Toshiba 47HL167 Service Manual page 14

No or distorted
Audio
Is
Digital Analog
problem associated
with analog or digital
inputs?
Using
Using the power
the power
distribution diagram,
YES
NO NO YES
distribution diagram, are
are the voltages normal
the voltages normal at
at P812A and
CN90A and
P812B?
CN91B?
Suspect the Suspect the
Suspect the digital module. This
Low B Tuner
module. module.
can be confirmed by using the wiring
interconnect diagram and an oscilloscope
and checking the right and left audio
signals at CN71.
13