Re: Battlezone might live, but it needs *your* help!

Thanks.. I know that the sizing pot does adjust the width quite a bit on my board. When its adjusted open, the image is way, way, too big.. I should try shorting it to see if that would help. Otherwise, I'm thinking the op amp is my best starting point.. Those damn things are always the first to fail in the xy output sections.

Thanks for the ebay info too, but fortunately, my control panel is really nice. The only problem with it were the bellows that had dried out and fell apart.

Jon

At 04:11 PM 6/19/2000 -0400, you wrote:
>I had the same problem while repairing a friend's BZ cabaret. The screen was about 1" too wide, causing the score to be partly invisible, among other problems. It turned out that the X and Y pots on the deflection board were worn out. Several people on the newsgroup contested the very existence of these pots, but lo and behold, they are were. They were basically open; they would hold an adjustment until you took the tool off of them. I didn't have anything similar to them sitting around, so I hacked in (gently) some 2.5K pots that are typically used as black-level pots on a WG4600 interface board. Presto...problem solved.
>
>We also used some of Tom's replacement centering grommets, and are pretty pleased with the feel. They're not too tight; just right.
>
>There's also several auctions on eBay right now with some parts you might want to check out. I saw an NOS pair of joystick handles in one, and a lot of NOS parts that looked like they included another set (though the picture was a little hard to see.)
>
>Richard
>http://people.atl.mediaone.net/someotherguy
>
>At 03:45 PM 6/19/00 -0400, you wrote:
>>So did I scare anyone? This list is pretty quiet right now, so I figured I'd throw my most recent problem your way..
>>
>>I have a Battlezone caberet that I mostly brought back to life yesterday. It seems that the x axis is too large for the screen and won't resize down enough to fit. I realize that there are two different resistor sets for the 13" versus the 19" monitors, but the ones for the 13" are installed. I suppose the problem could be in the logic board (tl082 maybe?), but others have told me they suspect the deflection board.. Anyone want to make an educated guess?
>>
>>I also have a short on my left controller, but I should be able to track that down. I guess its probably time to order the bellows from Tom. Fwiw, I've heard that if you drill holes in Tom's bellows, you can bring the tension down to the original levels.
>>
>>Jon
>>
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Received on Mon Jun 19 16:46:31 2000