Super Pac Man Cocktail Restoration

bszarek001

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Hi everyone,

Yes I'm a newbie, but I've learned quite a bit in the two weeks as I've undertaken the restoration of this Super Pac Man Cocktail table I purchased. Sorry for the long read, but hoping one of the experts here can assist. It's my first arcade cab and want to continue buying and learning.

Initially the unit worked, for a few days, but then I started getting a ROM 1 error. I had a few molex adapters that were charred and broken, so I replaced those. I thought the error could have been the PCB board, since the manual suggests the ROM 1 chip is bad due to this error. I purchased a new one with a HSS mod from Slava here on the boards. That would work for a few minutes, but then it would crap out on me and would either freeze, give me scrambled display or reset. After speaking with him, he suggested I may not have enough power from the PS, so I tested the PCB, and sure enough I wasn't getting enough juice.

So I bought a new switching PS from arcadeshop.com with an adapter for Super Pac Man. Instead of connecting the power to the monitor cables, which I didn't trust, I pulled power from the blue/white (hot) and brown/white (neutral) wires near the interconnect switch, soldered and taped nicely. The PS was getting plenty of power (119VAC) but still nothing was happening. Turns out I had the adapter upside down on the new switching power supply. I've tested the output to the PCB and it's getting 5V (and more if i turn up the dial). So now with a new PCB, new switching PS providing sufficient power to the PCB, it is playing the game (audio now works) and the cabinet lights finally came back on. However, I still cannot get the CRT to display the game. I have checked the AC power at the CRT and it's getting 120VAC and I've sprayed some contact cleaner on all the adapters to the CRT board i could find, but still nothing. I can hear it crackling when I turn the cabinet on, but no video.

I began digging some more trying to find any connection that may be loose. The black wire at pin 1 of J1 (11 position) of the video board appeared to have been sheared pretty badly, so I tightened it up and soldered it for strength and wrapped it up nicely. According to the pinout, that is for "shield", which I'm not entirely sure what it means.

In the meanwhile, I have replaced all of the t-molding, all of the glass clips and have done some repair on the woodgrain and is beginning to look nice. I also want to change out the underlay (as it's warped probably from years of beer lying on it), but want to wait until I'm 100% up and running before I do that. Here are some pictures of the unit as of right now. Does anyone have any recommendations as to what I can look at to get this CRT fired up?

(And yes, I know the PS isn't mounted - waiting on that as well).

Thanks in advance for your help!
-B
 

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The crackle you hear is the high voltage circuit firing up, but you aren't getting any image on the screen? Time for a rebuild of that 4900 monitor. Get a PM out to security0001 for a rebuild kit for that monitor.

While you're at it, you can browse my rebuild thread if you like. I took a Super Pac cocktail through a ground-up restoration last winter. I kept the original power supply pcb though.

https://forums.arcade-museum.com/showthread.php?t=397819
 
The weird thing is that during the entire process of me restoring this thing, there has been a glow at the back of the monitor, so it just wasn't receiving the video feed. Just checked a minute ago and no glow. Is it possible there is an issue with the CRT board?

Also, I did check out your thread a few days ago (before i could post). Almost all of the images were removed from your image server, unfortunately.

Hope it's still treating you well!
 
The weird thing is that during the entire process of me restoring this thing, there has been a glow at the back of the monitor, so it just wasn't receiving the video feed. Just checked a minute ago and no glow. Is it possible there is an issue with the CRT board?

Also, I did check out your thread a few days ago (before i could post). Almost all of the images were removed from your image server, unfortunately.

Hope it's still treating you well!

Yeah, fucking Photobucket and their hostage situation. Someday I'll fix my hosted photos.
 
With a little help from a friend, I did notice a fuse on the monitor board. Problem is it's covered in orange plastic so I can't see the damn filament. Plus, of course, it's soldered on. Ugh.
 
Aaaand the fuse seems fine...I really don't want to pull the board out but I may have to. I'll reach out to security shortly. Thanks for the help
 
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