Ok everyone my comet all of a sudden a couple days ago started to have a few lighting issues. After consulting my manual it appeared to be row 5 on the lamp matrix table that is my problem. I started by checking fuses which all turned out to be good, next i checked every diode on each lamp which also passed the test. The switches all register as they should they just don't light the corresponding light they are linked to. Then after I poked around trying to find the problem more lights decided to also stop working.Initially the 2x light associated with the dunk the dummy was out and the 3, 4 and 5x were still lighting but now they also quit working which is strange cause the 3, 4 and 5 are linked to different rows in the matrix. I am pretty stumped on this one so any thoughts would be greatly appreciated. Thks

Ok so I messed with it for about an hour tonight and figured out part of my problem. Turns out some wires that attach to the 2 molex connectors on 1J7 at top left of the cpu board were loose. In the process of refitting the wires i noticed one connector had 2 wires. Since I cant find anything that tells me which wires are to go to which pin in the connector i'm asking someone to verify starting from left to right the color of the wires and also if there is supposed to be a connector with 2 wires instead of just 1 like the others. Thank you for any help, Bill.

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Thank you Jay for the pick and th he wiring info.Turns out my wires were backwards on the left side of the plug. Unfortunately i still have the original issue that all lights associated with row 5 are out. I have unplugged and then reattached every plug associated with the red/green striped wire leading to every lamp in row 5. I am really confused at this point because I have traced that wire looking for any loose connections or defective diodes and am coming up short. Any more thoughts from anyone as to what I am missing? I would almost bet its something thats staring me square in the face but i'm just missing it.

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No pierre, thats the direction I will head next as I wanted to knock out all the straightforward stuff first. Now that I have eliminated these steps as stated earlier what exactly am I looking for on the board itself?

I wouldn't use them on comet I put them on and experienced the same things you stated. I went back to the Perfectplay silicon ones terry sel los over at pinball life.

Was the transistor on the mpu board?

Thank you will start testing those later on today.

Any chance you could post a pic of the transistor on the board you replaced and any pre drivers also plz and thk you.

Thanks will definitely try testing those next and updating on my results.

Very little time today to mess with my machine. A 9 week old child doesnt work with your schedule very well. I noticed those transistors have 3 leads on them. What is the process to test them to find if one is faulty with 3 leads instead of 2? Thks

Ok so I did a whole lot of testing now that I actually had a little spare time.

So Q35 which is a tip122 is only giving me a reading off 1 leg only. So with that i would assume (I know I know never assume right) that more than likely that is a bad transistor and is what is causing my lighting row problems.

That looks to be in bad shape. My suggestion would be to get hold of Chris Hibler and send him your board for repair. I just dropped mine off to him bout 3 weeks ago to be repaired as it was jacked off also.

Does anyone know where to find NOS or new replacement duck and rabbit targets? Gonna be doing a full plyfield swap in a few months and want to start aquiring some replacement parts.

I should have been clear that i'm looking for the switches not the stickers that go on the switches. Thx

Funny! My current one isnt nearly in as bad shape as that, just wanted one to look new again. New ramps from Mark Freeplay40 are sitting on a shelf waiting to be installed on my new to me playfield. Ok Scott keep those status pics coming.

Looking good Scott, you are making good progress on it. With this whole new playfield it may just inspire me to overhaul the cabinet and re-stencil as well.

If anyone is interested I had bought the last overlay from user boydsc331 and drscottsmith had just started to refurbish an old playfield for me. If you aren't familiar with drscottsmith go back and read this thread he does beautiful work with these overlays. Due to some extenuating circumstances that came out of the blue a few days ago I will no longer need the playfield and wanted to pass this opportunity on to a fellow pinsider. Scott has already began the process and is almost done prepping the old playfield for the overlay. If somebody is looking for a new playfield now is your chance to get one and not have to wait very long to get one pm me for details.

Congrats! Nothing worse than a pesky problem that keeps you from playing your game. If you are ever gonna listen to anyone he is the guy to listen to. I've spent hours reading a bunch of his how to's.

Thats very strange indeed. I also had the pinscores on my comet and the commas never worked on it either. It will ne very interesting to see if you get to the bottom of it amd figure it out.

Any new news to report in your missing commas? This post has intrigued me because I had the same problem wirh mine. It was really aggravating and but I had just dealt with it. Can't believe I didn't ever think of emailing marco to try and get the problem resolved.

Agreed! Can't say enough good things about Chris. Im super fortunate to only live about 20 minutes away from him. He has repaired a few boards for me and his work is 2nd to none.

What are the dimensions if this and where would it go in a comet?

Switch 43 "outside left lane" has I guess finally died. Was acting flaky and working intermittently but has now completely quit registering. Nobody sells this part anymore at least not marco or pinballlife. Does anyone know of a different switch that can be used as an alternative? The manual calls it switch b-8410 and its part number is a-5844-35. Vid I know you did that hardtop overlay on your machine maybe you can weigh in here if you had any to replace? Thks

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Sorry I should have been clearer. Yes it is just a leaf and the wireform when rolled over closes the leaf. The wireform is what is broken and was causing my flaky problems. Was wondering if anyone has ever changed the whole switch out to a newer micro switch style? Othereise I will have to try to replicate the wirwform to replace the broken one.

Thks Mark I totally forgot about checking over at pinball resource will definetely check them out now.

Well I knew for sure you would have went all "Macgyver" on those wireforms and rigged something up to work for sure! Thank you for the advice

Well i'm not sure how I never put 2 and 2 together and figured out that space shouldn't be bare. Just double checked my machine and I too am apparently missing that piece as well. Always thought something should go there but thought williams just cheaped out on that space since its kinda hidden by the center ramp.

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Ok well I guess heres my plea now. If anybody has an extra one of these plastics and you would like to help a fellow comet owner please PM me with what you have and how much you want for it. Everytime I look at it now it's totally going to annoy me knowing I have a part missing. Thks..

No AIN plastics around me. Any idea where else and maybe what thickness to look for?

You cant tell in any pics but I put 2 flame bulbs in the eyes on the comet coaster behind the backglass and they look pretty damn cool. Next time you put in a bulb order from comet grab yourself a couple and I think you will be pleased with the effect. I know I am for what its worth.

Wow wow wow!! Damn that looks fantastic, congratulations on your brand new comet!

Thats awesome looking side by side with its older brother Cyclone. Now all you need is a Hurricane and you will have a very sweet trifecta of fun!!

Has anyone made any custom cards for their Comet machine? The stock ones completely suck and I just haven't found any others that I like.

Can u post a pic of yours?

If that flag idea goes anywhere sign me up for one as well.

I'm still on the hunt with no luck as of yet so if anyone has an extra one of these plastics right at the exit of the cycle jump ramp please hit me up as mine is missing.

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Since it appears nobody has a spare plastic from the pic above at the cycle jump ramp would it be possible for some kind soul to take theirs off and scan it for me please? If someone could do this just shoot me a pm and I will provide an email address to send the scan to. Thank you

Well hopefully someone will scan one in for the both of us. At least that way we could fabricate a decent replacement

Would be most appreciated. Thx for the offer.

Thanks Dave!

Thank you as well never hurts to have multiple pics.

I second that statement.

Mark's (@Freeplay40) work is 2nd to none you will be very pleased with a new set of his ramps.

Any update on anyone being able to get a scan of my missing plastic?

Have you examined the connections to make sure that you don't have a wire that has come loose or a cracked solder joint?

There was a guy selling reproductions on ebay I saw a while back not sure they are still there but check it out.

Any of you close to louisville this guy has a nice backglass listed for sale. louisville.craigslist.org link

Cool hopefully it works out. Would really like to.see somebody who really needs 1 get it.

Way cool! Super glad your going to get it.

Welcome to the club it is such a great game that i'm sure you will come to enjoy. You are going to want to contact Mr. Clean though and see if he has some free time to swing by and help you clean cause that puppy it is beyond filthy. Too bad you are way across the globe I have an extra display that I would send your way to help get her up and running. I'm sure if you put out an S.O.S call over there some fellow pinsider would have some parts to help you out.

Super big thanks goes out to @yaksplat for sending me this little missing plastic by the entrance of the cycle jump ramp. I've been looking for this piece for 2 years and now finally my machine is complete. Cannot say enough good things about so many people on here who have sent me missing parts or offered advice. This is such a good community of guys and gals and i'm glad to ne a part of it. Thanks again @yaksplat

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Hey Jay were these the displays from Marco. I hsve a replacement set from him and the commas don't work on mine. Was wondering if this trick would work to fix mine as well.

Seems like I checked mine back when that was posted and I don't recall mine having that jumper. I will check again who knows I might have been half in the bag when I checked. It's very annoying not having the commas show up. Thx

So looks like my displays are Pinscores and are Revision "E". I don't see a jumper anywhere on the board. All I see is a push button switch in bottom left corner labeled segment test and a small dial style switch in upper right corner with no label. Can someone please post a pic of this jumper so I can see if it's something that i'm missing? You can see in the pic commas are there they just don't light up.

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I like it as well

Is the word Comet below your coin door just hand painted on? Mine does not have that and I have never seen that on another machine? Does anyone else in here have this on their machine?

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Guess I missed your post. I can't believe i've never noticed that before. If anyone who has these on their machine could measure the letters and post the measurements that would be great. My wife has a vinyl machine and could cut the letters if I know how tall and wide they are.

Any chance you could get a rough measurement of heighth and width of the Comet letters. Doesn't have to be 100% accurate just as close as possible. I want to recreate these and add them to my machine. Also hard to tell from the photo are the letters yellow or white or an off white?

That would be really cool now we just need someone who has those letters on their machine to do that.

Very nice. Always good info to have. Thx!

Looks great for sure what did you end up using for the mirror?

Mine came with one like the bottom plastic.

The one I have is actually cracked I need to find a replacement piece. I wish the reproduced ones were like the original that you have posted there I like that one much better.

That bottom plate was just something that an operator probably fabricated to keep people from busting out the bottom and stealing the coinbox. Although who knows there seems to be quite a few variations of how this game was made so maybe yours came that way. I do know my machine does not have that metal plate underneath that area.

Nice job posting these pics i'm sure it will help all those interested in adding the missing letters to their machines.

Finally got around to having my wife make me the new letters on her vinyl machine. I'm really happy with how it turned out. Thanks again to yaksplat for scaling the letters and to midcoastsurf for posting the pic of his.

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Lots of great info for sure and welcome to the club. Won't take that long and you will definitely pick up some good tips and ideas.

Finally found a little time to get around to messing with this. So I took the 12 wire connector j10 off the Pinscore controller board and pulled numbers 10 and 11 loose and swapped their locations in the connector and reseated it. Restarted the machine and I still have no commas displaying. What am I missing here? My controller board is revision E, my displays say they are revisiin B.

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I have them both and am patiently waiting on the center ramp. I went with black kyvex cycle jump ramp for the added strength but after seeing that red version of it installed I wish I would have bought it instead.

Does anyone happen to know the part number off the original slingshot? I ordered 2 new ones from Marco and the ones they sent are not the same. You can see the the leg that activates the switch is much longer on the original. It is too short to activate that switch on the new replacement ones. Figured i'd try pinball resource but we all know if you don't have a part number you get screamed at. The original is the one on the right in the pic.

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Ah ha.... Looks like you are right as usual. Thanks Vid.