73
LC-32LE510
LC-40LE510
26. TROUBLESHOOTING
26.1.
No Backlight Problem
Problem: If TV is working, led is normal and there is no picture and backlight on the panel.
Possible causes: 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 MB60, related connectors for
power supply cards.
25. TROUBLESHOOTING
TROUBLESHOOTING
25.1
Summary of Contents for LC-32LE510E
Page 20: ...20 LC 32LE510 LC 40LE510 1 1 General Block Diagram 1 1 General Block Diagram ...
Page 28: ...28 LC 32LE510 LC 40LE510 4 4 Frequency response ...
Page 30: ...30 LC 32LE510 LC 40LE510 5 3 Absolute Ratings 5 3 1 Electrical Characteristics ...
Page 31: ...31 LC 32LE510 LC 40LE510 5 3 2 Operating Specifications ...
Page 32: ...32 LC 32LE510 LC 40LE510 5 4 Pinning ...
Page 34: ...34 LC 32LE510 LC 40LE510 6 3 2 Operating Specifications 6 4 Pinning ...
Page 36: ...36 LC 32LE510 LC 40LE510 Ì µ µ ò Ú ĞÉîê ĞÉîé µ º ò Ú ĞÍïêô ĞÍïéô ĞÍêğ µ µ ò ...
Page 49: ...49 LC 32LE510 LC 40LE510 12 4 Pinning 11 4 ...
Page 50: ...50 LC 32LE510 LC 40LE510 ...
Page 52: ...52 LC 32LE510 LC 40LE510 ...
Page 66: ...66 LC 32LE510 LC 40LE510 23 3 VGA CN132 22 3 ...
Page 69: ...69 LC 32LE510 LC 40LE510 23 3 Options Options Options 1 Options 2 ...
Page 82: ...82 LC 32LE510 LC 40LE510 Notes ...
Page 95: ...95 LC 32LE510 LC 40LE510 PRINTED WIRING BOARD 28 PRINTED WIRING BOARD Main Unit PWB Top Side ...
Page 96: ...96 LC 32LE510 LC 40LE510 NOTES ...
Page 121: ...121 LC 32LE510 LC 40LE510 Notes ...