Compliance Of Safe Repair; Cautions During Disassembling And Assembling; Lamp; Lens - Optoma EX774 Serivce Manual

Be sure to read this Service Manual before providing services. In the projector, full consideration
is taken to ensure the safety for a fire, electric shock, injury, harmful radiation, and substance.
Therefore, observe the notice described in this Service Manual so that the safety is kept when
providing services. Moreover, be sure to observe the notice described in the Instruction Manual.
Pay attention to the following during service inspection.

1-1. Cautions during disassembling and assembling

1. This equipment contains parts under high voltage. When making repairs, etc. Be sure to
pull out the power plug beforehand to insure safety.
2. Parts may be very hot immediately after use. Make sure the equipment has cooled off
sufficiently before carrying out repairs.
3. Make sure that parts and screws and wiring, etc. are returned to their original positions.
Tube, tape and other insulation materials have been used for safety reasons. The internal
wiring has been designed to avoid direct contact with hot parts or parts under high voltage
when using clamps or other tools.
4. The parts used in this device have special safety features such as flame-resistance and
anti-voltage properties. When replacing parts, always use parts supplied from the factory.
5. After finishing operations make sure that all parts and wires have been returned to their
original position and that there has been no deterioration of the area around the location
that was worked on.
6. Be sure to use an earth band (wrist band) during repair and inspection.

1-2. Lamp

During current conduction, the lamp is in the high-temperature state. In this case, pay careful
attention because a high voltage is used. When replacing a lamp, replace it after confirming
that the lamp has gotten cold sufficiently.

1-3. Lens

Do not look through a lens during projection. This damages your eyes.
Company Confidential

1. COMPLIANCE OF SAFE REPAIR

Optoma_______________________
4
Rev. 00
Delta____________
2008/07/02