STUDIO REPAIR - MFB-502 - Microcontroller No.2

Picture Content Information
▪ Device:		MFB-502
▪ Topic:		Microcontroller No.2
▪ Abstract:		The second Atmel AT89C4051 MCU (beside the neat 7805 PSU)
▪ Owner:		Equipment courtesy of Fichotron
▪ Creator:		Image by Nikolaus Riehm
▪ Website:		www.studiorepair.com
▪ Editor:		Nikolaus Riehm

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MFB-502 • Microcontroller No.2

The second Atmel AT89C4051 MCU (beside the neat 7805 PSU)

MFB-502 - Front Panel * Front Panel

MFB-502 - Circuit Board * Component side

MFB-502 - Circuit Board * Solder Side

MFB-502 - View * …

MFB-502 - Microcontroller No.1 * One of two Atmel AT89C4051 80C31-based 8-bit MCUs with 4kB flash and a Philips TDA8444 octuple 6-bit DAC (I²C-bus)

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MFB-502 - Microcontroller No.2 - Image by - Equipment courtesy of

MFB-502 - Output OpAmps * Texas Instruments TL062C dual JFET-input operational amplifiers

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