Canon LV-HD420 User Manual download pdf (Page 72)

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Problem: The image is wider at the top or bottom (trapezoid effect)

1. Position the projector so it is as perpendicular to the screen as possible.

2. Use the Keystone button on the remote control or the projector to correct the problem.

Problem: The image is reversed

Check the Projection setting on the Settings 1 menu of the OSD.

Problem: The image is streaked

1. Set the Frequency and Tracking settings on the Image->Analog setting menu of the

OSD to the default settings.

2. To ensure the problem is not caused by a connected PC’s video card, connect to another

computer.

Problem: The image is flat with no contrast

Adjust the Contrast setting on the Image menu of the OSD.

Problem: The color of the projected image does not match the source image.

Adjust the Color Temperature and Gamma settings on the Image->Advanced menu of the

OSD.

Lamp Problems

Problem: There is no light from the projector

1. Check that the power cable is securely connected.

2. Ensure the power source is good by testing with another electrical device.

3. Restart the projector in the correct order and check that the Power LED is on.

4. If you have replaced the lamp recently, try resetting the lamp connections.

Problem: The lamp goes off

Power surges can cause the lamp to turn off. Re-plug power cord. When the Power LED is

on, press the power button.

Remote Control Problems

Problem: The projector does not respond to the remote control

1. Direct the remote control towards remote sensor on the projector.

2. Ensure the path between remote and sensor is not obstructed.

3. Turn off any fluorescent lights in the room.

4. Check the battery polarity.

5. Replace the battery.

6. Turn off other Infrared-enabled devices in the vicinity.

7. Have the remote control serviced.

Audio Problems

Problem: There is no sound

1. Adjust the volume on the remote control.

2. Adjust the volume of the audio source.

3. Check the audio cable connection.

4. Test the audio source output with other speakers.

5. Have the projector serviced.

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Canon LV-HD420 User Manual Page 72