Re: Roland MT-32 CM-32L upgrades?

Posted on 2024-02-25, 23:48

by

by terryfi

in MT-32 General

in MT-32 General

This is for 2nd generation MT32s without the PGA LA32 chip, for these you simply use CM32 or LAPC program ROM and burn a new sample ROM with the extra sounds and you get all the fun. You might have to solder a wire to bring in the highest address line to the sample memory chip. 27C801 and one wire …

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Re: ARGUS Project thread - Now with gerbers and documentation in initial post!

Posted on 2023-08-15, 00:19

by

by terryfi

in Marvin \ Sound

in Marvin \ Sound

137.90 US dollars. I hated being late to the project. I don't know if I overpaid, probably did. I still have to get all the parts. I've been wanting one of these forever and a day to use for music production. I think I'm an artist, but life doesn't agree all the time. We overpaid too maybe 30% less …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-02-28, 18:41

by

by terryfi

in Marvin \ Sound

in Marvin \ Sound

Was gonna suggest Logic Analyzer, didn't because you know your thing. I also think delay will not be significant and that is another selling point for this card. I am not sure if it is discussed here but next natural step for this to have a PCMCIA version of the card. It will be very useful to …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-02-28, 07:02

by

by terryfi

in Marvin \ Sound

in Marvin \ Sound

Yeah I checked the wiki and see you use OpenWatcom to compile. It looks like it has some optimization option for 286/086. If I ever build the card I will test it on my Tandy 1000, I have 100 projects on wait list to order PCB and source parts. It will be a cool add-on at least for experimenting …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-02-28, 04:46

by

by terryfi

in Marvin \ Sound

in Marvin \ Sound

I haven't read most of replies here. I tried to search in google but didn't find anything. Does PicoGus drivers/setup software work on XT class machines like Tandy 1000.?If not will upgrading to NV20 help?

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Re: Anyone with a Tandy CM-11 Monitor?

Posted on 2023-02-27, 15:24

by

by terryfi

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Photos attached

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Re: ARGUS Project thread - Now with gerbers and documentation in initial post!

Posted on 2023-02-27, 04:09

by

by terryfi

in Marvin \ Sound

in Marvin \ Sound

Great info here. Reminded me of how much time it took to source parts; some parts are obsolete and you need to find similar one with matching spec and footprint, some are only available in other grades or tolerances e.g. more expensive automotive grade. If you are motivated it is not bad and can be …

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Re: Anyone with a Tandy CM-11 Monitor?

Posted on 2023-02-27, 03:22

by

by terryfi

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi everyone, I've recently acquired one CM-11 with broken tabs on one side of panel door. The tabs are kind of delicate and not easy to recreate with glue or metal paper clips, I am not familiar with 3D printing and neither have a 3D printer but if anyone here can help with some resources or designs …

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Re: ARGUS Project thread - Now with gerbers and documentation in initial post!

Posted on 2023-02-27, 00:57

by

by terryfi

in Marvin \ Sound

in Marvin \ Sound

No you are not crazy I did the same thing. Be prepared to spend couple of hours, don't let comments like "I finished it in 2 hours" let you down. Follow the guide/zip file in the initial post for software and programming board. Also be prepared to debug; use microscope or any other magnification to …

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Re: Tandy 1000EX external floppy pinout

Posted on 2023-02-19, 20:54

by

by terryfi

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I also did the mapping, turned out to be same as yours. On internal side, DS wire is connected to DS0 of internal drive, externally we should also connect it pin selected by drive (e.g. DS1 for DS1-set drive). I will order some 30 pin edge and 34 pin ide connectors then will make a prototype on …

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Re: Problem installing Yamaha YMF718-S OPL3 card in Win3.11 - not enough extended memory

Posted on 2022-10-03, 04:56

by

by terryfi

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

As far as I remember I did not run into any other problems. I was able to play MYST with working audio and video. For those who still looking for solution, I followed the instructions on this page and it fixed the issue: https://support.dynabook.com/support/viewContentDetail?contentId=107632 It …

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Re: ARGUS Project thread - Now with gerbers and documentation in initial post!

Posted on 2022-09-21, 21:41

by

by terryfi

in Marvin \ Sound

in Marvin \ Sound

Thought this was interesting for followers of topic. Raspberry Pi Pico on ISA board to emulate GUS. https://github.com/polpo/picogus https://www.youtube.com/watch?v=h4iWSnTc9Ag&t=82s

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Re: ARGUS Project thread - now accepting pre-orders (for north/south American and Europe)

Posted on 2022-07-02, 19:25

by

by terryfi

in Marvin \ Sound

in Marvin \ Sound

Hypothetically, could I use the toaster oven soldering method, or would that damage the Interwave? If you use same temperature ramp up and down used to stick Interwave in the first place, I don't see any reason not to. If you have experience with the same size boards and the same type of solder …

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Re: ARGUS Project thread - now accepting pre-orders (for north/south American and Europe)

Posted on 2022-06-30, 00:00

by

by terryfi

in Marvin \ Sound

in Marvin \ Sound

aitotat wrote on 2022-06-29, 09:33: I'm almost done soldering mine but I have a question about x1 and x2. Is x2 mic in and x1 line in? So same order as real GUS PnP? I have color connectors so I want to be sure before testing it. Based on schematic, from top to bottom on latest board, LINE, MIC and …

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Re: ARGUS Project thread - now accepting pre-orders (for north/south American and Europe)

Posted on 2022-06-27, 02:42

by

by terryfi

in Marvin \ Sound

in Marvin \ Sound

Finally done, so much trouble with solder paste, broken amp chip, weird software setup, but I am happy with the end result. I am really surprised by sound quality of this, the clarity beats classic GUS, AWE32 and all software trackers I've tried so far. A recorded tune is attached. What RAM did you …

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Re: ARGUS Project thread - now accepting pre-orders (for north/south American and Europe)

Posted on 2022-06-23, 22:23

by

by terryfi

in Marvin \ Sound

in Marvin \ Sound

I am having issues dumping iw rom, the content are corrupted repeating part of header, most time repeating corruption is different effect and once in a while they look similar. Anyone? Is there anyway to test iw rom functionality, e.g. play midi with rom patch, without dumping? One of the latch …

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Re: ARGUS Project thread - now accepting pre-orders (for north/south American and Europe)

Posted on 2022-06-23, 15:24

by

by terryfi

in Marvin \ Sound

in Marvin \ Sound

I am having issues dumping iw rom, the content are corrupted repeating part of header, most time repeating corruption is different effect and once in a while they look similar. Anyone? Is there anyway to test iw rom functionality, e.g. play midi with rom patch, without dumping?

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Re: ARGUS Project thread - now accepting pre-orders (for north/south American and Europe)

Posted on 2022-06-22, 14:09

by

by terryfi

in Marvin \ Sound

in Marvin \ Sound

Finally done, so much trouble with solder paste, broken amp chip, weird software setup, but I am happy with the end result. I am really surprised by sound quality of this, the clarity beats classic GUS, AWE32 and all software trackers I've tried so far. A recorded tune is attached. Great work! Just …

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Re: ARGUS Project thread - now accepting pre-orders (for north/south American and Europe)

Posted on 2022-06-22, 04:08

by

by terryfi

in Marvin \ Sound

in Marvin \ Sound

Finally done, so much trouble with solder paste, broken amp chip, weird software setup, but I am happy with the end result. I am really surprised by sound quality of this, the clarity beats classic GUS, AWE32 and all software trackers I've tried so far. A recorded tune is attached.

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Re: ARGUS Project thread - now accepting pre-orders (for north/south American and Europe)

Posted on 2022-06-21, 17:16

by

by terryfi

in Marvin \ Sound

in Marvin \ Sound

Found resetpnp here that supposedly rewrites the eeprom: http://www.vogonsdrivers.com/getfile.php?fileid=100

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