Dave's Think Tank will think about any problem you suggest. You will have our undivided attention for five minutes, at the end of which we will give you the solution you need to get your economy back on its feet, or to save your oil company profits, or just to fix whatever you managed to screw up.
Hey Dave, Great work on taking Flash Gordon to the next level! Do you happen to have a shortlist made of the 30ish sounds used on the machine? Like 0227 = Outlane, 0247 = Spinner etc.. I just got the Geeteoh board in my FG and am going to customize your mix a little for my own version and a list would be super helpful. THX!
I fixed it so that if the ball goes down without hitting anything, it will kick your ball back out. I'm not sure if that counts as ball save. You can absolutely program a ball save with whatever rules you wanted, though.
@@davesthinktank I had someone write a ball save for my FG roms about 6 yrs ago and its a game changer especially for guests!(: He wrote it using that first switch you hit in the shooter lane and then test bank 20 in the admin has 1 to 15 to roughly account for up to 15 seconds of ball save time, so you can adjust it. So when you launch the ball the timer starts after you hit that first switch in shooter lane, it also lights the shoot again circle insert at the drain letting you know that it just popped another ball out into the shooter lane. Its an amazing feature and allows you to set the game to 3 balls vs the old school 5 balls.
Not sure if all Solid State 70s and 80's pinball games watchdog circuits during power up boot sequence would shut the pinball game off and reset the pinball game if any coil is locked on or shorted which I'm not sure if the watchdog circuit did this or not?
Interesting question. I haven't heard of this, or read it in any manual, so i would have to say no. It's a good idea though. Maybe I'll look into how the arduino might achieve that.
I just checked an Alltek manual for their solenoid board, and it goes through a check for stuck coils as you suggest. So, the 70s/80s pinballs can be upgraded to do this.
@@davesthinktank Yes but only the Alltek replacement boards do this check for stuck coils. Its something in the boot sequence program loaded on the ROM chips but the 70s and 80s ROM chips don't have this check for stuck coils doing the boot up so the watch dog circuit on the Alltek boards are different also to check for the stuck coils it seems.
The sound in this video is from the original speaker. I wasn't happy with the sound, and so in a later video I replaced it with a huge speaker on top from an old surround sound system! It had great sound, but I eventually figured out the bad sound was actually on the sound file I was using, which was a clip from the movie, including electric buzzing and whizzing noises from a space battle. So currently, I am back to using the original speaker.
That’s pretty slick. I like the apron and other photo mods you’ve done. Have you tried putting Mylar over the spinner and drops to protect the artwork? If you decide to put your designs up, I’d love a copy. I can get you my Pinside ID or my email is in my about me on RU-vid here. Thank you.
I actually made it myself! I designed it using an online photo editing program (pixel.com). It was too big for regular paper, but I split it into two parts and printed them on 8 1/2 x 11 photo paper, then cut them out and joined them. I have a couple videos going over the details. See my videos "Make your Apron Pop", and "Introducing Flash Gordon". I should probably make some of my redesigned aprons and targets available on line.
Dave I could not have more empathy...I recently decided to finally fix a three issues my WORKING original Black Knight 1. the jet popper (only has one) wasnt working 2. the knights voice was deep in the background but clearly wasnt hitting the amplifier circuit...I dug into the popper problem, the coil tested good ...the diode bad...replaced and with the first pop...the displays went out...like I had unleashed a curse ...its been issue after issue...a kicker coil came on staying on...diodes I'd replaced in the power supply were dead...fuses are burning at power up uuuugh...but it just made me more obsessed. Ive done plenty of electronic work in my day so schematics are not a problem...the deep dive into the pinball circuitry has been nothing short of fascinating ...I'm in a very rural area so if I need a 330K resister its a 2hr drive or 3-5 day wait...Ive got a bag of parts on order and now I wait!
I did eventually fix all the Vector's issues! It's been great since. I usually find the bigger the problem, the smaller the cause. I had things shorting out all over my Star Trek a couple years back, and finally tracked it down to a bit of solder that dripped from a repair I had been working on, to short a switch to a solenoid! I hope your new parts do the trick!
Dolly Parton, I assume? Good game. Not all the old ballys have a suitable spot for a video display. I was thinking maybe one of the card slots could be used. BTW, see my other video where I add a video display to the Flash Gordon. I give a lot more detail on the steps required.
Your ENDING FRAME captured the undying, pure youthful JOY pinball still no matter HOW old we are! It made me grin EAR ta EAR, buddy!! GREAT PIN, GREAT WORK!! 👍🤟👏👏👏👏👏👏👏
Hey, thanks! That was actually completely spontaneous. I put the camera up at the ceiling so you could see the whole machine, and when I turned around and looked at it, it made me think of Flash jumping at the camera in the final scene of the movie!
Watched my own game, and noticed my middle pop bumper was dead on the right side! The skirt needed to be re-centered in the spoon. Used the same techniques discussed in the video.
It really does! I have a replacement sound board, from Geeteoh Electronics. I made a video on installing it ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-1wFn0PuC6MU.html , which added most of the sounds and music that you hear, and also one on how to customize it with your own sounds ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-G9YgYAGwlz0.html .
Good spotting! Yes, it has always been very insensitive when hit from above. Any other direction is fine, though. Maybe it's time I did something about that!
Thanks! I really love that it allows you to add your own sounds. If you watched my game at the end, every time i hit the drop targets down you can hear Kirk yell, Khaaan!
I actually had one for a while. It was mismatched with all the other bulbs, and bugged me more than the light in my eyes! I replaced all the gray spacers a while back with white, and this white cover looks really good among them 😀
See the video how I did this, and how you can add a video player to your own pinball! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-HL4eKUpZwSk.htmlsi=JklxXRwoLiCAeluT
Mouser, digikey or newark are much better for capacitors. Digikey ships in Canada for 8 dollars and it comes in two days. Over 100 dollars is free shipping.
Good questions, and I'm probably not the guy to answer them! But I'll try: Once an SCR has power to the gate, it allows power to flow from the anode to the cathode, but the power to both gate and anode are needed to keep the circuit open and current flowing. I assume then that low voltage to the anode can then cause the circuit to fail, or at least cause it to fluctuate. This appears to be a problem only for a small number of (40-year-old) SCRs, so it may be more of an issue of wear. As to why SCRs rather than FETs, I couldn't tell you. I can say, though, that the lamp driver board is the most dependable item in the backbox. MPU, regulator, sound and rectifier boards need lots of maintenance, and are more and more frequently replaced, but most machines still have the original lamp driver boards working away. So, using SCRs seems to have been a reasonable choice. Only the unpredictable switch from incandescent to LED has caused any issue.
@@davesthinktank The SCR is turning on/off the power supply voltage to the lamps/lights on the pinball playfield. The SCR is in "parallel" with the Lamp bulb or LED. When the LED is in parallel with the SCR its causing the SCR to self oscillate or fluctuate the SCR gate voltage or anode voltage causing intermittent on/off which I'm not sure why. The datasheets to SCR's doesn't say anything about the SCR's Load impedance.
@@waynegram8907you have to consider the difference between electronic components in a schematic, and in the real world. In a schematic, everything works perfectly. In the real world, things deteriorate and sometimes fail. What may have worked perfectly with an LED 40 years ago may not be up to the task any more.
I should have expanded a bit more on how the relays work. The +ve sends out 12 volts, and the -ve has a switch which is switched off until one of three pre-set conditions occurs. Then it switches on until the end condition occurs. So you can add anything that works on 12 volts to any of the relays. The strobe I'm using takes 12 volts.
If you like, next time you can just cut the wires off of the old board instead of desoldering. You can also leave some of the wire cover to help remind you the location. Then strip the tip and insert or solder.
That's a good suggestion. I haven't had that problem, as I always use a light spray, and wipe the drips first from the bottom up. But, spraying on the cloth would be safer.
Great vedio. Im working on a 8 bal and was wondering how good this golf board is because i need to replace mine and now im sold on the board! Cant wait to get my game going
Adding this here incase it helps someone else. If the target will not stay up and you are confident the spring is not culprit, check the shooter lane switch. Every time that gets triggered it will bring the single drop down so that you are able to plunge. I had an issue on mine where the shooter lane switch was too close together so vibration within the machine would close it and it kept randomly bringing that target down.
Excellent point! There are so many interconnected parts in a pinball machine, it takes a lot of ingenuity to think through how one part can make a completely unrelated part fail. Good job figuring that one out!
@@davesthinktankHoly crap! Thanks for this! This issue has been driving me friggin crazy, until I watched your vid! I was all over the usual websites for weeks trying to figure it out, until I searched “Flash Gordon single drop target behavior”, and I watched your tutorial. We’re all good now, thank you!! Whew!!
Dave...What was the part number for the Bridge Rectifier you used on your power supply? I have the same issue on a 1981 Bally Embryon I am working on for a friend. It uses the same power supply shown in this video.
The original bridge rectifiers used in these games were only 8A, and (I think) 200 V, and were seriously under-powered. I replaced the one in my machine with a 35A, 400V bridge rectifier, which is heavy-duty enough to handle anything that might come through the power supply. The part number is GBPC3504W, manufactured by GeneSIC. I bought it from Mouser Electronics, for about $7. The heat sink was around $3, part number 532-6222B. The specs say the part has a heat sink built in, but I added one anyway.
Sorry, I'm more of an early-80s Bally guy. But I watched a video on your machine and it looks amazing! Whenever I get an issue like that, I try to isolate exactly what happens to cause it. Is it some simultaneous hit? Does something open up during multi ball that is unavailable or rare otherwise? Then try to reproduce it, without having to play all the way to multi ball! At that point you can begin looking closely at the switches or solenoids involved. Tracing the schematics at that point may help. The Pinside community often has solutions to problems already, or join and post your problem there. I always find that, when something goes wrong, I get a hopeless feeling in my stomach that says this may be it. But I've always been able to ultimately find a solution!
Another thought; go over any changes or fixes you've made recently, and make sure they are working as expected. Any solder spills on anything? I keep a journal of all repairs for that reason.
Here's a Pinside conversation on a related topic, with some ideas for tests. I hope it helps pinside.com/pinball/forum/topic/testing-de-ball-trough-switches