HP ep7100 Series - Manual (Page 62)

62 User’s Guide
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.