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2
2
No yes
Yes no
yes no
Note:It is after the changeover by external audio switch that the audio signal of high
definition, DVI and VGA channels enters MSP3410 through. Therefore if the audio signal of
the channels above is in trouble, it is necessary to check the peripheral circuit of N704 on
the data processing board as well as the power supply.
5.A certain channel works abnormally
a). No picture in AV
yes no
yes no
Check if 1
st
and 2
nd
pin
of N203 has signal input
Check on peripheral circuit of power
amplifier and power supply
Check N203
peripheral circuit of
power amplifier and
power supply
Check if
relevant channel
of N201 has
signals input
Check peripheral circuit of
N201,crystal oscillation and power
supply
Check all levels of circuit following the
channel of audio signal input
Check if C193 has
signal input
There is trouble in the
channel form AV socket to
N101
Check if line/field syn. signal and
clock signal output from N101 are
normal.
Check peripheral
circuit of N601,
power supply
Check peripheral circuit of
N101, crystal oscillation,
power supply
Содержание BSV-2751
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