Sharp LC-60LE452U

Sharp LC-60LE450U/LC-60LE452U Service manual
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5.4 Function Troubleshooting
5.4.1 Function Troubleshooting（No work）
No work
1.Keyboard no work
2.R/C no work
NG
Check the
software
OK
Update the correct
software
OK
OK
Change U3
NG
1.Check the Keyboard
2.Check the Remote control board
OK
NG
Check the voltage
(5V,3.3V,1.8V,1.2V)
Please check the Power
Troubleshooting
NG
1.Check the timing signal
2.Check the reset circuit
3.Check the reset circuit
1.Repair the timing signal
2.Repair the reset circuit
OK