Mitsubishi Electronics SERIES 742 Projection Television User Manual


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44 Appendices
For assistance call 1(800) 332-2119
Appendix B: Troubleshooting
General TV Operation
Symptom Remarks
1.
The TV remote control does not work.
• Check that the batteries are fresh and installed correctly.
• Be no more than 20 feet from the TV when using the remote
control.
• If using an external 3D emitter, try pointing the emitter in a
different direction or disconnect the emitter.
• There may be interference from the TV’s internal IR emitters
for 3D glasses. Turn off the emitters in the Picture > 3D
Mode menu.
2. When I try to use the remote control, the
POWER
key blinks five times
.
Replace the batteries.
3. TV does not respond to the remote control
or to control-panel buttons and TV will not
power on or off.
• Unplug the AC power cord for 10 seconds.
• Press and hold the
POWER
button on the control panel for
ten seconds to perform system reset.
4.
When a device is selected from the Input
Selection menu, the screen is blue or black (no
signal source).
• Makesuretheselecteddeviceisturnedon.
• Checkconnectionstothedevice.
• Beginplayofthedevice.
5. You have forgotten your Lock menu pass
code.
See “Bypassing TV Locks,” page 35.
6. Rating restrictions are not working. Open the Lock > Parental menu and:
• Verifythattheratingslocksareactive.
• ChecktheLockTime/UnlockTimetocheckifratingrestric-
tions are disabled.
• RatingrestrictionsapplyonlytocontentontheANT input
and composite Y/VIDEO inputs.
7. On-screen displays appear each time you
change a function.
Normal TV operation.
8. A warning message appeared on screen
stating, “TV will shut down in a few seconds.
Please check if the air flow is blocked.”
• InternalTVtemperaturehasexceededproperlevels.Cool
the room.
• TheTVhasoverheated.Clearblockedairventsandensure
at least four inches of clearance on all sides of the TV.
Service and Customer Support
Service
If you are unable to correct a problem with your
TV, consult Mitsubishi Consumer Relations at
1 (800) 332-2119.
• DONOTadjustanycontrolsotherthanthose
described in this Owner’s Guide and the on-line
supplemental Owner’s Guide.
•
DO NOT remove the protective back cover of your TV.
Customer Support
• Toorderreplacementoradditionalremotecontrols
,
visit our website at www.mitsuparts.com or call
1 (800) 553-7278.
• Forquestions:
- Call Consumer Relations at 1 (800) 332-2119.
- E-mail: TVsupport@mevsa.com
- Website: www.mitsubishi-tv.com
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