Sony DPS-V77 service manual Additional Information, Troubleshooting, ~ Block Diagram, 28F.N, ~CH2

Models: DPS-V77

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Additional Information

Additional Information

Troubleshooting

If this unit docs not operate as expected, the probl.em may

simply be an oversight, a disconnected cable or a setting error. Before calling a service technician, Gom~)are the

symptoms of the problem with those listed below to sec if you can correct the problem yourself.

No sound is heard, or the sound is small .

.. Press BYPASS to cancel mute.

.. When inputting anal(lg signals, check to see ifthe INPUT knob is set to the appropriilte level.

.. When inputting digital signals, check the Input levels in the System: Setup.

.. Check that all the cables ilrc connected correctly.

.. Make sure the appropriate input mode is selected on the System: Setup Input screen. You cannot input ilnalog signals if the input mode is set to "DICTL."

.. Milke sure the effect levels in the mixer block are not

set excessively k)\\',

.. Check the \'olume of the connected an1plifier or mixer.

~Block Diagram

The sound is not modified by the selected effect.

.. Press BYPASS to cancel byp~ss.

.. Is the effect set to "OFF"?

The morphing effect does not work.

.. Milke sure to SA VE the effect after changing the stmcture to IMORPI-!!.

.. Make sure the stmctures of all the dfects you want to morph between arc set to IMORPH I_

The input level CUP indicator lights.

.. Turn INPUT to the left to reducl' lhl' input Iewl.

.. Reduce the output level of the source component.

.. Set the INPUT level selector switch to +4 dB and usc the INPUT adjustment knob to re-adjust the input level.

MIDI operations cannot be carried out.

.. Make sure the MIDI receive channel matches the transmit channel of the MIDI device.

.. Make sure the MIDI control number is set correctly.

.. Make sure the MIDI cable is connected securely_

ANALOG INPUT_ANALOG OUTPUT

 

 

 

 

BYPASS LINE (ANALOG)

~CH1

 

 

 

 

 

 

BALANCED

 

 

 

 

 

 

 

 

 

 

 

 

~CH2

DIGITAL

INPUT SW (AUTO)

 

 

 

 

 

 

 

 

IN/OUT

 

 

'I

 

 

~

 

 

 

 

 

~I

 

 

 

 

 

 

 

 

 

 

~lIlIlIIlIllIIlIlIlIIlIglIIlIlIIlIIlIlIlIlIlI'M

 

 

 

 

 

M) ---------- l

 

 

, ,

MIDI OUTfTHRU

 

 

 

M' -------

I cpu

 

 

PEDAL IN 1

 

 

 

 

 

 

 

 

 

 

 

 

PEDAL IN 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28F.N

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Sony DPS-V77 service manual Additional Information, Troubleshooting, ~ Block Diagram, 28F.N, ~CH2