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Re: Roland RA-50, RA-90 and RA-95 doubts about purchase or not

Posted on 2023-10-13, 14:16

in Marvin \ Sound

in Marvin \ Sound

My friend says ra-50 has mt-32 mod with keys: 1. Midi button right side 2. Music Style line (up) 7 button 3. Right with +/- buttin from E-20 to MT-32 set up 4. Midi button again. Correct, that does make it almost fully compatible with the MT32, except for the issue with hanging notes/no midi reset. …

Re: Have you opened your SC-55 to check the battery inside?

Posted on 2023-10-01, 21:25

in Marvin \ Sound

in Marvin \ Sound

Swapped the battery of a Yamaha MU80. This is how it started: PXL_20231001_195412957.jpg The board removed from the case: PXL_20231001_195814383.jpg Interestingly one of the chips has something extra mounted underneath: PXL_20231001_195804482.jpg I replaced the soldered dead CR2450 with a CR2032 …

Re: which dos soundcards with onboard wavetable could remap instruments to mt-32 presets?

Posted on 2022-12-08, 22:43

in Marvin \ Sound

in Marvin \ Sound

Yamaha DB50XG, DB60XG and NEC XR385 also have a MT-32 compatible mode (TG300B mode, enabled via MIDI commands). Ok I know those aren't soundcards per se, but can enable any soundcard with wavetable header to be MT-32 "compatible" TG300B mode on Yamaha synths is for emulating the SoundCanvas. You're …

Re: MF-001 Adlib Clone jumper settings, thoughts has anyone

Posted on 2022-11-22, 22:25

in Marvin \ Sound

in Marvin \ Sound

Looks like it's an OPL2 clone, is the big chip marked SC801?

Re: Roland RA-50, RA-90 and RA-95 doubts about purchase or not

Posted on 2022-08-29, 16:09

in Marvin \ Sound

in Marvin \ Sound

Should be identical except it is a mask rom instead of an eprom. Looks like it was made in 1990 so it's a pretty late version

Re: IGEL WinNet III - need BIOS

Posted on 2022-07-22, 17:58

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi Lex-, I dumped the whole chip with an external SPI flasher and used AMIBCP to make the BIOS show all settings that were previously hidden. AMI BIOSes are pretty easy to "unlock" as long as the settings are there and hidden. Your Igel H830 probably has an Insyde BIOS, the same tools sadly don't …

Re: Were 1990s keys really bone white when new ?

Posted on 2022-07-14, 15:48

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

White keyboards did exist but most were a bit beige even when new Here's picture from 1988 for example

Re: Computers in disguise, do you know any?

Posted on 2022-06-21, 02:05

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Almost all thin clients.

Re: Tillamook 266MHz and working L2 cache?

Posted on 2022-06-21, 01:59

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The IBM Network Station 8364 usually came with a 266Hz Tillamook for Socket 7

Re: List of video card tech demos

Posted on 2022-06-12, 04:27

in Milliways

in Milliways

PowerVR Midas-3 or PCX also seems to have demos: https://vintage3d.org/midas3.php

Re: Tillamook 266MHz and working L2 cache?

Posted on 2022-05-26, 14:39

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Interesting, it's not listed on wikipedia and the part number alone also applies to the normal desktop chip

Re: Tillamook 266MHz and working L2 cache?

Posted on 2022-05-26, 00:42

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Does this fit into a regular socket when the components / dip-switches on the underside are mounted? I have those sockets with some larger caps or even temp-sensors mounted within the socket cavity in mind. This adapter has to be soldered to the CPU pins right? Any chance to integrate some tiny …

Re: my compact flash experience is a dud

Posted on 2022-05-23, 23:01

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For some SanDisk cards there's a tool to make them appear as fixed disks. https://ozgurkazancci.com/down/set-compact-fl … d%20disk%29.txt http://www.floutsch.com/pub/download/ATCFWCHG.COM

Re: Roland RA-50, RA-90 and RA-95 doubts about purchase or not

Posted on 2022-05-19, 20:58

in Marvin \ Sound

in Marvin \ Sound

Just did this mod to my RA50, works perfectly. Thank you all!

Re: Need Roland SC-55 volume potentiometer and knob

Posted on 2022-05-14, 23:44

in Marvin \ Sound

in Marvin \ Sound

If it's the same as in the SC50 and SC55mk2 then it's an ALPS RK09L12 10KB

Re: Options to connect a Roland MT-32 to a modern PC

Posted on 2022-05-04, 14:34

in Marvin \ Sound

in Marvin \ Sound

Even if you add the optocoupler the chip might not be able to handle fast sysex. Better budget options are getting a second hand m-audio midisport uno or Roland UM-1S. If you get this old roland cable you will have to edit the drivers for windows. The best way is to get a Roland UM-One Mk2.

Re: Have you opened your SC-55 to check the battery inside?

Posted on 2022-04-25, 23:30

in Marvin \ Sound

in Marvin \ Sound

I also have a TG300 but haven't had to remove the battery yet, because it still works and looks okay visually. By the way, is it common for a TG300 to have manually burned and labeled EEPROMs?

Re: Sound Canvas (and related) comparison project (UPDATED: 22nd March)

Posted on 2022-04-24, 19:24

in Marvin \ Sound

in Marvin \ Sound

One synth that hasn't been mentioned yet is the M-GS64. I wonder how it compares to the SC88. Same or different DAC?

Re: Sound Canvas (and related) comparison project (UPDATED: 22nd March)

Posted on 2022-04-22, 22:45

in Marvin \ Sound

in Marvin \ Sound

Do you plan on including virtual synths? Like the Windows GS Softsynth, Edirol Hypercanvas, SaoundCanvas VA or Mac OS DLS Synth?

Re: Does anyone know of any MIDI Soft Synth usable on NT 3.51?

Posted on 2022-03-05, 00:31

in Marvin \ Sound

in Marvin \ Sound

Wingroove might work

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