34Appendices
Appendix B: Troubleshooting
General TV Operation
| Symptom | Remarks | |
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1. | The TV remote control does not work. | • Check that the batteries are fresh and installed correctly. | |
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| • Be no more than 20 feet from the TV when using the remote | |
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| control. |
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| • If using an external 3D emitter, try pointing the emitter in a | |
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| different direction or disconnect the emitter. |
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| • There may be interference from the TV’s internal IR emitters | |
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| for 3D glasses. Turn off the emitters in the Picture > 3D |
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| Mode menu. |
2. | When I try to use the remote control, the | Replace the batteries. | |
| POWER key blinks five times. |
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3. | TV does not respond to the remote control | • Unplug the AC power cord for 10 seconds. | |
| or to | • Press and hold the POWER button on the control panel for | |
| power on or off. |
| ten seconds to perform system reset. |
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4. | When a device is selected from the Input | • Make sure the selected device is turned on. | |
| Selection menu, the screen is blue or black (no | • Check connections to the device. | |
| signal source). | • Begin play of the device. | |
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5. | You have forgotten your Lock menu pass | See “Bypassing the Parental Lock”, Appendix B. | |
| code. |
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6. | Rating restrictions are not working. | Open the Lock > Parental menu and: | |
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| • Verify that the ratings locks are active. | |
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| • Check the Lock Time/Unlock Time to check if rating restric- | |
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| tions are disabled. |
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| • Rating restrictions apply only to content on the ANT input and | |
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| composite Y/VIDEO inputs. |
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7. | Normal TV operation. | ||
| change a function. |
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8. | A warning message appeared on screen | • | Internal TV temperature has exceeded proper levels. Cool |
| stating, “TV will shut down in a few seconds. |
| the room. |
| Please check if the air flow is blocked.” | • | The TV has overheated. Clear blocked air vents and ensure |
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| at least four inches of clearance on all sides of the TV. |
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Service and Customer Support
Service
If you are unable to correct a problem with your TV, consult Mitsubishi Consumer Relations at 1 (877)
•DO NOT adjust any controls other than those described in this 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)
•For questions:
- Call Consumer Relations at 1 (877)
- Website:
For assistance call 1(877)