Recent content by MKL

You see that magnet? There's one on the bottom too. That's where you need to place and eventually glue your magnet.

On CRTs. These are the magnets you find on top and bottom of yokes. They can be cut so when I need it I just slice them.

That system originally had the daughterboard as that insulator shows. Someone removed it and perhaps didn't do it right.

That kind of distortion (called seagull) is due to an imperfect correction of the south pincushion by the relative magnet located on the bottom of the deflection yoke (101 in the pic below). At the factory this distortion was deemed tolerable or else they would have tried to modify the magnetic...

Maybe it's D530, not sure.

It's the Zenith version of the K7000, also known as the K7000A. It's almost identical to the Wells Gardner version except for a few changes in the horizontal deflection, the flyback in particular. The screen pictures we're supposed to compare to each other aren't very helpful but the other...

Composite video is lost and both pin 3 and 7 on the DIN port are composite sync. If you want to have both csync and cvideo you need to add a 470u cap and 75 ohm resistor for csync.

Must be the PIN DAMPER diodes here: It's the modulation diode circuit on the east west correction signal coming from the PIN OUT transistor Q503 (not shown above) before being injected in the horizontal yoke. Same problem on a different monitor...

A few years ago, after buying a system from me, the customer (who considered himself an audiophile) complained that he could hear a buzzing noise coming from his TV speakers as well as from the headphone jack. He also mentioned that he had a low serial system that didn't have that issue at all...

As is known MVS multi-slot boards aren't fully Jamma compliant. The most notable differences are: - stereo on the edge connector (MVS) vs mono (Jamma) - test pin at Jamma M (MVS) vs test pin at Jamma 15 (Jamma) Then we have the select button (jamma 26/d) but this isn't as big a difference...

http://www.neo-geo.com/forums/showthread.php?t=121404 jameco stopped stocking those power supplies like two years ago, the clown mod that was going to arrange that group purchase has disappeared since about the same time and that thing is still stickied in the tech forum.

Custom white plastic dust and shaft covers for Seimitsu LS-32 stick. Dust cover is 1.5mm thick and has a diameter of 39mm (stock cover is 38mm). Edge is slightly slanted. Diameter of shaft cover is 12mm. Custom shaft cover doesn't fit stock dust cover (of course). 5 available. 6 euros...

Sanwa makes a Jamma RGB to NTSC converter to help recording videos from a cab. It's called VC-J and also has an audio attenuation circuit with volume adjustment that works fine even with those boards (Cave SH-3, etc.) that have issues with the other attenuation circuit the people here know and...

The kit is complete, 100% original and working. €70 shipped worldwide.

Upon request here's a detailed survey of a Naomi consolization project I did some time ago. It shows how it is possible to rig up a Naomi home setup that isn't an unsightly mess of parts, bits and wires all over the place. Despite being often considered problematic to deal with, Naomi is...