Toshiba 40RF350U Service Manual page 14

No or distorted
Audio
Is
Digital Analog
problem associated
with analog or digital
inputs?
Using
Using the power
the power
YES
NO NO YES
distribution diagram,
distribution diagram, are
are the voltages normal
the voltages normal at
at P811?
CN90?
Suspect the
Low B
module.
Using
an oscilloscope, are
Suspect the digital module. This
YES
NO
the selected audio
can be confirmed by using the wiring
signals at pins 14 and
interconnect diagram and an
15 of CN70
oscilloscope and checking the right and
normal?
left audio signals at pins 10 and 11 of
Suspect the
CN70. They will be missing
AV/Tuner
or distorted.
module.
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