BNC No screen
4
5
Does proper +5V at FT602?
Does proper 5V appear at Pin 5,6,7
and 8 of IC5709 ?
Check power board.
*Refer to 1.no power
(previous page)
NO
YES
Check LED on
after pushing the power button.
NO
Check cable connection.
YES
Connect BNC cable
NO
Does the picture ?,? appear at Pin 4 (H-sync)
10 (V-sync) of IC104
YES
IC104 defect change main board.
NO
Does the picture ?,? appear at Pin 1 (H-sync)
8 (V-sync) of IC105
YES
IC105 defect change main board.
NO
Panel defect.
Replace LCD Panel.
YES
4
5
4
5
Trouble Shooting
Trouble Shooting
CN102
R146,147,148
뒷면
FT602
BD11~13
IC107
IC104
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