Mitsubishi Electronics Mitsubishi Digital Electronics Home Theater System 838 User Manual download pdf (Page 33)

Appendices 33

For assistance call 1(800) 332-2119

Appendix C: Troubleshooting, continued

Common Picture Problems

Symptom Remarks

1. Picture does not look like a high-defi-

nition picture.

Compare the picture to the TV’s test picture (Picture > Picture+ >

Test Picture) to check if the source signal is supplying a lesser-quality

image.

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

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 •

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 to the correct input •

jacks.

Press and hold the •

POWER

button on the control panel for ten

seconds to perform System Reset.

3. Picture has become dimmer. • Thelampisnearingtheendofitslife.Orderanewlamp.

• Adjustpicturebrightnessandcontrasttomaximumlevels.

• ChangeLamp Energy from Standard to Bright.

4. A color program appears as a black

and white image, or the colors are

dim, or the screen is black.

If using component video, check that the red, green, and blue input •

cables are correctly connected to the red, green, and blue compo-

nent video jacks.

If using composite video, check that the incoming cable is con-•

nected the TV’s green

Y/VIDEO

jack.

838 Series. The PerfectColor color balance has been incorrectly •

set. Reset the PerfectColor balance.

5. Picture from an HDMI input is noisy

(poor quality).

C• ompare the picture to the TV’s test picture (Picture > Picture+ >

Test Picture) to check if the noise is internal or external to the TV.

Upgrade a Category 1 (unmarked) HDMI cable to a newer type of •

high-speed HDMI cable.

Home Network

Symptom Remarks

1. I cannot connect the TV to the

network.

Go to the Setup > Network menu. Obtain the TV MAC address and

provide it to the router.

2. I plugged in a wireless USB adapter,

but the wireless connection is not

working.

The network may be locked. Go to Setup > Network. Highlight the

network name and supply the pass code.

3. The INTERNET key only goes to

VUDU.

Normal operation. The TV receives all internet services through VUDU.

The TV does not provide full internet access as does a web browser on

a computer.

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Mitsubishi Electronics Mitsubishi Digital Electronics Home Theater System 838 User Manual Page 33

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