Toshiba 52XV645U Service Manual page 15

No Audio
Using
the remote or
the manual keyboard,
access the audio menu to
NO YES
assure the speakers are on
and the input selection is a
known good source.
Will this restore
audio?
Problem
solved.
Does the
power supply
generate the audio
NO YES
supply voltages (18 VDC)
at pins 3 and 4 of CN90
when the
unit is turned
on?
Replace the
Replace the
power supply
Main module
module.
SMART2009-LCD909-V5 Page 7 of 14