Hitachi LE42S605, Manual

Page: 14 / 99

LE42S605/LE46S605
14
3). No Sound, Sound Failed (Loading Interrupt, Noise, Etc.)
First, confirm the connection of all connectors between Board's and speakers, then survey by following the flowchart
as shown below.
No Sound, Sound failed
(Loading interruption,
Noise, etc)
Occurred at only
Video input (CVBS)?
Main Board
No
Yes
Main Board or Speaker units
Voltage of
pin No.3 or 4 of CN701 on
Main Board is 12V?
Power Board
No
Yes