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TROUBLESHOOTING
Problem
No image on screen, and
no sound from speakers.
Speakers produce sound,
but no image on screen.
Image is too light or
improperly tinted.
Image is displayed, but no
sound from speakers.
Image is too dark.
No colors on image.
Remote control does not work.
LC-15M4U(20-28)Eng.p65
• Make sure that the AC power cord plug is securely
inserted in AC power outlet and AC adapter.
• Make sure that the AC adapter's DC output is securely
connected to main unit's DC input terminal.
• Make sure that the main power switch of the main unit is
on.
• Make sure that the AV input is properly set.
• Make sure that the cables are correctly connected to
rear terminal section of LCD monitor.
• Check to see if the batteries in the remote control have
sufficient power.
• Make sure that the unit is not in the standby mode
(power indicator is red).
• Make sure that the cables are correctly connected.
• Check COLOR and TINT adjustments. (NTSC ONLY)
• Check CONTRAST and BLACK LEVEL adjustments.
• Check RED-BLUE adjustments.
• Make sure that the VCR connection cord is correctly
connected to the COMPONENT terminal.
• Make sure that the cables are properly connected to
rear terminal section of LCD monitor.
• Check the volume adjustment.
• Make sure that the sound is not muted.
• Make sure that the headphones are not connected.
• Check to see if BRIGHTNESS is set to DARK.
• Check CONTRAST and BLACK LEVEL adjustments.
• Lamp may have reached the end of its life. (Contact a
Sharp service shop for a lamp replacement.)
• Check COLOR adjustment.
• Check the color system setting.
• Make sure that the VCR connection cord is correctly
connected to P
COMPONENT terminal.
• Check to see if the batteries in the remote control
have sufficient power.
• Make sure that (+) and (–) side of batteries are
properly positioned in remote control.
• Make sure that the remote sensor window is not
under strong fluorescent lighting.
25
Check item
and P
of the
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R
01.7.24, 5:17 PM
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