STUDIO REPAIR - Yamaha TX802 - Main Board

Picture Content Information
▪ Device:		Yamaha TX802
▪ Topic:		Main Board
▪ Abstract:		…
▪ Owner:		Equipment courtesy of Wallysworld
▪ Creator:		Image by Nikolaus Riehm
▪ Website:		studiorepair.com
▪ Editor:		Nikolaus Riehm

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Yamaha TX802 • Main Board

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Yamaha TX802 - Front Panel * Keypad

Yamaha TX802 - Display * Test Program ROM Version 1.3 - TEST V1.3 27-OCT-87 / Push ENTER

Yamaha TX802 - Display * Test Program ROM Version 1.5 - TEST V1.5 17-JUN-88 / Push ENTER

Yamaha TX802 - Front Panel * LC Display Module & Tone Generator / Parameter Select Buttons

Yamaha TX802 - Jack Board * …

Yamaha TX802 - Jack Board * …

Yamaha TX802 - Jack Board * …

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Yamaha TX802 - Main Board - Image by - Equipment courtesy of

Yamaha TX802 - Main Board * Master CPU Hitachi HD63B03YP-N (XD245001)

Yamaha TX802 - Main Board * Master CPU Hitachi HD63B03YP-N (XD245001) w/ EPROMs and RAMs

Yamaha TX802 - Tone Generator * Burr-Brown PCM54 16-Bit DAC, YM2604 OPSII FM Operator, YM3609 Envelope Generator & Slave CPU Hitachi HD63C03YP

Yamaha TX802 - D/A Converter * Burr-Brown PCM54HP 16-Bit D/A Converter

Yamaha TX802 - Analog Circuitry * Analog De-Multiplexer and Sample & Holds for Individual Channel Outputs

Yamaha TX802 - Mix-Bus Circuitry * Mix-Bus Crossbar Built of 4 JRC NJU7301D Quad CMOS SPST Analog Switches & Resistor Arrays

Yamaha TX802 - Backup Battery * CR2032 w/ 2 Solder Pins @ 15 mm Spacing

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