Need help with Midway TouchMaster 4000 - Screen Issue

Bill Loguidice's picture

I received it today (I first blogged about it here). The shipping carton was beat up, but it appeared to be OK on the palette. I plugged it in and it worked fine for a few minutes, but then something inside popped and now the screen has a purple rolling hue and you can't see anything but the purple. The touch screen still responds to touch and it still makes noise. Any thoughts on what might have blown? I left it on a bit and it sounded like something else might have blown and it has a more reddish hue now. I turned it off.

I have some photos here of it with the purple hue:
http://www.flickr.com/photos/loguidice/3439318583/
http://www.flickr.com/photos/loguidice/3440130062/in/photostream/

IMG_1729

IMG_1730

Comments

Chris Kennedy
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Hey Bill

Nice score
and
d'oh!

Sounds like maybe you lost some caps inside. In fact, seems like it would be a good idea to do a capacitor replacement on that display. It's 11 years old and has had who knows how much use and abuse in addition to any jarring during shipping. I don't know anything about that specific display, though. You'd probably have to open it, locate the caps on the board manually, and replace them. Make sure you discharge that thing so it doesn't kill you!

It's good that the guns are firing on the display. Seems like a power issue.

I've only worked with about five arcade monitors. Maybe subarubrat on monroeworld has some thoughts?

- Chris

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Bill Loguidice
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Thanks, Chris. It's easy

Thanks, Chris. It's easy enough to open it up. It's meant to be opened. I'll try to do that tomorrow and put up additional photos. I honestly wouldn't know the first thing about replacing capacitors, so I hope it's relatively easy.

Vintage Games book!
Xbox 360: billlog | Wii: 1345 2773 2048 1586 | PS3: ArmchairArcade
Bill Loguidice, Managing Director | Armchair Arcade, Inc.

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Chris Kennedy
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Actually, first....

Hopefully you'll just need to make a few adjustments on some knobs (screen, bright, contrast, color, Vertical controls, horizontal controls, etc) & that will solve everything. You should have a few knobs available in there. Could be some of the adjustments are up too high after shipping. I have a bad habit of jumping to the worst conclusion rather than starting with the simple things.

You may still end up replacing capacitors (requires soldering skills). That's generally good for improving picture quality, anyway.

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Bill Loguidice
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Adjustments
CkRtech wrote:

Hopefully you'll just need to make a few adjustments on some knobs (screen, bright, contrast, color, Vertical controls, horizontal controls, etc) & that will solve everything. You should have a few knobs available in there. Could be some of the adjustments are up too high after shipping. I have a bad habit of jumping to the worst conclusion rather than starting with the simple things.

You may still end up replacing capacitors (requires soldering skills). That's generally good for improving picture quality, anyway.

I already had it open and those adjustments were available just like any arcade monitor. There were two pops, which caused the screen to go from normal to that. The adjustments don't do anything anymore. I'm going to file a claim with UPS (or at least try to) and also take some photos with the cover off. That should make things clearer.

I'll need someone to help me with the monitor repair though. I'll have to try and find someone who can do that.

Vintage Games book!
Xbox 360: billlog | Wii: 1345 2773 2048 1586 | PS3: ArmchairArcade
Bill Loguidice, Managing Director | Armchair Arcade, Inc.

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Mark Vergeer
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The crack may have just been from the case re-adjusting to temp

Work those dials and see if you can get a clear picture. But it does sound an awful lot like blown capacitators.

Replacing the capacitators on any old arcade display (CRT device) will bring it back to life, give it a better picture as capacitators tend to 'wear out'.

Xbox 360: Lactobacillus P | Wii: 8151 3435 8469 3138
Armchair arcade Editor | Pixellator | www.markvergeer.nl

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Chris Kennedy
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Monitor

Good luck with this one. Wish I were there to take a look. It's been a little while, but it is a fun thing - restoring a monitor (provided the picture tube guns and flyback are okay).

P.S. Thanks for the bookmark! It's a nice addition to the book.

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Bill Loguidice
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Update
CkRtech wrote:

Good luck with this one. Wish I were there to take a look. It's been a little while, but it is a fun thing - restoring a monitor (provided the picture tube guns and flyback are okay).

P.S. Thanks for the bookmark! It's a nice addition to the book.

I filed a claim with UPS for the full amount, plus the seller has said he'd be able to send me another one, so he has it on reserve for me. Once the UPS thing processes, if it's still in my possession, I'll fix it, if not, then either UPS will have it or the seller back.

Glad you like the bookmark! I hope everyone gets one who wants one.

Vintage Games book!
Xbox 360: billlog | Wii: 1345 2773 2048 1586 | PS3: ArmchairArcade
Bill Loguidice, Managing Director | Armchair Arcade, Inc.

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crcasey
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Joined: 11/17/2006
Good reminder

Bill I am sorry you have had problems with your 'new' unit, but your problem reminded me of something that should be important to all collectors.

Any device you have that has a CRT display should be brought out and powered up at least once a year, twice a year if it is important to you and older than say 20 years or so.

This little cap popping episode reminded me to get out my backup Vectrex. When I powered it on it was almost 5 seconds before all the Caps in the high voltage section came back up and started working. I had clearly waited to long to bring this out and cycle it.

I also keep a original VT100 with video overlay input as well as a original ADM3A terminal, both that have HV caps for the CRT. They get fired up at least once a year whether I use them or not just to keep the power supplies in shape.

So plan on a maintenance day once in a while and get those PET's, TRS80's and what not out and let them 'warm up' for a hour or so to keep the electrons in shape :)

-Cecil

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Matt Barton
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Cycling
crcasey wrote:

Any device you have that has a CRT display should be brought out and powered up at least once a year, twice a year if it is important to you and older than say 20 years or so.

Wow, good to know, Cecil! I don't think I have any CRT devices around here I care anything about, but I know now to cycle them if I ever acquire any. Thanks!

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Bill Loguidice
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Exercising old equipment
Matt Barton wrote:
crcasey wrote:

Any device you have that has a CRT display should be brought out and powered up at least once a year, twice a year if it is important to you and older than say 20 years or so.

Wow, good to know, Cecil! I don't think I have any CRT devices around here I care anything about, but I know now to cycle them if I ever acquire any. Thanks!

Yes, that's definitely a good tip. I certainly don't do that enough, which is one of the drawbacks of having a large collection. I've had a few CRT-based systems die because of that.

UPS apparently stopped by today, unannounced to take the arcade machine back (presumably, they told me nothing after I filed the claim). No one was home, so I guess they'll come for it tomorrow. *sigh* Nothing is ever easy.

Vintage Games book!
Xbox 360: billlog | Wii: 1345 2773 2048 1586 | PS3: ArmchairArcade
Bill Loguidice, Managing Director | Armchair Arcade, Inc.

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