DOWNLOAD Sharp LC-60UD20KN (serv.man5) Service Manual ↓ Size: 9.11 MB | Pages: 89 in PDF or view online for FREE

•  No power.

•  Is the AC cord disconnected?
•  Check if you pressed 

a on the TV.

•  The TV cannot be 

operated.

•  External influences such as lightning, static electricity, etc., 

may cause improper operation. In this case, operate the TV 
after first turning off the power, or unplugging the AC cord 
and re-plugging it in after one or two minutes.

•  Remote control unit 

does not operate.

•  Are batteries inserted with polarity (

e, f) aligned?

•  Are batteries worn out? (Replace with new batteries.)
•  Are you using it under strong or fluorescent lighting?
•  Is a fluorescent light illuminating to the remote control 

sensor?

•  Picture is cut off.

•  Is the image position correct?
•  Are screen mode adjustments (Wide mode) such as picture 

size made correctly? (Pages 43, 56 and 57)

• Strange colour, 

light colour, or dark 
colour, or colour 
misalignment.

•  Adjust the picture tone.
•  Is the room too bright? The picture may look dark in a room 

that is too bright.

•  Check the “Colour system” setting (Pages 40 and 45).

•  Power is suddenly 

turned off.

•  The TV’s internal temperature has increased. Remove any 

objects blocking the vent or clean.

•  Is the “Sleep timer” set? Select “Off” from the “Sleep timer” 

menu (Page 37).

•  Is “No signal off” or “No operation off” activated? (Page 37)

•  No picture.

•  Are connections to external equipment correct? 

(Pages 24

_29)

•  Is the input signal type selected correctly after connection? 

(Page 44)

•  Is the correct input source selected? (Page 16)
•  Is a non-compatible signal being input? (Page 59)
•  Is the picture adjustment correct? (Pages 33

_35)

•  Is the antenna connected properly? (Page 7)
•  Refer to “Picture / Audio test” (Page 77).

•  No sound.

•  Is the volume too low?
•  If you do not clearly hear the sound for the visually impaired, 

go to “TV Menu” > “Setup” > “Audio” > “Audio description 
setting” > “Mix level”, and select the upper level to turn up 
the volume.

•  Make sure that headphones are not connected.
•  Check if you pressed 

e on the remote control unit.

•  Is the proper item selected in the “Audio select” menu 

when connecting devices to the HDMI 3 terminal or the PC 
terminal? (Pages 25, 44 and 57)

•  Refer to “Picture / Audio test” (Page 77).

•  The TV sometimes 

makes a cracking 
sound.

•  This is not a malfunction. This happens when the cabinet 

slightly expands and contracts according to changes in 
temperature. This does not affect the TV’s performance.

•  Net TV start page 

cannot be displayed.

•  Is the ETHERNET cable connected correctly? (Page 62)
•  Check the settings of “Network setup” (Pages 62–63).

• Some Internet 

functions used on a 
PC are not available 
from the TV.

•  The TV has only limited functions compared with regular PC 

browsers (Page 64).

• Miracast image/audio 

cannot be output to 
the TV.

• Check pairing.

•  When the TV 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 TV will 
recover when the temperature returns to normal.

•  Do not leave the TV in a hot or cold location. Also, do not leave the TV 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: 

f 20 °C to e 60 °C.

 

Go to “TV Menu” > “Setup”.

 

Press 

a/b to select “Auto installation”, “Programme setup”, “PIN”, 

“Parental rating” or “Reset”, and then press 

;. The PIN input window will 

display.

 

Press and hold both 

:r and i+ on the TV simultaneously until the 

message appears on the screen.

•  When the PIN code is reset, the default PIN code (“1234”) is set.

If complex adjustments are made so that the settings cannot be restored to 
normal, you can reset the settings to the factory preset values.

 

Go to “TV Menu” > “Setup” > “View setting” > “Reset”.

 

Press 

c/d to select “Yes”, and then press ;.

•  “Now, TV will restart automatically, OK?” displays on the screen.

 

Press 

c/d to select “Yes”, and then press ;.

•  “Now initialising...” displays on the screen and blinks.
•  After the reset has completed, the power shuts off and then comes back on. The 

screen will have returned to its original settings.

•  PIN input is required when executing “Reset”. The default PIN is “1234”. To change the 

PIN setting, refer to Individual setting — PIN (Page 41). To reset the PIN setting (PIN 
input will no longer be needed), refer to Reset the PIN shown above.

•  “Reset” is greyed out in 3D mode. To select the “Reset” menu, you need to switch to 2D 

mode.

Ensure that your TV software version is always up to 
date. From time to time SHARP will make updated 
TV base software and DVB software available.

Go to “TV Menu” > “Setup” > “View setting” > 
“Individual setting” > “Standby search” > 
“Download setup”.

*  All countries except UK, Sweden, Finland and Italy are 

set to “No” for this function.

The TV automatically determines whether a new 
software version is available when the TV is in 
standby mode.

Automatically searches for new 
software updates available when the 
TV is in standby mode.

Does not search for update 
information.

Checks if there is new software 
immediately.

You can select the method of update.

 

If the software is updated, the confirmation 
message “New download information has been 
detected.” appears.*

•  If the TV receives the update service while in 

standby mode, a confirmation message displays 
after turning on the power.

* 

When the download is available only at a later time, 
a confirmation message regarding the scheduled 
date and time to start downloading from a TV 
station will be displayed. Download information 
may be displayed together with the confirmation 
message.

 

Follow the screen prompts.

Starts downloading immediately.* 
It takes approximately one hour to 
update. You cannot carry out other 
operations while downloading.
•  Cancels the download by pressing 

; on the remote control unit when 
“Discontinue” is displayed on the 
screen during the update.

Does not perform downloading.

*  The download will start at the date and time for the 

scheduled download. Turn on the power of the TV 
before the scheduled time for downloading or keep it in 
standby mode.

•  Updating the software may take some time.

When external equipment is connected with the 
TV powered on and there is no audio/video output, 
the TV may determine which equipment could 
cause a problem between the TV and the external 
equipment.

•  Terminals which can be tested:

HDMI, component, composite, SCART, DVI, D-sub

•  External speakers cannot be tested. This function is 

available for the TV speakers only.

Perform a test for picture display. 
When external equipment is connected 
but the picture is not displayed, the 
test will be performed.

Perform a test for audio playback. 
When external equipment is connected 
but the audio does not playback, the 
test will be performed.

When new software is detected, you can confirm the 
update information and download the software from 
“Message list”.

Go to “TV Menu” > “Setup” > “Information” > 
“Message list”.

•  When the TV succeeds at downloading new software, 

the message is updated in the “Message list” of the 
“Information” menu.

•  The software update will not be carried out if there is no 

new software available at the specified download time.

Display reports regarding failures and changes for 
timer settings.

Go to “TV Menu” > “Setup” > “Information” > 
“Receiver report”.

You can check the TV ID on the screen for reporting 
to customer service.

Go to “TV Menu” > “Setup” > “Information” > 
“Identification”.

You can read the software licences in this menu.

Go to “TV Menu” > “Setup” > “Information” > 
“Software licence”.

E

The software included in this product is comprised 
of various software components whose individual 
copyrights are held by SHARP or by third parties.

When you deactivate Netflix, refer to following 
process.

 

Go to “TV Menu” > “Setup” > “Information” > 
“Netflix help”.

 

Press 

c/d to select “Deactivate”, and then 

press OK.

 

Press 

c/d to select “Yes”, and then press OK.

This function allows you to update to the latest 
software via a USB device or network.

•  To check the availability of the latest software versions, 

visit http://www.sharp.eu/software-download/ for links 
to the download pages for the appropriate countries.

 

Go to “TV Menu” > “Setup” > “Information” > 
“Software update” > “USB update”.

•  You can also update the software through the 

network. Go to “TV Menu” > “Setup” > 
“Information” > “Software update” > “Network 
update” and follow the on-screen instruction.

•  A broadband connection and Network setup are 

required to update the software using the internet 
(Pages 62–63).

 

Press 

; and then insert the USB device 

containing the software update file.

•  Be sure to insert the USB device correctly into the 

terminal.

 

Press 

> to close the window when a screen 

prompt pops up.

 

The TV displays a confirmation screen while 
checking the data in the inserted USB device.

•  If the data is not compatible with the system, an error 

message appears on the screen. Repeat steps 2 and 3 
after pressing 

;.

•  When an error message displays, check to see if:

•  The USB device is inserted firmly.
•  The USB memory has two or more software update 

files.

•  No data for updating the system exists in the USB 

memory.

•  The software update file is broken.
•  The software update file is not compatible with your 

TV’s software.

•  The current system is same as the system update 

data.

•  The USB memory is not formatted by FAT32.

 

The TV displays the software version information 
after checking the data.

 

Press 

c/d to select “Yes” to update the 

system, and then press 

;.

 

The TV restarts automatically, and the software 
update will be complete. 

•  This operation may take a while.

•  The Net TV memory, which includes the lock code, 

passwords, and cookies, may be cleared when the 
software update is carried out.