My Ms Pacman Project

[vintagegamer]

I love watching Ms Pac's come back to life..  Mine fought like Hell to stay dead and I beat her anyway..

http://www.btdt.hypermart.net/mspac.htm

Women.   

[JeepMonkey]

8way - What are purity rings and how are they adjusted?

vintagegamer - nice work.  Looks much better.

Peale - Here are a few pics I took last night.  What causes colors to be inverted, and how do you "reverse" them?


According to this, it came with a Wells Gardner 19K4906 monitor.  I guess I need to get this verified.


This says RCA model 19VLTV22.  Google search says that this is the model number of the tube.


Here is an overview pic of the monitor.

[vintagegamer]

vintagegamer - nice work.  Looks much better.

Thanks!  I've also found the paints I need from Home Depot to do the final resto of the front graphic..  Pics coming soon-

VINTAGEGAMER

[SirPeale]

You've got a K4900.  I see the 'shadow' - your convergence is off.  Is it like that all over the screen, or is it localized?

If it's all over, one of the purity rings on the neck of the monitor must have somehow been moved.  Sometimes they mark them with a line to indicate what the factory setting it.  If you find it and the lines don't match up, it's a fair bet you can rotate it around to fix it.

If it's not marked, it gets more difficult.

[Level42]

Yep, definitly convergence problems. Good luck on fixing that !

My Galaxian had far less problems than your monitor. I fiddled with the controls on the neckboard, but didn't help much. Remember that these monitors are ancient now. These monitors have LOTS and LOTS of controls for convergence etc. Much more then modern CRT TVs/Monitors.

Unless you're an expert it will be VERY hard to get it working.

I decided to buy a relatively young TV-set with the correct tube size and used that as a monitor via SCART, but I guess that's not an option for you since you're in the US. I think this very nice cab deserves a new monitor...

[shardian]

Judging from the pic, it appears that the ultra high-tech factory convergence ring lock is missing (AKA hot glue  )

I have the same monitor in my top gunner. There is a manual HERE (Right click and save as for faster download)
Inside are directions on how to fix convergence and other problems associated with the purity rings.

Also note that the flyback for these monitors is no longer sold by anyone.

[JeepMonkey]

Thanks for the info Peale, Level42, and shardian.  I will need to research this a little bit, then see what I can do.

[JeepMonkey]

Mutterings and musings...

I have noticed that as I clean a certain part, the parts around it look even worse.  To clean or replace one part really effects all of the parts around it.

For example, I got the coin slots looking nice, but the bolts can not be cleaned up enough to look nice against the coin slots.

Another example is trying to clean up the control panel.  The control panel overlay won't clean up well enough to satisfy me.  So I am considering getting a new CPO.  The bolts are beyond cleaning up so they must be replaced.  Once this is done, will the buttons look even worse and need replacing?

It makes me think of the saying "polish a turd".  You can polish part of a turd, but then the rest of the turd looks even worse.  Before you realize it, you are polishing the entire turd.

[Kaytrim]

Tis the nature of any restoration project no matter how small or large.

[SirPeale]

How are you cleaning the bolts?

[shardian]

For example, I got the coin slots looking nice, but the bolts can not be cleaned up enough to look nice against the coin slots.

Another example is trying to clean up the control panel.  The control panel overlay won't clean up well enough to satisfy me.  So I am considering getting a new CPO.  The bolts are beyond cleaning up so they must be replaced.  Once this is done, will the buttons look even worse and need replacing?

It makes me think of the saying "polish a turd".  You can polish part of a turd, but then the rest of the turd looks even worse.  Before you realize it, you are polishing the entire turd.

Bolts: three words - chrome spray paint (black for the control panel...or just buy new ones from a byoac vendor)

CPO: I have had awesome success with goof off #2 spray on a laminated CPO.

Buttons: A Dishwasher works magic in most cases. In this case, the Goof Off #2 would also work well.

[JeepMonkey]

I tried to clean the bolts with steel wool to remove the rust.  Turns out it isn't so much rust as the chrome has worn off.  I tried to find #8x1/2" carriage bolts, but Westlakes, Home Depot, and Lowes do not carry them.  I will keep looking, but I may end up painting them.

[JeepMonkey]

06/05/07
Work Day 9

Today I started cleaning the CPO.  At first I tried using a paper towel and water, but this didn't work.

Next I tried using warm soapy water with a toothbrush, and this worked great!


This is a pic before cleaning.


This is after the first pass.  A small circle to the left of player two button.


Not the greatest pic, but it shows half cleaned.

[WunderCade]

Perhaps this has been asked already, but are you gonna stick with that cheesy Control Panel overlay or are you going to invest in an original?

[SirPeale]

I tried to clean the bolts with steel wool to remove the rust.  Turns out it isn't so much rust as the chrome has worn off.  I tried to find #8x1/2" carriage bolts, but Westlakes, Home Depot, and Lowes do not carry them.  I will keep looking, but I may end up painting them.

Invest in a polishing kit.  In just a few minutes you can have mirror shined bolts again.