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LC-32LE240
LC-40LE240
TROUBLESHOOTING
21. TROUBLESHOOTING
21.1. No Backlight Problem
Problem: If TV is working, led is normal and there is no picture and backlight on the panel.
Possible c
a
uses: Backlight pin, dimming pin, backlight supply, stby on/off pin
Backlight pin should be high in open position. If it is low, please check Q181 and panel
cables.
Dimming pin should be high or square wave in open position. If it is low, please check
S16 for Mstar side and panel or power cables, connectors.
Backlight power supply should be in panel specs. Please check CN705 for MB62, related
connectors for power supply cards.
Summary of Contents for LC-32LE240E
Page 19: ...19 LC 32LE240 LC 40LE240 0 1 General Block Diagram 1 General Block Diagram ...
Page 24: ...24 LC 32LE240 LC 40LE240 2 3 Absolute Ratings 2 3 1 Electrical Characteristics ...
Page 40: ...40 LC 32LE240 LC 40LE240 Pinning 8 3 Pinning ...
Page 52: ...52 LC 32LE240 LC 40LE240 18 2 HDMI CN707 CN708 18 3 VGA CN711 ...
Page 55: ...55 LC 32LE240 LC 40LE240 19 3 Options 19 3 Options Options 1 Options 1 Options 2 Options 2 ...
Page 103: ...103 LC 32LE240 LC 40LE240 NOTES ...