STUDIO REPAIR » Roland » JD-990 »  Power Supply     [Image 15 of 30]  :: Jump To  
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Roland JD-990  •  Power Supply
Roland JD-990 - Display * Maintenance & Repair - OS Update from Version 1.00 to 1.05

Roland JD-990 - Display * Test Mode - LCD Test

Roland JD-990 - Opened * …

Roland JD-990 - Main Board * …

Roland JD-990 - Opened * …

Roland JD-990 - Jack Board * Analog Circuit Board - Component Side

Roland JD-990 - Jack Board * Analog Circuit Board - Soldering Side

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Roland JD-990 - Power Supply - Image by Nikolaus Riehm
Roland JD-990 - Power Supply * Voltage Regulators & Rectifier

Roland JD-990 - Power Supply * …

Roland JD-990 - Circuit Board * Hitachi H8/570 Mask-ROM Microcontroller

Roland JD-990 - Circuit Board * OS ROM - Hitachi HN27C4096 262144-Word×16-Bit EPROM (4MBit/512kByte)

Roland JD-990 - Circuit Board * Roland MB87731A ASIC (EP Chip)

Roland JD-990 - Circuit Board * Roland MB87424APF-G-LBND ASIC (TVF Chip)

Roland JD-990 - Circuit Board * HG62E11B24FS Gate Array for Card I/O



 
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