STUDIO REPAIR » Roland » JD-800 »  Panel Taken Apart     [Image 26 of 40]  :: Jump To  
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Roland JD-800  •  Panel Taken Apart
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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.

Roland JD-800 - Panel PCB * The right one of the two panel PCBs
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Roland JD-800 - Panel Taken Apart - Image by Nikolaus Riehm - Equipment courtesy of Anthony Rother
Roland JD-800 - Slider * …

Roland JD-800 - Power Supply * Classic PSU with integrated linear regulators

Roland JD-800 - H8 Microcontroller * Hitachi H8-Family MCU

Roland JD-800 - System RAM * …

Roland JD-800 - FX Processor * …

Roland JD-800 - FX RAM * Effect processor's RAM

Roland JD-800 - Sharp LCD * …

 
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