Testing with PT-04 II -
SUCCESS!
Although I'm getting inconsistent results. Trigger sometimes not firing the flash. Actually more miss than hit. A little research and turns out there's something about the current being sent out by the receiver to the flash that isn't enough to trigger it. Oh well, at least I know that everything inside the Di622 is running alright. Now to test this with the RF-602
Thanks RECON25 for lending me your PT-04 II. I'll return it tomorrow Sir if your at home, doul raman diay ta.
The Setup

Modified Nissin Di622
Phottix PT-04 II
* The pc-synch cord is a bit long and has a bigger end so I had to install a converter so I can fit it back to the 3.5mm female jack on the side of the flash. Table messy with burns from the soldering iron
For the curious mind, this is where I get the info and how I did it.
http://www.youtube.com/watch?v=S6EzCU03ymQ
http://www.youtube.com/watch?v=0VKEvpTPOis