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Old 7th July 2006, 01:02 PM   #1041
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Default Volume level

Hi Guy's, just a quick question on the PS1's internal volume control.
If I remember correctly (it's a while ago now!) you can control the volume of games from their menu screens. If so, then is it possible to control a CD's volume from any of the screens?

Also, would that be linked in some way to the opamps after the DAC or done before?......I've bypassed the output section so it's quite relevant!

Cheers chaps

Lee
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Old 7th July 2006, 01:58 PM   #1042
Mick_F is offline Mick_F  Germany
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John, thanks for your detailed description. Please let us know what you think about the 1002 and the output-stage modification.

Lee, I cannot answer your first question, but I am sure that the opamp after the DAC can not be used for on-screen volume control.

Mick
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Old 7th July 2006, 04:31 PM   #1043
phn is offline phn  Sweden
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John, I recently sold my speakers. The guy buying them knew how they sound, but you still want to know that they aren't defect. He was surprised I used a PSX. So I switched to my DVD player. He preferred the unmodified PSX. I doubt he will ever use one. It doesn't fit in with the audiophile "mindset."

Lee, I know you can select filters like echo and such. But I know nothing about volume.

By the way, someone here mentioned the model 550X. I don't remember who, but he has a black-colored PSX. I didn't know, but I have one of those laying around as well. Opened it up and it looks ideal for modification. Looks much neater than the 100X, which probably was rushed, as all commercial products. As a gaming device, the 100X is easily the worst model, having poor anti-aliasing. The 550X is identical to the 100X save for the lack of RCA jacks, if I remember. It should be ideal should you want to re-case the PSX.

Maybe old, but this should give an indication of how relatively few 100X units are in existence.
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Old 7th July 2006, 08:53 PM   #1044
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Default Best for modding - the 1002 or 5502?

Quote:
Originally posted by phn
.........

By the way, someone here mentioned the model 550X. ........... Opened it up and it looks ideal for modification.............. The 550X is identical to the 100X save for the lack of RCA jacks, if I remember. It should be ideal should you want to re-case the PSX.


In my part of the world the SCPH 5502 is easier to find than the 1002. From reading these posts it seems most people use the 1002 (or 100X). Has anyone had the chance to modify the 5502 and 1002 and compare them?
Does the 1002 sound better than the 5502?

thanks
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Old 7th July 2006, 09:11 PM   #1045
phn is offline phn  Sweden
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I was too hasty. I did a search and only came up with 100X and 550X. Apparently there's a 500X and 555X as well.

More info here.

Here's a translation (google) of the relevant part:

SCPH - 5002: Approximately to the 1002, somewhat more slowly

SCPH - 5502: something center-stresses however very fast and spritzig, not completely in such a way spatial like 1002

SCPH - 5552: Allegedly also very properly playing Playstation (here is present me however only 1 comment)
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Old 7th July 2006, 10:24 PM   #1046
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There was also the SCPH3000 and SCPH3500, made for the Japanese market. I found a 3500 in a local Value Village store- it appears to be much the same as the 1001/2 players- sounds as good as my best (unmodded) SCPH1001.
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Old 8th July 2006, 12:25 PM   #1047
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Hi

Today in West OZ, Playstations were on sale for AUD$20
So I went and tried to get another SCPH1002 but
ended up with a SCPH5502 or so it said on
the bottom! It was shrink wrapped and with a
3 month warranty. The others I have
purchased were packed the same way but were SCPH1002s
Well inside it looks like a later model and also
claimed to need just 9 watts rather than 12 watts
to power it! Question is is it still a true 5502
despite the differing features(Ie moving the laser
transport over to the right away from the power
supply heat or have I been deceived? The buttons
had symbols rather than text on them so could it
be a hybrid repair job?? Does it still have the
separate oscillator of 67.7376MHz like the 1002s??
Picture is of this suspect called 5502 on the left and
a genuine 1002 on the right. The 1002 have five screws
and this 5502 had six screws to take of the top cover.
I always throught the 5502 was just a 1002 without the
RCA outs! Was I wrong?

Regards

AnthonyPT
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File Type: jpg 5502mystery.jpg (13.8 KB, 980 views)
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Old 8th July 2006, 12:29 PM   #1048
Mick_F is offline Mick_F  Germany
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Quote:
Originally posted by AnthonyPT


I always throught the 5502 was just a 1002 without the
RCA outs! Was I wrong?


Yes you were. The PS on the left may well be a 5*** and the description in your text fits also. All PS but the 100x have the laser on the right and symbols on the buttons.

Mick
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Old 8th July 2006, 12:55 PM   #1049
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Hi Mick,

Thanks for clearing this up.
So the 5502 removed the RCAs and fixed the
overheating for the power supply. So to be clear;
does the 5502 still have the separate oscillator
of 67.7376MHz like the 1002s thus giving it the low
jitter magic that is the 1002??

Regards

AnthonyPT
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Old 8th July 2006, 02:31 PM   #1050
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Quote:
All PS but the 100x have the laser on the right and symbols on the buttons.
Not so sure...
I bought a Japanese SCPH-7000 at my local game store, and they use letters instead of symbols. Also, the PCB and shield are lower (There's much more shielding too) and the transport has higher pins under the rubber mounts.)
It uses a separate DAC also. The only problem being that select button is a visualization mode instead of stop.

Looks like 5502 except the transformer is grey instead of yellow. (And the !#?@$ wire plug isn't exactly the same, since they use 100v, but they have the same wall plugs and the problem is that I just didn't buy the wire, so I use a DIY wire using alligator plugs)
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