Many moons ago I was given a SCPH-1001 with a dying laser that produced many interesting graphical aberrations in FF7. I proceded to accidentally kill my prized SCPH-101 in an overclocking accident so I transplanted its laser and modchip into the 1001. Along with that I tried to solder in a memory card to the second controller port internally. I assume I was thinking it would be cool to have internal memory at all times. Somehow in the procedure I mananged to kill the second memory card slot completely. I still have yet to test the second controller part all these years later but I doubt it works (no reason to believe otherwise). The first ports for both controller and memory card function just fine. Does anyone know of a fuse that might be blown for this? I did accidentally blow one delegated to the controllers and replaced it (after much digging on Google) but the first controller port is still the only one to function. A schematic would be nice if one is out there.
I was thinking of soldering in a card internally to my PS2 slim with some kind of kill switch so that I could still use the socket if needs be. Just so that it would boot FMCB without anything plugged in the front kind of like a modchip. I'll be keeping an eye here to see what you find, I take it that it wasn't easy to do then? Failing that I may just solder an actual mod chip in there...lol
Soldering the memory card internally wasn't hard but judging by the soldering job I did several years ago its a small miracle I didn't lift a pad. Plenty of room inside for it as well. IIRC all you'd need to do for a killswitch is to wire it up to cut VCC and VDD from the memory card. Don't think having the rest connected would cause any problems but don't take my word for it.
I pulled up the schematics for the SCPH-101 which admittedly aren't identical to the 1001 but IIRC the 101 is basically a shrunken version of the 1001. Even if it isn't I'm hoping it is safe to assume that controllers and memory cards are accessed the same way across revisions. That said, if I'm reading the schematic correctly the only connection to the controllers/memory card ports that are unique to one or the other port are connections 6 and 14 labeled DSTROB (which is odd because the controller and memory cards don't go anywhere near 14 connections). I'm not familiar with that designation but I'm guessing it means "data strobe" with what purpose I'm not entirely sure of. Regardless, each has their own connection to the CPU labeled DTROB and DTROA. Both run through their own 470 ohm resistor and then into the CPU. There are a few 470 ohm resistors on the underside of the 1001 board that visibly look fine but I'm not about to pull them out of circuit to test their values. Don't think they'd be used as fuses really but I suppose they could've gotten damaged regardless. I also double checked the fuses on the left side of the board next to the power cable only to find PS602 to test as open rather than the short I was expecting. Haven't traced it back in the circuit yet to see what it connects to but given everything else is functional on this system it seems like a likely candidate for my problem source. The fuse is labeled as "20" where as the one that I blew that provided power to the controller ports is labeled "50" and look pretty much identical to those used in the PS2. I'm hoping that means "ridiculously low voltage at 5amps" and can replace it with a larger glass fuse for ease of future problems. Anyone with insights into anything (especially what DTROB means and does) would be appreciated. Addendum: According to a word doc I just found on Google, PS605 that blew earlier is "+3.5v (cursor)" whatever that last bit means and PS602 that looks blown is "+8v (Pads)". The only controllers I've really used on this so far are original controllers, not Dual Shock. Provided that connection 3 on the controllers and memory cards is labeled as +8v on the 101 schematics and DIY memory card readers call for using ~8v for power I'm going to go out on a limb and surmise that this could be the problem. Though that doesn't begin to explain why it affects one card slot and not both.
There is a fuse on the Memory Card link. It will be in the schematic / repair manual. Everything is fused in a PlayStation. Just a matter of finding what particular or what ones gave in...
Hmm... Given the fuses for the PS1 look identical to the ones used in the PS2 (and I can't find information on decoding the numbers) I'll assume that they're identical in value if identical in stamped numbers. PS605 was labeled "20" which corresponds to a fuse rated at 800ma and PS702 was labeled "15" corresponding to a fuse rated at 600ma.
They should be the same. I never checked this though. I mean, why would they use the same numbers? So they should be the same theoretically...
Part labels on the silk screen does not mean they are the same part on completely different hardware. Case and point, the resistor used to protect efuses on the xbox 360 vs xbox 360 slim
True. I was more pointing out how inept Haunted360's post since he didn't read my post in the first place as shown by the fact he issued advice that I covered in my own post. Fuses? NO WAI! Though in this case I have a feeling sub amp ratings will work fine. What I absolutely don't need nor want is someone lacking knowledge telling me that my hypothesis is correct without any corroborating evidence. "I wonder if the silkscreening means they're the same" "Of course they are, but I have no clue really and have the Electrical Engineering experience of a Larch but won't let that on"
They probably are the same. I was just pointing out same part label doesn't automatically make them the same. Was directed at haunted too Doesn't the ps2 still use ps1 pads? That would be more reason to believe they are the same rating IMO.
Yes. I believe you can even use PS2 pads on a PS1 but I don't want someone suing me because it blew a fuse. I've personally used PS1 pads on the PS2 plenty of times.
the only hope i can offer is setting your multimeter on continuity and testing anything that looks like a fuse capacitor or resistor and transistor
