32Appendices

Appendix B: Troubleshooting, continued

TV Power On/Off

 

Symptom

 

 

Remarks

 

 

 

 

 

1.

TV takes an excessively long time to power

 

 

When powered on, the TV needs time to boot up, just as a

 

on.

 

 

computer does.

 

 

 

 

 

2.

You cannot program the TV to turn on auto-

 

 

• The TV may be locked.

 

matically (Timer function)

 

 

• The clock may not be set.

3.

TV turned itself off and the light on the front

 

 

• Momentary power fluctuation can cause the TV to turn off

 

panel started to blink.

 

 

to prevent damage. Wait for the green light to stop flashing

 

 

 

 

and turn the TV on again.

 

 

 

 

• If the TV does not stay on, press the POWER button on the

 

 

 

 

control panel for ten seconds to perform System Reset. If

 

 

 

 

this happens frequently, obtain an AC line power condi-

 

 

 

 

tioner/surge protector.

 

 

 

 

• An unusual digital signal may have been received, triggering a

 

 

 

 

protection circuit. Wait for the light to stop flashing and turn TV

 

 

 

 

on.

 

 

 

 

 

4.

TV will not power off.

 

 

Press the POWER key on the control panel for ten seconds to

 

 

 

 

perform System Reset.

 

 

 

 

 

 

 

 

 

Picture

 

 

 

 

Symptom

Remarks

1.

The picture does not look like a high-defini-

Not all signals are high-definition signals. To receive high-defini-

 

tion picture.

tion programming from your cable or satellite provider, you must

 

 

subscribe to the provider’s high-definition service. Some over-

 

 

the-air broadcasts are in high-definition and can be received with

 

 

a high-quality antenna suited to your location.

 

 

 

 

2.

TV has sound but no picture.

•

Press MENU on the remote control. If the menu displays, then

 

 

 

 

there is a problem with the incoming signal.

 

 

• Check that all video inputs are plugged in firmly.

 

 

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

 

 

 

 

seconds to perform System Reset.

 

 

 

3.

You cannot view a picture when playing a

Check your VCR’s owner’s guide for further troubleshooting.

 

VHS tape.

 

 

 

 

 

 

4.

VCR or DVD player’s on-screen menus jitter

Stop playback. Possible cause: Many VCRs and DVD players

 

up and down.

provide on-screen menus at only half-resolution that may appear

 

 

to jitter up and down.

 

 

 

5.

When viewing a stopped VCR, white lines are

• Turn off video mute for the VCR.

 

rolling on the screen.

• Begin playing the tape.

 

 

• Change the VCR input from Line 1 to the VCR antenna input.

 

 

 

6.

Picture from an HDMI input is noisy (poor

Upgrade a standard (unmarked) HDMI cable to a high-speed

 

quality).

HDMI cable.

 

 

 

 

7.

The image from a computer appears dis-

•

Normal TV operation. The TV does not correct distortion in

 

torted when viewed on the TV.

 

 

the picture from a computer because the correction process

 

 

 

 

may cut off the edges of the image.

 

 

• The aspect ratio may be wrong for the image. Press FORMAT

 

 

 

 

to change.

 

 

 

 

 

For assistance call 1(800) 332-2119

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Mitsubishi Electronics 642 Series manual TV Power On/Off Symptom Remarks, Picture Symptom Remarks
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642 Series specifications

Mitsubishi Electronics has long been recognized for its commitment to innovation and technology in various sectors, including industrial automation, consumer electronics, and communications. One of the standout products from this brand is the Mitsubishi 642 Series, known for its impressive performance and versatility across numerous applications.

The 642 Series is primarily geared towards industrial automation, which is a critical area in today’s fast-paced manufacturing environment. This series boasts a range of features that set it apart from competitors. A major highlight of the 642 Series is its robust processing power, enabling it to handle complex tasks seamlessly. The series is equipped with advanced microcontroller technology that ensures high-speed data processing and enhanced operational efficiency.

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