Troubleshooting - PROTRON PLTV-26M User Manual

OMPLTV26M_27M_32M.book Page 22 Monday, October 10, 2005 11:44 AM

Troubleshooting

Symptom Possible Cause
No picture Power cord not
(power securely connected
indicator does
Power switch is off
not light up)
Power outlet is off
or not working
No picture The display is in
(power power-saving mode
indicator is
red)
The display is off
No picture No signal
(power
indicator is
Contrast or
green)
brightness too low
Unclear or Signal cable(s) not
noisy picture securely connected
Poor TV signal
No sound Audio cable(s) not
securely connected
Headphones
plugged in
Audio muted
Display is too Contrast or
dark or too brightness too low
bright or too high
Display not Position incorrectly
centered adjusted in OSD
Image Signal cable(s) not
vibrating securely connected
Power voltage too
high or too low
Resolution
Make sure the power cord is firmly inserted into the
socket and outlet.
Turn on the power switch on the bottom of the display.
Try plugging a different device into the outlet and see if
it turns on. If not, turn on the outlet or use a different
outlet.
If in VGA or DVI mode, press a key on the keyboard or
move the mouse. Otherwise, press a button on the
remote.
Press the POWER button on the remote or on top of the
display.
Make sure the proper source is selected. If there is still
no picture, check the signal cable(s) and signal source.
Adjust the contrast and/or brightness until picture
appears.
Make sure the signal cable(s) are firmly connected.
Check the TV signal. If using an antenna, adjust the
position for better signal. If using cable or satellite TV,
contact your service provider.
Make sure the audio signal cable(s) are firmly
connected.
Unplug the headphones.
Unmute the audio by pressing the MUTE button on the
remote.
Adjust the contrast and/or brightness to desired setting.
Adjust the image position in the PC menu in the OSD
(see "PC" on page 21).
Make sure the signal cable(s) are firmly connected.
Check the power source to make sure it matches the
display specification. Try a different power outlet on a
different circuit.
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