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Looking for some insight and assistance here.? I picked up a Yamaha wireless bluetooth MD-BT01 Bluetooth Wireless MIDI Interface to use with my DX7.? My understanding is that the device can/could be

Hi Michael, thanks a lot, that is great. But from a first check, the DX21 firmware and that of the DX100 are completely different. In the DX100 the rom starts with code and ends with the voices, in

Does this help?

I would have thought the same, until I saw that note in the DX27 manual. But for a dump the data needs to be processed anyway. At least in the DX21 firmware each voice only uses 49 bytes.

That would be strange. It wouldn't hurt if the Chorus=On bit would be set in the sysex data, even for a DX27/DX100 that doesn't have a chorus effect. The bit would simply be ignored. -- MT

Rare? Then I must have been lucky, got it for very little money. It also has a port for a foot volume controller. Intruiging. I have just checked it on my DX27s, and at least have the chorus set

Interesting. I knew the DX21 has a simple Chorus effect, but I didn't realize the (rare) DX27S also has a Chorus effect, unlike the DX27 and DX100. I have SysEx dumps from the 8x24=192 factory

Hi Andy, thanks for the explanation. I was roughly aware how a BBD could be used for a chorus effect, I was mainly surprised that the DX27s would use a different chip than the DX21, both from the

A chorus circuit like that is based around a BBD chip and a clock generator.? In this case, MN3204 is the BBD and MN3102 provides the clock.? There also one or two fixed filters, made with op amps

I'm trying to figure a bit out about the DX27s. As with the DX21 it has chorus, but then again, the DX27 and the DX100 do not, even though they share the same main PCB. According to

Hi Martin, I suspected as much, but thanks for confirming my suspicion. My biggest problem was simply that I wondered if *I* was just not able to understand something there. So far my work-around

Operator On/Off for the DX21 can be changed with a parameter change sysex message, but is not stored with the VCED and VMEM data. You cannot "read" this with a SysEx request message. To ensure the

I'm playing a round with creating my own MIDI-Editor for - among others - the DX21. As I look through the manual, it appears that the DX21 (YS200 is no difference...) only transmits the firs 93 bytes

They need a recap for sure.? and the batteries checked. one of my modules doesn;t light up anymore but makes sound.? it's def in line to go to the tech NEW ALLIANCE

The *TX81Z* is a rack version of Yamaha DX11 https://en.wikipedia.org/wiki/Yamaha_TX81Z The *TX816* is? a rack unit that could take up to eight TF1 modules. A TF1 module is basically a DX7

Not even close! The TX816 is a fully-loaded version of the TX8xx rack-mount synth. It consists of a rack base and power supply, along with 1-8 TF1 sound modules.? From a distance, it looks something

I have a TX81Z are they the same thing?

I boast 3xTx816. I have replaced all the batteries with battery holders. Easy job. i second the sentiment >not< to sell the tx816. It is a desert island synth for me hahaha

Aha, thanks. It's not really comparable, but I had a TX802 which had a slow-motion startup. Replacing the (mostly empty) electrolytics on the PS board solved the problem, so it's worth a shot. And

Then it could be something else. I haven't check the TF1 schematic, but it should be similar to the DX7, and it reminds me an issue I had with it. On the DX7, right after power on, the /RESET signal