Appendix

Problem

Possible Solution

• No picture

• Is connection to other components correct? Page 11

Is the correct input signal type selected in "Input Select" after connection?

Page 24

Is the correct input selected? Page 15

Is “On” selected in “Audio Only”? Page 24

If the PC image is not displayed, check the following:

-When connecting a laptop PC to the TV, check that display output mode of the PC is set to external monitor.

-Check the resolution setting on the PC. Is a non-compatible signal being input?

Page 30

• Picture quality of HD programs is

• To enjoy HD images from external equipment, you are required to set up HDMI

poor.

connection or component connection.

If the program content is not of HD quality, HD images cannot be displayed. Check that the program you are viewing provides HD images.

The HD cable/satellite set-top box may need to be confi gured to output HD images via cable/satellite.

The cable/satellite broadcast may not support a signal resolution of 1080p.

The TV sometimes makes a • This is not a malfunction. This happens when the cabinet slightly expands and

cracking sound.

contracts according to change in temperature. This does not affect the TV's

 

performance.

 

 

 

 

Troubleshooting - Error Message

 

 

 

 

The example of an error message

Error code

Possible Solution

displayed on a screen

 

 

 

 

 

• Failed to receive broadcast.

E202

• Check the antenna cable. Check that the antenna is correctly

 

setup.

 

 

 

 

 

• No broadcast now.

E203

• Check the broadcast time in the program guide.

 

 

 

• An incompatible audio signal has

• This message is displayed when an audio format other than

been received. Change the output

 

PCM is input. (Dolby Digital and DTS audio formats are not

device audio settings to PCM.

 

supported.)

 

 

- Set the audio output format of connected external HDMI

 

 

equipment to PCM.

 

 

- Refer to the operation manual of the external equipment for

 

 

setting details.

 

 

 

Cautions regarding use in high and low temperature environments

When the unit is used in a low temperature space (e.g. room, offi ce), the picture may leave trails or appear slightly delayed. This is not a malfunction, and the unit will recover when the temperature returns to normal.

Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight or near a

heater, as this may cause the cabinet to deform and the Liquid Crystal panel to malfunction. Storage temperature: f4°F to e140°F (f20°C to e60°C)

CLEARING THE SECRET NUMBER

If you forget the secret number, clear the secret number using the following procedure.

1Select an item from the list below to display the secret number input screen. (For operating the on-screen display menu, see page 17.)

“EZ Setup”, “CH Setup”, “Parental CTRL” or “Reset” on the Setup menu.

“Color System” on the Option menu.

“Software Update” on the Digital Setup menu.

2Press and hold both CHrand VOLk on the TV simultaneously until the message appears on the screen.

The secret number is

.

• As a precautionary measure, make a note of your secret number above, cut it from this manual, and keep it in a safe place.

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Sharp LC-52D78UN, LC-46D78UN Troubleshooting Error Message, Appendix, Clearing the Secret Number, Secret number is