Yamaha CD-1050 Service manual for PCM56P NOS - diyAudio
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Old 6th May 2013, 04:11 AM   #1
focal7C is offline focal7C  Australia
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Default Yamaha CD-1050 Service manual for PCM56P NOS

Do you have or know where I can find a CD-1050 service manual?

Looking to do a NOS conversion. It has dual PCM56P DACs and what appears to be a discrete output section (no opamps visible on top of PCB).

The YM3414 (2-Channel 8-Times Oversampling Digital Filter) is currently in place.
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Old 3rd June 2013, 12:14 PM   #2
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Location: Minsk
CD-1050 - it is clone of CDX-520
OpAmp - it is IC120 - located near the analog outputs.
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Old 5th November 2013, 10:00 AM   #3
focal7C is offline focal7C  Australia
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Default OpAmp replacement

What case style is that IC120 position OpAmp?

Are there any newish and better OpAmps that are available as a straight swap.

Or is the OpAmp 8 pin and can it be replaced with a more common DIP OpAmp? Maybe even one side of a DIL OpAmp will align with the PCB holes and only the four other pins need to be straight wired?
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