wg k5500 needs tube

[dieseldogpi]

I picked up a pretty beat up Neo Geo cabinet with a pretty beat up WG K5500 medium resolution.  There is a pretty sizable scratch on the front of the monitor.  I am going to have to re-cap the thing if I want to use it, would it be worth it to replace the tube?  Tried looking around, didn't find much, or am I better off finding a non-working monitor with a good tube and pairing them?  Can any 25" arcade monitor tube be used?  Some what new to the monitor thing. Have done cap-kits before, but nothing as extensive as a tube swap.  Any info or direction on this sort of thing would be greatly appreciated.  Thanks in advance.

[dieseldogpi]

would something like this work?  I don't know how to tell if one tube is compatible with another.  Thanks again.
http://cgi.ebay.com/25-inch-arcade-monitor-tube-55-00_W0QQitemZ200405010851QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2ea911c9a3

I've read mixed things on trying to gently polish the scratch out. 

Is this worth a shot?

[dieseldogpi]

Sorry to keep hitting my own post, but instead of creating a new topic, another quesiton.  Will the tube from a std resolution WG 25k7193 work on my K5500 med resolution?  Also, will I be able to use the med resolution one for mame, or will only the Std resolution monitors work with soft15khz?  thanks again.

[Kevin Mullins]

The tubes are the same..... the YOKES are not.
And are you certain you have a "5500" ?
I personally have never heard of that model.
And I always thought Neo-Geo was standard resolution.

You can use a medium res with MAME, just limited to a few resolutions from my understanding. (someone else will have to be more specific)

[dieseldogpi]

I'm not a 100% on the model.  It has the same board as the 4900, but it is a 25" size.  I emailed Wells Gardner to see if they had any further info on it, and he said that it was discontinued and replaced by the U5000.  I'm pretty sure it exists though, I think it is based on the specific 19" model 4915.  I figured it was med res based on this: http://www.wolfelectronics.ca/wgk4900.html
Now whether that is accurate or not I do not know.  I just picked up this whole mess last night.  Tonight I plan on pulling the monitor out and hopefully getting some better shots.  Thanks.

[dieseldogpi]

Here are some pics of the monitor removed.  I'm starting to think this thing is too old.

[2600]

Hopefully, it will say on the frame or somewhere if it is a 25k5501 or a 25k5515.  The 01 is Standard Resolution and the 15 is Medium.  The little board can be on both versions so I wouldn't just go by that.  Medium Resolution isn't a very good choice for MAME IMO.

Do you know if the monitor works or what game was in the cabinet?

[dieseldogpi]

I'll check later tonight if there is a number on the frame.  The monitor wasn't working 100%.  I haven't seen it, but supposedly it turns on fine, then fades to black with a little swirl of colors in the middle.  This was hooked up to a Neo Geo single slot.  I know someone else said that Neo Geo are Std res games.  Even if this is std res, is this worth it to put time in?  Seems pretty old.

[SirPeale]

That series is a pretty good monitor.  If you decide you want to get something else, please sell it.

[dieseldogpi]

if i did get something else i wouldn't just throw this one away.  But what makes this series so good?  I don't even know if it is identified correctly.  I'm finding about 3 or 4 different model numbers all over this thing.  Tonight I'm going to power it up and really see whats going on.

[Kevin Mullins]

What's on this label ?

[2600]

It's more likely to be a 5501 since that model is standard resolution and the game you picked up was standard resolution.  The downside of this model is that no one has a manual for it.

[dieseldogpi]

What's on this label ?

I know I looked at it, don't remember though.  I will look tonight.

It's more likely to be a 5501 since that model is standard resolution and the game you picked up was standard resolution.  The downside of this model is that no one has a manual for it.

I know, you would think Wells Gardner would have some sort of archives, but I contacted them and they did not.  From what I heard the chassis is the same as the K4900, so I would think I could use most of the info off of that manual.

[SirPeale]

It's nearly identical to the 4900.  Few changes for outputting to a larger tube, of course.

[2600]

Yeah, most of it is the same as the 4900 series.  And you can find the 5515 manual which is pretty similar.

But if I wanted to compare a 5501 to a 5515 then I'd be out of luck.

[dieseldogpi]

OK, I fired it up.  Here are some pics.
Safe to say I will need a cap kit.  Now the guy I got this from said after a while, the screen while just fade to black, does that mean it will need a flyback as well?  Can I still get one for this.  Also, didn't seem like the adjustments, vert. hold specifically, were doing anything, is it possible to replace the pots, can I even find these bad boys??  Which brings me to my next point, is it a K5500?  I went through the whole monitor found a bunch of numbers, most of which look like part numbers.  Looks like it had a manufacturing date of 12/10/86, according to one of the stickers with that number and a serial number (946408).  On that decal that Kevin circled was a caution sticker, and in tiny print the number 69X012-100.  Again seems like a part number because there are so many similar ones all over the place.  I know I'm pretty wordy, I just like talking about this crap.

Oh and one final question, do I need that fan thats in the second picture I originally posted.  Is that on all of these?  I just want to keep it as simple as possible.  Thanks again.

[dieseldogpi]

Pulled the board out.  A board number on the bottom reads DBQ 2061433-055.  I don't know if that will help confirm the monitor ID.  Also, what is the thing in the second picture?

[SirPeale]

That is a TO-3 style transistor.

[dieseldogpi]

Forgive my lack of knowledge, but that has something to do with displacement of heat?  Does it look like it should be replaced?  There is some corrosion on there.  Thanks.

[SirPeale]

It's just that particular style of transistor.  I'm sure the package type has a lot to do with heat dissipation.

Rusty doesn't mean not working.

Does the monitor work at all?

[dieseldogpi]

yes, I posted pics a couple of posts up.  It works pretty well actually.  Some of the adjustments don't seem to work though, does that mean the pot needs replacing?

[SirPeale]

Perhaps.  You can always test the pot.  Has this been capped?  If not it should be.

[dieseldogpi]

It looks like the caps were replaced at some point.  I was planning on doing a cap kit anyway this weekend then seeing what i came up with.  How do I check the pots and what am I looking for?  Thanks.