My new SCPH1002 console from eBay, Questions and options??

General information to do with the PlayStation 1 Hardware. Including modchips, pinouts, rare or obscure development equipment, etc.
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dreamscape440
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My new SCPH1002 console from eBay, Questions and options??

Post by dreamscape440 » June 4th, 2014, 6:03 am

Hi all

I've recently acquired a SCPH1002 console from eBay. I had a suspicion that it was chipped and after opening it yep... it was.

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I've never chipped one myself but to me the wiring job looks awful and there are bare wires on the back so this has been removed for now to clean it up later. The main issue i have though is this:

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When playing NTSC (yes genuine, US NTSC not copies) I get some sort of rainbow effect on the screen. Why is this? Is there a fix? Is the mod chip at fault?

Any info on the chip I've got and how i can fix the color problem would be great.

p.s. can you still buy psx mod chips?

Many thanks in advance. :triangle :circle :cross :square :mrgreen:
My Playstations:SCPH-1002
My Website:www.ridgedpixel.co.uk

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Re: My new SCPH1002 console from eBay, Questions and options

Post by Shendo » June 4th, 2014, 7:35 am

Oh man that's a really, really bad modchip install. I would at least fix that horrible solder job if I got it like that.
You can still buy chips or even program one yourself, files are freely available.
The one you have is a 4-wire OldCrow. For your model you should get Mayumi.

As for color, use RGB cable. AFAIK with early boards you can't just perform a simple wire color mod.
My PS1 consoles: 2 x SCPH-1002, SCPH-5552, SCPH-7002, 4x SCPH-9002, 2 x SCPH-102.
Dev console: SCPH-9002, MM3 - 7 wire modchip, PAL color mod, CH340 serial cable addon.

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Re: My new SCPH1002 console from eBay, Questions and options

Post by dreamscape440 » June 4th, 2014, 7:46 am

Thanks for your reply
Oh man that's a really, really bad modchip install. I would at least fix that horrible solder job if I got it like that.
Yeah it sure is! It's already been removed.
You can still buy chips or even program one yourself, files are freely available.
Any links? (UK preferred)
The one you have is a 4-wire OldCrow. For your model you should get Mayumi.
Can you tell me the differences? or is it just a better overall chip?
As for color, use RGB cable. AFAIK with early boards you can't just perform a simple wire color mod.
I did try a scart cable and had the same issue? I also had no sound? could of been the cable though I have a new one coming.
My Playstations:SCPH-1002
My Website:www.ridgedpixel.co.uk

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Re: My new SCPH1002 console from eBay, Questions and options

Post by Shadow » June 4th, 2014, 4:44 pm

It looks like someone tried to solder that chip whilst taking a shower and eating tacos.
The colourful rainbow effect would be that something has shorted or they have damaged a trace/via. To make sure, try it on another TV, but something is seriously damaged I reckon from their modchip install. It's too hard to tell without looking at the mainboard directly.
Development Console: SCPH-5502 with 8MB RAM, MM3 Modchip, PAL 60 Colour Modification (for NTSC), PSIO Switch Board, DB-9 breakout headers for both RGB and Serial output and an Xplorer with CAETLA 0.34.

PlayStation Development PC: Windows 98 SE, Pentium 3 at 400MHz, 128MB SDRAM, DTL-H2000, DTL-H2010, DTL-H201A, DTL-S2020 (with 4GB SCSI-2 HDD), 21" Sony G420, CD-R burner, 3.25" and 5.25" Floppy Diskette Drives, ZIP 100 Diskette Drive and an IBM Model M keyboard.

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Re: My new SCPH1002 console from eBay, Questions and options

Post by dreamscape440 » June 4th, 2014, 6:22 pm

Oh damn, that's bad :( it does only seem to do it on NTSC games perhaps its a faulty mod chip??

PAL games are perfect in every way. I've also seen that the 1002 model needs color correction with one of these:

http://www.wagneronline.com.au/productd ... 1=QXO-1100

Am i correct in thinking this is the correct fix or is it really damaged? :(
My Playstations:SCPH-1002
My Website:www.ridgedpixel.co.uk

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Re: My new SCPH1002 console from eBay, Questions and options

Post by Shadow » June 4th, 2014, 7:04 pm

Well for starters, remove that modchip. It's doing more harm than good like that.
Development Console: SCPH-5502 with 8MB RAM, MM3 Modchip, PAL 60 Colour Modification (for NTSC), PSIO Switch Board, DB-9 breakout headers for both RGB and Serial output and an Xplorer with CAETLA 0.34.

PlayStation Development PC: Windows 98 SE, Pentium 3 at 400MHz, 128MB SDRAM, DTL-H2000, DTL-H2010, DTL-H201A, DTL-S2020 (with 4GB SCSI-2 HDD), 21" Sony G420, CD-R burner, 3.25" and 5.25" Floppy Diskette Drives, ZIP 100 Diskette Drive and an IBM Model M keyboard.

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Re: My new SCPH1002 console from eBay, Questions and options

Post by dreamscape440 » June 4th, 2014, 7:42 pm

As stated in my earlier post - already done :D

Would it be worth getting a newer/better mod chip or leaving the one i've got in it but install it properly?

I've been looking at these

http://www.eurasia.nu/shop/product_info ... cts_id=278

I assume being from the UK i need the EU chip? PAL originally. :cross
My Playstations:SCPH-1002
My Website:www.ridgedpixel.co.uk

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Re: My new SCPH1002 console from eBay, Questions and options

Post by Shadow » June 4th, 2014, 9:46 pm

Development Console: SCPH-5502 with 8MB RAM, MM3 Modchip, PAL 60 Colour Modification (for NTSC), PSIO Switch Board, DB-9 breakout headers for both RGB and Serial output and an Xplorer with CAETLA 0.34.

PlayStation Development PC: Windows 98 SE, Pentium 3 at 400MHz, 128MB SDRAM, DTL-H2000, DTL-H2010, DTL-H201A, DTL-S2020 (with 4GB SCSI-2 HDD), 21" Sony G420, CD-R burner, 3.25" and 5.25" Floppy Diskette Drives, ZIP 100 Diskette Drive and an IBM Model M keyboard.

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Re: My new SCPH1002 console from eBay, Questions and options

Post by dreamscape440 » June 4th, 2014, 10:34 pm

Many thanks I have contacted Bad_Ad84 for an appropriate chip.

Thanks
My Playstations:SCPH-1002
My Website:www.ridgedpixel.co.uk

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Re: My new SCPH1002 console from eBay, Questions and options

Post by Shendo » June 4th, 2014, 11:04 pm

Are you sure you used a true RGB SCART cable and not just a Composite or S-Video through a SCART connector?
Was it Sony's 1st party RGB cable or some other?

Because colorburst signal and it's frequency (for which you would need to install crystal) is irrelevant if RGB is used.

Maybe you can check on TV what kind of signal it is getting.
On mine it shows that information in the little box for a few seconds once it gets the picture.
My PS1 consoles: 2 x SCPH-1002, SCPH-5552, SCPH-7002, 4x SCPH-9002, 2 x SCPH-102.
Dev console: SCPH-9002, MM3 - 7 wire modchip, PAL color mod, CH340 serial cable addon.

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Re: My new SCPH1002 console from eBay, Questions and options

Post by dreamscape440 » June 5th, 2014, 4:31 am

Yeah it was a proper SCART cable I'm not sure why it didn't work but I'm 99% sure it was down to the mod chip install as I've just reinstalled it and now its acting like a mod chip would (in my experience anyway).

Let me show you what I've been up to...

Heres my SCPH1002

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Beginning to strip it down

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Now for the reinstall...

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All finished time to reassemble:

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And... with a test of a NTSC NES games compilation:

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:mrgreen: :cross :circle :triangle :square :dance

But obviously... the main issue remains... does it still cause color artifacts on NTSC games...?

The answer is:

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No! :mrgreen: :dance

Given that i was using a 20 year old soldering iron with a really dirty tip and that i have pretty minimal soldering experience... I think its a win!

Now, how do you get chipped PSX's to run NTSC games in color? :D
My Playstations:SCPH-1002
My Website:www.ridgedpixel.co.uk

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Shendo
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Re: My new SCPH1002 console from eBay, Questions and options

Post by Shendo » June 5th, 2014, 5:20 am

Either your cable is faulty or TV doesn't detect that you have a RGB signal
(due to low voltage on mode selector pin maybe).

If you have a multimeter check Pin 16 on SCART connector and see if you get anything. Check Pin 8 also.
Proper RGB cable will always show color on PAL and NTSC games on every PS1 model.

The last thing you can do is to try forcing RGB mode on your TV via it's settings (if that is supported).

How many SCART inputs does your TV have? Sometimes RGB is not supported on all inputs.
My PS1 consoles: 2 x SCPH-1002, SCPH-5552, SCPH-7002, 4x SCPH-9002, 2 x SCPH-102.
Dev console: SCPH-9002, MM3 - 7 wire modchip, PAL color mod, CH340 serial cable addon.

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Re: My new SCPH1002 console from eBay, Questions and options

Post by Shadow » June 5th, 2014, 5:42 am

The SCPH-1002 needs a separate oscillator soldered in for the colour mod if you're not using RGB. You can not colour correction mod it like the newer models. Since you are however using RGB, take the steps Shendo recommends above as RGB will provide colour no matter what the circumstances are.
Development Console: SCPH-5502 with 8MB RAM, MM3 Modchip, PAL 60 Colour Modification (for NTSC), PSIO Switch Board, DB-9 breakout headers for both RGB and Serial output and an Xplorer with CAETLA 0.34.

PlayStation Development PC: Windows 98 SE, Pentium 3 at 400MHz, 128MB SDRAM, DTL-H2000, DTL-H2010, DTL-H201A, DTL-S2020 (with 4GB SCSI-2 HDD), 21" Sony G420, CD-R burner, 3.25" and 5.25" Floppy Diskette Drives, ZIP 100 Diskette Drive and an IBM Model M keyboard.

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Re: My new SCPH1002 console from eBay, Questions and options

Post by dreamscape440 » June 5th, 2014, 6:32 am

Just to confirm... this may sound silly but... AV out on the back (square connector) to SCART is RGB? or would you use the yellow red and white ports?

I'm using the AV out port.
My Playstations:SCPH-1002
My Website:www.ridgedpixel.co.uk

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Re: My new SCPH1002 console from eBay, Questions and options

Post by Shadow » June 5th, 2014, 6:38 am

By the "Square AV Connector", I assume you mean the "MULTI-AV out" in which case, yes, it is RGB unless your SCART cable isn't actually wired for RGB. That then comes into context with what Shendo mentioned. The "Yellow, White and Red" are your composite or RCA out. It's the next best video quality I find after RF, proceeding with S-Video and then RGB :)
Development Console: SCPH-5502 with 8MB RAM, MM3 Modchip, PAL 60 Colour Modification (for NTSC), PSIO Switch Board, DB-9 breakout headers for both RGB and Serial output and an Xplorer with CAETLA 0.34.

PlayStation Development PC: Windows 98 SE, Pentium 3 at 400MHz, 128MB SDRAM, DTL-H2000, DTL-H2010, DTL-H201A, DTL-S2020 (with 4GB SCSI-2 HDD), 21" Sony G420, CD-R burner, 3.25" and 5.25" Floppy Diskette Drives, ZIP 100 Diskette Drive and an IBM Model M keyboard.

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