I have this unit in my collection, however it is in Russia while I'm in Argentina. I'm planning a short visit for July, if you give me an exact indication of how I get the needed value(s), I'll do my best to help.

Hi thanks a lot.
I was able to repair the device, but I do not know if I used the right device. I soldered this one in:
https://www.reichelt.de/stehende-induktivitae … gKTPvD_BwE&&r=1

The Waldorf Micro Wave PC works when connected to the EWS 64, I read that it is also possible to use it with a PCI sound card: DMX 6fire 24/96
In this case it seems to be necessary to connect a converter board:
http://terratec.ultron.info/Audio/DMX6fireLT/ … ckzettel_DE.pdf
I ask myself why this board is necessary.

Hi,

Sorry for the awakening this topic but does anyone here still have the Microwave PC? I want to rekindle my love for it but I cannot find the ribbon cable(s) to connect it to the DMX 6Fire. These are now impossible to find (unless you buy an overpriced EWS ISA bundle). I wonder if the ribbon-like one can be DIY'd from a 26(?)-pin ribbon cable if you have the pin layout (which is, again, not documented anywhere on the net). As for the candy strip-like one, I don't know...

Any ideas?

Cheers,
delon

Hi Delon, I have one, please drop me a line in December - we are moving now, so everything is packed and stored.

hard1k wrote on 2022-10-28, 08:26:

Hi Delon, I have one, please drop me a line in December - we are moving now, so everything is packed and stored.

Thanks, I will surely do!

Hi, Delon

You can use a regular 26 pin flat cable
Anyway you will have to customize it to have the 2 twisted wires as shown. connected pins are identical on both side so I don't know why they did that..
I can't try with a standard 26pins cable as I don't own one.

You can check here too : http://studiorepair.com/gallery/Waldorf/Micro … 0808106803.html
I don't own adapters shown on the picture, never had. The module is working fine without
Works in windows 7 (even whenn you use an external PCI adapter
Anyway, in windows 10/11 control panel is not stable and microwave software is not alway loading properly.

Stef

delon wrote on 2022-10-28, 08:17:

Sorry for the awakening this topic but does anyone here still have the Microwave PC? I want to rekindle my love for it but I can […]
Show full quote

Sorry for the awakening this topic but does anyone here still have the Microwave PC? I want to rekindle my love for it but I cannot find the ribbon cable(s) to connect it to the DMX 6Fire. These are now impossible to find (unless you buy an overpriced EWS ISA bundle). I wonder if the ribbon-like one can be DIY'd from a 26(?)-pin ribbon cable if you have the pin layout (which is, again, not documented anywhere on the net). As for the candy strip-like one, I don't know...

Any ideas?

Cheers,
delon

stmill1 wrote on 2022-11-12, 15:12:

Hi, Delon

You can use a regular 26 pin flat cable

Hi Stef,

Sorry I was totally away from the net (work & illness).

Amazing info you posted here, thank you! Yes, I knew the Studio Repair site but I couldn't see on the pictures how the individual pins were interconnected (and he didn't reply to my emails). I am still confused as on your picture, the pins are identical yet I clearly remember the MWPC manual states that you shouldn't use a standard 26-pin flat cable as it may damage equipment...

I remember the other (candy-coloured) ribbon cable was used for analog inputs. I might not use analog I/O but I do need MIDI input. Do you miss any functionality by using the flat cable only?

Thanks,
delon

Meanwhile, I checked eBay and there are a couple of EWS XL's for sale w/ frontbays. I attached pictures about them and I see no twists in their cables. I know that you can attach an MWPC to an EWS XL using the same cable so theoretically, a simple 26-pin flat cable should indeed work with the DMX 6Fire as well. Am I right?

Hi Delon
PM sent to you

Hello

Sorry for the late reply too busy too on other topics
I've always used the MWPC with this special cable event on the EWS64XL.

By the way

I'm actually finalizing 2 vintages PC machine with EWS64XL + pentium 3 W98 on SD64GB installed, fully functionnal.
So if anybody is interested just MP me !

I will post the full description in another thread, but I need to find the right one.

Stef

delon wrote on 2022-12-19, 11:48:

Hi Stef, […]
Show full quote

stmill1 wrote on 2022-11-12, 15:12:

Hi, Delon

You can use a regular 26 pin flat cable

Hi Stef,

Sorry I was totally away from the net (work & illness).

Amazing info you posted here, thank you! Yes, I knew the Studio Repair site but I couldn't see on the pictures how the individual pins were interconnected (and he didn't reply to my emails). I am still confused as on your picture, the pins are identical yet I clearly remember the MWPC manual states that you shouldn't use a standard 26-pin flat cable as it may damage equipment...

I remember the other (candy-coloured) ribbon cable was used for analog inputs. I might not use analog I/O but I do need MIDI input. Do you miss any functionality by using the flat cable only?

Thanks,
delon

Hi Delon, did you solve your qyery or do you want me to check again the calbe and try to help you building a new one ?

stmill1 wrote on 2023-02-01, 11:23:

Hi Delon, did you solve your qyery or do you want me to check again the calbe and try to help you building a new one ?

Hi Stef,

Sorry, I was busy, too. Yes, I am still interested! Sending PM...

delon wrote on 2023-02-15, 08:06:

stmill1 wrote on 2023-02-01, 11:23:

Hi Delon, did you solve your qyery or do you want me to check again the calbe and try to help you building a new one ?

Hi Stef,

Sorry, I was busy, too. Yes, I am still interested! Sending PM...

Necro bump here:
I've also gotten myself a Microwave PC and a 6Fire and would like to be able to connect them. The photograph posted by stmill1 it tantalising, but I can't figure out exactly what is connected to what. Did you ever figure this out?

dionb wrote on 2025-02-13, 09:26:

delon wrote on 2023-02-15, 08:06:

stmill1 wrote on 2023-02-01, 11:23:

Hi Delon, did you solve your qyery or do you want me to check again the calbe and try to help you building a new one ?

Hi Stef,

Sorry, I was busy, too. Yes, I am still interested! Sending PM...

Necro bump here:
I've also gotten myself a Microwave PC and a 6Fire and would like to be able to connect them. The photograph posted by stmill1 it tantalising, but I can't figure out exactly what is connected to what. Did you ever figure this out?

Hello hope you still are active with your Microwave PC, I got mine working after years. Bought it original with an EWS64 XL.
Later on I bought the DMX6Fire LT, and had it working .
Now I rebuild an old I7 pc, with windows XP, and after a while, while playing loaded .mws soundsets, first the analogue sounds via the headphone and speaker out starts dropping and when i switch to digital out, the same happpens some minutes later, and after a while the whole soundcard stops working,
When I disconnect the MWPC, and play music it has no problems.
Could one of the capacitors be defective ? I cleaned the circuitboard with isopropyl and checked it with a optivisor but could not find any visual problems.
Would love to have it working normally, as it is a great sounding piece of kit.

Peter djpj wrote on 2025-08-31, 08:55:

Hello hope you still are active with your Microwave PC, I got mine working after years. Bought it original with an EWS64 XL. Lat […]
Show full quote

dionb wrote on 2025-02-13, 09:26:

delon wrote on 2023-02-15, 08:06:

Hi Stef,

Sorry, I was busy, too. Yes, I am still interested! Sending PM...

Necro bump here:
I've also gotten myself a Microwave PC and a 6Fire and would like to be able to connect them. The photograph posted by stmill1 it tantalising, but I can't figure out exactly what is connected to what. Did you ever figure this out?

Hello hope you still are active with your Microwave PC, I got mine working after years. Bought it original with an EWS64 XL.
Later on I bought the DMX6Fire LT, and had it working .
Now I rebuild an old I7 pc, with windows XP, and after a while, while playing loaded .mws soundsets, first the analogue sounds via the headphone and speaker out starts dropping and when i switch to digital out, the same happpens some minutes later, and after a while the whole soundcard stops working,
When I disconnect the MWPC, and play music it has no problems.
Could one of the capacitors be defective ? I cleaned the circuitboard with isopropyl and checked it with a optivisor but could not find any visual problems.
Would love to have it working normally, as it is a great sounding piece of kit.

now i tried the PC again. i can't get the MW sounds over the analoque circuit, yesterday it did work, it only works over the digital out, but it stutters a lot.

That could be bad caps, yes.

Not had much time to play around with my stuff over the past months I'm afraid.

dionb wrote on 2025-08-31, 22:39:

That could be bad caps, yes.

Not had much time to play around with my stuff over the past months I'm afraid.

looks like it might be the caps;
sunday i re-installed Windows XP Pro, and yesterday, i did a 'cold start' on this PC, the first five minutes i had flawless sound on the analoque, and the digital output,
but after a few minutes parts of the sound started missing, and soon the analoque sound stopped, i then switched to the digital output, i had sound but soon also the sound was gone.

anyone have any idea which capacitors could be the problem? and what the values of the capacitors are?
here is a good link to the layout of the board;

http://studiorepair.com/gallery/Waldorf/Micro … 0808106793.html