Sony CMH-333 "Mars Bar"


There seem to be two types of cmh-333's out there, with two different NAM programming sequences. One is the old method, so called because I had it before the new one.

To change the ESN, there is a program by The Cheese Factory that requires a cable to be built. I have two different packages that include this program, first try the CCC version (hit esc at the first screen). If you are having troubles, grab the Citronics version. The Citronics one has to be installed to a floppy.

Here's a diagram of the cable required:


The end of the cable that connects the phone is a bit tricky. I myself have a
load of little PCBs that slot into the correct part of the phone and I solder
the wires onto this every time I make a cable up. If you know me personally
I can sort you out with an end, if not they're easy enough to make up on a 
PCB machine, and if you're _really_ stupid you can buy the cables at next to
nothing prices out of Exchange & Mart or something these days.
              
               
           _________________                 _________________
          |  | | | | | | |  |               |  | | | | | | |  |
          |  | | | | | | |  |               |  | | | | | | |  |
          |          | | |  |               |        |     |  |
          |          | | |  |               |        |     |  |
          |          |  \|  |               |        |     |  |
          |          |   |  |               |        |     |  |
          |          |   |  |               |        |     |  |
          |_________ | _ | _|               |_______ | ___ | _|
                     |   |                           |     |
                     |   |                           |     |
                     |   |                           |     |
                     |   |                           |     |
                    [R]  |                           |     |
                     |   |                           |     |
                     |   |                           |     |
                    [19] [20]                       [11]  [8]


Value of Resistor R = 10k
Numbers in square brackets represent Pin number on D-Plug (-> Printer Port)

The large squares represent the top and underside of the phone end of the 
cable. You should have a small PCB with 7 contacts at the end (represented
by  |  in the diagram above).
    | 

As you can see I was never any good at ASCII diagrams...

That should set you on your way.

=(*)=Pulse=(*)=