Playstation as CD-player

[DragonMaster]

about the psu i think that a wall wart is not enough 17w is 1.5A

There are some powerful wall warts out there. It could be a transformer block, which in fact is a wall wart with a wire on the mains side too.

i mean the jrc maybe better than nothing.

Not from what I hear. The unamplified A/V multi out sounds better than the RCA jacks and have the same gain. There is humming in the RCA jacks that is not there with AV OUT and there's less feedback(?) / bass more detailed. There's as much noise tho.

anybody knows how we could have spdif output for use with an external DAC?

Ain't the goal of using a PSX is to use it's internal DAC? A standard CDP would be a better choice if this was not the only reason to use it as CDP : It's a pain to control, modify, and it skips to nothing.

You just need an I2S to SPDIF converter. The I2S signal can be partially found on the parallel port and all of them can be found on the DAC.

An other thing to try would be to remove the muting transistors.

[back]

Originally posted by DragonMaster





Ain't the goal of using a PSX is to use it's internal DAC? A standard CDP would be a better choice if this was not the only reason to use it as CDP : It's a pain to control, modify, and it skips to nothing.

You just need an I2S to SPDIF converter. The I2S signal can be partially found on the parallel port and all of them can be found on the DAC.

An other thing to try would be to remove the muting transistors.

if it is not a good transport then how it sounds so good?

it uses a buffer and reclocking or something?

i don`t know how hard it will be to remove the muting transistors

[jives11]

Originally posted by DragonMaster


Because there are 3 different caps on the scheme. The circuit provided by MickF is for a newer version of the PSX that doesn't have the RCA jacks.

There are two independant circuit. If you want to remove all caps from the RCA jacks circuit, short the first and third pair. The first pair is before the opamp and the third is after the opamp. If you want to make the circuit like the A/V MULTI OUT, connect the input of the first cap to the output of the third.

The second pair is just for the unamplified A/V MULTI OUT.


I compared A/V MULTI OUT and the RCA jacks and A/V OUT seems to sound a bit better. It's unamplified, but the gain is the same as the amplified RCA outputs.

So maybe I need to get me one of these ?

http://cgi.ebay.co.uk/Playstation-PS...QQcmdZViewItem

(not a plug for this ebay seller, just using it as an example)

It would seem to provide RCA sockets but based on the AV circuit path ? (assuming there are no caps in the adaptor !)

[back]

why don`t you solder a pair of good rca`s
it is better than the adaptor

http://www.hardwarebook.net/connecto...stationav.html

[DragonMaster]

What you could do would be to bypass the opamp and first pair of caps to get the same circuit as the AV MULTI OUT.

I don't think you should buy something as the A/V connector is pretty bad. Just make the circuits the same.

[Floric]

anybody knows how we could have spdif output for use with an external DAC?

I think the challenge would be the other way round: To use the PS as a DAC. Because the only thing that's excellent in the 100x is the DAC. The drive is really substandard - if I found a drive like this in a CD Player I spent money for I would reach for the axe...

I'm using the 1002 as a CD player for one year now (second drive/laser unit) and I am very content with the sound even though I use it without modifications, output stage etc. (was afraid to damage this little diamond). But I think mechannically the PS is a desaster, just listen to the sounds it makes while skipping and just have a look at the laser/drive unit.

The "perfect" budget CD player in my opinion would be the DAC of the PS with a better drive capable of reading old CDs, CDR etc. and perhaps some more comfort. O.K. there are better CD players around but you would have to spend more than 2000€/$ for them.

As far as I know, there are SPDIF to I2S converters on the market. And as far as I understood this thread right now, the DAC is fed with I2S. So is there a possibility to connect an external I2S (or SPDIF) source to the PS?

I think the result could be better than an ordinary PS.

Have a nice day

Floric

P.S: Thaks for the introduction to adjust the laser, Mick. This way I was able to restore the old laser of my PS, the "new" one is not usable any more.

[DragonMaster]

The AK4309AVM is a DAC like an other. The only way to make it work somewhere else would be to steal it's DAC and make a board for it. You could connect to it's I2S signals but it's not worth doing.

The on-console CDP has a lot of features, that sadly are not available without a screen.

Here the goal is to make the PSX a better CDP. I don't think it's worth using it's DAC as you could use a TDA1541A that would be a lot better than the 4309 and cheaper to get.

So what's the point of using the PlayStation as a CDP? The overall cost is low.

I don't think the transport is too bad, there's just no buffer. It was made for games.

A really good transport would be the jitter-free I2S CDP which is a project at DIYaudio. The only thing is that it's not going anywhere, nobody's working on it. A computer CD Player would be used to do DAE and the I2S output would be made by the 450MHz CPU.

[back]

Originally posted by Floric


I think the challenge would be the other way round: To use the PS as a DAC. Because the only thing that's excellent in the 100x is the DAC. The drive is really substandard - if I found a drive like this in a CD Player I spent money for I would reach for the axe...

I'm using the 1002 as a CD player for one year now (second drive/laser unit) and I am very content with the sound even though I use it without modifications, output stage etc. (was afraid to damage this little diamond). But I think mechannically the PS is a desaster, just listen to the sounds it makes while skipping and just have a look at the laser/drive unit.

The "perfect" budget CD player in my opinion would be the DAC of the PS with a better drive capable of reading old CDs, CDR etc. and perhaps some more comfort. O.K. there are better CD players around but you would have to spend more than 2000€/$ for them.

As far as I know, there are SPDIF to I2S converters on the market. And as far as I understood this thread right now, the DAC is fed with I2S. So is there a possibility to connect an external I2S (or SPDIF) source to the PS?

I think the result could be better than an ordinary PS.

Have a nice day

Floric

P.S: Thaks for the introduction to adjust the laser, Mick. This way I was able to restore the old laser of my PS, the "new" one is not usable any more.

sounds a good idea anybody know which leg is the I2S?

[DragonMaster]

Pins 8, 9, 10

8 : SCK
9: DATA
10: LRCK

[back]

Originally posted by DragonMaster
The AK4309AVM is a DAC like an other. The only way to make it work somewhere else would be to steal it's DAC and make a board for it. You could connect to it's I2S signals but it's not worth doing.

The on-console CDP has a lot of features, that sadly are not available without a screen.

Here the goal is to make the PSX a better CDP. I don't think it's worth using it's DAC as you could use a TDA1541A that would be a lot better than the 4309 and cheaper to get.

So what's the point of using the PlayStation as a CDP? The overall cost is low.

I don't think the transport is too bad, there's just no buffer. It was made for games.

A really good transport would be the jitter-free I2S CDP which is a project at DIYaudio. The only thing is that it's not going anywhere, nobody's working on it. A computer CD Player would be used to do DAE and the I2S output would be made by the 450MHz CPU.

i wonder why the ps1 sounds so good then

ordinary transport .dac,output but it sounds good what`s the secret here?