Museum of the Game® & International Arcade Museum® Forums
Alright, hopefully this is an easy one. I've not seen any consistent ceiling stated for it, but, is there a maximum capacitance value for the width cap at C38 on a K7000? I've never had to finagle with that cap quite so much as I'm having to now. The image on the monitor I'm working on looks great, it's just too dang wide and the width coil is, no surprise, stuck. I know they don't give you a ton of wiggle room, so I'm ignoring it.
Mine had a .33uF capacitor from the factory; I bumped it up to a .47uF with no real change. Then I added a .1uF in parallel and it got a little better. I swapped the .1 for a .22uF and, again, it got a little better than before, but was still too wide. In the end - now - I have two .47uF caps in parallel and the image fits perfectly. I'm a little concerned, though: is that too high a capacitance for that part of the circuit? It doesn't seem to be complaining at the moment, but I'd rather this chassis not spontaneously combust due to overcorrection of image width.
Mine had a .33uF capacitor from the factory; I bumped it up to a .47uF with no real change. Then I added a .1uF in parallel and it got a little better. I swapped the .1 for a .22uF and, again, it got a little better than before, but was still too wide. In the end - now - I have two .47uF caps in parallel and the image fits perfectly. I'm a little concerned, though: is that too high a capacitance for that part of the circuit? It doesn't seem to be complaining at the moment, but I'd rather this chassis not spontaneously combust due to overcorrection of image width.