Troubleshooting - PROTRON PLTV-3250 User Manual

OMPLTV3250-1.book Page 25 Monday, July 17, 2006 8:15 PM

Troubleshooting

Symptom
No picture
(power
indicator does
not light up)
No picture
(power
indicator is
red)
No picture
(power
indicator is
green)
Unclear or
noisy picture
No sound
Display is too
dark or too
bright
Display not
centered
Image
vibrating
Possible Cause Resolution
Power cord not Make sure the power cord is firmly inserted into the
securely connected socket and outlet.
Power switch is off Turn on the power switch on the bottom of the display.
Power outlet is off Try plugging a different device into the outlet and see if
or not working it turns on. If not, turn on the outlet or use a different
outlet.
The display is in If connected to a computer and in VGA or HDMI mode,
power-saving mode press a key on the keyboard or move the mouse.
Otherwise, press a button on the remote.
The display is off Press the power button on the remote or on the front of
the display.
No signal Make sure the proper source is selected. If there is still
no picture, check the signal cable(s) and signal source.
Contrast or Adjust the contrast and/or brightness until picture
brightness too low appears.
Signal cable(s) not Make sure the signal cable(s) are firmly connected.
securely connected
Poor TV signal Check the TV signal. If using an antenna, adjust the
position for better signal. If using cable or satellite TV,
contact your service provider.
Audio cable(s) not Make sure the audio signal cable(s) are firmly
securely connected connected.
Headphones Unplug the headphones.
plugged in
Unmute the audio by pressing the MUTE button on the
Audio muted
remote.
Contrast or Adjust the contrast and/or brightness to desired setting.
brightness too low
or too high
Position incorrectly Adjust the image position in the PC menu in the OSD
adjusted in OSD (see "PC" on page 19).
Signal cable(s) not Make sure the signal cable(s) are firmly connected.
securely connected
Power voltage too Check the power source to make sure it matches the
high or too low display specification. Try a different power outlet on a
different circuit.
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