Reversing the Disney Sound Source

Discussion about old sound cards, MIDI devices and sound related accessories.

Re: Reversing the Disney Sound Source

Postby matze79 » 2017-12-10 @ 08:22

This is anoying the Device runs alone very well, no problems...

As you can see:
http://www.vartaleaks.com/chipdac-metal.mp4

i use a simple Amp:
https://english.electronica-pt.com/db/i ... DA7050.jpg
Added 100nf and 10uf as deblocking.

Unfortunaly i did not paint a Schematic for now.
Only soldered on protoboard.

http://www.epanorama.net/circuits/dacs.html

its combined with this Schematic:
http://www.epanorama.net/circuits/cent_dac.gif

Circuit is driven from 9V Lab Power Supply or 9V Batterie (For mobile usage)
VIA 7805 with 2x 100nf and 2x 10uf Deblocking on in and output.

As you can hear above, its working glad and has no issues on every computer i tried (at least 4)
Only one older Laptop is not working, LPT has not much driving Power and with 74HC244 added it works.
matze79
Oldbie
 
Posts: 908
Joined: 2014-12-12 @ 14:25
Location: Germany, Frankonia

Re: Reversing the Disney Sound Source

Postby Paralel » 2017-12-10 @ 22:52

matze79 wrote:
2017-12-09 (1).png


:/ from Amp Output, also happens without Amp (only when DSS is not active)

Very nice. So. Definitely 50 Hz, highly structured, and also sub structured.
Paralel
Newbie
 
Posts: 42
Joined: 2013-4-08 @ 19:49

Re: Reversing the Disney Sound Source

Postby matze79 » 2017-12-12 @ 06:30

Update:
The DAC does not like having Inputs float.
Adding a Bus Driver solved one of the problems for me.
At least my perfboard build is working now.

The DSS has still some noise on it :/
matze79
Oldbie
 
Posts: 908
Joined: 2014-12-12 @ 14:25
Location: Germany, Frankonia

Re: Reversing the Disney Sound Source

Postby matze79 » 2017-12-19 @ 12:18

I have 5 DSS Boards left, if anyone is intressed just write me a PM.
matze79
Oldbie
 
Posts: 908
Joined: 2014-12-12 @ 14:25
Location: Germany, Frankonia

Re: Reversing the Disney Sound Source

Postby dr.zeissler » 2017-12-19 @ 12:20

please tell me the "simplest" way for the getting voltage? Thx Doc
CPU: PII 133-333 MOBO: SNI-D981 RAM: 512- FDD: Dualfloppy 3,5"HD/5,25"HD - 3,5"HD - 5,25"DD ISA-Catweasel HDD: 2x40GB - DVD
ISA(3): Audician32-S2Dreamblaster - GusACE PCI(3): Monster3D- Intel NW AGP(1): 3dfx V3-3000
dr.zeissler
Oldbie
 
Posts: 1273
Joined: 2011-9-28 @ 15:33

Re: Reversing the Disney Sound Source

Postby matze79 » 2017-12-19 @ 12:29

Just pass 5V to the 2 Pin Header, maybe from Computer Powersupply Molex connector ?

3,5" Floppy Connector maybe ^^
Attachments
stuf.jpg
matze79
Oldbie
 
Posts: 908
Joined: 2014-12-12 @ 14:25
Location: Germany, Frankonia

Re: Reversing the Disney Sound Source

Postby dr.zeissler » 2017-12-19 @ 12:31

USB-Solution possible? I want to use this machine: https://images-na.ssl-images-amazon.com ... N5PqzL.jpg

Thx!
CPU: PII 133-333 MOBO: SNI-D981 RAM: 512- FDD: Dualfloppy 3,5"HD/5,25"HD - 3,5"HD - 5,25"DD ISA-Catweasel HDD: 2x40GB - DVD
ISA(3): Audician32-S2Dreamblaster - GusACE PCI(3): Monster3D- Intel NW AGP(1): 3dfx V3-3000
dr.zeissler
Oldbie
 
Posts: 1273
Joined: 2011-9-28 @ 15:33

Re: Reversing the Disney Sound Source

Postby matze79 » 2017-12-19 @ 12:36

You can also use USB, do you have some old USB Cable ?
just strip it and connect Redwire near the Diode and Blackwire next to R1 on the Jumperheader.
Last edited by matze79 on 2017-12-21 @ 07:25, edited 1 time in total.
matze79
Oldbie
 
Posts: 908
Joined: 2014-12-12 @ 14:25
Location: Germany, Frankonia

Re: Reversing the Disney Sound Source

Postby dr.zeissler » 2017-12-19 @ 16:29

I should have some USB-Cables :)
CPU: PII 133-333 MOBO: SNI-D981 RAM: 512- FDD: Dualfloppy 3,5"HD/5,25"HD - 3,5"HD - 5,25"DD ISA-Catweasel HDD: 2x40GB - DVD
ISA(3): Audician32-S2Dreamblaster - GusACE PCI(3): Monster3D- Intel NW AGP(1): 3dfx V3-3000
dr.zeissler
Oldbie
 
Posts: 1273
Joined: 2011-9-28 @ 15:33

Re: Reversing the Disney Sound Source

Postby matze79 » 2018-3-10 @ 09:54

Simple Covox Device:

covox.png


Schematic and BRD included.

If anyone needs it, simple order at oshpark.com or dirtypcbs.com :)
Or etch one. Yeah i know it could be easily build without PCB.
But this will allow faster production. Simply print 10 and etch.

You may want to choose your own Output Capacitor.

dss.jpg

covox.png


covox.zip
(93.68 KiB) Downloaded 7 times


i also did a new PCB Design for DSS. But currently somehow busy..
Expect a Update in next months for a 50Hz Buzz Free DSS.

EDIT:
Both PCBs can be panelized to order them as One.
matze79
Oldbie
 
Posts: 908
Joined: 2014-12-12 @ 14:25
Location: Germany, Frankonia

Re: Reversing the Disney Sound Source

Postby dreamblaster » 2018-3-10 @ 16:07

nice !
dreamblaster
Oldbie
 
Posts: 512
Joined: 2015-1-18 @ 19:34
Location: Belgium

Re: Reversing the Disney Sound Source

Postby matze79 » 2018-3-31 @ 18:05

dss1.jpg


dss2.jpg


Nothing special :)
matze79
Oldbie
 
Posts: 908
Joined: 2014-12-12 @ 14:25
Location: Germany, Frankonia

Re: Reversing the Disney Sound Source

Postby awgamer » 2018-3-31 @ 19:45

So I take it the thing pictured on the right: https://i.imgur.com/2FxAIoN.png is just a plastic case housing a speaker and volume knob?
awgamer
Member
 
Posts: 407
Joined: 2014-7-26 @ 07:42

Re: Reversing the Disney Sound Source

Postby matze79 » 2018-4-02 @ 16:33

As far as i known the whole DSS is inside the Plug.

The other Case just contains a Amp and the Volume knob right ?
matze79
Oldbie
 
Posts: 908
Joined: 2014-12-12 @ 14:25
Location: Germany, Frankonia

Re: Reversing the Disney Sound Source

Postby keropi » 2018-4-02 @ 16:48

^ yes exactly the housing is a speakerphone, an amp and the 9v battery storage.
The DSS circuitry is in the silver lpt housing:

Image

I will post a pic of the speakerphone if I find it :lol:

edit: here it is

Image

Image
User avatar
keropi
l33t++
 
Posts: 6155
Joined: 2003-9-08 @ 06:45
Location: Greece

Previous

Return to Sound

Who is online

Users browsing this forum: No registered users and 2 guests