(Topic ID: 48888)

Centaur Club.....Members Only!


By vster23

6 years ago



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  • 1,033 posts
  • 186 Pinsiders participating
  • Latest reply 26 days ago by Nhpolarbear
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There are 1033 posts in this topic. You are on page 21 of 21.
#1001 3 months ago
Quoted from EvanDickson:

The one at the eject point works too. I don't think it could be a switch issue, since the kick out cool should fire every time in test regardless of switches. Hoping it's u2. Otherwise I guess I'm looking at a broken wire that doesn't look broken, somewhere between board and coil.

Don’t forget the driver board only controls the relay on the solenoid expander. The relay completes the circuit to fire the coil. It’s designed this way because the coil draws too much current and would overload the driver transistor. The relay can handle the extra current so it becomes the “driver”.

With the backbox open and the playfield up, ground the tab of every driver transistor until you find the one that controls the kicker (ignore this if you already know which one it is - sorry, I don’t have the means to look it up right now). Make sure the relay clicks every time you ground the tab. You may have to disconnect the coil to hear it. If that’s good, run the coil test and make sure the relay clicks in every cycle. If it does, then you know your problem is with the high current contacts in the relay, the board connector, or the wiring to the coil. If the relay clicks intermittently during the coil test, then it is driver related.

#1002 3 months ago
Quoted from dothedoo:

Don’t forget the driver board only controls the relay on the solenoid expander. The relay completes the circuit to fire the coil. It’s designed this way because the coil draws too much current and would overload the driver transistor. The relay can handle the extra current so it becomes the “driver”.
With the backbox open and the playfield up, ground the tab of every driver transistor until you find the one that controls the kicker (ignore this if you already know which one it is - sorry, I don’t have the means to look it up right now). Make sure the relay clicks every time you ground the tab. You may have to disconnect the coil to hear it. If that’s good, run the coil test and make sure the relay clicks in every cycle. If it does, then you know your problem is with the high current contacts in the relay, the board connector, or the wiring to the coil. If the relay clicks intermittently during the coil test, then it is driver related.

Oh will try this tonight, the relay doesn't appear on the board schematic. It's only for the kick out solenoid? If yes, then this sounds promising.

#1003 3 months ago
Quoted from EvanDickson:

Oh will try this tonight, the relay doesn't appear on the board schematic. It's only for the kick out solenoid? If yes, then this sounds promising.

Basically, this circuit is a copy of the flipper circuit (sans cabinet switches. )

Yes it’s only for the kick to playfield solenoid since it’s the only coil that cannot be controlled directly by the driver transistor.

#1004 3 months ago
Quoted from dothedoo:

Don’t forget the driver board only controls the relay on the solenoid expander. The relay completes the circuit to fire the coil. It’s designed this way because the coil draws too much current and would overload the driver transistor. The relay can handle the extra current so it becomes the “driver”.
With the backbox open and the playfield up, ground the tab of every driver transistor until you find the one that controls the kicker (ignore this if you already know which one it is - sorry, I don’t have the means to look it up right now). Make sure the relay clicks every time you ground the tab. You may have to disconnect the coil to hear it. If that’s good, run the coil test and make sure the relay clicks in every cycle. If it does, then you know your problem is with the high current contacts in the relay, the board connector, or the wiring to the coil. If the relay clicks intermittently during the coil test, then it is driver related.

This was it, thank you! Just a loose connector on the relay board, didn't even know it was part of the system.

#1005 3 months ago
Quoted from EvanDickson:

This was it, thank you! Just a loose connector on the relay board, didn't even know it was part of the system.

That’s great! Glad you didn’t have to pull any more chips.

#1006 3 months ago

New member here! I love this game! Any leads on a good playfield? Mine is roaches but I will still play it it’s a great game it deserves a new playfield on mine but a proud poppa here!

#1007 87 days ago

My Centaur will sometimes continue to try launching a ball after it's already been launched. Example: You complete all four guardian lanes, and a ball is launched. A couple of seconds after it's launched the game attempts to launch the ball 3 or 4 more times. (You can hear the coil firing, and the sound effect, and see the playfield GI blink.)

I think this happens because the game doesn't see the end of trough switch (switch 33) close when the ball zooms past it on the first launch. Apparently it's programmed to give up after 3 or 4 more launch attempts.

I have adjusted the switch and even replaced it, but it still happens about one in every 10 launches.

This error doesn't add points, but it's annoying, and since it makes the pf GI blink it also blinds the player if the room is dark (which is how Centaur should be played.)

QUESTION: Is this a common error? Does anyone have a Centaur on which this error NEVER happens? If so, I know I should be able to fix it.

Possible cause: The wire actuator on my end of trough switch was replaced at some point, and I think the replacement wire is shorter. This might prevent me from being able to adjust it or bend it into the optimal shape.

And before anyone asks, yes, I've replaced the switch capacitor. Thanks for any feedback you can provide.

#1008 87 days ago

My Centaur II has it too. Haven't tried to find out why yet.

Quoted from RoyGBev:

My Centaur will sometimes continue to try launching a ball after it's already been launched. Example: You complete all four guardian lanes, and a ball is launched. A couple of seconds after it's launched the game attempts to launch the ball 3 or 4 more times. (You can hear the coil firing, and the sound effect, and see the playfield GI blink.)
I think this happens because the game doesn't see the end of trough switch (switch 33) close when the ball zooms past it on the first launch. Apparently it's programmed to give up after 3 or 4 more launch attempts.
I have adjusted the switch and even replaced it, but it still happens about one in every 10 launches.
This error doesn't add points, but it's annoying, and since it makes the pf GI blink it also blinds the player if the room is dark (which is how Centaur should be played.)
QUESTION: Is this a common error? Does anyone have a Centaur on which this error NEVER happens? If so, I know I should be able to fix it.
Possible cause: The wire actuator on my end of trough switch was replaced at some point, and I think the replacement wire is shorter. This might prevent me from being able to adjust it or bend it into the optimal shape.
And before anyone asks, yes, I've replaced the switch capacitor. Thanks for any feedback you can provide.

#1009 87 days ago
Quoted from RoyGBev:

My Centaur will sometimes continue to try launching a ball after it's already been launched. Example: You complete all four guardian lanes, and a ball is launched. A couple of seconds after it's launched the game attempts to launch the ball 3 or 4 more times. (You can hear the coil firing, and the sound effect, and see the playfield GI blink.)
I think this happens because the game doesn't see the end of trough switch (switch 33) close when the ball zooms past it on the first launch. Apparently it's programmed to give up after 3 or 4 more launch attempts.
I have adjusted the switch and even replaced it, but it still happens about one in every 10 launches.
This error doesn't add points, but it's annoying, and since it makes the pf GI blink it also blinds the player if the room is dark (which is how Centaur should be played.)
QUESTION: Is this a common error? Does anyone have a Centaur on which this error NEVER happens? If so, I know I should be able to fix it.
Possible cause: The wire actuator on my end of trough switch was replaced at some point, and I think the replacement wire is shorter. This might prevent me from being able to adjust it or bend it into the optimal shape.
And before anyone asks, yes, I've replaced the switch capacitor. Thanks for any feedback you can provide.

Try the first ball trough switch? I modified the first ball trough switch to a long flat blade style...
It stopped all ball trough read problems; as far as I know.

#1010 87 days ago
Quoted from vec-tor:

Try the first ball trough switch? I modified the first ball trough switch to a long flat blade style...
It stopped all ball trough read problems; as far as I know.

Possible part number that you have replaced with?

#1011 87 days ago
Quoted from Antennaejim:

Possible part number that you have replaced with?

Try an outhole style switch that has a light weight actuator...
Or a Williams micro drop target style switch...
You have to modify to fit and you have to drill new mounting holes in the bracket?
I believe... it has been many years sense I have done it to a Bally Centaur.

#1012 87 days ago

Is there a current part available for the queens chamber drop target assembly drop target stop from the housing. The part I am looking for is the square metal piece with a screw coming through it, attached to the spring in the picture. This piece stops the target from over extending on the playfield. Thanks in advance!

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#1013 87 days ago
Quoted from Antennaejim:

Is there a current part available for the queens chamber drop target assembly drop target stop from the housing. The part I am looking for is the square metal piece with a screw coming through it, attached to the spring in the picture. This piece stops the target from over extending on the playfield. Thanks in advance![quoted image]

You are going to have to find the part or have the part reproduced.

#1014 87 days ago
Quoted from vec-tor:

You are going to have to find the part or have the part reproduced.

I would need a part number to find it anywhere. And it’s not listed in the manual. Does anyone happen to have a part number?

#1015 87 days ago

After letting one go in 2013 ...
Have been looking for one ever since.
Unsure If it has been sited for a long time as it had a $1 coin in the coin box dated 2001...
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#1016 87 days ago
Quoted from Antennaejim:

I would need a part number to find it anywhere. And it’s not listed in the manual. Does anyone happen to have a part number?

Bally Nut & Spring Bracket
( Left Hand )
P-7939-1
Good luck.

#1017 87 days ago
Quoted from vec-tor:

Bally Nut & Spring Bracket
( Left Hand )
P-7939-1
Good luck.

Thank you!

#1018 86 days ago

Any one know the part number(s) for the lock / cam / mechanism for the backbox? I have none of it, which bugs me a bit, and the manual doesn't identify parts besides electronic components.

#1019 86 days ago

If you have the part number. Check with Pinball resource. He has some things. All by part number.

#1020 84 days ago
Quoted from Fortytwo:

If you have the part number. Check with Pinball resource. He has some things. All by part number.

Pinball resource normally carry both the left & right bracket, I have enquired about these before. About $11.00 each from memory.

#1021 78 days ago

hey gang it is time for me to order an LED kit for my Centaur.....I have seen several videos of kitted machines but I would like to hear any suggestions from youze guys on who has the best kit or what you suggest?

1 week later
#1022 69 days ago

Anyone seen the new Geico commercials with "Motaur"? Wonder where they got the idea from?

mo-taur (resized).jpg
1 week later
#1023 57 days ago

hey gang does anyone have the files for the home version eeproms that they could send me? I can burn the chips, and I think I have them but if someone already has the patched files that would be easier for me......

#1024 57 days ago
Quoted from Startek2:

ey gang does anyone have the files for the home version eeproms that they could send me? I

PM me your email address and I'll send you what I have. Haven't burned them in a few years so not sure which files you need.

#1025 54 days ago

hey does anyone here have experience with glare free glass on a Centaur? b does it look better to the point it is worth the price?

#1026 53 days ago

I just got the playfield swap completed....feast your eyes on this

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#1027 52 days ago

Damn! That new playfield looks awesome. I need to find some time to do my swap soon too.

#1028 52 days ago

Good move human!!

2 weeks later
#1029 33 days ago

ok one last victory lap for the playfield. the next thing is to rehab the cabinet..... https://m.facebook.com/mark.rogan/videos/10217350832936987/

1 week later
#1030 26 days ago

Shill post: The Classic Pinball Podcast has just dropped their latest episode on Centaur.

#1031 26 days ago

You're not shilling George. Any Centaur owner or future owner will like this episode. =)

#1033 26 days ago

Ok. I’m not. Lots of listeners so far. Thanks folks!

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There are 1033 posts in this topic. You are on page 21 of 21.

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