XOCECO LC20H3D, Service Manual

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Blur picture Check if the antenna cable is correctly connected.
Of if it has received the right video signal.
No sound Check if the “mute” audio frequency setting is selected.
Check if the sound volume is set to minimum.
Make sure the earphone is not connected.
Check if the cable connection is loose.
When playing VHS picture search
tape, there are lines at the top or
bottom of the picture.
When being played or in pause VHS picture search tape
sometimes can’t provide stable picture, which may lead to
incorrect display of the liquid crystal TVIn this case please press
“auto” key on the remote control so as to enable the liquid
crystal TV set to recheck the signal and then to display correct
picture signal
Method of software upgrading
Steps of software upgrading are as follows:
1.Select a serial connection wire and a VGA connection wire and then connect them by means of a
patch panel;
2.Use a serial wire to connect the PC to the patch panel and set TV set to off state;
3.Open the software upgrade file holder and double click
FlashUpgraderNT(use under window 2000/XP/NT)
FlashUpgrader(use under window 98),
The following interfaces will show up after running the program:
Based on the computer features, set up the serial port(COM Port). Select corresponding serial port (if it’s
unable to FLASH WRITE, change to another port). Baud is selected to be 115200. Then select Reset