Hello All,
This machine has me stumped. For the most part my Gottlieb big hit will not do anything (dead,no lights nothing) On occasion I can hit the target relay and it resets the target but it sounds like it’s getting way to much volts/juice when resetting. Then back to nothing. Completely dead. I Removed all the fuses and checked them. Everything seams to be getting power. What am I missing?
CC96EAC6-E54C-48E1-9F91-1CFD6C34D923 (resized).jpegQuoted from SteamVette:For the most part my Gottlieb big hit will not do anything (dead,no lights nothing)
Does it reset when you push the Replay button on the front door?
Quoted from HowardR:Does it reset when you push the Replay button on the front door?
No. It does nothing. Like it’s not even plugged in.
If pushing in the U relay (is that what you meant by the target relay?) gets the bank to reset, then I'd assume you have 120V in the lower part of the circuit - although you said it only sometimes works.
What happens if you manually press the armature on the S relay, does the machine do anything?
Quoted from paulace:If pushing in the U relay (is that what you meant by the target relay?) gets the bank to reset, then I'd assume you have 120V in the lower part of the circuit - although you said it only sometimes works.
What happens if you manually press the armature on the S relay, does the machine do anything?
S relay does nothing. This thing is dead. But sometimes the U relay works. It’s very spotty..
Quoted from paulace:Do you have any lights on at all? Tilt light? Coin chute lights? Are those bulbs good?
If you press on the armature of the H relay, do any lights come on?
Trying to figure out if your 120V section is working.
Thanks for all your help. I have pushed every relay on this machine. Nothing happens. I have no lights anywhere. Every bulb is dead. But like I said on occasion I can hit the u relay and it will reset the two drop targets but it sounds like it has way more energy than it should. That’s the only thing that does something. I was checking the 2amp slow blow fuses on the Playfield and felt a good buzz..
Quoted from HowardR:Does it reset when you push the Replay button on the front door?
Quoted from SteamVette:No. It does nothing. Like it’s not even plugged in.
If pushing the Replay button doesn't activate the Start (S) relay,
Inspect and diagnose this circuit with Alligator clip jumper wires
pasted_image (resized).png
https://pinside.com/pinball/forum/topic/gottlieb-big-shot-repair#post-6305153
http://www.planetimming.com/Pinball/troubleshooting/EM%20Troubleshooting.pdf
http://www.pinrepair.com/em/index3.htm#features
Example of a pinsider actually doing this https://pinside.com/pinball/forum/topic/red-baron-tech-question#post-5858156
Hitting the power switch should at least get coin door lights and backglass lights. How are your Jones plugs?
Could you post a pic of you transformer, maybe there’s an issue there?
Quoted from jasonspoint28:Hitting the power switch should at least get coin door lights and backglass lights. How are your Jones plugs?
Could you post a pic of you transformer, maybe there’s an issue there?
I’ll get a photo as soon as I can. I reset all my jones plugs with no luck. No lights at coin door.
Quoted from jasonspoint28:Hitting the power switch should at least get coin door lights and backglass lights. How are your Jones plugs?
Could you post a pic of you transformer, maybe there’s an issue there?
698BF28C-D8DB-4C49-B156-3CDAF17F9381 (resized).jpeg5563A175-010A-4502-986E-DAD6EBDBC233 (resized).jpegQuoted from jasonspoint28:It’s probably just hard to see from the picture, but is this wire connection ok?
[quoted image]
Looks suspect. I'd cut off the end, strip fresh wire, remove old solder on the transformer connectors and resolder.
Power cord could be toast and so could the transformer.
Do you have a multimeter?
Quoted from sfspanky:Looks suspect. I'd cut off the end, strip fresh wire, remove old solder on the transformer connectors and resolder.
Power cord could be toast and so could the transformer.
Do you have a multimeter?
Agreed, that connection looks a bit crusty, also it's a double black wire with only one connected. Perhaps not needed?
That transformer does look a bit toasty. Not sure it's supposed to black and burnt looking, like that but testing would tell if it's functioning properly.
Quoted from homebrood:Agreed, that connection looks a bit crusty, also it's a double black wire with only one connected. Perhaps not needed?
That transformer does look a bit toasty. Not sure it's supposed to black and burnt looking, like that but testing would tell if it's functioning properly.
That black wire is the “hot” and if the other wire was meant to be connected, then the resistance without the other wire being connected would generate heat and fry the power cord wires and transformer over time. Haven’t been in the belly of my Big Hit in forever, but I’ll get in it next Tuesday and report back. My gut tells me if you replace the power cord and transformer, you’ll be back up and running.
You could try plugging in a light fixture into the mechanical board outlet. Flex the pinball machine line cord to try to get the light to go out.
Quoted from pinballdaveh:You could try plugging in a light fixture into the mechanical board outlet. Flex the pinball machine line cord to try to get the light to go out.
The outlet works. I’m able to plug something into that and it comes on.
Quoted from homebrood:Agreed, that connection looks a bit crusty, also it's a double black wire with only one connected. Perhaps not needed?
That transformer does look a bit toasty. Not sure it's supposed to black and burnt looking, like that but testing would tell if it's functioning properly.
Quoted from sfspanky:That black wire is the “hot” and if the other wire was meant to be connected, then the resistance without the other wire being connected would generate heat and fry the power cord wires and transformer over time. Haven’t been in the belly of my Big Hit in forever, but I’ll get in it next Tuesday and report back. My gut tells me if you replace the power cord and transformer, you’ll be back up and running.
They both actually look pretty good. I know looks can be deceiving. But some of my other games look tougher than this one.
I was able to plug into the outlet on the board and it does work.
Perhaps I missed an earlier post..
So....
With a volt meter check the transformer output, (top terminals).
If you have input voltage, (bottom teminals) and no output, then transformer is bad.
Quoted from SteamVette:**update** So I replaced my transformer and my machine powers right up now. As soon as I start a game it goes into tilt mode and ends the game. Both tilt relays look to be operating as they should.
Check all your tilts throughout the machine. One is probably being made or is open. Depending on which tilt it is
When I turn the power switch on, Big Hit is always in “Tilt”. When the replay button is pressed, a switch on AX closes and the Tilt Hold(H) relay is energized and held by a switch on (H). This causes the Tilt light to go out and the playfield lights to come on. Good so far?
Quoted from jasonspoint28:When I turn the power switch on, Big Hit is always in “Tilt”. When the replay button is pressed, a switch on AX closes and the Tilt Hold(H) relay is energized and held by a switch on (H). This causes the Tilt light to go out and the playfield lights to come on. Good so far?
I’m able to play games now. Start sequence all works. Only thing now is ball in play lights don’t work. Snow shoes look to be good and lined up on the brass rivets.
Quoted from SteamVette:I’m able to play games now. Start sequence all works. Only thing now is ball in play lights don’t work. Snow shoes look to be good and lined up on the brass rivets.
Awesome! The ball in play lights go through a switch on the H relay and one on the P (Add ball count unit relay).
65F99876-FD12-47E2-AD18-73924B990B35 (resized).jpegQuoted from jasonspoint28:Awesome! The ball in play lights go through a switch on the H relay and one on the P (Add ball count unit relay).
[quoted image]
Thanks for your help. I have pulled those relays out and checked them like 4
Times. I’ll pull them again. Ha
Quoted from SteamVette:I have pulled those relays out and checked them like 4
Times
Alligator clip jumper wires are a good way to diagnose this kind of problem.
https://pinside.com/pinball/forum/topic/gottlieb-big-shot-repair#post-6305153
http://www.planetimming.com/Pinball/troubleshooting/EM%20Troubleshooting.pdf
http://www.pinrepair.com/em/index3.htm#features
Example of a pinsider actually doing this https://pinside.com/pinball/forum/topic/red-baron-tech-question#post-5858156
Quoted from HowardR:Alligator clip jumper wires are a good way to diagnose this kind of problem.
https://pinside.com/pinball/forum/topic/gottlieb-big-shot-repair#post-6305153
http://www.planetimming.com/Pinball/troubleshooting/EM%20Troubleshooting.pdf
http://www.pinrepair.com/em/index3.htm#features
Example of a pinsider actually doing this https://pinside.com/pinball/forum/topic/red-baron-tech-question#post-5858156
Thanks Howard. I will definitely try the wire jumper first.
Quoted from SteamVette:Thanks for your help. I have pulled those relays out and checked them like 4
Times. I’ll pull them again. Ha
You bet. I like the troubleshooting, it’s like solving a puzzle or mystery. Usually I’m way off, but every now and then I can help find the problem.
I have I believe a similar problem with my Big Hit, score reels will reset, credit wheel counts down correctly, but machine remains in Tilt and games cannot be played, also drop targets don’t reset. In the trail above the “Tilt” issue is discussed, but I don’t see the findings. Could you share what you did to resolve the tilt issue?
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Derby, KS