DX7 Schematics

Downloads for the Yamaha DX7 and TX7 module

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AndyHornBlower
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DX7 Schematics

Unread post by AndyHornBlower »

Schematics for the Yamaha DX7, presumably Mark 1. I've indexed a few points on the diagram, but the bookmarks might work slightly differently in other PDF readers. I used Foxit Reader 3.1.something (an old version).
DX7_SCHEMATICS_text.pdf

Foxit Reader 3.1.something can be downloaded from here:

download/file.php?id=3474

It may offer to install some crapware - just say no. Apart from that it, it's fine, and I've used it for years.

See also:

DX7 & DX9 Service Manual
viewtopic.php?f=154&t=11196
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Miks
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Re: DX7 Schematics

Unread post by Miks »

I've spent countless hours over several weeks and 'reworked' the DX7 Mk.I schematic - hope someone likes it & finds it helpful... :D

I've improved the schematic a bit AND found a 'connection' that's NOT correct:
NO connection.jpg
So please download this improved version (released 07/22/2020):
DX7 Schematic - Large.pdf
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My (key related) gear (in alphabetical order):
Ferrofish: B4000+
Kawai: K1 II
Korg: M1 (up'd to EX, w/ 'Cool Blue'), M1REX (w/ 'Cool Blue'), Poly-800
Roland: D-50, D-110, D-550, PG-1000
Yamaha: AW1600, DX7IID (w/ 'Cool Blue'), EX5R, RM50, RX5, SY99 (w/ 'Cool Blue'), TG500, TX-802, YMM2
Sector101: SYEMB05 (5x), SYEMB06 (3x), EXFLM2 (1kit), MCD Sweet16 (1x), DataBlade32 (1x), WaveBlade 8MB Card (1x) & 1x Programmer Unit for WaveBlade
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Re: DX7 Schematics

Unread post by javelin276 »

Thanks Guys! I needed info on the Breath Controller circuit, and there it is!


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Re: DX7 Schematics

Unread post by AndyHornBlower »

Miks wrote: Wed May 27, 2020 1:00 pm I've spent countless hours over several weeks and 'reworked' the DX7 Mk.I schematic - hope someone likes it & finds it helpful as well... :D
DX7 Schematic - Large.pdf
I'm asked for a password when I try to open it. Should I be?

:confusion-confused:


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Miks
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Re: DX7 Schematics

Unread post by Miks »

AndyHornBlower wrote: Wed May 27, 2020 4:40 pm
Miks wrote: Wed May 27, 2020 1:00 pm I've spent countless hours over several weeks and 'reworked' the DX7 Mk.I schematic - hope someone likes it & finds it helpful as well... :D
DX7 Schematic - Large.pdf
I'm asked for a password when I try to open it. Should I be?

:confusion-confused:
Really :?: :?: :?: I've set NO passwort - you should be able to open it after the download just by a double-click...


My (key related) gear (in alphabetical order):
Ferrofish: B4000+
Kawai: K1 II
Korg: M1 (up'd to EX, w/ 'Cool Blue'), M1REX (w/ 'Cool Blue'), Poly-800
Roland: D-50, D-110, D-550, PG-1000
Yamaha: AW1600, DX7IID (w/ 'Cool Blue'), EX5R, RM50, RX5, SY99 (w/ 'Cool Blue'), TG500, TX-802, YMM2
Sector101: SYEMB05 (5x), SYEMB06 (3x), EXFLM2 (1kit), MCD Sweet16 (1x), DataBlade32 (1x), WaveBlade 8MB Card (1x) & 1x Programmer Unit for WaveBlade
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AndyHornBlower
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Re: DX7 Schematics

Unread post by AndyHornBlower »

Yes, really.

I'm still using Foxit Reader 3.x, so maybe it's not compatible, but that almost never happens. Being asked for a password when there isn't one set, is not something I'm used to.

I get this prompt:

pw.gif

Entering a blank password didn't work.
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Miks
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Re: DX7 Schematics

Unread post by Miks »

That's odd! I've downloaded the file I've uploaded just to see if and what's wrong - absolutely no problem, no password required...

javelin276, how about you? Have you been asked to enter a password when trying to open the pdf file?


My (key related) gear (in alphabetical order):
Ferrofish: B4000+
Kawai: K1 II
Korg: M1 (up'd to EX, w/ 'Cool Blue'), M1REX (w/ 'Cool Blue'), Poly-800
Roland: D-50, D-110, D-550, PG-1000
Yamaha: AW1600, DX7IID (w/ 'Cool Blue'), EX5R, RM50, RX5, SY99 (w/ 'Cool Blue'), TG500, TX-802, YMM2
Sector101: SYEMB05 (5x), SYEMB06 (3x), EXFLM2 (1kit), MCD Sweet16 (1x), DataBlade32 (1x), WaveBlade 8MB Card (1x) & 1x Programmer Unit for WaveBlade
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javelin276
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Re: DX7 Schematics

Unread post by javelin276 »

Nope, no password required. It opened right up!


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Re: DX7 Schematics

Unread post by AndyHornBlower »

Fair enough. I expect it's all part of Adobe's :twisted: plan to make everyone use their reader, even though it's meant to be an open standard.

I'm reluctant to install that again, but I'll have another look for alternatives, soon.


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Miks
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Re: DX7 Schematics

Unread post by Miks »

I've used a program named PDF24 to make a pdf out of the schematic - never had any problems by doing so. A double-click and the pdf file gets opened by Adobe Reader DC I have installed...

Edit: Andy, please try again, I've swapped the above pdf file. Let me know if it works for you this time...


My (key related) gear (in alphabetical order):
Ferrofish: B4000+
Kawai: K1 II
Korg: M1 (up'd to EX, w/ 'Cool Blue'), M1REX (w/ 'Cool Blue'), Poly-800
Roland: D-50, D-110, D-550, PG-1000
Yamaha: AW1600, DX7IID (w/ 'Cool Blue'), EX5R, RM50, RX5, SY99 (w/ 'Cool Blue'), TG500, TX-802, YMM2
Sector101: SYEMB05 (5x), SYEMB06 (3x), EXFLM2 (1kit), MCD Sweet16 (1x), DataBlade32 (1x), WaveBlade 8MB Card (1x) & 1x Programmer Unit for WaveBlade
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AndyHornBlower
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Re: DX7 Schematics

Unread post by AndyHornBlower »

That one works fine. Thanks, Miks (Y)


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Miks
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Re: DX7 Schematics

Unread post by Miks »

My pleasure... 8)


My (key related) gear (in alphabetical order):
Ferrofish: B4000+
Kawai: K1 II
Korg: M1 (up'd to EX, w/ 'Cool Blue'), M1REX (w/ 'Cool Blue'), Poly-800
Roland: D-50, D-110, D-550, PG-1000
Yamaha: AW1600, DX7IID (w/ 'Cool Blue'), EX5R, RM50, RX5, SY99 (w/ 'Cool Blue'), TG500, TX-802, YMM2
Sector101: SYEMB05 (5x), SYEMB06 (3x), EXFLM2 (1kit), MCD Sweet16 (1x), DataBlade32 (1x), WaveBlade 8MB Card (1x) & 1x Programmer Unit for WaveBlade
User avatar
Miks
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Re: DX7 Schematics

Unread post by Miks »

Improved version of the DX7 schematic released (07/22/2020) - see here:

viewtopic.php?p=90769#p90769


My (key related) gear (in alphabetical order):
Ferrofish: B4000+
Kawai: K1 II
Korg: M1 (up'd to EX, w/ 'Cool Blue'), M1REX (w/ 'Cool Blue'), Poly-800
Roland: D-50, D-110, D-550, PG-1000
Yamaha: AW1600, DX7IID (w/ 'Cool Blue'), EX5R, RM50, RX5, SY99 (w/ 'Cool Blue'), TG500, TX-802, YMM2
Sector101: SYEMB05 (5x), SYEMB06 (3x), EXFLM2 (1kit), MCD Sweet16 (1x), DataBlade32 (1x), WaveBlade 8MB Card (1x) & 1x Programmer Unit for WaveBlade
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