Sharp LC-60LE452U User Manual

Sharp LC-60LE450U/LC-60LE452U Service manual
22
5.3 Audio Troubleshooting（No Sound）
OK
Check the signal between
CPU and amplifier IC
NG
OK
NG
Change U2
1. Repair the circuit between
CPU and amplifier IC
2. Change U2
Change or Debug
the Audio input
OK
Check the Audio
input
NG
Check if it is
on Mute
OK
Turn off Mute
OK
Check J8 Audio output
NG
1.Check the connection of
. speaker cables
2.Check the speakers
Check the voltage
(12V) of U2
NG
Repair the voltage (12V)
circuit of U2
OK
1. Check the voltage (12V) of Pin 15.16 of U2
2. Check the voltage (12V) of Pin 27.28 of U2
NG
3. Repair the circuit of Pin
15.16.27.28 of U2
4. Change U2

Sharp LC-60LE452U Specifications

General

Brand	Sharp
Model	LC-60LE452U
Category	LED TV
Language	English