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TROUBLESHOOTING (17MB95M)
A. NO BACKLIGHT PROBLEM
Problem: If TV is working, led is normal and there is no picture and backlight on the panel.
Possible couses: Backlight pin, dimming pin, backlight supply, stby on/off pin
BACKLIGHT_ON/OFF pin should be high when the backlight is ON. R119 must be low when the backlight is
OFF. If it is a problem, please check Q10 and the panel cables. Also it can be tested in TP50 in main board.
Dimming pin should be high or square wave in open position. If it is low, please check S60 for Mstar side and
panel or power cables, connectors.
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