Yayyyyyyyyyyyyyyyyyyyyy! More smalltownguy threads! Awesome! Really loved your first post on this thread, it was very informative. Please keep it that way and post a lot of info for us noobies.
Ask and you shall receive, my friend...
First of all, I apologize for the long post, but there's lots to document here.
Okay, I'd have to say that our repair party was a great success! We managed to get quite a bit of troubleshooting done, and 3 of the 8 non working cabs are up and running fully, with another 2 cabs very close. Started the day at 12 noon, and I left at 10:40pm and the owner and Ryan (ballytablewiz on KLOV) were still working!
BIG thanks goes out to ballytablewiz for bringing FOUR rejuvenators to use. We ended up getting a TON of use out of them - very valuable tools indeed!
Chuck (the owner) and I started the day with moving cabs into the work space, and setting up our spare parts and work areas. Chuck wanted to address the NBA Maximum Hangtime cab first, so we went to work on it. The power switch on the cab was completely broken, and the wiring for it had been hacked together. I spent over an hour creating a new input power cord and re-crimping proper monitor AC inputs so I could use my monitor extension cable from Bob Roberts. Powered up the game and the PCB was working, but the tube was all blue - no red or green
No rejuvenators on site yet, so we had to move on to other troubleshooting. To make sure that the issue wasn't neckboard related, I pulled the neckboard off the Marvel vs Capcom (blue) which also had a Wells Gardner 25" chassis in it too. Tried the neckboard on the Maximum Hangtime chassis and got the same blue image, so it was definately a tube issue. We moved on.
Chuck and I moved on to the Marvel vs Capcom cab (blue) to see if we could get that chassis up and running. Fuse was blown on the chassis - replaced it and it blew immediately on power up, so we know that chassis need a complete rebuild - caps are all original too. We both had spare 25" chassis lying around, so the next hour or so was spent testing each chassis on the tube in that cab. Both worked OK.
My friend Dave (dlbagna) took on the biggest project of the day - a complete rebuild of the G07 inside Chuck's Surf Planet cab. The chassis was totally dead, so Dave replaced everything in Bob's Deluxe kit: caps, flyback, HOT, regulator, both fuses. We skipped the horizontal width coil since the one onboard was fully functional and the slug turned properly. When Dave re-installed the chassis, he noticed that there was a neck pin stuck in the neck board socket. One of the pins had broken free from the back of the neck -- bummer
It was right around this time that Ryan showed up (ballytablewiz) and he just happened to bring a 19" donor tube for our cause...sweet! We proceeded to immediately do a tube swap to remove the broken (and burned, as we later found) G07 tube from the Surf Planet cab. We swapped both the tube and the yoke, discarding the TV's yoke. After everything was done, we still couldn't get the new tube and repaired G07 chassis to fire, so I punted and dropped in my spare G07 we'd been using for testing. That pretty much took care of that. I'll keep working the the rebuilt G07 in my spare time and I'm sure we'll get her up and going. If not, I'll call Chris25810
After that, we moved on to rejuvenation....Ryan pretty much gave a clinic on how to use the B&K and sencore units for testing, restoring, and rejuvenating the guns in a tube. We were able to test/fix/repair three 25" tubes and 2 19" tubes. Chuck bought one immediately - this will be a great tool to have in the toolbox!
We turned our attention to the Soul Edge cab next. It had a 19" Wells Gardner 19k7000 series monitor in it. I tested the game on my spare 19K7951, and it worked perfectly on that monitor. So I dropped my working chassis into the cab on the tube inside, and got a picture that was all red with retrace lines all over. Then I power cycled the cab and got a good picture. Power cycling again brought the red back. Strange, since this chassis is working perfectly on my tube. We tested the tube with the Sencore, and it checked out OK. The issue is either with the game board (or wiring coming from it to the chassis) or with the tube, not sure which. This one is perplexing me - next step is going to be to pull the monitor and test it with another known working game to see if any issues follow the monitor. So this one is still in the diagnosis stage.
By this time, it was starting to get pretty late in the day, and we were running out of time. I was starting to get tired, and was making some mistakes. Two times I mistakenly powered on a chassis without connecting the anode cap - not a good idea.
Before we left, I took a quick look at the Marvel vs Capcom (red) cab with the Hantarex Polo. Testing the cab's power supply revealed that there was no power getting to the monitor. So this cab needs the power supply replaced before we can get much further. Chuck tells me that the monitor was arcing pretty good when he had it, and he believes the flyback has toasted. I inspected the flyback knobs and housing, and there was not just dust on it - there were scorch marks and soot, so I believe him when he tells me that it's toast. I also noticed that the anode cap was riding pretty high, and when I lifted the cup, I saw that only 1 of the anode lead's teeth was clipped in. My diagnosis is that the anode was arcing due to the fact that the anode wasn't clipped in properly, ultimately leading to the flyback's demise. First things first, this cab needs a new power supply, then we can worry about pulling the chassis and replacing the flyback.
That's as far as I could get in one day. There was lots of 'hands on' learning and teaching yesterday, so the progress was slow, but it was a very productive day. Ballytablewiz was able to get his 13" monitor recapped as well.
1. Surf Planet - fixed, (I dropped in my G07)
2. Rampage (dedicated) - 19K7xxx monitor, not addressed yet. Also needs sound board repair.
3. Killer Instict 2 (TMNT conversion) - 25K74xx monitor, needs cap kit. Not addressed yet.
4. Final Fight - (Taito conversion, probably was a Pirate Pete) - needs controls work - not addressed yet.
5. Sharpshooter - working
6. Soul Edge (dynamo cab) - working. Original monitor has intermittent issue that is still being troubleshooted.
7. Marvel vs Capcom (blue) - working - needs new monitor signal calbes created.
8. Marvel vs Capcom (red) - Hantarex Polo needs flyback replacement. Cab needs new power supply.
9. Primal Rage - currently a police trainer, needs to be 'deconverted' back to a dedicated PR - not addressed yet.
10. NBA Jam Maximum Hangtime - fully working.
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Topic: OMG What have I gotten myself into -- 10 MORE CABS! (Read 58588 times)
