is damaged, replace the air filter.
Replacing the Air Filter
You need to replace the air filter in the following situations:
# After cleaning the air filter, you see a message telling you to clean or replace it.
# The air filter is torn or damaged.
You can replace the air filter while the projector is mounted to the ceiling or placed on a table.
a. Turn off the projector and unplug the power cord.
b. Slide the air filter cover latch and open the air filter cover
c. Pull the air filter out of the projector.
d. Place the new air filter in the projector as shown and push gently until it clicks into place.
e. Close the air filter cover.
Projector Lamp
The projector monitors the number of hours the lamp is used and displays this information in the projector's menu system.
Replace the lamp as soon as possible when the following occurs:
# The projected image gets darker or quality declines.
# A message appears when you turn on the projector telling you to replace the lamp. (message remains displayed for 30 seconds)
The projector's lamp light is flashing orange.
Replacing the Lamp
You can also replace the lamp while the projector is mounted to the ceiling.
Let the lamp fully cool before replacing it to avoid injury.
# Never disassemble or remodel the lamp. If a modified or disassembled lamp is installed in the projector, it could cause a fire, electric shock, or other damage or injury.
a. Turn off the projector and unplug the power cord.
b. Allow the projector lamp to cool down for at least one hour.When replacing the lamp, there is a possibility that the lamp may be broken. If replacing the lamp of a projector which has been installed on the ceiling, you should always assume that the lamp is cracked, and you should stand to the side of the lamp cover, not underneath it. Remove the lamp cover gently. Be careful when removing the lamp cover as shards of glass may fall out and could cause an injury. If any shards of glass get into your eyes or mouth, contact your local physician immediately.
c. Use the screwdriver included with the replacement lamp to loosen the screw securing the lamp cover.
d. Slide the lamp cover out and lift it off.
e. Loosen the screws securing the lamp to the projector. The screws do not come all the way out.
f. Lift up the lamp handle and carefully pull the lamp out of the projector.
g. Gently insert the new lamp into the projector. If it does not fit easily, make sure it is facing the right way. Press the handle down.
h. Push in the lamp firmly and tighten the screws to secure it.
i. Replace the lamp cover and tighten the screw to secure it.
Reset the lamp timer to zero to monitor the new lamp's usage.
Resetting the Lamp Timer
a. Turn on the projector.
b. Press the [Menu] button on the control panel or remote control.
c. Select the Reset menu and press [Enter].
d. Select Reset Lamp Hours and press [Enter].
e. Select Yes and press [Enter].
f. Press [Menu] or [Esc] to exit the menus.

LG 52LG50FD, 52LG50FD-SA-Service adjustments-service mode entry-white balance adjustment-ADC component 1 RGB adjustment and more

  These adjustments are similar to 42LB7DF Because this is not a hot chassis, it is not necessary to use an isolation transformer. However...