Yamaha DX7 II-D user manual

Device: Yamaha DX7 II-D

Category: Electronic Keyboard

Manufacturer: Yamaha

Size: 1.58 MB

Added : 6/8/2014

Number of pages: 10

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Yamaha DX7 II-D User manual - Online PDF

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Summaries

Below you will find previews of the content of the user manuals presented on the following pages to Yamaha DX7 II-D. If you want to quickly view the content of pages found on the following pages of the manual, you can use them.

Abstracts of contents

Summary of the content on the page No. 2

I’ve open my Yamaha DX7 II-FD and we can see a soldered Battery I’ve remove the EPROM with Operating System

Summary of the content on the page No. 3

I’ve program one new EPROM 27C512 with my Personal Computer I’ve remove the soldered ROM in my Yamaha DX7 II-D and remove solder in holes for IC5, IC6, IC22, IC24 and CN1, we can also see a soldered Battery

Summary of the content on the page No. 4

I’ve remove the Battery socket and the plastic (only the plastic) from the FDD Controller on an old PC Mother Board I’ve remove the Western Digital FDD Controller from one old ATARI 520STFM

Summary of the content on the page No. 5

We must take care to not destruct IC and the Atari Mother Board After soldering the dual in line FDD connector I’ve insert the plastic for the FDD Connector

Summary of the content on the page No. 6

I’ve insert and solder 5 IC sockets, remove the Battery and insert the Battery socket removed from the PC Main Board. Then I’ve insert the 4 IC and the EPROM with the new Operating System I’ve solder a Power cable for make the first tests

Summary of the content on the page No. 7

I’ve connect the Floppy Disk to the Main Board of my Yamaha DX7 II-D Upgrade Done !!!

Summary of the content on the page No. 8

I’ve insert the removed EPROM in my Yamaha DX7 II-FD and my Battery is into a socket I must make a hole for the Floppy and a little mechanic and a good Power Cable for FDD

Summary of the content on the page No. 9

New Floppy Disk mounts. I must still make a short flat cable and a good FDD Power Cable. Final Result.

Summary of the content on the page No. 10

FD Label DISK Label

Summary of the content on the page No. 1

Upgrade your Yamaha DX7 II-D to Yamaha DX7 II-FD

February 2009 By CloudsWalker www.cloudswalker.com

Missing Parts on the Yamaha DX7 II-D :

IC5 Integrated Circuit 16 pin DIL : TC40H174P
6 x D-Flip-flop, can be replaced by 74HC174

IC6 Integrated Circuit 14 pin DIL : 7405 (TTL)

IC22 Integrated Circuit 28 Pin DIL : HM65256BLP12
SRAM, can be replaced by HM62256LP12 or equivalent

IC23 EPROM 27512 or 27C512 for the new Operating System

IC24 Integrated Circuit 28 Pin DIL : WD17

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