Function Troubleshooting - Sharp LC-60LE452U Service Manual

5.4 Function Troubleshooting

5.4.1 Function Troubleshooting（No work）
1.Check the Keyboard
2.Check the Remote control board
1.Repair the timing signal
2.Repair the reset circuit
Update the correct
software
Sharp LC-60LE450U/LC-60LE452U Service manual
No work
NG
1.Keyboard no work
2.R/C no work
Check the voltage
(5V,3.3V,1.8V,1.2V)
NG
1.Check the timing signal
2.Check the reset circuit
3.Check the reset circuit
NG
Check the
software
Change U3
OK
OK
NG
OK
OK
OK
23
Please check the Power
Troubleshooting