Service Manual
Model
Model
Model
Model No.:
No.:
No.:
No.: 75UF5550
75UF5550
75UF5550
75UF5550
Poor sound
Poor sound
Verify if sound system is
correct .
No
Change sound
system
For ease of use, recommend that customer format the picture and
sound settings in the automatic option.
Still having
problems
Updata the software and
make the reboot;
or
change the maiboard
4
4
4
42
2
2
2
