Yamaha DX7 II-D manual

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A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Yamaha DX7 II-D, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

What is an instruction?

The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Yamaha DX7 II-D one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

Unfortunately, only a few customers devote their time to read an instruction of Yamaha DX7 II-D. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.

What should a perfect user manual contain?

First and foremost, an user manual of Yamaha DX7 II-D should contain:
- informations concerning technical data of Yamaha DX7 II-D
- name of the manufacturer and a year of construction of the Yamaha DX7 II-D item
- rules of operation, control and maintenance of the Yamaha DX7 II-D item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Yamaha DX7 II-D alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Yamaha DX7 II-D, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Yamaha service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Yamaha DX7 II-D.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Yamaha DX7 II-D item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 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[...]

  • Page 2

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

  • Page 3

    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 soldered Battery[...]

  • Page 4

    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[...]

  • Page 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 th e plastic for the FDD Connector[...]

  • Page 6

    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’ve solder a Power cable for make the first tests[...]

  • Page 7

    I’ve connect the Floppy Disk to the Ma in Board of my Yamaha DX7 II-D Upgrade Done !!![...]

  • Page 8

    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[...]

  • Page 9

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

  • Page 10

    FD Label DISK Label[...]