Sharp LC-M3700 - Manual (Page 66)

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US
Settings and Adjustments
T
roub
leshooting
and Specifications
Before calling for repair services, make sure following checks for possible remedies to the
encountered symptoms.
There is no picture or
sound.
Problem Check item Page
»Is the AC cord disconnected?
»Is the Main POWER turned off or is the monitor in
standby mode?
»Make sure external devices are connected properly.
»Make sure correct INPUT is selected.
»Make sure the connected external device is operating
(playing back).
»Are the batteries inserted with polarity ( ± , — ) aligned?
»Are the batteries worn out?
»Point the remote control toward the monitor’s remote
control sensor.
»Is Control lock activated?
»Are audio cables connected properly?
»Make sure audio cables for external speakers are
connected properly: left and right cables may be
reversed or one of the two cables may not be connected.
»The monitor speaker output is monaural.
»Make sure the volume is not set to minimum.
»S-video, COMPONENT-video and RGB terminals are for
video only. Make sure audio cables are also connected.
»Is the audio corresponding to the selected image being
input?
»Is audio output when monitor speaker output is set to
“On”? If so, the problem is located subsequent to the
external speaker output terminal. If not, the problem is in
the input terminal or settings.
»Check “Color” and “Tint” adjustments.
»When using INPUT3 input, make sure the connection
sequence is correct.
Remote control does not work.
Sound from left and right
speakers is reversed.
Sound is heard from
only one side.
There is a picture but
no sound
Faint color or bad hue.
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30
13 to 17
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13 to 16
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13 to 16
13 to 16
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Troubleshooting
L R
Left
sound
Right
sound
· · · · · · · ·
»Has the correct terminal been selected with Input selection?
»The signal may be incompatible.
»Make sure sync signals (HD and VD) are connected
correctly (INPUT3 RGB mode).
When using INPUT3 (RGB) or PC (analog) input, a sync
signal is necessary if the signal does not employ Sync
on Green. There is no picture.
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–
15
»Is Control lock activated?
Menu screen does not display.
Monitor buttons do not work.
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»Are matching settings (for baud rate etc.) used on the
PC side?
»Is Control lock activated?
»If monitors are chained, make sure connection between
terminals are correct. (The side closer to the PC should
be RS-232C INPUT, and the side further from the PC
should be RS-232C OUTPUT.)
»Make sure the command is correct.
»Did you enter carriage return code (0D
H ) at the end of
each command?
»Is cross cable used for RS-232C connection? (Straight
cable cannot transmit data).
»Did you receive a response for the previous command?
(Make sure OK or ERR message was returned.)
RS-232C command does not work.
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