PS2 Controllers

Hi folks
I have come a cross a pretty massive bundle of PS2 controllers that I am trying to repair, I have learned that there seems to be no rhyme or reason as far as the model number on the back of the controller and or the letter designation, A, H or M, I have opened like 50 and internally there are variations, this makes it a challenge for buying parts.
Some of the PCB ribbon circuits are removable and those are easy to replace, but there are some that are soldered and all I can find online are not a match, even the ones that comes with the connector, after ordering some replacement parts I realize that the connector on the controller has 19 PIN and I got the 18 PIN version and so far I haven't found one in my large pile that has 18 PIN's, also none of the PCB ribbon circuits have 19 pins, does anyone has a list or chart that explains the mystery?
I like to get at least 150 repaired if possible.
Thanks

 

Good luck, I gave up a long time ago. It is a complete crapshoot which flexboard you need except for the H controllers which usually have the soldered version.
Edit:
A= Alps
H= Hori
M= I forgot who made these
The letter refers to who they outsourced the controller to that day.

 

Don't H controllers of all kinds (sans the non analog version) have interchangeable casings? (i.e DS2 controller, H-type in PSone (white) H-type controller casing)

 

No idea

 

I just checked:

A = Alps
Those are a royal pain in the rear to work with. They have a pretty fragile membrane that connects to the main PCB with nothing else but foam that contains the analog sticks. I personally had one and I had to throw it away because of that membrane breaking.

H = Hori
Those are the easiest to work with. No membrane, PCBs are connected through a soldered ribbon cable so you don't worry about any membrane breaking. Quite easy to find along with A-type controllers.

M = Mitsumi
About as hard as Alps, so all I said about Alps applies here. Pretty rare to find though.

 

It is more complex than that here are the variants I have seen
1: Soldered on Flex Board very common usually seems to be Hori only worst reliability.
2: Foam pressure mount Flex board common Alps variant, prone to wierd issues if the shell is damaged
3: Left side plug in Flex board common Alps variant
4: same as 3 but the Flex board plugs in on rear side of the pcb
5 Right side plug in Flex board, seems the be the only Mitsumi variant and has a 7 screw case rare but seems to be the most reliable
6: Dual plug in Flex board Alps likely early JP or dev controller, N1158 is a sticker and a patent sticker on the controller. Rarest of all variants, only ever seen 1.

 

Ah yes.

1 - Usually inserted in a non removable connector.
2 - That was the one I threw away. It has to be the most fragile membrane w/ flex I've ever seen. L2 traces broke on mine.
3 - Common Alps variant
4 - Early Alps variant
5 - Matches all Mitsumi made Dualshock 2s
6 - Can't find any results on that... do you have any pictures? That sounds interesting.