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File:Marantz SD-60 main audio PCB - NEC uPC1297 Dolby HX Pro IC.jpg

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Description
English: Marantz SD-60 main audio PCB - NEC uPC1297 Dolby HX Pro IC with associated components. The stereo circuit modulates two AC bias currents and injects them into the recording head via two small push-pull transformers (next to pins 9 and 10). This is a rare example of user-defeatable HX Pro; more often, the circuit is hard-wired into the recording chain and cannot be turned off.
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Source Own work
Author Retired electrician
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Marantz SD-60 main audio PCB - NEC uPC1297 Dolby HX Pro IC

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26 December 2021

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Date/TimeThumbnailDimensionsUserComment
current03:27, 27 December 2021Thumbnail for version as of 03:27, 27 December 20212,406 × 2,406 (1.23 MB)Retired electricianUploaded own work with UploadWizard

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