Mitsubishi Electronics 642 Series manual Appendix B Troubleshooting, Service and Customer Support

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30Appendices

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.

 

 

 

2.

When I try to use the remote control, the

Replace the batteries.

 

POWER key blinks five times.

 

 

 

 

 

3.

TV does not respond to the remote control

• Unplug the AC power cord for 10 seconds.

 

or to control-panel buttons and TV will not

• Press and hold the POWER button on the control panel for 10

 

power on or off.

 

seconds to perform system reset.

 

 

 

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.

 

 

 

5.

You have forgotten your Lock menu pass

See “Bypassing TV Locks” on page 22.

 

code.

 

 

 

 

 

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

Normal TV operation.

 

change a function.

 

 

 

 

 

 

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

 

 

 

at least four inches of clearance on all sides of the TV.

 

 

 

9.

I have turned on CEC for my HDMI devices

• First turn off the TV’s HDMI control for the specific device.

 

but control is erratic and I wish to disable it.

 

Open the Inputs > HDMI Control menu, select the device,

 

 

 

select Off.

 

 

• Disable CEC on the device itself. See the device’s instruc-

 

 

 

tions.

 

 

• If the problem persists, do the following:

 

 

 

1. Disconnect the device from the TV.

 

 

 

2. Open the Inputs > Name menu and select Delete for

 

 

 

the device.

 

 

 

3. Reconnect the device to the TV and Auto Input Sensing

 

 

 

will recognize the device with CEC disabled.

 

 

 

 

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.

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

For assistance call 1(800) 332-2119

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Contents Series C12 Series Mail us at TVsupport@mevsa.comTV Software Children and TV ViewingContents Replacement Parts Outdoor Antenna GroundingPb Pr Supplemental Information on TV Inputs and OutputsHdmi Inputs High-Definition Multimedia Interface HdmiUsing the TV with an Audio-Only Device Inputs and OutputsEffect of Mitsubishi Formats on Picture Types Picture Shape and Display FormatsFormat Definitions DVD Image DefinitionsHdmi Connection Connecting a Computer to the TVSignals DVI Video ConnectionTip Computer Video AdjustmentsImage Resolution Distortion in Computer ImagesMain Menu Picture Reset PictureSaving Custom 3D Settings To Use a Custom Picture Mode at a Later TimePicture Advanced 642 Series only Automatic Source OffFormat Side-by-SideSound Sound AudioSAP Captions Setup Clock SetupSetup Language Setup TimerAnt Air Ant Cable Setup ChannelAdding/Deleting Channels Using the Channel Edit Menu EnterSetup Energy Lamp Standard, Energy BrightCD/Audio, MP3 Player, VCR InputsInputs Name PC, AVR, DeleteInputs Update Inputs ControlInputs Order Pass Code LockTV Locks Parental MenuUsing TV Locks Tips for Using the Lock MenuBypassing TV Locks Lock Parental TV-YLock Panel Lock TimeLock Channel Lock OtherHdmi cable cannot support CEC Action Enabling Hdmi Control CEC DevicesHas No Hdmi Control Option Device does not have CEC compatibility ActionHDMI, you can use any Hdmi cableCable BoxRemoving an Hdmi Device Using Hdmi ControlResolving CEC Conflicts Turning Off the TV’s Hdmi Control of a CEC DeviceAppendix a Lamp Cartridge Replacement Lamp-Cartridge ReplacementLamp Part Number 915B455012 Installing the New Lamp Cartridge Use only replacement lamp part number 915B455012Replacement Procedure Removing the Old Lamp CartridgeGeneral TV Operation Symptom Remarks Appendix B TroubleshootingService and Customer Support ServiceTV Channels Symptom Remarks TV Power On/Off Symptom Remarks Picture Symptom RemarksSound Symptom Remarks Trademark and License Information Mitsubishi TV Software GNU General Public License Conveying Verbatim Copies Acceptance Not Required for Having Copies GNU General Public License No Warranty Version 2.1, February PreambleFor assistance call 1800 Warranty43 Warranty Index System Reset TVsupport@mevsa.com

642 Series specifications

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