Read Sharp LC-60UQ10KN (serv.man3) Service Manual online
11
LC-60UQ10
LC-70UQ10
LC-70UQ10
Operation Manual (Continued)
77
Appendix
Tr
oubleshooting
Pr
oblem
Possible solution
•
No power
.
•
Is the AC cor
d disconnected?
•
Check if you pr
essed
a
on the TV
.
•
The TV cannot be operated.
•
Exter
nal influences such as lightning, static electricity
, etc.,
may cause impr
oper operation. In this case, operate the TV
after first tur
ning of
f the power
, or unplugging the AC cor
d
and r
e-plugging it in after one or two minutes.
•
Remote contr
ol unit
does not operate.
•
Ar
e batteries inserted with polarity (
e
, f
) aligned?
•
Ar
e batteries wor
n out? (Replace with new batteries.)
•
Ar
e you using it under str
ong or fluor
escent lighting?
•
Is a fluor
escent light illuminating to the r
emote contr
ol
sensor?
•
Pictur
e is cut of
f.
•
Is the image position corr
ect?
•
Ar
e scr
een mode adjustments (Wide mode) such as pictur
e
size made corr
ectly? (Pages 45, 58 and 59)
•
Strange colour
,
light colour
, or dark
colour
, or colour
misalignment.
•
Adjust the pictur
e tone.
•
Is the r
oom too bright? The pictur
e may look dark in a r
oom
that is too bright.
•
Check the “Colour system” setting (Pages 42 and 47).
•
Power is suddenly tur
ned of
f.
•
The TV’
s inter
nal temperatur
e has incr
eased. Remove any
objects blocking the vent or clean.
•
Is the “Sleep timer” set? Select “Of
f” fr
om the “Sleep timer”
menu (Page 39).
•
Is “No signal of
f” or “No operation of
f” activated? (Page 39)
•
No pictur
e.
•
Ar
e connections to exter
nal equipment corr
ect?
(Pages 26
_
31)
•
Is the input signal type selected corr
ectly after connection?
(Page 46)
•
Is the corr
ect input sour
ce selected? (Page 18)
•
Is a non-compatible signal being input? (Page 61)
•
Is the pictur
e adjustment corr
ect? (Pages 35
_
37)
•
Is the antenna connected pr
operly? (Page 9)
•
Refer to “Pictur
e / Audio test” (Page 79).
•
No sound.
•
Is the volume too low?
•
If you do not clearly hear the sound for the visually impair
ed,
go to “TV Menu” > “Setup” > “Audio” > “Audio description setting” > “Mix level”, and select the upper level to tur
n up
the volume.
•
Make sur
e that headphones ar
e not connected.
•
Check if you pr
essed
e
on the r
emote contr
ol unit.
•
Is the pr
oper item selected in the “Audio select” menu
when connecting devices to the HDMI 2 terminal or the PC terminal? (Pages 28, 29 and 46)
•
Refer to “Pictur
e / Audio test” (Page 79).
•
The TV sometimes makes a cracking sound.
•
This is not a malfunction. This happens when the cabinet slightly expands and contracts accor
ding to changes in
temperatur
e. This does not af
fect the TV’
s performance.
•
Net TV start page cannot be displayed.
•
Is the ETHERNET cable connected corr
ectly? (Page 64)
•
Check the settings of “Network setup” (Pages 64–65).
•
Some Inter
net
functions used on a PC ar
e not available
fr
om the TV
.
•
The TV has only limited functions compar
ed with r
egular PC
br
owsers (Page 66).
•
Miracast image/audio cannot be output to the TV
.
•
Check pairing.
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