STUDIO REPAIR - Roland MKS-80 - Circuit Boards

Picture Content Information
▪ Device:		Roland MKS-80
▪ Topic:		Circuit Boards
▪ Abstract:		All MKS-80 circuit boards are shown here with the two module boards on top of the case frame.
▪ Owner:		Equipment courtesy of Luca Anzilotti of SNAP!
▪ Creator:		Image by Nikolaus Riehm
▪ Website:		studiorepair.com
▪ Editor:		Nikolaus Riehm

STUDIO REPAIR » Roland » MKS-80 / MPG-80 » Circuit Boards

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Roland MKS-80 • Circuit Boards

All MKS-80 circuit boards are shown here with the two module boards on top of the case frame.

Roland MKS-80 - MPG-80 Set * The MKS-80 sound module with its MPG-80 programmer

Roland MKS-80 - Programmer MPG-80 * The MKS-80 with its programmer MPG-80.

Roland MKS-80 - Cover Removed * The CPU board contains a 8051 MCU to control both voice boards as well as all peripherals like buttons, LEDs and the LCD.

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Roland MKS-80 - Circuit Boards - Image by - Equipment courtesy of

Roland MKS-80 - Guts * The CPU board contains a 8051 MCU to control both voice boards as well as all peripherals like buttons, LEDs and the LCD.

Roland MKS-80 - Front Panel Removed * The CPU board contains a 8051 MCU to control both voice boards as well as all peripherals like buttons, LEDs and the LCD.

Roland MKS-80 - CPU Board * The CPU board contains a 8051 MCU to control both voice boards as well as all peripherals like buttons, LEDs and the LCD.

Roland MKS-80 - Board Leaves * The three main PCBs (CPU board and the two voice boards) are stacked but easily accessible.

Roland MKS-80 - Module Board * A revision of the module board with Curtis chips.

Roland MKS-80 - CEM-less Voice Board * Each voice board has its own 8051 Slave-MCU with separate ROM and DAC. This is a latter version with an installed DAC adaptor board and Roland's IR3R03 VCOs - all Curtis CEMs are gone...

Roland MKS-80 - DAC Module Board * This is the DAC adaptor board that Roland used as a substitutive for the origin ITS80141 (a 14-Bit multiplying DAC). It features a MD6205 DAC with some circuitry that makes it pin-for-pin compatible with an ITS80141.

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