Sharp LC-60LE452U - Page 28

Sharp LC-60LE450U/LC-60LE452U Service manual
28
5.4.6 Function Troubleshooting（USB，SPDIF）
Check if there are
multimedia files in
USB disk
USB No signal
Repair the
USB circuit (5V)
OK
Change U3
OK
NG
Put the correct
multimedia files
in USB disk
OK
NG
Check USB
CONNECT
OR
OK
Change USB
connector
NG
Check the USB
voltage (5V)
OK
Repair the USB
circuit (5V)
Check USB
circuit
NG
SPDIF No signal
Check SPDIF
connector
NG
OK
Change
SPDIF cable
Check SPDIF
cable
NG
OK
NG
Check SPDIF
signal input
OK
Change U3
Debug SPDIF
signal input
OK
Repair SPDIF
circuit
Check SPDIF
circuit
NG
OK
Change SPDIF
connector