55
54
APPENDIX C : Troubleshooting
Problem
Suggested Actions
Reference
No sound
Sound level is too low
Sound is too high pitched or
too low pitched
TV signal is not received
Ensure that the audio cable is firmly
connected to both the audio-in jack on your
monitor and the audio-out jack on your sound
card.
Check the volume level
Check the volume level
If the volume is still too low after turning the
control to its maximum, check the volume
control on the computer sound card or
software program.
Adjust the Treble and Bass to appropriate
level.
Ensure that the antenna cable is firmly
connected to the VHF/UHF jack.
Check “Channel Memory” and make sure you
choose the correct channel system.(PAL Model)
Select “Auto Tuning” to configure the channel
system automatically.(PAL Model)
Check AIR/CATV is correctly selected on
screen display menu. (NTSC Model)
Connecting a PC, TV or VCR,
DVD page 11, 21, 22.
Adjusting the Sound settings,
page 15, 18, 24, 27.
Refer to your computer,
sound card or software
documentation.
Adjusting the Sound Settings,
page 15, 18, 24, 27.
Connecting to watch TV or
VCR, page 21.
Channel Memory, page 28~35.
Selecting Broadcast Source,
page 34.
APPENDIX C : Troubleshooting
If you have a problem setting up or using your LCD monitor, you may be able to solve it yourself.
Before contacting customer service, try the suggested actions that are appropriate to your problem.
What you see...
Suggested Actions
Reference
Screen is blank and
power indicator is off
“CHECK CABLE OR
SIGNAL” message
“INVALID MODE” message
The image is too light
or too dark
Horizontal bars appear to
flicker, jitter or shimmer on
the image
Vertical bars appear to
flicker, jitter or shimmer on
the image.
Screen is blank and power
indicator light is steady
amber or blinks every 0.5 or
1 seconds
Image is not stable and
may appear to vibrate
Image is not centered on the
screen.
Ensure that the power cord is firmly
connected and the LCD monitor is on.
Ensure that the signal cable is firmly
connected to the PC or video sources.
Ensure that the PC or video sources are
turned on.
Check the maximum resolution and the
frequency of the video adaptor.
Compare these values with the data in the
Display Modes Timing Chart.
Adjust the Brightness and Contrast.
Adjust the Clock function.
Auto Tracking will clear it automatically.
Adjust the Phase function and then adjust the
Clock function.
Auto Tracking will clear it automatically.
The monitor is using its power management
system.
Move the computer’s mouse or press a key
on the keyboard
Auto tracking will clear it automatically
Check that the display resolution and
frequency from your PC or video board is
an available mode for your monitor.
On your computer check :
Control Panel, Display, Settings
Horizontal frequency
Vertical frequency
Maximum refresh rate
Auto Position will set the best position
automatically
Adjust the horizontal and vertical position.
Connecting a PC,
page 11.
Connecting a PC, TV or VCR,
DVD, Page 11, 21, 22.
PC Stable Adjustment,
page 20.
APPENDIX D:Display Modes
page 50.
BRIGHTNESS, page 13, 23.
CONTRAST. page 13, 23.
PC Stale Adjustment.
page 20.
APPENDIX A : Power Saver,
page 50.
PC Stable Adjustment,
page 20.
31 KHz - 80KHz
56Hz - 85Hz
1280 * 1024 @75Hz
AUTO POSITION, page 19.
H-POSITION, page 19.
V-POSITION, page 19.
Granvue ET-1801T 1.21 2002.1.22 12:43 PM Page 54
