thoughts on Digitech Space Station eprom copying?

Started by Processaurus, June 07, 2007, 10:02:50 PM

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fendrix_81

well thx, i think too that is the input signal problem "maybe guitar with active pickup and too hot input trimmer signal".
by the way, a question: i want to mod the digitech xp to convert for example in the xp 300 model. i have a pdf where i can to have 4 pedals in 1 "xp 100 200 300 400".
if i only want to make an xp100 like a xp300, what i have to mod extacly?
and is possible to mod a xp200?
thx

Govmnt_Lacky

Quote from: fendrix_81 on October 07, 2012, 12:51:16 PM
well thx, i think too that is the input signal problem "maybe guitar with active pickup and too hot input trimmer signal".
by the way, a question: i want to mod the digitech xp to convert for example in the xp 300 model. i have a pdf where i can to have 4 pedals in 1 "xp 100 200 300 400".
if i only want to make an xp100 like a xp300, what i have to mod extacly?
and is possible to mod a xp200?
thx

Answers to all of your questions can be found in THIS thread.  ;D
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digi2t

Does he have any other effects in the chain, or is he going guitar - XP100 - amplifier?
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pinkjimiphoton

i think i'm gonna have to mod my xpALL with the output level control..
i used it at the gig friday...A LOT  ;D

amazing how many spotsstops i could interjecttcejretni patch 10 from the xp300003px

but i DID have to pretty much turn the input trimmer just about off, or it was overdriving the snots out of the rest of the chain.

i ran a ge/si fuzzface first, then the space station, then the shin ei 6tr superfuzz, into my usual line up (mictester's super cheap compressor, fuzz face, crybaby, klon(e), SHO, dim C, hash browns flanger, fx17 (set as a volume controller) ,nova delay, rotovibe,clone theory and rebote >> princeton) and it really made the FF sound bad until i backed off most of the input gain..that one control now controls the overall gain of my whole signal chain, so i'm figuring it's got a hot output, necessitating the further mod with the stacked output pot.

i absotively love the xp100 and 300...the xp200 is useful, xp400...well...ummm...cool to have, but wtf were they thinking?

looks like mostly i'll be using the xp300, but it's nice to have the whammy on board, too.


that said....still sounds to me, like the active pickups are overdriving the input of fendrix's xp.
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fendrix_81

he just run the guitar into xp 100 and to amplifier, by the way i guess he has got active pickups..
about the mod "4 in 1", have i to solder the 4 memories one over the other? how can the selector to choose the memory the extacly memory?

pinkjimiphoton

you would need to research how much memory you need, and add accordingly.

you don't HAVE to add all the modules if you don't want to deal with it. to me, xp100,200, and 300 are the important ones.
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Govmnt_Lacky

Quote from: fendrix_81 on October 07, 2012, 04:07:41 PM
he just run the guitar into xp 100 and to amplifier, by the way i guess he has got active pickups..
about the mod "4 in 1", have i to solder the 4 memories one over the other? how can the selector to choose the memory the extacly memory?

If you are modding an XP100 then all of the info you need is in the PDF document that you downloaded.

If you are modding an XP200, 300, or 400 then you will need to do a little research but it is very do-able.
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fendrix_81

well thx for the answer,
so following step by step the guide pdf i will have 4 pedals in 1 right?
thx for suppot friends!! :)

Govmnt_Lacky

Quote from: fendrix_81 on October 07, 2012, 04:57:31 PM
well thx for the answer,
so following step by step the guide pdf i will have 4 pedals in 1 right?
thx for suppot friends!! :)


If you are modding an XP100..... Yes  ;D
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digi2t

QuoteIf you are modding an XP100 then all of the info you need is in the PDF document that you downloaded.

If you are modding an XP200, 300, or 400 then you will need to do a little research but it is very do-able.

Actually, modding a 200, 300, or 400 into an XP-ALL isn't that complex. Just need to stack all four EPROM's, without the sockets so they fit under the hood.. I have the XP100 code for a 27C256 EPROM. Everything runs off the EPROM's. Switching, wiring, etc. would be all the same.
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FuzzAldrin

Ok, so if I have a modulator and I wanted to turn it into a 3 in 1 (200-300-400) and NOT include the xp100, it would be easy because I wouldnt have to add all the other components, correct? Just get some extra RAM and 3 Eproms?

markeebee

Can anyone (UK pref, or EU) program some of the EPROM for me?

I've got hold of a batch of 11 chips, if you someone could program six of them (i.e. 2 each XP200, 300, 400) I'd be happy for you to keep the other five.  Or I could send other interesting parts if you prefer.

Also, and apologies if this has been asked before, has anybody found a decent source for the RAM in UK or EU?

digi2t

QuoteOk, so if I have a modulator and I wanted to turn it into a 3 in 1 (200-300-400) and NOT include the xp100, it would be easy because I wouldnt have to add all the other components, correct? Just get some extra RAM and 3 Eproms?

That's correct. Just go over the board to ensure that there are no missing components. If there are, add them, and use the EPROM and wiring strategy as per the build document.

QuoteCan anyone (UK pref, or EU) program some of the EPROM for me?

I've got hold of a batch of 11 chips, if you someone could program six of them (i.e. 2 each XP200, 300, 400) I'd be happy for you to keep the other five.  Or I could send other interesting parts if you prefer.

Also, and apologies if this has been asked before, has anybody found a decent source for the RAM in UK or EU?

Mark, check the Stompbox section post, I replied there.

As for the RAM, I found this guy on EBay;
http://www.ebay.ca/itm/261052206092?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

I managed to buy from him at 2.60$ a piece, which is REALLY good.
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fendrix_81



please listen the xp100 that i will buy
the little distortion is made from a bad recording, the amp is clean.
turn up the volume and listen. it is normal?
https://rapidshare.com/#!download|285p4|465181259|Digitech%20XP100.mp3|629|0|0


fendrix_81

did somebody buied the 27c256 used or new?
there is somebody who sell for only 1 euro for piece but they are used
so i would like to know is maybe i can have problem with the chip "maybe broke" or just can be ok using an eraser.

fendrix_81


Govmnt_Lacky

Quote from: fendrix_81 on October 08, 2012, 04:22:20 PM
is the a100k dual gang pot, a lin or log?

A = Log
B = Linear
C = Anti-Log

A100K = 100K Log pot
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digi2t

Quoteplease listen the xp100 that i will buy
the little distortion is made from a bad recording, the amp is clean.
turn up the volume and listen. it is normal?
https://rapidshare.com/#!download|285p4|465181259|Digitech%20XP100.mp3|629|0|0

That sounds like the input of the pedal is really overloaded. That's what mine sounds like if I have the input volume up too high and it's clipping.

Quotedid somebody buied the 27c256 used or new?
there is somebody who sell for only 1 euro for piece but they are used
so i would like to know is maybe i can have problem with the chip "maybe broke" or just can be ok using an eraser.

I've bought used EPROM's before, and to date, I haven't had a problem. As I've mentioned before, I always send them through the UV eraser first before programming. Just remember though, used is... well.... used. Buyer beware!
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Govmnt_Lacky

Quote from: fendrix_81 on October 10, 2012, 10:56:29 AM
would be good this eprom?
http://www.ebay.es/itm/220901718670?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

That is NOT the eprom. That is the RAM chip. An XP ALL requires 4 of these to operate correctly. I believe the XP100 and XP200 come with 1 of these already installed (each). The XP400 comes with 2 or 3. And the XP300 has all 4.

The EPROM that you need is a 27C256 that is UV erasable. They look like this:



You need to make sure the chip has the window in the center  ;D
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