User's Manual
Troubleshooting
If the TV seems to have a problem, follow the list of possible problems and
solutions presented below. If none of these troubleshooting tips applies, call
your nearest service center.
1. TV Troubleshooting
•
Poor picture or sound quality
─
Check all wire connections & adjust the antenna.
─
In the areas of poor TV reception conditions or of long distance from TV
stations, you can have quality problems in the image and sound received.
•
No picture or sound
─
Make sure that the TV is plugged in and check the antenna connections.
─
Check its input source such as PC, TV, Composite, S-Video.
•
Screen with lines or unstable image
─
Check if there is an appliance in use disturbing electric
waves.(radiophone, hair drier, electric drill, etc.)
─
Do fine tuning by manual adjustment.
•
Unable to receive certain channels
─
Check if the channel is set correctly.
─
Redirect the antenna by moving it right and left.
•
Picture without sound
─
Press MUTE button
─
Control the volume
2. PC Monitor Troubleshooting
•
No image on the screen
─
The VGA cable should be connected completely to the TV and computer.
─
The display card should be inserted fully in its slot.
─
Power switch of both PC and TV should be turned on.
─
Make sure that a supported mode has been selected on the display card
or system in use.
─
Modify the graphic card mode properly referring to the table of standard
signal modes presented in the previous page.
─
Check if VGA cable pin is not bent or took off.
2.The Standard Signal Mode for PC Monitor
If the signal from the system corresponds to the standard signal mode, the
screen is adjusted automatically. However, if the signal discords with it, the
screen may go blank with the power LED on or display <Out of Range> error
message.
Refer to the display card manual and adjust the screen as follows.
Resolution Horizontal Vertical Clock Sync Polarity
(H x V) Frequency(KHz) Frequency(Hz) Frequency(MHz) (H/V)
640 x 480 3 1 . 4 6 9 5 9 . 9 4 2 5 . 1 7 5 - / -
640 x 480 3 5 6 6 . 6 6 3 0 . 2 4 - / -
640 x 480 3 7 . 8 6 1 7 2 . 8 0 9 3 1 . 5 - / -
640 x 480 3 7 . 5 7 5 3 1 . 5 - / -
720 x 400 3 1 . 4 6 9 7 0 . 0 8 7 2 8 . 3 2 2 - / +
800 x 600 3 7 . 8 7 9 6 0 . 3 1 7 4 0 + / +
800 x 600 4 8 . 0 7 7 7 2 . 1 8 8 5 0 + / +
800 x 600 4 6 . 8 7 5 7 5 4 9 . 5 + / +
1024 x 768 4 8 . 3 6 3 6 0 . 0 0 4 6 5 - / -
1024 x 768 5 6 . 4 7 6 7 0 . 0 6 9 7 5 - / -
1024 x 768 6 0 . 0 2 3 7 5 . 0 2 9 7 8 . 7 5 + / +
1280 x 768(the best) 4 7 . 7 1 2 6 0 . 0 1 5 8 0 . 1 3 6 - / +
✽
The table of standard signal modes presented above shows only primary mode
suitable for each resolution level concerned. In most of the cases, the
resolution degrees up to WXGA (1280*768), whether they are included in the
table or not, are adjusted automatically to their best suitable signal mode
without additional adjustment by PC graphic card. If the resolution is not
adjusted automatically, please set graphic card’s output mode to signal mode.
✽
If your PC graphic card does not support resolution 1280*768, please reinstall
it by downloading the newest driver from graphic card manufacturer and
setting it to resolution 1280*768, vertical frequency 60Hz, color 16 or 24 bites.
✽
The present unit has Plug and Play function. The computer perceives the
monitors as “Basic Monitor”, “Plug and Play Monitor” or “LCD Monitor”.
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DCM -1 7 WT