STUDIO REPAIR - Roland MC-202 - Analog Circuitry

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▪ Device:		Roland MC-202
▪ Topic:		Analog Circuitry
▪ Abstract:		Roland's Custom-made BA662 - DC Controlled Variable Transconductance Amplifier (OTA).
▪ Creator:		Image by Nikolaus Riehm
▪ Website:		studiorepair.com
▪ Editor:		Nikolaus Riehm

STUDIO REPAIR » Roland » MC-202 » Analog Circuitry

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Roland MC-202 • Analog Circuitry

Roland's Custom-made BA662 - DC Controlled Variable Transconductance Amplifier (OTA).

Roland MC-202 - Opened / Powered * …

Roland MC-202 - Mainboard * Soldering Side of the Main PCB

Roland MC-202 - Circuit Board * Soldering Side

Roland MC-202 - Deconstructed * From Left to Right: Top Cover, Main Board, Switch Board, Rubber Contacts.

Roland MC-202 - Top Cover * Inside View of the Top Cover with Rubber Contacts Already Placed

Roland MC-202 - CEM3340 VCO * …

Roland MC-202 - Analog Circuitry * Roland's Custom-made IR3109 - Integrated Voltage Controlled Filter (VCF).

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Roland MC-202 - Analog Circuitry - Image by

Roland MC-202 - Microcontroller * A Mask Programmed 8-bit Microcontroller Unit (NEC µPD78C06G).

Roland MC-202 - Digital Circuitry * …

Roland MC-202 - Romantic Resistance * Resistors in Love…

Roland MC-202 - LCD Driver * Panasonic MN1252B CMOS LCD Driver

Roland MC-202 - LCD Disassembled * …

Roland MC-202 - Switch Board * Printed Button Contacts on the Switch Board.

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