Fixing problems
❏Press menu, go to Sound > Internal speakers, and be sure the speakers are turned on.
❏Press menu, go to Help > Diagnostics, and run the sound test.
❏Be sure that the mute and volume settings are correct on the source device, such as a VCR, camcorder, or computer.
If no sound is coming out of an external sound system:
❏Be sure you have an audio cable securely connected between the source device and the sound system.
Interruption problems
If the projector stops responding to all controls:
❏If possible, turn off the projector, then unplug the power cord and wait at least 15 seconds before reconnecting power.
If the lamp shuts off during a show:
❏A minor power surge might cause the lamp to shut off. This is normal. Wait a few minutes, then power on the projector.
❏If a red warning light is on or blinking, see “Warning light problems” on page 57.
If the lamp burns out or makes a popping sound:
❏If the lamp burns out and makes a popping sound, the projector will not turn back on until the lamp module has been replaced.
❏If the lamp breaks, contact HP about repairs that might be required due to glass fragments.
Remote control problems
If the remote control does not operate:
❏Be sure nothing is blocking the remote control receiver on the front or back of the projector. Move to within 9 m (30 ft) of the projector.
❏Aim the remote control at the screen or at the front or back of the projector.
❏Press menu, go to Help > Diagnostics, and run the remote control test.
❏Replace the batteries in the remote control.
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