Toshiba Regza 40RF350U, Руководство по обслуживанию

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