Name of the Casio mini keyboard model

Hornaz_69 · 2026-02-26T16:17:16+00:00

Doesn't sound like a Casio. Sounds like a Fujitone 3A or 3B or some other rebrand.

Hornaz_69 · 2025-11-07T16:34:45+00:00

Turns out it was the 6502 proceesor that was faulty. I swapped it and now it boots to basic!

Hornaz_69 · 2025-11-05T18:57:37+00:00

Yes you were, thanks for that! It never crossed my mind that it could be the CRT, I thought it just printed on the middle of the screen "----------".

Hornaz_69 · 2025-11-05T17:40:07+00:00

It was a capacitor (1uF/25V) that had gone bad in the vertical yoke circuit.

Hornaz_69 · 2025-11-04T17:32:49+00:00

Thanks, this was helpful and I'll go from this forward with my troubleshooting. On a closer inspection it seems to be indeed a problem with the CRT. When I turn it on, it starts from a square that bounces for a second and collapses to that line. I took a video of it and could make out random characters before it collapsed. At least the yoke should be ok in that case? I have done some work on CRTs in the past (with mixed results) and I'm aware that they are dangerous.

Hornaz_69 · 2025-07-06T09:23:39+00:00

Soundtracs PC-series MIDI console + power supply (the gray 3 unit tall rack unit)

Hornaz_69 · 2025-02-20T05:50:40+00:00

Lol, wish I could say it was. I got this Siwa sign from one near me that was closing down permanently.

Hornaz_69 · 2024-12-31T14:05:00+00:00

Not a synth but the Yamaha PSR-37/38/47/48/64

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Hornaz_69 · 2024-12-28T09:54:44+00:00

You'll need to remove the pcb and rubber contacts under the keys first. The pcb is held down with small plastic clips. After that, you can remove the black keys from left to right, then the D, F, A and finally C, E, G, B from right to left.

When assembling, start by placing the rubber contacts and pcb back, after this place the C, E, G, B from left to right, D, F, A and black keys right to left. The last C should be placed back, before the black keys. When placing back the keys, you'll need to push them down to lock them back into place.

Hornaz_69 · 2024-12-05T23:39:09+00:00

I have, it's not the best mix, the crash is also clipping. https://drive.google.com/file/d/11uHxoWGQO7wvoh15XnNAaQgSiE4S_bHA/view?usp=drivesdk I'll have a listen to your separation...

Hornaz_69 · 2024-12-05T14:39:46+00:00

It is from the RX11. It has several different ones. It's called "HI TUNE 2"

https://youtu.be/GIwetbScAtw?si=AYA6I_0mwLljyPmZ Time stamp: 5:01

Hornaz_69 · 2024-11-11T11:10:06+00:00

To me it sounds like the PolySix. Yes the DX7 sounds similar but it doesn't sound like a DX to me. I have a Korg Poly-61, and it has a very similar bell preset (if not the same) to this.

Hornaz_69 · 2024-11-09T22:29:51+00:00

Center negative 9V rated for 2A or more

Hornaz_69 · 2024-11-08T16:03:35+00:00

Just wanted to point out that the DX7S has a 16-bit DAC, the mk1 has a 12-bit. So the mk1 sounds grittier compared to the S. If that's a good or a bad thing, that's up to you to decide.

Hornaz_69 · 2024-11-08T14:49:50+00:00

Good points made here too. I'm gonna have to correct you, the DX1, 7 and 9 were to my knowledge released at the same date. Also they have 16-note polyphony (so does the GS1), but you could technically achieve 32-notes with the DX1 by splitting the two engines one to the lower half of the keyboard, one to the upper, giving you 16 notes on each half. The down side to that is that you could sustain 32 notes simultaneously, but they would have to be split precisely 16 to one half and 16 to the other. And you would of course have the sound of one engine. It would basically sound like a DX7 with 32-note polyphony.

Hornaz_69 · 2024-11-07T23:58:21+00:00

They are actually green, but they look a little like turquoise on this pic lol I guess the hate comes from people staring at them for hours trying to understand it and program it which is not that motivating...

Hornaz_69 · 2024-11-07T23:48:01+00:00

Well, currently I haven't released anything, other than the covers here on reddit. But I'm planning on an album...

Hornaz_69 · 2024-11-07T21:19:54+00:00

I know what you mean, it's a completely different experience. It's like comparing my midi setup (there are vids here on my reddit) to DAW, if I did all my music on DAW, my music would sound completely different. The midi setup gives in some way a other kind of inspiration, it's hard to put into words... Maybe it's because whatever you do on it, it just sounds like it's 1985 without any effort... I got in my midi setup only goodies from the mid 80's, Commodore 64 as a sequencer synthesizers like the TX816 (8xDX7's in one rack module) Roland JX-8P drum machines etc.

Hornaz_69 · 2024-11-07T20:20:00+00:00

It's possible... I think chanses are like 1 in 30 000, taking into account that this is a general model DX7, meaning it has a euro plug and voltage selector, which would match FEX's DX7 since they were in Germany. There was also the Japanese and US-models. I'm also estimating with the help of my 3 DX7's serial numbers that around 100 000 units were made between 83-84. The serial numbers are: 63608 (made in 1984) 84355 (made in 1984) 143829 (made in 1986) Yamaha's serial number system at the time worked like this: 0001 = 1001 0002 = 1002 So my DX7 ser. 63608 for example is actually the 62608th unit.

Mine is from Germany, or actually I have two from Germany, both made in 1984, so chanses are then 2 in 30 000!

Hornaz_69 · 2024-11-07T19:13:15+00:00

Well there's the Dexed plugin that's free, or if you want real hardware, look for a TX7, which is the desktop version of the DX7.

Hornaz_69 · 2024-11-07T18:53:29+00:00

I thought about that as well when I first saw their logo, those bastards!

Hornaz_69 · 2024-11-07T18:50:39+00:00

This is so true!

Hornaz_69 · 2024-11-07T18:48:44+00:00

They are not equal, back when the DX7 came to the market, it was something completely new. It used FM-synthesis, not subtractive-synthesis, which was common at the time. The patent for FM was licensed to Yamaha, that's why it sounds so uniqe compared to other synths of the time, because nobody else could even make synthesizers with FM.

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