Instruction/ maintenance manual of the product DX7 II-D Yamaha
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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.
I’ve open my Yamaha DX7 II-FD and we can see a soldered Battery I’ve remove the EPROM with Operating System.
I’ve program one new EPROM 27C 512 with my Personal Computer I’ve remove the soldered ROM in m y Yamaha DX7 II-D and remove solder in holes for IC5, IC6, IC22, IC24 and CN1, we can also see a sold.
I’ve remove the Battery socket and the plas tic (only the plastic) from the FDD Controller on an old PC Mother Board I’ve remove the W estern Digital FDD C ontroller from one old ATARI 520STFM.
We must take care to not destruct IC and the Atari Mother Board After soldering the dual in line FDD connector I’ ve insert th e plastic for the FDD Connector.
I’ve insert and solder 5 IC sockets, remove th e Battery and in sert the Battery socket removed from the PC Main Board. Then I’ve insert the 4 IC and the EP ROM with the new Operating System I’v.
I’ve connect the Floppy Disk to the Ma in Board of my Yamaha DX7 II-D Upgrade Done !!!.
I’ve insert the removed EPROM in my Yam aha DX7 II-FD and my Battery is into a so cket I must make a hole for the Floppy and a littl e mechanic and a good Power Cable for FDD.
New Floppy Disk mounts. I must still make a short flat cable and a good FDD Power Cable. Final Result..
FD Label DISK Label.
An important point after buying a device Yamaha DX7 II-D (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Yamaha DX7 II-D yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Yamaha DX7 II-D - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Yamaha DX7 II-D you will learn all the available features of the product, as well as information on its operation. The information that you get Yamaha DX7 II-D will certainly help you make a decision on the purchase.
If you already are a holder of Yamaha DX7 II-D, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Yamaha DX7 II-D.
However, one of the most important roles played by the user manual is to help in solving problems with Yamaha DX7 II-D. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Yamaha DX7 II-D along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
