Last Action Hero (Data East, 1993) came to me as a restoration project for a customer who had had the machine for some time but was moving it to a new location. He wanted it to be fully working so he could set it up in his factory. The machine was relatively functional, but had a few issues that required extensive repair. I have a soft spot for Data East machines, so I was keen to take this one on and see how a full restoration would make it pop like new again.
Initial condition report (click on sections below to view details)
Good condition overall.
Average condition overall.
Average condition overall.
Average condition overall.
The game was not in bad shape when I first had a look at it. It booted up, played a game, and most of the playfield mechanisms seemed to work without too much issue. The game had allegedly not been played for some years, so it was impressive that most of it was still working relatively well. The customer wanted the game to be cleaned and serviced completely so it was working 100%. Most of the issues were tackled in good time, but some of them were a lot more complex than they first appeared.
Last Action Hero, like a lot of Data East games from this period, has a pretty simple playfield with only a few major toys on it. There is one main ramp connected to a couple of wireforms, and a ball lock area on a separate plastic ramp. The crane sits on top of everything towards the top of the playfield. Disassembly is easy once you get the ramps and wireforms off. However, before you do that, you need to remove the crane. To remove the crane, unplug it from the underside of the playfield. There is a single connector used by the flashers and crane coil which snakes under the plastic beneath the crane and pops out near the crane motor. Once this is unplugged, you need to loosen the crane from the motor shaft. The crane is attached via a single grub screw, which you can loosen by inserting a hex key through the hole in the side of the main crane body. Once loose, the crane just lifts off the shaft. Note that you may need to loosen the plastic under the crane to wiggle the connector through. The rest of the game is fairly easy to disassemble and service.
Here are some shots of the machine's initial condition and some of its disassembly.
After disassembly, the game went through my standard restoration process to get it playing and looking like new. During the restoration process, I dealt with a number of issues, described below.
Tips & Troubleshooting (click on sections below to view details)
Lamp column not working
One of the first problems I noticed in my first test play of the game was that a number of lamps were not working. These included the R-I-P-P-E-R lamps on the apron, the start button, and the smart missile button lamp. I swapped a few bulbs around and confirmed that it wasn't just a series of bad bulbs. So, time to look in the manual for clues. The first thing that popped out was that all of the non-working lamps occupied the same column in the lamp matrix - column 8. The columns are the lamp drivers, while the rows are the returns. Given that we had an entire lamp drive not working, I was pretty confident it was a circuit board issue.
While looking in the manual I noticed that somebody had actually marked the lamps in column 8 and written down the column drive wire colours. It looked like somebody had noticed this problem a while ago, but never actually got around to fixing it. That's why I love reading through game manuals - you never know what kind of helpful scribbles you'll find!
So, now it was time to fix the issue after who knows how long it had been affecting the machine for. I took the MPU board out of the backbox and started testing all of the lamp transistors. Sure enough, Q64 gave suspect results, and this is the transistor that controls column drive 8, where all of the non-working lamps were located. I whacked in a new TIP42c (Jaycar), and the lamps were back to working again.
Playfield magnets not working
If you've read my other restoration posts, you'll know that some pinball machines have parts whose repairs turn into "sagas". Doctor Who (Bally, 1992) had the Time Expander mini playfield. Judge Dredd (Bally, 1993) had the Deadworld. And Last Action Hero had... the magnet driver board!
The magnet driver board is a simple board mounted underneath the playfield which holds an integrated circuit, resistors, three transistors and associated diodes. Power from the CPU board is sent to the magnet driver board, which then turns each of the three playfield magnets on and off during multiball modes. Each of the magnets is separately fused. It's a pretty simple circuit, or so I thought.
Initially, only one of the game magnets was working and once I lifted the playfield, it was pretty clear to me why. There was only one fuse in the fuse holder! "This will be an easy fix!" I thought. Funnily enough, things never go to plan whenever I say that.
With new 3A fuses in the fuse holders, I turned the game on, and started multiball. Multiball started without issue, and I even saw a magnet flick a ball around initially, but then the magnets just stopped working. After playing for another minute, I was down to the last ball, and shot it into the right scoop. However, it didn't come back out. The game awarded points for hitting the scoop, but the coil wasn't firing the ball back onto the playfield. Then I discovered that multiple other coils weren't working, either. I took a look in the backbox and found that fuse F5 on the playfield power board had been destroyed. As there had not been as issue with this fuse until I replaced the magnet fuses under the playfield, I suspected that the magnets were to blame. I replaced the F5 fuse, turned on the game, and saw it blow again straight away.
I started to troubleshoot this piece by piece. I removed the magnet fuses under the playfield except for one. I left the single fuse that was present when I first lifted the playfield. With that fuse installed, one magnet worked, and F5 didn't blow. Progress! I installed a second magnet fuse, and this time, I also held a ball on the playfield above the magnet controlled by that fuse. When the game turned on, the magnet locked on, grabbing the ball for a few seconds. The fuse under the playfield associated with that magnet blew, and the magnet turned off again. I repeated this process with the third magnet, and it also locked on before blowing its fuse. So, it seemed that two of the playfield magnets were locking on as soon as they received power.
Now I turned my attention to the magnet driver board (part no. 520-5068-00). This board has multiple revisions, and was used in a small number of games. Last Action Hero was the first game to use it, followed by Guns N' Roses (Data East, 1994). A revised board (part no. 520-5068-01) was later used by Stern in a few games such as Indiana Jones (Stern, 2008) and Family Guy (Stern, 2007) to drive extra coils and lamps. If you search on Pinside, you'll find countless threads regarding issues with the infamous magnet board. This board was under-engineered, and it is common for it to blow fuses, destroy transistors, or simply not work at all. Part of this is due to problematic components on the board, and part of it is because the board is mounted on the playfield instead of the backbox, which makes the data signals sent to the board susceptible to interference. The universal fix in most of these cases simply appeared to be replacing most of the components on the magnet board with beefier parts. Clay's guide has a small section devoted to this board, and his advice is to replace the transistors with logic level MOSFETs (IRL540s recommended), as well as the 74HC273 integrated circuit.
I installed MOSFETs on the board (eBay), replaced the diodes associated with each FET, and also replaced the integrated circuit with a 74LS273 (Jaycar) in a socket. One of the solder joints for the output connector was also cracked, so I reflowed it, and reflowed the rest just in case. Pretty chuffed with myself, I reinstalled the board into the game and replaced the magnet fuses. I started the game up, entered a multiball, and boom! Two of the magnets locked on again and blew their fuses. I took the magnet board back out, and sure enough, I found that two of the transistors had shorted internally, grounding the magnet coils permanently. Hmm. I did some further research. Clay's guide indicated that the magnets may lock on due to noise interfering with the clock signal that controls the integrated circuit on the magnet board. Adding a 0.22 uF capacitor across pin 10 and 11 should filter out this noise, so I added a capacitor. I also replaced the shorted transistors, checked my other solder work, and confirmed everything was OK.
Again, I replaced the magnet fuses, installed the freshly repaired magnet board, and started a game. Once again, the magnets locked on, and two of the MOSFETs shorted out again. I was getting frustrated by this point. I had replaced all of the problem components with brand new ones, but still had the same issue. Moreover, it only affected two of the three magnets. Each of the magnets was in good condition and all returned the same resistance reading. At this point I realised why there as only a single fuse in the fuse block for the magnets when I first opened the game. This fused the single magnet that did work properly. A previous owner had obviously figured out that two of the magnets were causing issues, and just removed their associated fuses instead of trying to fix the problem.
I spent hours trying to find the source of the problem. I replaced the shorted transistors countless times. I reflowed solder. I even replaced the new integrated circuit with another new integrated circuit, thinking I got a dodgy one. No dice!
I started looking at the CPU, considering that it may be sending incorrect signals to the magnet board. Interestingly, the magnet board is driven by the display strobe 7-segment 6821 PIA located at B11, rather than the PIA at F4. The PIA at 11B sends signals to the magnet board via connector CN3. To test the PIA, I erased the game ROM and replaced it with an image of Leon's test ROM. Leon's ROM tests the output of each PIA which can be seen as a voltage oscillating from 0-5 volts on each output pin. One exception is pin 9 at PIA 11B, which is tied to ground. All of the pins tested good, which proved that the CPU board was OK.
Back at square one! Thankfully, there was a final solution. I opted to replace the magnet board with a brand new one made by Homepin (Johns Arcade). This board is an updated and improved version of the original, with upgraded components and improved circuit design. While I normally hate replacing any circuit board, and prefer fixing them instead, there was nothing left for me to replace on the original board.
The Homepin board comes with an extra capacitor which can be installed at C2. This capacitor is equivalent to the noise filtering capacitor that I installed across pins 10 and 11 of the integrated circuit on the original board. The Homepin board also has a couple of extra capacitors and diodes that are not present on the original board. Other than that, it is a direct plug-and-play replacement.
So, did it work? Yes. Yes it did. Once I installed the board and replaced the magnet fuses, everything worked perfectly. This is one of those rare occasions where I was never able to figure out the source of a problem, and even though the issue was fixed in the end, it still haunts me to this day! But for now, the magnet board saga can be put to rest!
Playfield scoop hole repair and protection
Last Action Hero has a lot of scoops. Three, to be exact. Almost every scoop on every pinball playfield has some amount of wear around it. The nature of the square scoop holes means that balls will hit them, eventually destroying the wood and enlarging the hole. This machine was no different, and the scoop holes were moderately worn. Thankfully, this is repairable, and is a necessary repair on Last Action Hero because the left scoop gets hit very frequently.
The first step in this repair was to rebuild the timber around the holes. For this I use Selley's Knead It, as it is an easily workable putty which dries hard. So, once the area is cleaned and any loose timber fibres are removed, the putty can be applied. The rougher the surface is, while still being structurally sound, the better. Pad the putty in tightly. A little more is better than a little less, and it is simpler to remove excess rather than add more putty later. Once applied, leave to dry and check for cracks. Fill them in as necessary until you have a nice, solid fill.
Square and rectangular scoop holes are great, because when it comes time to sand the filler flush with the wood, you can use a piece of timber with some sandpaper wrapped around it, or a small sanding block, to get a straight edge in the tight space of the scoop. This lets you get into the corners of the scoop very nicely. You can bevel/rout the edge of the timber piece to get a softer or sharper corner, too.
This is a good idea on Last Action Hero as you have three holes to work on, so doing it manually with a piece of sandpaper gets tedious. The only disadvantage to this method is that it creates a lot of sawdust. Don't let this fall into the cabinet as you will be cleaning it out for hours afterwards. Luckily, the components under the playfield are placed such that you can insert a couple of small plastic containers under the holes, and tape them in place. These will catch all of the dust and filings while you sand. Neat-o!
Once that's done, you should have some nice straight edges to work with.
Once everything has been filled and sanded, you need to decide what you want to do with the repaired area. You can either cover up the filler with paint to match the playfield, or use a scoop protector to cover up the repair and protect the newly repaired area into the future. I highly recommend the second option. There are a couple of options for scoop protectors on Last Action Hero. Cliffy produces a set, but there are other options available, too. I used a set purchased from PSPA. I hadn't used any PSPA protectors before, so I wasn't quite sure what to expect. Unfortunately, they did not fit well. A metal tang of the protector sits between the underside of the playfield and the scoop assembly, but tightening the scoop assembly pushed on the protector and caused it to rise and bend. This created a lip at the scoop hole which can alter the path of the ball. No amount of fiddling seemed to be able to get the protector flush with the playfield. It also did not seem to fit as snugly as genuine Cliffy protectors seem to. Any movement in these protectors is bad as it will cause them to bend and impact the playfield they are supposed to protect.
Nevertheless, some protection is better than none, so these protectors will are better than leaving the timber bare. My recommendation would be to stick to genuine Cliffy protectors for the snugger fit. All in all, the repair went well, and these scoop holes have been bulletproofed for another couple of decades.
CPU board battery relocation
When I opened the backbox, I was surprised to see some blue Panasonic batteries. Data East originally used this style of battery when the games were built, so it's possible that these batteries were original. Even though they hadn't leaked anywhere and appeared intact, it was still a good idea to get them off the board and install a remote battery holder. This new style of holder was easy enough to get (eBay). The hard part was getting the hold battery holder off the board. The holder is soldered onto the board, but it is also glued, so you need to apply a fair bit of pressure to pry it off. You also may have to clear some of the glue out of the positive or negative vias before you can solder in the new battery pack leads.
Drop target not dropping consistently
Most of the drop targets worked well. However, the 'A' target in C-R-A-N-E would not drop consistently. It would frequently stop about halfway, and would need a fair bit of force to push it down fully.
My first reaction to sticky or otherwise stubborn drop targets is to remove all of the targets and give them a clean. Usually, the build up of grime, coil dust, grease, and other improperly-deployed lubricants can gum up the target assembly quite badly. These targets were a little dirty and sticky, so I figured a clean was all that was needed to return them to normal.
The cleaning had a marginal effect. The targets moved more quickly and seemed to 'snap' down and up more easily, but the 'A' target still did not drop fully.
Keep in mind that Data East drop target assemblies from the early 90s use leaf switches to register a dropped target, as opposed to optos. There are pros and cons to each design, but this issue was directly related to a con of using leaf switches in this kind of assembly. Like the targets themselves, the leaf switch blades had been fouled up, possibly with some kind of grease or other lubricant, which had gummed up and solidified over time. This made the leaf blade sticky, which dragged on the target as it dropped, causing it to stop before it had gone through its full range of motion. This is what was causing the 'A' target to stop midway down. A good clean of the switch blades got them back to their original snappy operation again.
Left outlane metal post missing
I noticed there was a small hole above the left outlane which would normally be home to a metal post above the outlane. These posts are on most machines and they protect the plastic lane guides from getting smashed by ball impacts. Plus, the rubber on them allows you to bounce the ball out of the outlanes. Looking at pictures of other Last Action Hero games online, I found multiple examples of games with a post, and other examples of games without a post installed. The topic is discussed a fair bit in the Last Action Hero thread on Pinside, where some people suggest that a pilot hole was drilled onto all Last Action Hero playfields, but a post was never actually added to the game. This makes no sense to me, as it makes the outlane easier for the ball to fall into, and leaves very little "bounce" to help nudge the ball out of the outlane. Plus, it leaves the inlane guide, made of plastic, vulnerable to impacts with the ball. In the interest of protecting the inlane guide, I installed a metal post. As there is a post on the right side of the playfield, I feel like the post is meant to be there, whether the factory installed it or not!
Whenever installing a post into a pilot hole such as this, it always helps to drill into the playfield with a drill bit slightly smaller than the post's thread. That way, the post won't tilt or skew when screwed into the playfield wood.
Incorrect ramp switch placement
I'm still not entirely sure why this modification was made by a previous owner. The ramp exit switch tells the game when a ball has successfully made the ramp shot. It's located on the rightmost edge of the ramp, on the opposite side of the ramp to the flasher dome. This position is the point of no return for balls going up the ramp, as they will make it all the way down the wireform once they get to this point. The problem on this game was that this switch had been moved so it was now adjacent to the flasher dome. This was a problem because it would award a successful ramp shot when the ball may hit the switch, but then dribble back down the ramp towards the flippers. This isn't good style - a shot should only be awarded to the player when the shot has been successfully made. I can only assume the switch was moved because the right flipper was stronger than it should have been (see flipper section), so it would sometimes fly through the ramp too quickly for the ramp diverter to activate. Moving the switch back effectively gives the diverter more time to react. However, this is not the correct solution to the problem. The flipper should have been reduced in power and the switch should have been moved back to the original position. This is what I ended up doing, and the switch and diverter worked without issue.
Incorrect gun handle assembly installed
Several Data East games of this era used a gun handle for the launch button where a trigger takes the place of a traditional push button. The odd thing about this Last Action Hero was that it actually had the wrong gun handle fitted. The handle on this game originally belonged to a Jurassic Park (Data East, 1993), as evidenced by the "JP" moulded into it! The gun handles for these games are actually interchangeable, as they use the same connector in the cabinet and they have the same number of buttons (one to launch, one for smart missile). Unfortunately, gun handles are almost impossible to come by, so often you'll need to stick with whatever handle is on your game currently until you come across another one for sale.
Trough switch working intermittently
While testing all of the switches in the game, I found some issues in the ball trough. All of the switches appeared to work properly except for the leftmost trough switch. This one was intermittent, at the best of times, and sometimes wouldn't work at all. Someone had stuck a piece of Blu-Tack to it, and when I pulled on it to remove it, the centre switch lug came with it! So, that was definitely the issue. The switch was replaced with a new one. The lesson here is to always be suspicious of Blu-Tack.
Vertical up-kicker not registering balls consistently
Every now and again, balls sent to the vertical up-kicker at the top of the playfield would get stuck there as the upkicker coil would not activate. There didn't seem to be a pattern to the problem; it happened only occasionally and it could work perfectly fine all game until such time it just decided... not to work. I went into switch test, and sent balls to the upkicker, one after another. I was pretty confident it was a switch issue, as the switch alone tells the game that a ball is ready to be sent up to the ramp or crane. Some people have reported issues with the ball getting stuck behind the switch actuator, but this wasn't the problem in my case. A couple of balls didn't trigger the switch properly, so I investigated underneath the playfield. There the problem revealed itself. One of the screws that holds the switch to the assembly had been destroyed; its head was shaved completely off. This allowed the switch to wiggle enough that a ball would sometimes not activate it. All it needed was a new screw to secure it tightly to the bracket. These microswitch screws are sometimes mangled as the heads are quite easily stripped. I'm guessing that's what happened in this case.
Right flipper too strong
One thing I noticed while playing the game was that shots from the right flipper had a lot of power. Data East had a habit of using stronger coils than necessary, which is not really a problem per se, but faster balls leads to greater chances of breaking plastics and other parts. With the stronger right flipper, shots to the cat standup target usually bounced off it with huge force, sending it airborne. Shots to the scoops would often get rejected because the ball would bounce straight back out of the hole. Shots up the ramp would often fly through so quickly that the diverter sometimes opened after the ball had already passed it, instead of catching the ball and sending it down the right wireform.
The coil strength settings were set to normal in the adjustments menu, so I had a look under the playfield to see what the flipper assemblies were like.
Both of the flipper coils are supposed to be the same, but the one of the right was much larger than the one of the left. A larger coil means more power (generally), and that was definitely the case here. Luckily, I had a spare coil which was the correct replacement (part no. 090-5020-30). When replacing a coil, always check that both the part number and resistance of the new coil matches what is expected. Once I swapped the correct coil in, the flipper's power was reduced and was on par with the left flipper.
Lamps falling out of holders above scoops
One of the issues that plague the Data East scoop design is that they often place lamp sockets above the scoops. If they are screwed down tightly, a ball hitting the scoop can knock the lamps out of their sockets after a few impacts. This is particularly a problem on Last Action Hero because there are two scoops with two sets of lamps directly above them. The solution to this is to use hot glue and glue the lamps into the sockets. This is a perfectly acceptable modification in my mind as the glue can peel away cleanly after it cures and leaves no residue behind.
New lane guides above pop bumpers
One cosmetic change I made to the game was to modify the plastic lane guides above the pop bumpers. These guides were originally clear, but I thought this clashed with the rest of the game, which was red, yellow, or other bright colours. It made sense to make these lane guides red so they fit in with the pop bumper caps in this area. The old transparent lane guides were cracked and needed replacing anyway, so this was a good chance to add some flair!
Playfield wear on Golden Ticket
The left scoop ejects balls towards the right flipper. Anywhere you have a scoop ejecting a ball back onto the playfield, you'll have a spot of wear where the ball lands, as the ball is initially airborne when it comes out of the scoop. On Last Action Hero, this area is directly on top of the Golden Ticket, which is an area with gold flake paint and intricate text on it, designed to look like the Golden Ticket from the movie.
The wear on this Last Action Hero was pretty extensive, but had been covered up by someone previously. They had used gold paint to seal the worn area and had covered the entire patch with mylar. All in all, not a bad repair attempt. While the gold paint stands out, it's much better than leaving it bare, and the mylar will ensure it stays in good condition. As this customer did not want the playfield fully restored, repairing this area to look like new was not necessary. However, there is an easy way to do it. Pinside user atariaction has created a ticket decal which is designed to cover up the entire Golden Ticket on the playfield. Plus, the new ticket overlay is actually more detailed and colourful, and better matches the ticket which is depicted in the film. I usually don't like overlays as a method of playfield repair, but in this case, it's not a bad option at all. So, if you're in need of a new ticket, send him a message on Pinside!
Game ROM update
The last official Last Action Hero game ROM version is 1.12. This version has a few bugs and a couple of other unbalanced rules, such as giving you multiball for free on ball 3. Pinsider caker137 developed a new set of firmware, version 1.13, and released it in 2012. This is a worthwhile upgrade for any Last Action Hero owner, if anything just for the more balanced ruleset and extra sounds, which add something new to the game after 30 years! All you need is an ROM eraser to clear the original ROM chip, and a ROM burner to install the updated firmware. There's a great guide on Pinwiki that explains the process. Installing the newest ROM was a quick upgrade that noticeably improves the game.
Flippers not staying enganged
I noticed this flipper issue quickly after having a few test plays on the game before I stripped it down for cleaning and repairs. Both flippers worked and flipped with good power, but they were unable to stay raised when the flipper buttons were held in. This resulted in them "machine-gunning," flipping repeatedly multiple times a second, instead of staying in the raised position steadily. The flipper assemblies themselves looked fine, and the end-of-stroke switches were properly adjusted.
Power is sent to Data East flippers via the flipper board mounted to the left wall of the cabinet. So, I inspected it for any issues. The fuse holders on these boards are commonly broken or damaged, but they were fine in this case. The transistors also seemed OK, for the most part. I only discovered the issue when I started to touch each of the components to make sure they were securely soldered to the board. The transistor at Q12 was soldered to the board, but one of the transistor's legs wasn't secured to the body of the transistor. Q12 is in the flipper hold power circuit, which sends 9 volts to the flippers after the initial 50 volt power stroke. Without this transistor, there was no hold voltage. I didn't have any spare 2N3906 transistors in my tool box, but luckily, Jaycar sells them. After installing a new transistor, the flippers held themselves up as expected.
There's not much to reassembly of Last Action Hero; the playfield is quite simple once you take the ramps and wireforms off. The trickiest part is reconnecting the crane and routing the wires through the playfield properly; make sure they don't bind when the crane moves. There are also some wires that connect to the spinner switch and lamps above the left and centre scoops. Make sure these wires don't interfere with the spinner when it rotates. Other than that, use your disassembly photos to put everything back in place!
All of the rubber rings were replaced on this playfield. The manual specifies that you need 19 post rubbers (part no. 545-5151-00), but you actually need a few more than that (about 5 from memory). The rubber list in the manual is wrong on a couple of other sizes, so get a couple of extras of each size to cover every possibility.
Last Action Hero lamps under the playfield are mostly easily accessible, so swapping them over to LEDs is easy. I didn't develop an LED kit for this machine as I simply used white all over the playfield. This worked well and the inserts lit up nicely. The general illumination was made up of 5 LED lamps which threw a lot of light around. There are a lot of flashers on Last Action Hero - don't forget the four flashers under the mini domes on top of the playfield, too! The backbox was fitted with frosted white LEDs.
To top everything off, there are some nice custom instruction cards available for Last Action Hero available on Pinball Cards.
Last Action Hero is a fun game. When all of the playfield magnets are working properly, multiball is a hell of a lot of fun. Data East was really throwing a lot into their games at this point. Last Action Hero is a heavily mode-based game, so you have to have good accuracy to do well. There are plenty of cool features, too. I love kickbacks that send the ball back to the flippers. The Ripper on Last Action Hero does just that, and reminds me a lot of the Yagov kicker on F-14 Tomcat (Williams, 1989). The crane is one of my favourite ball lock toys ever. I love playfield gadgets that physically move the ball from one place to another and the crane probably moves the ball over a greater distance than most other playfield gadgets in pinball. The shot geometry on Last Action Hero is really satisfying. Nailing the ramp combo shots, or sending a ball to the crane upkicker are both fun shots to do. The playfield is not too cluttered, so some looking for a really deep and complex game may not be entertained for too long, but it has that classic "one more game" feel that a lot of early 90s games nailed perfectly.
The restoration, while it took a long time and was frustrating at times (i.e. dealing with the magnets), was worth it to get this game back to its former glory. The customer was very happy with the result, and noted how all of the shots were so smooth and everything on the playfield worked as it should have. I'd be keen to add a Data East machine to my collection sometime, and Last Action Hero would definitely be near the top of that list.
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