Recent content by annaks13

Boards for sale Hey there, I'm trying to collect some decent fighting games and saw your post with stuff for sale. I'd like to buy some of it. Do you still have MvC2, Third Strike, Mark of the Wolves, and Guilty Gear XX? If so, please let me know. I'd like to make you an offer on multiple items.

That's good advice, thanks. Even though I've been doing this sort of thing for a while, I don't have the steadiest hands in the world, so I went back and undid most of the caps. Even though the board probably needs the kit, it functioned without it. I think the original problem with the blinking...

I have a stockpile of 2n3904's and 2n3906's that would make Fairchild Semiconductor jealous. I'm going to replace all of those transistors for the heck of it, but I'll also replace D504-D506. Is D504 just a standard red LED? --------- EDIT: Wow, that's...strange. I found D502, 503, 504, and...

Okay, I went through I metered all of the transistors (mostly checking Q606/706 and Q607/707) on the board, and I found something strange... When I meter Q503, I get a closed circuit off of the collector and emitter from the base. When I reverse the polarity and try to test it the other way...

Hey there! Yep, when I replaced them, I also made sure to check the casings for continuity with the chassis of the monitor. Interestingly enough, continuity IS THERE when the harness is connected to the board. Without it though, there is no continuity. So if there is a short to ground...

Aaaand...back to square one. Only this time, F700 is blowing out. The only thing I am changing is the chassis transistors. If I swap Q607 out for another, F700 fries. If I leave the two transistor connectors off of the deflection board and power up, no fuses are popping. The only change is, yes...

Hey everyone, Yet another update. I replaced Q606 and 607. Now the spot killer is on, but there has been a change. Before, when I would turn the brightness up the entire way, there was just this strange flickering blob on the screen. Now, there's a single, solitary white dot. I'm not sure if...

Ugh. This is annoying. So I metered everything at the large connector coming from the game board, and it all looks like it's in spec. It's definitely the deflection board, based on the fact that the game plays blind, worked (somewhat) before, and that is what last changed. Because the fuse...

PM sent. I am having a heck of a time with a deflection board in my V2000. I may be reading this wrong, but the B&W monitor guide says that these two monitors are plug compatible. I wonder if the board will work with my display in the Asteroids cabinet?

For the heck of it, I swapped the old bridge rectifier back into the board and checked it out. My multimeter tells me it's good. I'll do further checking after work tomorrow. I really hope I can get this working. The whole neighborhood could enjoy this one in the shop :)

I checked all of those as you suggested. They seem fine and all of them check out with a continuity meter. However, I tried turning it on...and F600 blew once again.

Just as a helpful reference, I've attached pictures of the top and bottom of the board. Thanks for any advice you can give me!

Hey there! I got some thick wire and went across them. I also reflowed all of the headers and doublechecked all of the cables. I replaced F600, and while it hasn't blown again, I am still getting the spot killer and the shadow on the screen. I started looking at the bottlecap transistors. I put...

Okie dokey, so here's an update. I checked the board and all of the connections seem good. The harness is in good shape. However, upon closer inspection, F600 has blown. I'm going to see if I can run down why after I get a new pack of fuses.

Hi everyone, New to the forums here, so I figured I would say hello at first! I'm trying to open an arcade in the area, and I picked up a sweet Asteroids machine. When it was at the shop, it worked for the most part. It exhibited a strange issue...when the game played, the spot killer would...