Sharp LC-20S1U LC-13S1U LC-15S1U LC-20S1U Operation Manual - Page 51

Troubleshooting - b service manual

Page 51 highlights

TROUBLESHOOTING I Before calling for repair services, make the following checks for possible remedies to the encountered symptoms. TV set Problem Sound Picture There is no picture or sound. There is no Picture picture. There is no picture from AV-IN1/2. There is no sound. Check item • Make sure the AC adapter is properly inserted in the power outlet. • Reception other than those of broadcasting stations can be considered. • Make sure the input mode is set to TV. • Make sure the MAIN POWER switch of the main unit is on. • Make sure the BLACK LEVEL is properly adjusted. • Fluorescent lamp may have reached the end of service life. • Make sure the S-VIDEO terminal has nothing con- nected. • Make sure the AUDIO ONLY is not set to ON. • Make sure the volume is not set to minimum. • Make sure the sound is not set to mute. • Make sure that headphones are not connected. Reference Pages 11 - 22 21 32, 33 52 48 29 23 23 23 There is no picture or • Make sure the antenna cable is properly connected. • Bad reception could be the problem. 10 - sound, just noise. • Make sure the antenna cable is properly connected. 10 Picture is not • Bad reception could be the problem. - clear. Picture is light or improperly tinted. • Check color adjustment. • Check COLOR SYSTEM setting. 32, 33 32, 33 The picture is too dark. Remote control does not work. The clock (AUTO CLOCK) cannot be set. • Press the BRIGHT button or set the BRIGHTNESS settings. • Check PICTURE and BLACK LEVEL adjustment. • Fluorescent lamp may have reached the end of service life. 27 32, 33 52 • Check the batteries of the remote control. 8 • Make sure the remote sensor window is not under 8 strong lighting. • The broadcasted EDS signal may be weak. Check the antenna. • Carry out EZ SETUP, SETTING THE CLOCK again. • If EDS signal is not sent, set the clock using MANUAL CLOCK Setting. - 17-19, 35 19 50

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50
TROUBLESHOOTING
Before calling for repair services, make the following checks for possible remedies to
the encountered symptoms.
TV set
Problem
Check item
Reference
Pages
There is no
picture.
There is no
picture from
AV-IN1/2.
11
22
21
Sound
Picture
Make sure the AC adapter is properly inserted in the
power outlet.
Reception other than those of broadcasting stations
can be considered.
Make sure the input mode is set to TV.
Make sure the MAIN POWER switch of the main unit
is on.
There is no
picture or
sound.
Picture
Make sure the BLACK LEVEL is properly adjusted.
Fluorescent lamp may have reached the end of
service life.
Make sure the S-VIDEO terminal has nothing con-
nected.
Make sure the AUDIO ONLY is not set to ON.
There is no
sound.
Make sure the volume is not set to minimum.
Make sure the sound is not set to mute.
Make sure that headphones are not connected.
There is no
picture or
sound, just
noise.
Make sure the antenna cable is properly connected.
Bad reception could be the problem.
Picture is not
clear.
Make sure the antenna cable is properly connected.
Bad reception could be the problem.
Picture is light
or improperly
tinted.
Check color adjustment.
Check COLOR SYSTEM setting.
The picture is
too dark.
Press the BRIGHT button or set the BRIGHTNESS
settings.
Check PICTURE and BLACK LEVEL adjustment.
Fluorescent lamp may have reached the end of
service life.
Remote control does not work.
Check the batteries of the remote control.
Make sure the remote sensor window is not under
strong lighting.
32, 33
52
48
29
23
23
23
10
10
32, 33
32, 33
27
32, 33
52
8
8
The clock (AUTO CLOCK)
cannot be set.
The broadcasted EDS signal may be weak. Check the
antenna.
Carry out EZ SETUP, SETTING THE CLOCK again.
If EDS signal is not sent, set the clock using MANUAL
CLOCK Setting.
17
19, 35
19