CDMA iPhone 4 logic board FPC dock connector pinout

I searched for many hours to find the pinout for the Verizon wireless CDMA band iPhone 4 so I could connect an old logic board directly to my computer via usb, but unfortunately found no such information. I ended up digging around for the logic board schematic and found the page that contained the pinout for the connector, and traced all the ground pins to find the pin order and orientation of the connector.



Minolta MD photography


Minolta MD lenses on Canon T3i

I recently adapted a couple of old 50mm Minolta MD mount fast prime lenses to my canon T3i with the help of a fotasy brand CNC machined adapter with a couple of glass elements in it to make up for the flange distance and aps-c sensor size, the results were truly quite amazing. This lens is manual focus only, and quite a narrow field of view, so getting the shot you want can sometimes be a bit of a challenge, but when you do get a shot, the bokeh is very soft and pleasing, and the depth of field is incredibly shallow.

As you can see, the results speak for themselves. The details are relatively sharp, but the bokeh is very soft due to this lens very shallow DOF


Not bad for 12$ 🙂


DIY X-Ray Source

This is the final product of my DIY zvs x-ray experiment, A full demonstration video that shows a ZVS flyback driver powering a beam triode in a cold cathode configuration, resulting in x-ray emission above 18,000 volts. The resultant X-rays emitted from this tube are just above the minimum energy level the SBM-20 Geiger tube can detect, which is around 1 keV. Because of this, these x-rays are what are known as soft x-rays, which are mostly absorbed by the leaded tube glass. The x-rays that successfully penetrate the tube glass carry on for around 10 feet before my Geiger counter is no longer able to detect above background. The tube glass glows a beautiful blue color as it fluoresces, and the resultant detected x-rays lie in the 2000 CPM and 18 uSv/hr zone, which varies with distance. I believe these x-rays are too low energy to activate my x-ray cassette, which is used for photographing broken limbs. The substrate of the cassette is DuPont Cronex Super Pan-O-Screen. With a number sequence 022309 following. The soft x-rays produced are quickly attenuated in water and air, resulting in 10 foot carry distance and also necessitating lead shielding, since the body is mostly water, the x-rays attenuate fairly quickly in skin, therefore making it impossible to image with this system due to none of the x-rays successfully penetrating your body and instead all being absorbed. I wear a lead lined radiology jacket when experimenting, which completely blocks all radiation exposure from soft and hard x-rays.


PowerNAS Pentium (PowerMac G4 ATX Casemod)

So I had an old Powermac G4 laying about and decided, hey, it looks pretty cool, maybe I should casemod it! I needed a NAS, (network attached storage) and figured I would try giving this old mac a new lease on life with a paint job, some metal hacking, and a micoATX motherboard! This was a ridiculously over complicated case, I suggest people stay away from the g4 for modding, unless you really like the way it looks, as it was not particularly difficult, but a real pain to get working correctly. I was also doing this with extremely limited set of tooling, that being; a drill with dead batteries, shears, a hammer, and jb weld, since all of my more useful tooling was packed away. (hint, a drill press would have been FANTASTIC.)


First came disassembly, and anyone who has taken one of these apart will know how non-intuitive it is when you first try it. The Motherboard is held in with small hooks that grip the sides of the mounting holes, while a few screws lock it in place, the cpu cooler is held on by VERY sturdy clips and bolts, and the cables are routed in such a way it takes some serious force to separate them. Then comes the plastic case parts, these are a nightmare, it took me hours to get this thing apart the first time… Four bolts holding in the panels PLUS really tough clips?? Apple really makes some insane gear, as this thing is a safe, it even has a lockbar! After finally taking it apart I put it aside while I searched for some nice surplus computers that were NAS worthy.

System found! I located a 2010 vintage DVR computer for television recording with some decently grunty internals. What was inside was a microATX Jetway m15-g41sgmd3-lf with an Intel Pentium Dual core 2.7 GHz Processor, 1GB DDR3 RAM, and a stock cooler. The power supply was an insanely oversized 560 watt AcBEL unit, and it also came with extra sata cables, and a few other bits and bobs. Score! especially for free!

I then began the process of painting the plastic parts, which was, and still is, a nightmare. I used a valspar paint+primer in black and white, however it was an extremely weak paint, boasting little protection from the elements, therefore, a clear coat was added. Unfortunately, the clear coat destroyed the paint job, rendering the black painted parts uselessly milky. Fortunately, I had a black rustoleum paint+primer that was stronger and somehow matched the valspar. Unfortunately, it is still just paint and already has chips in it. Moral of this story, spray paint is a waste of time more often than not, but either way, it still looks fantastic for what it is, much better than the horrendous clear grey and blue that it used to be!

IMG_1140 IMG_1130 IMG_1131

Mounting the ATX hardware was not necessarily difficult, but also not very straightforward. The power supply required me to drill a network of holes in the side of the case so it could somewhat properly intake, and the motherboard required careful placing of the mount points so the pci slots would line up properly with the board. I also had to deal with narrow windows for cable routing and cooling, as I still wished to use the stock disk drive tray and fans. A notch had to be cut out of the disk drive tray to accommodate the ATX power connector, and the original IO shield needed its rivets drilled and removed so the IO on the ATX board could be used. To cut the shield off from the pci slots, I simply drilled holes in a line and snipped it off. When everything was ready I carefully positioned the board and jb welded the standoffs to the base plate. The disk tray was hen put in, wires tied, and a power button made. I also decided to omit the case latch since when i found this mac the latch plate was broken and i did not wish to integrate it into the ATX design.

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A Beautiful Old Processor; PowerPC XPC7400

Is it an Intel? An AMD? No! It’s a PowerPC Motorola XPC7400 from a PowerMac G4! I have never owned a mac, and when I got this old G4, I immediately disassembled it and was surprised by this nicely engineered processor daughter board,a nice contrast to the normal socketed processors. shame apple dumped powerpc, it’s always nice to have something a little different from x64/x86.




Linksys WRT54GX2 Serial sniffing


I decided to read off my old Linksys WRT54GX2 Serial Data line, and this was what I got. I haven’t done anything with it, I was just curious and thought I would upload it if anyone wants it. Also, The serial pinout for anyone interested.


00][00][00][00][00]!@#$^&*()-+|abcdefghijklmnopqrstuvwxyz.[1B][?8l[1B][?3l[1B][?5l[1B][2J[1B][1;1H(c)Copyright Realtek, Inc. 2003




Version 00.00.18(uClinux) (Jun 21 2005 19:38:14)


LDR version 1.00.05 for identification


[865xB] CPU Clock Rate: 200MHz, Memory Clock Rate: 130MHz


AMD/Fujitsu Standard CFI Query Table v1.1 at 0x0040


Detected flash size: total 4MB.


SDRAM size: 16MB


+TFTP +Auto UART +Bank1:ROM


Here we try to capture the default reset button: None.


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