ViewSonic PJ650 Service Manual - Page 21

Attention - projector bulbs

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PJ650 6-8 Replacing the Lamp All projector lamps will wear out eventually. If used for long periods of time, the image could become darkened, and the color contrast could be impacted as well. We recommend that you replace your lamps early. If the LAMP indicator turns red, or a message prompts you to replace the lamp when you power up the projector, the lamp needs to be replaced. (See "Related Messages" and "Regarding the Indicator Lamps" for details.) 1. Turn off the projector, and unplug the power cord. Allow the lamp bulb to cool for at least 45 minutes, and prepare a new lamp. 2. After making sure that the projector has cooled adequately, slowly flip over the projector, so that the bottom is facing up. 3. Unscrew the 2 screws, and remove the lamp cover. 4. Unscrew the 1 screw, and slowly pull out the lamp by the handle. Be careful not to touch the inside of the lamp case. 5. Insert the new lamp, and tighten the 1 screw firmly to lock it in place. Also steadily push the opposite side of the screwed side of the lamp into the unit. 6. Replace the lamp cover, and tighten the 2 screws firmly to lock it in place. 7. Slowly turn the projector so that the top is facing up. 8. Turn on the projector power, and using the menu, reset the lamp timer. To reset the lamp timer, from the OPTION menu, select LAMP TIME. ATTENTION • Make sure that the screws are screwed in firmly. Loose screws could result in damage or injury. • Do not use with lamp cover removed. • Do not reset the lamp timer without replacing the lamp. Reset the lamp timer always when replacing the lamp. The message functions will not operate properly if the lamp timer is not reset correctly. NOTE • The LAMP indicator is also red when the lamp unit reaches high temperature. Before replacing the lamp, switch power OFF, wait approximately 20 minutes, and switch power ON again. If the LAMP indicator is still red, replace the lamp. ViewSonic Corporation 20 PJ650

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20
PJ650
6-8 Replacing the Lamp
All projector lamps will wear out eventually. If used for long periods of time, the image could become
darkened, and the color contrast could be impacted as well. We recommend that you replace your lamps
early. If the LAMP indicator turns red, or a message prompts you to replace the lamp when you power up the
projector, the lamp needs to be replaced. (See "Related Messages" and "Regarding the Indicator Lamps" for
details.)
1. Turn off the projector, and unplug the power cord. Allow the lamp bulb to cool for at least 45 minutes, and
prepare a new lamp.
2. After making sure that the projector has cooled adequately, slowly flip over the projector, so that the
bottom is facing up.
3. Unscrew the 2 screws, and remove the lamp cover.
4. Unscrew the 1 screw, and slowly pull out the lamp by the handle.
Be careful not to touch the inside of the lamp case.
5. Insert the new lamp, and tighten the 1 screw firmly to lock it in place.
Also steadily push the opposite side of the screwed side of
the lamp into the unit.
6. Replace the lamp cover, and tighten the 2 screws firmly to lock it in place.
7. Slowly turn the projector so that the top is facing up.
8. Turn on the projector power, and using the menu, reset the lamp timer.
To reset the lamp timer, from the OPTION menu, select LAMP TIME.
ATTENTION
• Make sure that the screws are screwed in firmly. Loose screws could result in damage or injury.
•
Do not use with lamp cover removed.
• Do not reset the lamp timer without replacing the lamp. Reset the lamp timer always when replacing the
lamp. The message functions will not operate
properly if the lamp timer is not reset correctly.
NOTE
• The LAMP indicator is also red when the lamp unit reaches high temperature.
Before replacing the lamp, switch power OFF, wait approximately 20 minutes, and switch power ON
again. If the LAMP indicator is still red, replace the lamp.
ViewSonic Corporation
PJ650