FS: Reproduction 720 Encoder & Centering Discs

[Daviea]

I've got a fresh batch of reproduction 720 encoder and centering discs ready to go. KLOV special is $15ea including shipping. I'm holding this offer open for 1 week only. After that, it's back to website prices which is quite a bit more.

Here are some quick snapshots of the actual reproduction discs. These are bright and shiny stainless steel parts, but the flash of the camera is killing the sheen for whatever reason. They look MUCH better than this. Just imagine all of my other reproduction parts and apply liberally. LOL

Encoder Disc:

Centering Disc:

$15 EACH including shipping to any address within the United States.

My paypal email address is [email protected]

Enjoy!!!

 

[kspiff]

I wanted a new control stick, but I'm glad I waited since I need these even worse. Payment sent. I'm sure it will be great (as everything I've bought from you up to now has been).

 

[Daviea]

Thanks for the order. I really do enjoy making these reproduction parts. I have many other parts ready for the 720 controller. In fact, I've got pretty much everything ready (except for applying the anodizing/plating) aside from the upper and lower housing components which should also be finished up sometime soon. At that time, I'll be shipping the full repro controllers.

BTW, I made these discs in-house. I have a nice photo-chemical etching setup that I picked up at auction recently. The process is actually pretty easy to grasp. It's a lot like etching circuit boards which I'm an expert at.

Watch for the Tempest encoder discs which should be done in a week or two.

Dave

 

[jetusenet]

Dave;
Are you trying to get every last penny I have!!!
Stop selling these excellent parts!
Please!
Jeff

 

[88mph]

Sweet! Payment sent for an encoder disc (and some other stuff).

 

[Ghostkiller]

My 720 doesnt seem to keep its position after playing a few games. Is this what these do?

 

[88mph]

The disc with the 72 holes is used to for the game to keep track of spinning direction and spinning speed. The disc with the two notches is used to keep the skater aligned with the direction of the joystick. You might have an issue with the optic set that views the double notched disc, a bad connection, etc.. What happens when you put your 720 into test mode?

 

[Ghostkiller]

The disc with the 72 holes is used to for the game to keep track of spinning direction and spinning speed. The disc with the two notches is used to keep the skater aligned with the direction of the joystick. You might have an issue with the optic set that views the double notched disc, a bad connection, etc.. What happens when you put your 720 into test mode?

I just brought it home late last night and havent even had a chance to get a look at the internals was just curious as to what these actually did.

 

[2600]

FYI, just got a few of these from Dave and they are beautiful. They came in a box and inside were sandwiched in cardboard to prevent damage.

Thanks again Dave.

 

[gr8dane]

Just got a couple of these, the encoder disc is perfect, although extremely tight fit compared to original. The centering disc main hole is a very tiny bit too small to fit over the placement ring, had to do a little operation for it to fit right. Might want to enlarge the hole a tiny bit for another run?

 

[Ghostkiller]

ok just an update on my issue, not trying to trash this thread or anything, I got it to come up in test mode now slow rotations it sees it all day long and centers at 12 o clock like it should but if you try and do a fast rotation some of the squares arent registering and it seems to be the same ones not random. Also theres a slight stiff spot in the rotation though i havent quite been able to pinpoint it to the square locations that arent registering. I did notice my discs are a tad bit warped but they arent hitting the optics although on parts they do come rather close. Any thoughts on what I need to get to fix this issue? Also it seems if you calibrate it and start a game it plays perfect but once you get into the later (faster spinning) levels its like the joystick is off by 20 degrees or so and its sooooo annoying yet you go right back into calibration mode and it picks up the center and re calibrates itself and you go back in the game and its just fine till you start getting into the faster parts of the game.

 

[88mph]

Any chance that you have a flaky encoder board? If the IR emitters are wearing out, or if the optics have been chewed up, you could experience intermittent operation that way. If you have a logic probe, I would recommend hooking it up to the pins on the encoder board, and turn the joystick. You should lots of logic activity on the 72 hole disk encoder and isolated blips when the centering notches enter the optics on the other encoder.

If that checks out ok, check your +5V on the game board and make sure it is where it should be, adjusting as necessary. The part of the board that interprets the incoming encoder signals is known as the LETA chip, which is (thankfully) socketed. If it doesn't get enough voltage, it won't work properly. Also, if it received too much voltage at some point, it might be damaged..

If you have a spare LETA chip, you may want to try swapping it in place of the one on your board (AFTER checking for appropriate voltage levels!), and see if that fixes your problem.

I hope this helps...

 

[Ghostkiller]

Any chance that you have a flaky encoder board? If the IR emitters are wearing out, or if the optics have been chewed up, you could experience intermittent operation that way. If you have a logic probe, I would recommend hooking it up to the pins on the encoder board, and turn the joystick. You should lots of logic activity on the 72 hole disk encoder and isolated blips when the centering notches enter the optics on the other encoder.

If that checks out ok, check your +5V on the game board and make sure it is where it should be, adjusting as necessary. The part of the board that interprets the incoming encoder signals is known as the LETA chip, which is (thankfully) socketed. If it doesn't get enough voltage, it won't work properly. Also, if it received too much voltage at some point, it might be damaged..

If you have a spare LETA chip, you may want to try swapping it in place of the one on your board (AFTER checking for appropriate voltage levels!), and see if that fixes your problem.

I hope this helps...

not really sure yet, i havent really been able to tinker with it just trying to get an idea before the weekend comes so I can have a good idea of what needs to be done. I also gotta run about 20 outlets this weekend in the basement as well so loads of stuff to do and never enough time with work and a 2 year old.

 

[Ghostkiller]

Just got around to looking at this thing and voltage going to the board was @4.8v I rolled it up to 5v and it doesnt lose spot now and just had a 120k game. although i know ive done better back in the day. thanks alot! Now just gotta tear it down and see where the rough spot is coming from and im home free!