damn I wish I could solder half a damn I would build a custom with the cthulhu
The whole idea of the assembled board is that 0 soldering is required. 
Add some wires and buttons and youre done with just a screw driver.
As Iâm guessing you misses my last post, Iâll mention it again. We defined that the problem with the board would be a short, but the problem being I see no solder touching anywhere on the board, it looks like you did a good job regarding that. So, my question then is, whatâs next when a short isnât caused by the likely reasoning of a short 
ah thatâs why.
my 360 pcb does have common ground.
seems it wonât work with your cthulhu combo.
need to rethink.
maybe try it in my ps1 namco stick, hehe.
come to think of it, iâve seen other people doing it with madcatz joypad pcb and cthulhu combo and it works.
Donât wanna but in, but if this helps, you may want to grab yourself an XBLA madcatz fightstick from either gamestop or gamecrazy. I just finished up a dual mod using the MC board and a madcatz fightstick soldered to MC board (A-H and 1-9)and and have had no issue. Once youâre all wired you can tie/heat shrink both cords toghether, or just grab a plastic sticky mount from RadioShack and use either a zip tie or velcro to keep your unused cord in the case while playing either system
thanx.
i was planning on buying a madcatz pad or the stick you said.
need to find it in holland though.
then iâll continue my stick.
i think the problem is the microsoft pad.
or i need to try only with 360 pad and if that works then put in the mc.
but it cost time.
At the risk of sounding rude, I think youâve completely missed the point of the answer I gave you. Your pad is NOT common ground, and will not work with the Cthulhu (without massive additional electronics). Get a common ground pad and try again.
i got the late version microsoft 360 pad that is suppose to be common ground.
but iâm getting a madcatz pad to be sure because everyone works with a madcatz pad which got common ground for 100%.
Is there a useful how-to anywhere on how to dual-mod a TE with the assembled board?
Hey I brought 24awg wire itâs 2-conductor solid. Color is black and white. And says intercom wire on the bottom. Is this the right type of wire to duel mod my se? The people in radioshack had no clue about any of the wire types lol
So I misread the instructable for assembling an MC Cthulhu and soldered the jumper for âUSB onlyâ for the MC Cthulhu and then put the diodes in place. Everything worked fine when I used the Cthulhu only for PS3 in a 360TE and Cthulhu/PS3 mod, but then I decided to add PSX functionality so I solder on the PS cable to the appropriate points and the PS cable wasnât working. After realizing that âUSB onlyâ isnât supposed to be soldered for MC Cthulhu, I desoldered it immediately and tried the PSX functionality, but still no dice, but the PS3 functionality of the Cthulhu is still operational. Basically, what are the consequences for:
1.Soldering the âUSB Onlyâ Jumper on the MC Cthulhu
2.Adding GC/PSX/Xbox1 functionality
3.Plugging into all systems PS3/GC/PSX/Xbox1 to see if they work
4.Desoldering âUSB Onlyâ Jumper on the MC Cthulhu and then plugging into all the systems again to see if they work
iâm assuming the worst, and I have fried the MC Cthulhu
No consequences at all. The only possible problem would be if you plugged it into multiple consoles at once; if that were the case, then the diodes should protect the consoles. No matter what, the board itself wonât be damaged.
You just need to recheck your PSX wiring.
Thatâs great news, I just want to confirm that for the MC Cthulhu to be Multi console, the âUSB Onlyâ jumper should not be connected, and desoldered. Does it matter which VCCâs I am soldering to whether itâs 1-V, the A - VCC, or the screw terminal VCC point? I have the 360 TE VCC and the PSX cable VCC spliced together and both connected to the 1-V VCC point.
Thanks for the immediate repsonse :karate:
Hi toodles,
So I recently purchased a few MC Cthulhu boards for several projects, one being an old mas stick (i know you donât necessarily support mc sticks outside of fight sticks, but maybe you could shed some light.)
This mas stick has competition buttons and a happ perfect 360 - iâve successfully installed the cthulhu PCB and have both ps2 and ps3 working with the p360 successfully.
However, anytime I attempt to piggy back an additional board (dreamcast, xbox 360), everything stops working. I have successfully done several MC sticks by connecting VCC points and common Grounds on all PCBs, so I am well aware on how this should work.
The interesting thing is that when the p360 is not connected in any way shape or form (5v specifically), the pcbs operate as they should. When I attempt to draw power from the VCC of any board for the p360, thatâs when everything stops working.
Do you know of any particular issue with running a madcatz retrocon pcb + mc cthulhu + p360? i know itâs a particular use case, but I am running into issues. I have modded many sticks, and this is the first issue of its kind i have seen.
Thanks,
yoon
EDIT: One more thingâthe odd thing is that this mas stick once had a standard ps3 cthulhu, psone pad, and dc all functioning correctly with the p360. It was when I switched it to a brand new mc cthulhu that everything freaked out
Oh god yeah.
What??? No No no, BAD Truckasaurus, BAD!
The whole idea of the diodes is that all of the power from any console must go through a a diode, so power canât go back to the console; to protect it from pulling a stupid and plugging in more than one cable. By connected them all together, youâve completely made them useless. That is completely against what the console cable Instructables says to do, and what any of the instructions for dual modding says to do.
I have an uncanny feeling that Iâm being ignored. D:
Why for truckasaurus bad? Me no like think.
Iâve got the 360 PCB going into the âAâ spot, psx cable VCC going into the âVâ Spot, row 1, and Iâve got the screw terminal VCC going out to the IMP switch. Is that the proper placement for VCCâs?
Iâm a little fuzzy on your setup, so this is with the assumption you have a PSX cable and a USB cable on your stick
USB cable power -> Imp
Imp VCC wire-> one of the V columns on the Cthulhu (doesnt matter which)
PSX VCC wire -> a different V column (preferably rows 1 or 2)
(one of either the VCC screw terminal or unlabelled point A) -> 360 VCC
So the power from the USB cable goes through the Imp to the Cthulhu V column so it goes through a diode. The power from the PSX cable goes a different V column so it goes through a diode. That way, all of the power lines go through a diode then powers the Cthulhu, and by using the VCC screw terminal or the unlabelled point, the 360 pad.
According to your post, the voltage on the VCC screw terminal when plugged in was below 2 volts. You then unplugged everything from the board and tested the resistance between the VCC and GND screw terminal, and showed a resistance far less than 1k ohms. Thatâs a short. If you assembled the board yourself, you need to hunt down the short and fix it. If you bought it preassembled, you should check with the folks who sold it to you to see about a replacement.
Sounds like youâre pulling too much current. I donât know exactly how you have things wired up, but move the incoming USB power line from the USB cable or the Imp to one of the V columns using the black diode (column V, row 1 or 2). Also doublecheck the PSX VCC is also going through the other black diode. (The glass diodes are rated for about 100mA before problems; p360âs pull in the area of 60 or more milliamps by themselves. The black diodes are rated for a full amp, 1,000 mA, if I recall right). Also make certain the p360 and xbox360 pad are both powered from either the VCC screw terminal and/or the unlabelled VCC hole.