Recent content by fredster

Doesn't someone here sell these boards? Please PM me if they have a board I can use please.

I doubt if it was the iso transformer, it was dead. The caps can go bad in that circuit (looks like C810 & C807 went bad). Bob doesn't have a 200ohm 15 watt resistor, only 10 watts. That's connected to Q801, the voltage regulator. If the resistor is burnt I wouldn't imagine that's...

So any one of the boards would have to modified to play asteroids deluxe? The one I have has less parts than the one in the single pic.

Here's a pic of the tube I have now and most of the yoke. The tube P/N is GA63ADG25X. What else do you need off of it? I can't tell what was originally in it. It's obvious that somebody has been working on this for some time. It's in a conversion cab that has seen better days.

Advice taken! I will follow the flow chart and sticky. I'll check all that when I decide which one to fix. I have not gotten that far. But what should I do about these mods? Just get it to run or put these in? Chassis 3 work in a 25"? I have the proper parts to fix them both. EDIT: I...

My asteroids cocktail is far and away the most beloved game I have. It's the only one my wife will let me keep in the house. It's getting a little flaky, and it's due for a rebuild. I brought it back from the dead years ago with just some swap out boards. So I'm going to rebuild the G05...

I took the pictures. The first chassis is the board I want to rebuild. It appears to have the mods removed, either on purpose, or in the cap kit change at some point. The second chassis is a parts board I used to fix another chassis. It has the mods in it. The third one is another good...

It's a Ceramic resistor, and it's hot. That's normal. You can ohm across it and see if it matches the rating written on the side of it (or the print) and it's okay within 10-15%. The next logical step is to get the cap kit and put it in and see how it acts then. If you want to shotgun it, go...

I've got a bunch of "dead" track balls. Anybody have an idea what the optical sensor part number is and where to order them? For like a Happs track ball? Or, if you simply replaced a 'similar' optical sensor on a different make of track ball on both X and Y would it work again?

If it's showing a picture, it's working. That jumbled picture is probably what that board is producing, or you have your horizontal / vertical hold messed up. Putting in the cap kit is your next logical step to healing the monitor. That should fix a lot of it. You might want to download or...

It's a nice piece of work for sure. Next time you make those harnesses with the diodes, see if you can find some heat shrink tubing from an electronics supplier. Just slide it on and take a lighter and melt it in place. It's a lot quicker and more secure than tape. You can get larger...

Do a search about degaussing on the forum and you will see it's the magnetic field of the earth. I notice it more in cocktail tables for some reason. Rotate the game 90° and it goes away. The built in degaussing coil will do the job after a couple of days. I think ops used those hand coils so...

The one in #3 has the flyback missing. It's a parts board. I want to fix pic #2, but where it's circled, it's obvious that all of those features were at one time installed, but aren't there now. It looks like whomever put the new caps in took them all out. Every single one of them has the...

It's not unusual at all to have the funny things on the screen when you turn the game on. It takes some games a few seconds to "boot" and they have all kinda weird characters on until the game is on. How long was it on? Obviously enough time to get a picture, (that's a plus). It means that...

I agree with Tron guy. If the test mode shows it's where it has to be, it should work. The only input you can change by the menu is the trackball direction.