Yamaha DX7 II-D دليل المستخدم

ملخص المحتوى في الصفحة رقم 2

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

ملخص المحتوى في الصفحة رقم 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

ملخص المحتوى في الصفحة رقم 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

ملخص المحتوى في الصفحة رقم 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

ملخص المحتوى في الصفحة رقم 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

ملخص المحتوى في الصفحة رقم 7

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

ملخص المحتوى في الصفحة رقم 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

ملخص المحتوى في الصفحة رقم 9

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

ملخص المحتوى في الصفحة رقم 10

FD Label DISK Label

ملخص المحتوى في الصفحة رقم 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