@BigD

Hmm, if my memory doesnt fool me, the A4000D should have four pins near the audio out jacks (and I think its the same for the A4000T). Theyre labeled CD audio or Audio in, dont remember now.

Well, lets see... (opening http://www.bboah.de)

Hm, too bad... no information about the audio module for the A4000T Well, maybe another A4000T owner could tell us more? The A4000D has the pins I mentioned, I would wonder if the A4000T doesnt have them...

@whose

Here's a pic of the audio module:

Hi-Def Picture of A4000T Audio Module

_________________
"Art challenges technology. Technology inspires the art."
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@BigD

Man, you make me mad

Yes, the cable is suitable for the Pioneer, I use a very similar one here (without the clips, but four pins and black connector). So I was right that the A4000T should have audio in pins on the audio module, fine Soon youre ready to listen to CDDA whenever you want

Edit: Hmm... I dont see any connectors on the audio/video module where you could plug in the cable?

Edit2: Aaaah, there is a 3 pin header for this... you said audio in cable is attached already? Use this cable, the drive end should be 4 pin and if it is (same pin size as the audio in header), it fits into the Pioneer drive as well (these headers are more or less standard).

Last edited by whose on 12-Mar-2010 at 11:24 AM.
Last edited by whose on 12-Mar-2010 at 11:20 AM.

@whose

The A4000T spec say there's a 1× internal audio input 3 pin header

_________________
"Art challenges technology. Technology inspires the art."
John Lasseter, Co-Founder of Pixar Animation Studios

@whose

Looks like it's on the mainboard:


A4000T schematic inc CD-Rom Audio Header

_________________
"Art challenges technology. Technology inspires the art."
John Lasseter, Co-Founder of Pixar Animation Studios

@BigD

This is for the A4000 Desktop... for your A4000T, the header is on the audio/video module (there is a 3 pin one, not jumpered at all. I think this is the 3 pin audio in header). But you should ask somebody owning an A4000T, too, just to be sure.

@BigD

Uhm, btw., seems like you cant use a standard audio cable here... standard cables use 4 pins but only 3 pins connected, one of them, the outmost pin, is for the left audio channel. This wont fit on the 3 pin headers on the A4000 models. Some mod needed then...

@whose

Since the cable is already attached I'll see where it leads and report back!

_________________
"Art challenges technology. Technology inspires the art."
John Lasseter, Co-Founder of Pixar Animation Studios

@BigD

Quote:

I guess I'd need to cable up the audio out from the CD-ROM into a sound card to do that?

Sorry but it would be funny if Exodus had no CD sound because the CD audio cable wasn't plugged in! Hehe.

Quote:

Actually, I think it's already attached looking at the connector type! So, I just unclip from the old drive and plug into the Pioneer presumably.

If it already has a lead then why would they attach it to a drive that can't play audio? Or did they connect up a drive they couldn't play audio with? Commodore were stupid then!

@Hypex

After further research I very much doubt it was the original Escom/AT installed CD-Rom. I think the previous owner was into Sound Editing etc more than he was into gaming.

Make: Toshiba
Model: XM-6201B
Manufacture Date: January 1998

The Toshiba can play music CD's using SCSI Direct and maybe converting the music into data files was more important to him than playing CDDA in games etc.

I doubt Exodus would refuse to load if the audio out cable wasn't plugged in!! Remember it can't find the CDDA Device & Unit No and it needs the info before it loads!!!

This problem is not as simple as an unplugged audio lead sadly

Last edited by BigD on 12-Mar-2010 at 01:51 PM.

_________________
"Art challenges technology. Technology inspires the art."
John Lasseter, Co-Founder of Pixar Animation Studios

@Hypex

Quote:

Sorry but it would be funny if Exodus had no CD sound because the CD audio cable wasn't plugged in! Hehe.

Indeed Lets wait and see what BigD tells us about the audio cable and where it ends

Quote:

If it already has a lead then why would they attach it to a drive that can't play audio? Or did they connect up a drive they couldn't play audio with?

Neither. The drive indeed is able to do audio playback, but not with the wrong commands send to it. The problem here is Toshibas behaviour to only support the audio commands they introduced about 10 years before this drive BigD has now was manufactured.

He said it has audio output port, remember?

Quote:

Commodore were stupid then!

Only due to the fact that they "forgot" to establish a playcd.library standard with some driver modules. If every program then uses this library for e.g. audio playback, there would have been no hassle with e.g. Toshiba drives...

@BigD

But there is an audio cable plugged to the drive, isnt it? If it is, just follow it to the other end. If its ends on the audio/video module, all things are fine. Just replace the Toshiba with the Pioneer drive and plug the audio cable in. Audio port on the drives should be the same (I have a very old Toshiba drive here (XM-3301B, IIRC, label is gone in this 20 years or so) and it has the same 4 pin audio port as the Pioneer. I doubt your Toshiba drive has a very special connector so that the audio cable wouldnt fit to the Pioneer drive. Toshiba is known to be different software-wise, but not hardware-wise.

@whose

Quote:

Uhm, btw., seems like you cant use a standard audio cable here... standard cables use 4 pins but only 3 pins connected,

I've seen two types of audio cable. The direct four pin to four pin type. And also here I have a white three pin plug to a black four pin plug. Cable is grey. Three wires are connected.

@Hypex

Hmm... if we both mean the same type of cable, it wont fit anyway. The white plugs need a special socket, very small grid and pins. This wont fit to the connectors on the A4000, as these are standard pin grid size (like the black plugs are).

But lets hope that BigD has an appropriate audio cable already, would be a good thing, less hassle

@whose

Quote:

But lets hope that BigD has an appropriate audio cable already, would be a good thing, less hassle

There is no audio cable attached!

I took the time to install the MMC compliant CD-Rom drive. However, it seems the Audio out 4 pin socket was never connected to the motherboard on my previous CD-ROM! I need to work out how to connect the Cd-Rom audio via 4 pin header to a a4000T internal audio input 3 pin header! I don't even know where the motherboard header is! Would this cable do if I can find the header?

Belkin Universal MPC2 CD-Rom Cable on Amazon

_________________
"Art challenges technology. Technology inspires the art."
John Lasseter, Co-Founder of Pixar Animation Studios

@Thread

I finally got around to checking the CD-Rom Audio cable attached to my A4000T AV Board. It was indeed the wrong way round. Since only Cameraman was able to tell me how to check what the correct orientation was here's the solution for anyone else struggling to get it up in the future;

Just to remind you the A4000T AV board has a non-standard 3-pin audio header rather than the 4-pin variety on the standard A4000 desktop!


Quote:

BigD wrote: Which pin is which? I don't think it's clear which way round Pin 1 & Pin 3 are orientated. Obviously Pin2 is in the middle! Thanks for your help, I've successfully modified the 4 pin connector. It just might be on the wrong way round!

Quote:

Cameraman wrote: Hi,the three pin header is in the back on the Audio/Video Module. Pin 1 = Left Audio Pin 2 = Ground Pin 3 = Right Audio Does that help?

Last edited by BigD on 26-Feb-2011 at 01:43 PM.
Last edited by BigD on 26-Feb-2011 at 01:42 PM.

_________________
"Art challenges technology. Technology inspires the art."
John Lasseter, Co-Founder of Pixar Animation Studios

@Thread


Quote:

Cameraman Continues: Worst case, you'll have left and right audio swapped. Usually the pins have a white rectangle around them with an arrow on one side. The arrow side is pin 1. If there are any ic's on the pcb you could look at where pin one is on those (usually marked on the ic with a dot). Chances are the pin header is also facing the same direction with pin one.

Last edited by BigD on 26-Feb-2011 at 01:44 PM.

_________________
"Art challenges technology. Technology inspires the art."
John Lasseter, Co-Founder of Pixar Animation Studios

@Thread

This setup is still working great 13 years on! All my spinning SCSI drives are now dead and I'm soldiering on with my SCSI2SD drive!

I just thought I'd complete this thread with the MMC Wiki page link:

Wiki - MMC: Mixed Mode CDs

I hope someone finds this useful for playing the soundtracks on mid to late 90s CD games!

_________________
"Art challenges technology. Technology inspires the art."
John Lasseter, Co-Founder of Pixar Animation Studios

@BigD

Its down to bad CDDA support and AHI switching that does not recognoize no real connection on said number - thus this part of Miggy isnt Autocnfig.

It simply came late and kind of dirty.

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@Hypex

There was a way to link it to Paula, I believe via phone jack or that back cable like on PC.
Surely real AHI card solves the problem.

_________________
OS 3.x AROS and MOS supporter, fi di good, nothing fi di unprofessionalism. Learn it harder way!
SinclairQL and WII U lover :D
YT http://www.youtube.com/user/rasvoja