I messed something up on my cap kit. Lucked into a fix w/o disaster.

[Jeff AMN]

EDIT: I fixed the problem. Check out how below. For those that are going to work on a Sanyo EZ20...you might want to double check EVERYTHING before soldering in new caps.

Ok, so it was my first try at a cap kit, and everything went great except for one thing: I have some distortion in my picture. The colors came back great, but as you can see below, I have an issue on the side of the screen. The monitor is your typical Sanyo EZ20 that's found in all original Donkey Kong machines.

[SirPeale]

Do you have sound?  Better check.

Have you tried adjusting that tear on your monitor out with the controls?

[Jeff AMN]

Do you have sound?  Better check.

Have you tried adjusting that tear on your monitor out with the controls?

Yeah, I tried all the controls to get rid of the tearing, but it has no effect.

I plugged that cable into the PCB...sound is fine.

EDIT: Could I have maybe put in a capacitor with the positive/negative reversed? There was one in particular where it was REALLY hard to tell which way it should go...but I think I got it right in the end.

[SirPeale]

*Usually* when do you do that they blow.  I mean violently.

Double check your work.

http://www.gamesforum.ca/archive/index.php/t-35245.html

[grantspain]

if you put an electrolitic in wrong then you would have what looks like loft insulation blasted all over the place-best to check if you have other chassis adjustment pots which you have not tried yet

[FrizzleFried]

Have you adjusted the two pots on the DK board itself?

[Jeff AMN]

I fixed it.

I had three...COUNT 'EM THREE caps reversed. It wasn't my fault, however. On the bottom side of the board, they were labled in reverse. When I double checked, I could see that they were saying just the opposite on the top side of the board. It was a small grouping of three capacitors close together.

The image is GORGEOUS and it looks brand new now.

Thanks everybody for chipping in your ideas and suggestions. It's such a relief to have gotten it all worked out as a buddy of mine is coming into town tomorrow and he's been excited to see it.

[grantspain]

did you get the loft insulation effect,or did the caps survive?

[SirPeale]

Sometimes you can get away with putting caps in backwards.  Sometimes.

[Jeff AMN]

All the caps survived and nothing ever indicated that they were in the wrong way except for the picture. Dumb luck? Yep. Maybe I should enter a few state lotteries before the day ends.

[Ken Layton]

This is why it's always wise to look at the old capacitor's polarity stripe before removing the cap. That way you'll always put the new one in properly regardless of chassis mis-markings.

[Jeff AMN]

This is why it's always wise to look at the old capacitor's polarity stripe before removing the cap. That way you'll always put the new one in properly regardless of chassis mis-markings.

Yeah, I should have known. However, the three caps that were backwards were pretty small and they weren't marked in a way that you could tell on the original caps. Bob Roberts' caps were marked nicely, but the originals...not so much.

[ChadTower]

*Usually* when do you do that they blow.  I mean violently.

More than once I've put caps in backwards and they did not blow at all.  They died, but didn't pop or even swell.

[clanggedin]

Sanyo monitors are the hardest to cap. Every other monitor you work on now will be a piece of cake.