1. So how does one remove the EPROMS from the CPS2 board so that it could be phoenixed?
2. Do you have to solder them off to take them out and solder them on to put them back in?
3. I never soldered before so it would help if I have a step by step diagram (actual pictures are better) to do it.
Thank you.
Removing EPROMS for phoenixing CPS2 Boards.
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OldFoo
The Program EPROMS on CPS2 PCB's are all socketed. The propper way of removing them is to use an IC puller which looks like this :
Its used like a pair of tweezers to securely pull each EPROM out of its socket without bending the pins.
The other (more common) way is to insert a plain flat blade screwdriver under each and in turn and gently lever them out.
MrS
Its used like a pair of tweezers to securely pull each EPROM out of its socket without bending the pins.
The other (more common) way is to insert a plain flat blade screwdriver under each and in turn and gently lever them out.
MrS
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OldFoo
MrSporty wrote:The Program EPROMS on CPS2 PCB's are all socketed. The propper way of removing them is to use an IC puller which looks like this :
Its used like a pair of tweezers to securely pull each EPROM out of its socket without bending the pins.
The other (more common) way is to insert a plain flat blade screwdriver under each and in turn and gently lever them out.
MrS
Where can I buy an IC Puller? I went to Fry's I couldn't find them. Do these tweezers also work with Naomi EPROMS? Thx
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OldFoo
To be honest i have never bought a pair of them. I have one or two in the bottom of my tool box because they tend to come with those crappy "48-in-1 PC Technician" tool cases you can buy from Staples or any other big office outlet (Im UK based btw).
In use they are pretty nice for smaller DIL chips like 74 logic IC's or Microcontrollers but for larger stuff like EPROMs they can be a bit of a struggle. In all honesty a nice flat screwdriver is fine as long as your gentle.
In use they are pretty nice for smaller DIL chips like 74 logic IC's or Microcontrollers but for larger stuff like EPROMs they can be a bit of a struggle. In all honesty a nice flat screwdriver is fine as long as your gentle.
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OldFoo
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OldFoo
superguile wrote:Once you take a EEPROM will you kill the whole board? So if I take it out and put it back in will it start up again?
Yes you will kill the board. The only reason why you would pull the eeproms to get phoenied is if the battery already died and the eeproms are already dead. If your board is playing fine, its actually easier (and cheaper) to just replace the battery every 4 years or so.
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OldFoo
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OldFoo
RAZ told me the board would die when the EPROMS are removed, so suggested I just do a battery replacement on my still live board (which i thought was nice of him not to try get more ca$h from me)
Something to do with the security chips realising the EPROMS are missing & killing the board. Apparantly (from what little research I've done into this & CPS3) the security chip kicks out a signal if you try and read the chips, and again kills the board
Something to do with the security chips realising the EPROMS are missing & killing the board. Apparantly (from what little research I've done into this & CPS3) the security chip kicks out a signal if you try and read the chips, and again kills the board
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OldFoo
dj_johnnyg wrote: Apparantly (from what little research I've done into this & CPS3) the security chip kicks out a signal if you try and read the chips, and again kills the board
If Raz says so then be it, I still wonder how they (Raz and others) where able to run troians on their boards without replacing the program Eproms. :smt017