Steady light

No light

Appendices

The projector stops responding to all controls

If possible, turn off the projector, then unplug the power cord and wait at least 60 seconds before reconnecting power.

Check that “Keypad Lock” is not activated by trying to control the projector with the remote control.

Lamp burns out or makes a popping sound

When the lamp reaches its end of life, it will burn out and may make a loud popping sound. If this happens, the projector will not turn on until the lamp module has been replaced. To replace the lamp, follow the procedures in the “Replacing the Lamp” section on pages 57-58.

LED lighting message

Message

POWER LED

Temp LED

Lamp LED 1

Lamp LED 2

(Red/Blue)

(Red)

(Amber)

(Amber)

 

Standby State

 

 

 

 

(Input power cord &

Flashing Red

 

 

 

Switch on)

 

 

 

 

Power on (Warm-

Flashing

 

 

 

ing)

Blue

 

 

 

Lamp lighting

Blue

 

 

 

Power off (Cooling)

Flashing

 

 

 

Blue

 

 

 

 

 

 

 

Error (Lamp 1 fail)

Flashing

 

 

 

Red

 

 

 

 

 

 

 

Error (Lamp 2 fail)

Flashing

 

 

 

Red

 

 

 

 

 

 

 

Error (Fan fail)

Flashing

Flashing

 

 

Red

 

 

 

 

 

 

Error (Over Temp.)

Flashing

 

 

 

Red

 

 

 

 

 

 

 

Error (Lens shift)

Flashing

 

 

 

Red

 

 

 

 

 

 

 

55English

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Image 55
Optoma Technology TH7500NL manual Projector stops responding to all controls