Troubleshooting; No Backlight Problem - Sharp LC-32LE510E Service Manual

25. TROUBLESHOOTING

26. TROUBLESHOOTING
25.1
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.
TROUBLESHOOTING
73
LC-32LE510
LC-40LE510