Recent content by snyper2099

Recapped, nice picture with little burn. No side art. Very solid T&F cabinet. Correct 49way joysticks. Has correct back door with a working key. Cincinnati pickup only; cash only. Project trades considered. $400

Yeah. Never resolved it. Life gets in the way sometimes and you have to take a break.

I checked the X/Y board schematics carefuly and it seems the originating voltage is actually +21VDC. So should I unplug the H.V. P900 connector and test for +21VDC here before I assume it's an issue with the X/Y board? Not sure if it's safe to power up the monitor without the P900 H.V...

Is there a price?

I removed the Yoke connector and tested @ P900 and got -9.1VDC @ pin 3 and +7.8VDC @ pin 4. So, no significant change with that test. I suppose I could have an issue on the X/Y board in the power supply section, not providing the poper +9.1 volts?

Ok, tomorrow I will unplug the yoke and see if I have the correct voltages.

I have an analog meter and will test the circuit with that if you think it will help. --->OK---I tested the circuit with my analog meter an got 3.7VAC. Others experienced the exact same result as my test on that circuit and did have an image on screen. So that makes sense if they were using a...

I had time to test the P900 connector actually using the correct information! These were taken with the video input signals disconnected. ALL OTHER CONNECTORS WERE PRESENT. I know some of these values are off the mark... Hopefully this can help figure out the problem: P900 connector: pin10=...

Thanks for the reminder. I am fully aware of the factory G08 mods and revisions, Especially the 003 version. Luckily I have two identical G08s and both of them have the same mods and one is fully working. So, it’s very obvious that those mods were all factory done to improve reliability. I...

That still leaves some confusion but gets me on the right track. I figured out the pins for X and Y. Hopefully I can test these now. Thanks!

Thanks for those tips. I am beginning to realize very quickly why people just hate these things. I double checked and there IS WHINING NOISE coming form the cage area when no video input is connected... So, I was like "I will take some readings from the manual to confirm voltages @ P900 near...

When I said input protection board, I was speaking of the clamp board. Bypassing it got the same result. I tested THAT board in my Tac Scan and the clamp board is good. I checked the paddle boards for cold solder and all components are secure and good. I tested all the components in circuit...

I've only used that 6100 adapter in a pinch for testing purposes. After you've owned and repaired so many games there are certain homemade tools that you just can't do without! I've used it quite a few times to test Sega games when all I had on hand was a 6100. I've not worried about the spot...

The game had similar issues plus it also had sporadic vertical collapse. It was hard to tell what all it was doing but the picture is somewhat stable now with the described issues and pics above. (I re-flowed solder on quite a few sketchy connectors.) This simple mod allows you to use a 6100...

I'm not trying to pay someone to repair it. Plus, I have no idea if the monitor boards are causing this problem. I was hoping someone has seen similar and could help save some time. I am well aware of the risks of swapping vector boards. I've repaired over 100 Atari color vector monitors...