LC-20SD4E (serv.man7) - Sharp TV User Guide / Operation Manual. Page 27

• Check if you pressed a on the TV. (See page 7.)

If the indicator on the TV lights up red, press B on the remote control unit.

• Is the AC cord disconnected? (See page 3.)
• Check if you pressed B on the remote control unit. (See page 7.)

• External influences such as lightning, static electricity, etc., may cause  improper

operation. In this case, operate the unit after first turning the power off, or
unplugging the AC cord and re-plugging it in after 1 or 2 minutes.

• Are batteries inserted with polarity (e, f) aligned? (See page 4.)
• Are batteries worn out? (Replace with new batteries.)
• Are you using it under strong or fluorescent lighting?
• Is a fluorescent light illuminating the remote control sensor?

• Are wide mode adjustments made correctly? (See page 25.)

• Adjust the picture tone. (See page 11.)
• Is the room too bright? The picture may look dark in a room that is too bright.
• Check the colour system setting. (See page 14.)

• The unit’s internal temperature has increased.

Remove any objects blocking vent or clean.

• Check the Auto power off setting. (See page 14.)
• Is sleep timer set? Press SLEEP on the remote control unit until it sets to Off.

• Is connection to other components correct? (See page 8.)
• Is input signal type selected correctly after connection? (See page 14.)
• Is the correct input source selected? (See page 8.)
• Is picture adjustment correct? (See page 11.)
• Is the antenna connected properly? (See page 3.)

• Is the volume too low? (See page 5 and 6.)
• Make sure that headphones are not connected. (See page 6.)
• Check if you pressed e on the remote control unit. (See page 5.)

We suggest that you remove the following instruction from the operation manual to prevent children from
reading it. As this operation manual is multilingual, we also suggest the same with each language. Keep it in
a safe space for future reference.

• When the unit is used in a low temperature space (e.g. room, office), 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 LCD panel to malfunction.
Storage temperature: –20°C to e60°C.

In the DTV mode, decrease the volume to the minimum.

Hold the i – on the TV and 3 on the remote control unit at the same time for approximately 2 seconds.

• The PIN resets to the factory preset “0000”.

• No power.

• Unit cannot be operated.

• Remote control unit does not

operate.

• Picture is stretched vertically.

• Strange colour, light colour, or

dark, or colour misalignment.

• Power is suddenly turned off.

• No picture.

• No sound.