STUDIO REPAIR - Roland JD-800 - PCBs

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▪ Device:		Roland JD-800
▪ Topic:		PCBs
▪ Abstract:		…
▪ Owner:		Equipment courtesy of deep!sonic
▪ Creator:		Image by dr.squ @ deep!sonic
▪ Website:		www.deepsonic.ch
▪ Editor:		Nikolaus Riehm

STUDIO REPAIR » Roland » JD-800 » PCBs

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Roland JD-800 • PCBs

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Roland JD-800 - LC Display * …

Roland JD-800 - Guts * …

Roland JD-800 - PCBs * …

Roland JD-800 - Panel PCB * The left one of the two panel PCBs

Roland JD-800 - Card Slot * …

Roland JD-800 - Guts * …

Roland JD-800 - Opened * …

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Roland JD-800 - PCBs - Image by - Equipment courtesy of

Roland JD-800 - Main Board * …

Roland JD-800 - Opened * …

Roland JD-800 - Panel Taken Apart * …

Roland JD-800 - Jack PCB * The jack PCB contains all analog circuitry and the PCM61 DAC.

Roland JD-800 - DAC * The Burr-Brown/TI PCM61 18-bit DAC

Roland JD-800 - DAC Adjustment * Probing the test signal that the JD-800 generates during its DAC adjustment procedure. The DSO is a HP 54645D.

Roland JD-800 - DAC Adjustment * This is the sinus test signal that the JD-800 generates during its DAC adjustment procedure - you have to adjust it to the best sounding result without distortion. Screencopy shot from a HP 54645D digital storage oscilloscope.

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