Denon DBP-2012UDCI, Руководство по обслуживанию

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3. MAIN UNIT
3.1 Video out doesn't output.
Check power supply.
・ Check the power supply (+5V_AV) of U20.
・ Check soldering (U702, U20).
・ Check the power supply voltage of
U702(1pin(+12VA)).
Check input signal to [U20].
・ Is data input to 6pin?
・ Are +3.3V supplied to 1pin?
・ Check soldering (U20, U100, U20(1pin and 6pin)
and surrounding circuitry).
END
NO
YES
Check output terminal.
・ Is data output from the VIDEO OUT terminal of
J861? ・ Check soldering (J816 and surrounding circuitry).
NO
NO
NO
YES
YES
YES
Check output signal from [U20].
・ Is data output from 27pin?
・ Check soldering (U20, U20(27pin) and surrounding
circuitry).