(Topic ID: 51119)

Gottlieb Hot Shot keeps running when pluged in! Need advice.

By Dan329

10 years ago


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There are 284 posts in this topic. You are on page 5 of 6.
#201 5 years ago

Hi guys,I have cleaned score reels and motor,going to go over switches today.and resoldier some lugs here and there in machine.to get it freshened up.also a couple of slam switches.will see about score motor.going to test it with meter.will keep checking in with you guys and let you know my progress,again ,thank all you guys for sticking with me on this project.i feel we have made good progress so far.and it won't be long now.

#202 5 years ago

Again I’m not the technical help like pafasa but you got my support here. I do know mine was sitting for so long with the large reset bar against the front row of switches it had bent a lot of blades to a point where those that were supposed to be open were closed and vice versa. Then the credit reel threw me for a loop. It would rotate until one pin touched a blade then nuttin. So I rotated around where it would not touch. Put the alligator clip on the small blade and no more rotating and free play after that. It cleared a few problems. Again not the tech support but here with ya nonetheless!

#203 5 years ago

Really like the suggestion to check the reset bank switches.

So still no score motor operation at all?? There is a fuse in line with the motor. It is a 10 amp fuse. The two wire colors attached to the fuse will be Solid Red on one side and Red with Black stripes on the other.

There is also a bounce switch in line with the motor circuit too. It should be normally closed and the wire colors are, Red with Black stripes and Red with White Stripes.

Red wires are almost always faded and very hard to see, so use a warm flashlight to verify wire colors if needed.

post a well lit pic of the score motor from above, close up and backed out a bit.

HotShotSchem (2)_LI.jpgHotShotSchem (2)_LI.jpg
#204 5 years ago

Notice all the open switches on the schematic up by the Motor 1C switch. If any of those switches closes, even momentarily, the score motor should start running. W, C, D, E, O, Q, S, U, SB1, SB2

W = 2nd Chute Relay
C = Add Bonus Relay
D = 500 Point Relay
E = #8 Hole Relay
O = Ball Return Relay
Q = Ball Return Control Relay
S = Start Relay
U = Control Bank Reset Relay
SB1 = Reset Control Relay (in reset bank)
SB2 = Reset Control Switches (also in reset bank. no coil associated with these switches)

All of these are normally open, Any of them close and the score motor starts turning. The motor is kept turning by the Motor 1C switch until the motor reaches its next home position.

There will be multiple switches in these relays. You can use the schematic to identify these switches by wire colors. All of them will have Brown with Red Stripes on one side and Red with White Stripes on the other.

All that being said, You have manually triggered a few of these relays already and the score motor has never started running. I suspect the fuse is bad.

#205 5 years ago

It’s this fuse. 10 amp fuse. Now that I look closer, the fuse holder looks bad too. The fuse may be good but it doesn’t matter if the holder is loose. Check that fuse and the holder too.

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#206 5 years ago

Hey Pafasa,i will look at those switches this evening.,my question is about the fuse.my schem shows me only two 10 amp fuses.one 5 amp and the rest 2 amp.or am I reading incorrect.i have a sticker that labels all three fuses together by tilt bob as 10 amp.but was confused by schem having many 2 amp unless I read schem wrong.no biggie .will put 10 amp where you showed me.and will go over switches and report back this evening. Thanks guys.

#207 5 years ago

Hope you don't mind some additional help. You are blowing fuses because you have a short circuit. In my experience the most likely causes of this are bad coils, crossed wires or bad lamp sockets. Have you visually inspected every coil in the game for one that's burnt? These are usually easy to spot because the paper wrap will either be gone or brown and the wire windings may be black.

#208 5 years ago

If the game is on and you manually start turning the score motor counter clockwise, it should run for 1/3 of a revolution and stop. Agreed with pafasa that if this isn't happening, it is likely related to a fuse.

#209 5 years ago

Thanks bonzo. Good advice. I bet that fuse is good and the problem is a bad fuse holder in this case.

#210 5 years ago
Quoted from pinballbrian:

Hey Pafasa,i will look at those switches this evening.,my question is about the fuse.my schem shows me only two 10 amp fuses.one 5 amp and the rest 2 amp.or am I reading incorrect.i have a sticker that labels all three fuses together by tilt bob as 10 amp.but was confused by schem having many 2 amp unless I read schem wrong.no biggie .will put 10 amp where you showed me.and will go over switches and report back this evening. Thanks guys.

According to the schematic, that fuse with those wire colors is a 10 amp fuse.

Bonzo is right about a shorted coil blowing fuses. Definitely could be part of your problem but In your case, I would bet the fuse holder is the culprit here. Check and repair that first. I expect your machine to jump to life soon!

#211 5 years ago
Quoted from bonzo71:

Hope you don't mind some additional help. You are blowing fuses because you have a short circuit. In my experience the most likely causes of this are bad coils, crossed wires or bad lamp sockets. Have you visually inspected every coil in the game for one that's burnt? These are usually easy to spot because the paper wrap will either be gone or brown and the wire windings may be black.

I certainly don’t mind any additional help/wisdom and neither should anyone else. It’s fun trying to help others get their machines running and also quite a challenge doing it without being able to physically see/touch/hear the machine. Thanks so much for chiming in. Do you have a Big Shot schematic?

#212 5 years ago

I have both a Big Shot and Hot Shot schematics.

#213 5 years ago
Quoted from bonzo71:

I have both a Big Shot and Hot Shot schematics.

Sweet. Do you see the same thing I see with that 10 amp fuse? Looking at the pic of his fuses it looks like the upper clip on the holder is weak and spread open. If that’s the case, of course the motor won’t run.

#214 5 years ago

Hey guys ,false alarm.ha ha.im not blowing fuses now.solved that problem earlier.where were at now is trying to get score motor to turn .going back to post 205.the fuse is not blown.it was a 2 amp slo blo.fuse is fine.just wanted to ask about schem since I only see two 10 amp in schem.ha ha.are those 3 fuses in post 205 all 10 amp.im cleaning score motor switches( I do that pretty well) .have already done two williams.they work fine.will update where I'm at when finished and plugged in.we will know where were at then.was just asking about fuses.no biggie.

#215 5 years ago

See ,if I put another 10 amp in there.i will have three 10 amps in machine.we already put one 10 amp in #3 spot ( see post 205).also in bottom cab board is 10 amp slo blo.next to it goes 5 amp slo blo.then a pair of 2 amp slo blo,s are under playfield .according to there labels.only 2 amp slo blo,s are left.see pic.thats why I asked if you were sure that fuse in post 205 is 10 amp.sorry if I confused everyone.ha ha.

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#216 5 years ago

I thought I would show sketch of where fuses are located in machine.if I were to put a 10 amp in where you say in post 205 we would have three 10 amps ,because when we found short.you said put 10 amp there.# 3 spot.then we have 10 slo blow on cab board.it has label.

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#217 5 years ago

Brian, I understand your concern. I want to try to clarify all of your fuse questions.

Answer for me this. Have you posted a pic of every fuse in the game? If so, I will go through all the pics and cross reference them by wire color on the schematic and label the pics and repost them in one post for you.

OR........

If someone else out there has a Big Shot and would be willing to help with the fuse confusion........??

I’ll start working on the pics of fuses you have posted. I agree that there seems to be more fuses on the schematic. Brian, doublecheck to see that you have indeed posted pics of ALL fuses in the game.

In addition, find all the slam tilt switches and post close up pics of those. Look in.....Coin door, control board, under playfield??, in backbox. I want to see the wire colors on those so I can help you determine if they should be open or closed.

I noticed that the coin slots are gone. I wonder what other “mod/hacks” have been done before you got this game.

#218 5 years ago

Cool,and one correction on my part.have 4 fuses under playfield.my bad on that one.you may be right.will send pics.thanks for bringing that to my attention.first set of pics are all fuses,at least I can find.will send pics of slam switches next.want to look over,make sure I'm not overlooking some.again thanks guys.

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#219 5 years ago

Here are all slam switches I can find.backbox ,bottom cab,under playfield,and coin door.

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#220 5 years ago

That looks like all the fuses. Your pics match up with the schematic.

The four under the playfield are all 2 amp slo blo. They are part of the target bank reset circuit

The three by the tilt me h are all 10 amp standard the two on the right (2, 3) are playfield and backbox lights. The one on the left (1) is the score motor. Even though that fuse is good, make sure you have continuity through that fuse holder. Test at the holder solder terminals. It looks funny to me, like someone has added solder inside the fuse clip.

The one labeled primary fuse is correct. 5amp slo blo

The one labeled bank setup is also correct at 10 amp slo blo

That’s all the fuses according to the schematic. I bet the two you are missing when looking at the schematic are on the left side of the schematic just above the listing of “relays”

All total there are (4) 2a slo blo, (1) 5a slo blo, (1) 10 a slo blo, and (3) 10a standard fuses

#221 5 years ago

Will get back later on the slam switches.

#222 5 years ago

Your correct.my bad on fuses under playfield.dont know how I missed 2 on left side.one was blown( could of blown before I purchased machine) but will replace.see pic.i removed it from holder.will see if it blows when I test machine again in morning.

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#223 5 years ago

wire colors match up on all but the coin door switch but I’m sure of the text I put on the pics. I wonder if the coin door isn’t original.

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#224 5 years ago

Hi guys,making progress,cleaning switches,ect..thanks pafasa,those switches were a need to know.i would have set them open.glad you showed me.still have a few switches,including slam switches to clean,then will try starting machine again.will update this evening,as I'm busy today on other project. ( lawn care).ha ha.again thanks ,and please check back this evening,as I'm hoping to try and start machine by then.

#225 5 years ago

Wow.mine is working but I’m going to go thru it with these photos and notes. Just so I can learn here. This is excellent. Pafasa - just so you know I’m trying to pay it forward. I actually flew to NC to help an elderly lady put together a Mata Hari (SS). Her husband that had passed had it almost complete. I got it all working except the flippers and bells. Then looked at the sol driver bd. Fried. Ugh. But then drove 10 hrs home. I’m finding her a board to replace. But I think I can get her playing it soon. Another posting. Lol. But still admire your help here brother !

#226 5 years ago

Hi guys,thanks nikrox2 for your pics and support.score motor was a tedious task,switches were broke off,lugs were broke off .here is where I'm at now,if video will load.when I plugged in head lights came on,score motor turned 1/4 turn and stops,also left drop target bank resets.dont think I blew any fuses.again thanks guys.(what to do now)?pics are before and after of score motor.again thanks ,will try to post video when I can figure out how.ha ha.

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#227 5 years ago

Making progress and seeing some signs of life! Good news. You said the score motor turned a bit and then stopped.

What happens if you manually turn the motor in the counter-clockwise direction? Once you move it enough, it should take off on its own and make a 1/3 rotation.

#228 5 years ago

If the motor behaves like I described, let’s keep that motor moving. Sometimes after cleaning switches, they need to be worked a bit to finish cleaning them. The more you use EM machines the better the switch contacts become (to a point of course). Try to get the score motor running by manually actuating the start relay “S”. Do that over and over for a while. You might just find that slowly more and more of the machine will wake up.

#229 5 years ago

Don’t see a video. I’ve had good luck posting videos in the past on YouTube and then posting a link on pinside.

#230 5 years ago

Thanks for responding quik.if I push score motor it takes off and goes to next home position,drop target resets .also if I manually push S relay,it does same thing and left drop target bank resets.im thinking that's good news also.again thanks.any suggestions now.?.i guess try troubleshooting down the line.will follow your lead.

#231 5 years ago

Are all the 2a slo-blo fuses installed and good? Do you get continuity across all four fuse holders? Those fuses are for the drop target reset circuits

#232 5 years ago

I was thinking same thing.will look and report back.

#233 5 years ago

Hey guys,hang tight.i discovered some problems in backbox,broken lugs,ect..i thought I rebuilt more than I dod when I left off last spring.turns out,I only did score reels.relays are cruddy.just finished rebuilding AS relay next to score reel relays,parts were in great shape.easy rebuild.going to finish some homework on it ,so please be patient.also pafasa,will check those fuse holder ,and will replace if needed.(bought a few extras when I ordered fuses,knew I would need them).anyways,i will update this evening or tommorrow.

#234 5 years ago

Hey guys,still soldiering lugs,( clays pinrepair is correct).old soldier has turned to pewter,lugs are taking additional time.having to sand lugs,they don't want to stick.ect..anyone who has done this work knows what I'm talking about.please be patient .will update asap.again thanks .

#235 5 years ago

excited to hear results.

#236 5 years ago

Hey guys,thought I would update.im about finished with backbox.been going totally thru it.,just jones plug to freshen up.and score reel switches to adjust. ( that was a he'll of a jobl).i should be ready to continue in couple of days.good news is ,I found a lot of frayed wires ect..we should be in a lot better shape then.again, thanks guys for hanging close.

#237 5 years ago

Hey guys,alright,I finished the backbox.as you can see ( or zoom),I soldiered every connection.went thru everything..Pafasa,changed fuse.both drop targets reset when I activate start relay manually.other than that,I'll wait for your reply.again thanks guys for pushing me a little.it took all week,but back box should be good to go .will try and send pic.

#238 5 years ago
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#239 5 years ago

She's looking good!

#240 5 years ago

Thanks Nikrox2,that was time consumming.i dont want a 4 player game.ha ha.i still have another that may need same thing.pretty sure of it.im also glad I do not have anymore short circuits.i think I'm getting close now,just waiting for pafasa ,and see what he thinks.if we should jumper a relay or what?.tried to show video ,but this phone won't allow jpeg it says.and I'm not phone savvy.maybe I will ask someone if they know how.will see.

#241 5 years ago

Looks good. Do I understand correctly that the credit button on the coin door still doesn’t start a game?

#242 5 years ago

Hi pafasa,you are correct.the start button does not start a game.

#243 5 years ago

What happens if you manually actuate the “y” relay. It’s the replay button relay.

#244 5 years ago

I don't get anything.its dead.

#245 5 years ago

Use an alligator clip jumper wire. Make the jump around this fuse as shown in the picture. Attach to the fuse holder lugs. Then try the start button. Then try the “Y” relay if the start button doesn’t work.

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#246 5 years ago

Ok,I tried that.still no good.fuse and holder are good.what about jumping s relay from start button.or is that wrong.dont want to fry wires.

#247 5 years ago

When you manually turn the score motor counterclockwise, it starts turning on its own and makes about 1/3 turn. Confirm if this is correct. If so, we need to start checking switches. We can do it with a multimeter set to read 25v dc or we can try jumper wires using the schematic. Let me know for sure the score motor runs.

#248 5 years ago

Yes,the score motor turns.and I have multi meter ready.

#249 5 years ago

We can wait on the meter for now. Make sure that there are some credits on the game. There is one switch that needs to be closed when the credit unit moves above zero. That switch is in the “y” relay circuit. Make sure it is closed and then try the start button again.

#250 5 years ago

Will do and update tommorrow.im going to need to clean relay and switches.again thanks for hanging with me on this.

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