(Topic ID: 48888)

Centaur Club.....Members Only!

By vster23

8 years ago


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There are 1383 posts in this topic. You are on page 23 of 28.
#1101 1 year ago

Go to pinwiki and follow the instructions for a bally machine - check power board, followed by driver board, followed by MPU and lamp driver board.

There’s too many unknowns right now - power supply voltages and old battery on the MPU need to be addressed.

#1102 1 year ago

Bottom right board (mpu, I think) flashes as follow:
1
123
1
Then turns off

Seems like there's delays between some blinks.

Top left board, green led stays green no blink or flash.

Williams machines goes into 04 mode when there's a battery problem. I don't know what Bally's do.

#1103 1 year ago
Quoted from trk12fire:

Bottom right board (mpu, I think) flashes as follow:
1
123
1
Then turns off
Seems like there's delays between some blinks.
Top left board, green led stays green no blink or flash.
Williams machines goes into 04 mode when there's a battery problem. I don't know what Bally's do.

Bottom right is the sound board. top left is MPU. check out the pinwiki sight and follow the flash protocol: https://pinwiki.com/wiki/index.php?title=Bally/Stern#LED_locked_on

#1104 1 year ago
Quoted from trk12fire:

Just picked up this Centaur. It's my first Bally. I've got power to the Gi and a single orange dot on each display. The game isn't booting. Before I drive in to deep, I wanted to ask a couple questions. There is some corrosion on the battery. What are the signs and symptoms that it's bad? What do you replace it with? I checked all my fuses. All appear good and I replaced most of them anyway. So, I'm wondering if the power board is bad.
Thank you
[quoted image][quoted image][quoted image]

Remove battery. No doubt.

Replace it with NVRAM. You’ll never look back, and will never have a sleepless night that your boards are getting trashed from acid damage.

#1105 1 year ago

Did a swap both ways and the only thing was the lane change switch needed to be redone

#1106 1 year ago

"How many flashes on the mpu led when you turn the game on?"
The LED is locked on. So not even the first flash...

#1107 1 year ago
Quoted from Tallon:

Did a swap both ways and the only thing was the lane change switch needed to be redone

Not if you were swapping from a Centaur II style cab to a standard Bally Cab it wasn't. The display harness for example is way too short to be used on a standard insert panel. Not to mention the splitting of the controlled lamps on a CII cabinet between the mini backglass and the display panel. Depending on how you mount the boards in the classic bally head the rest of the harness can be made to work but a couple things need to be extended to have a clean install.

#1108 1 year ago
Quoted from vec-tor:

"How many flashes on the mpu led when you turn the game on?"
The LED is locked on. So not even the first flash...

Yes, no first flash, just stuck on. The board doesn't look that bad, but I think it's beyond the battery. It probably needs a chip or 2. Manual tells me to replace the board if the light is solid. I could probably tinker with it, but I was to excited and ordered a new board for 200 bucks. Chips and Nvram would have costed 70 bucks with fingers crossed. I figured I'd start out with a good foundation and put my time into other thing or boards.

#1109 1 year ago

Can't afford 1000.00 on a CPR right now. Anyone have experience with the clear play field protectors?

#1110 1 year ago

Just joining your club. Mine's on the way now hopefully.

Can't wait to see and play it, think it will sit nicely amongst my Sorcerer and Lost World to start.

#1111 1 year ago
Quoted from Xenon75:

Not if you were swapping from a Centaur II style cab to a standard Bally Cab it wasn't. The display harness for example is way too short to be used on a standard insert panel. Not to mention the splitting of the controlled lamps on a CII cabinet between the mini backglass and the display panel. Depending on how you mount the boards in the classic bally head the rest of the harness can be made to work but a couple things need to be extended to have a clean install.

Thought maybe I misread the post. Methos asked if anyone has swapped a centaur 2 playfield into a centaur one cabinet. That’s exactly what I did. It is only the lane change that needs to be changed in this instance. He didn’t ask about doing a conversion to a “bally style” cabinet. Some of us got a centaur 2 years ago and then recently acquired a cantaur 1 after doing our playfield swap already on the centaur 2. In this instance we don’t want to do another swap just to get the good playfield in the good cabinet.

7427A3AE-0E20-4496-A9F1-84A4F71A4B9C (resized).jpeg
#1112 1 year ago

Centaur (original) owner here. Just gotta say there's something cool about the Centaur II cabinet. I dig the red displays, especially.

I think over time you'll see original Centaur II machines become harder to find as people choose to convert cabinets. I can imagine there may not be many survivors out there to begin with.

Centaur II and Eight Ball Deluxe LE would look really good next to each other.

#1113 1 year ago
Quoted from Tallon:

Thought maybe I misread the post. Methos asked if anyone has swapped a centaur 2 playfield into a centaur one cabinet. That’s exactly what I did. It is only the lane change that needs to be changed in this instance. He didn’t ask about doing a conversion to a “bally style” cabinet. Some of us got a centaur 2 years ago and then recently acquired a cantaur 1 after doing our playfield swap already on the centaur 2. In this instance we don’t want to do another swap just to get the good playfield in the good cabinet.
[quoted image]

Love Flash Gordon. Always felt it was a nice companion piece to Centaur. I imagine you think the same?

#1114 1 year ago

Just started working on this machine. It's taking awhile to get used to Bally. I had to remove the play field and backbox to get it downstairs. It was a little more difficult than the Williams machines I'm used to, but at the same time it seems built better. Additionally, I can't believe the technology in this game for 1981. Excited to start playing

#1115 1 year ago
Quoted from Tallon:

Thought maybe I misread the post. Methos asked if anyone has swapped a centaur 2 playfield into a centaur one cabinet. That’s exactly what I did. It is only the lane change that needs to be changed in this instance. He didn’t ask about doing a conversion to a “bally style” cabinet. Some of us got a centaur 2 years ago and then recently acquired a cantaur 1 after doing our playfield swap already on the centaur 2. In this instance we don’t want to do another swap just to get the good playfield in the good cabinet.
[quoted image]

I have a C2 and a C1. The C2 has a better pf, and I want to switch the pfs and sell the C2. So it would just be the pf (and harnesses) that would be switched.

#1116 1 year ago
Quoted from Methos:

I have a C2 and a C1. The C2 has a better pf, and I want to switch the pfs and sell the C2. So it would just be the pf (and harnesses) that would be switched.

Shoot me a pm. I’ll see if I can find my pics and show you the connector that needs to be fixed

#1117 1 year ago
Quoted from SunnRAT:

Love Flash Gordon. Always felt it was a nice companion piece to Centaur. I imagine you think the same?

I think FG is the meanest game I have played. Maybe BSD but Flash Gordon makes you get better at nudging the table you it eats you alive. In turn it helps with the ball return lanes on centaur

#1118 1 year ago
Quoted from SunnRAT:

Just gotta say there's something cool about the Centaur II cabinet. I dig the red displays, especially.

Agreed, the red displays are a nice touch. And the cabinet style of Centaur II screams 80s, in a gritty B-movie kind of way. Something that I'm a bit of a sucker for. It scores high on my 'so bad it's good' scale.

#1119 1 year ago
Quoted from Tallon:

I think FG is the meanest game I have played. Maybe BSD but Flash Gordon makes you get better at nudging the table you it eats you alive. In turn it helps with the ball return lanes on centaur

Funny, I’ve got Centaur, Flash Gordon, and BSD right next to each other. Lots of nudging in Flash Gordon and BSD, but FG wins out ... it’s brutal, and you get quite a workout. Centaur gets a fair bit of nudging for the outlanes, otherwise not much need to nudge.

#1120 1 year ago
Quoted from Xenon75:

Just did the swap from Centaur II to a Centaur cab. You need to create a wiring harness for the lamp insert board/displays or modify an existing harness. Its time consuming but not overly difficult - all of the info is in the schematic to match the wire colors to an existing harness or build your own.

I’ll start with apologies to Xenon. Sorry bro, I was not completely correct and you do need to change 2 connectors on the centaur 1 to centaur 2 swap.

For those at home, the playfields and harness from the playfield is exactly the same except they changed from a .62 connector to a .93 on the switch and lamp connector inside the backbox. Also on the game I did, they changed pins (in the manual too so I don’t think it was just an assembly mistake) for the lane change input from the flipper stacks in the cabinet. Some can fact check the connector sizes cause I’m going off memory and a couple pics. The top pic is centaur 2 and the bottom is centaur 1

9828260F-13B0-4CF8-9C2C-E611FDE0C764 (resized).jpegC449B09F-6600-4388-8B44-E833D3985CDA (resized).jpeg

#1121 1 year ago

I got my Centaur to boot and play a game. My biggest problem now is I have no background sound. The speech and play field sounds are ok, but no sound in the background. I've adjusted the 3 turn settings, reflowed pins to the Say it again board and Squawk and Talk. I've also started replacing a few capacitors. I'm thinking 1 of the 3 sounds chips are bad. Any ideas are appreciated?

#1122 1 year ago

Never mind, found the solution to the problem in setting. Sweet! The easiest fix there is, haha.

#1123 1 year ago

Hi group! Could anybody be so kind to take a picture of their J4 connector for the MPU? I'm repinning mine, one of the old pins fell out, and now I don't know where it's supposed to go. :/

Many thanks in advance!!

15966484635525302697687564620575 (resized).jpg

#1124 1 year ago

Hi Jappie, the wire color codes are in the schematics on the "Wiring Diagram Backbox" page.

I hope the below helps explains how the wire color codes are listed: specifically the gray wire goes to pin 15.

Centaur_MPU_Wiring.jpg

#1125 1 year ago
Quoted from Quench:

Hi Jappie, the wire color codes are in the schematics on the "Wiring Diagram Backbox" page.
I hope the below helps explains how the wire color codes are listed: specifically the gray wire goes to pin 15.
[quoted image]

I had been looking for this info, but must have missed it somehow.

Thanks much Quench! Problem solved.

#1126 1 year ago

so has anyone experimented with pin stadium style led mods on their Centaurs? I would love to see some pics of people led playfields!

#1127 1 year ago
Quoted from Startek2:

so has anyone experimented with pin stadium style led mods on their Centaurs? I would love to see some pics of people led playfields!

No, but I just ordered 2 flood lights from Comet to brighten up the play field and hopefully remove some of the back glass glare.

#1128 1 year ago

aye matey the glare is big on centaur....i sucked it up and put on a sheet of voodoo glass....i think it helps a bit...not perfect but better...

1 week later
#1129 1 year ago

Haven't turned my Centaur on in a long while, hoping someone can help me with some issues.

When I press the physical test button on the sound board, the sound test plays correctly. But I'm not getting any sound at all while playing the game, or in the self test menu. I have an aftermarket SIA board installed, and the jumpers are all set up appropriately. No other issues appear in the self test menu, ball trough switches all seem to be registering correctly.

The outhole kicker and orbs target reset solenoids aren't working as well, but I assume that is a separate issue?

Any insight appreciated, thanks!

#1130 1 year ago
Quoted from Largemann:

Haven't turned my Centaur on in a long while, hoping someone can help me with some issues.
When I press the physical test button on the sound board, the sound test plays correctly. But I'm not getting any sound at all while playing the game, or in the self test menu. I have an aftermarket SIA board installed, and the jumpers are all set up appropriately. No other issues appear in the self test menu, ball trough switches all seem to be registering correctly.
The outhole kicker and orbs target reset solenoids aren't working as well, but I assume that is a separate issue?
Any insight appreciated, thanks!

Did you reseated the connectors to the game?

#1131 1 year ago

Reseated every back box connector with no change. I should also mention setting 18 is set correctly at 03, no sound plays at all outside of the sound board test.

#1132 1 year ago
Quoted from Largemann:

Reseated every back box connector with no change. I should also mention setting 18 is set correctly at 03, no sound plays at all outside of the sound board test.

Do all the solenoids work correctly?
The snd board uses the same drive lines.

#1133 1 year ago

The outhole kicker and orbs target reset solenoids aren't working, seems they may be related after all. I looked at the solder joints on the sound board and they look good, I believe I reflowed them years ago. Could you point me in the right direction to start troubleshooting?

#1134 1 year ago

1) Check cold solder joints to the voltage/solenoid board.
--- I have seen bad transistor connections.
---------------------------------------------------------------
2) Check continuity:
CPU---Volt/Sol board --S&Q
A4J4-1 to A3J4-3 to A14J1-4
A4J4-2 to A3J4-4 to A14J1-3
A4J4-3 to A3J4-5 to A14J1-2
A4J4-4 to A3J4-6 to A14J1-1
*
A4J4-10 to A3J4-7 to A14J1-8

#1135 1 year ago
Quoted from Tallon:

For those at home, the playfields and harness from the playfield is exactly the same except they changed from a .62 connector to a .93 on the switch and lamp connector inside the backbox. Also on the game I did, they changed pins (in the manual too so I don’t think it was just an assembly mistake) for the lane change input from the flipper stacks in the cabinet. Some can fact check the connector sizes cause I’m going off memory and a couple pics. The top pic is centaur 2 and the bottom is centaur 1

Centaur (1) connectors are indeed .062" pins. However, the two connectors Centaur 2 are .084". One other difference I also came across with a C1/2 swap is a 5 or 6 pin connector. It is a 3x2 connector on one and a 5(or 6)x1 on the other. ..or at least it was on this C1 pf into a C2 cab.
I have everything completed on this swap except for the lane change and am still having trouble finding the answer there, although I'm sure I read the answer somewhere here on PS so I'll keep digging.

#1136 1 year ago
Quoted from mr2xbass:

Centaur (1) connectors are indeed .062" pins. However, the two connectors Centaur 2 are .084". One other difference I also came across with a C1/2 swap is a 5 or 6 pin connector. It is a 3x2 connector on one and a 5(or 6)x1 on the other. ..or at least it was on this C1 pf into a C2 cab.
I have everything completed on this swap except for the lane change and am still having trouble finding the answer there, although I'm sure I read the answer somewhere here on PS so I'll keep digging.

I have Thursday off. I go downstairs and go digging in the Centaurs and see where it went. Sorry, I thought you got it already.

#1137 1 year ago

Solved! With the combination of tracing down the path of all questionable wires point-to-point and from this Bally Centaur II Tech Guide from inkochnito
http://www.pinballrebel.com/pinball/cards/Tech_Charts/Bally_Centaur_II_Tech_Chart.pdf

Looking at this guide, I realized the C2 schematics I have (a print off of the one available on IPDB) is actually a C1 manual. Yes, THE C2 SCHEMATICS ON IPDB ARE FROM C1. If anyone has an original hard copy of a the C2 schematics, could you please confirm.

What gave it away for me is in the switch matrix chart. On ink's chart, the Returns listed for C2 have designations for "A4J2" and "A4J3(not used)"; on the IPDB available schematics, the only designations are for A4J2.

#1138 1 year ago
Quoted from vec-tor:

1) Check cold solder joints to the voltage/solenoid board.
--- I have seen bad transistor connections.
---------------------------------------------------------------
2) Check continuity:
CPU---Volt/Sol board --S&Q
A4J4-1 to A3J4-3 to A14J1-4
A4J4-2 to A3J4-4 to A14J1-3
A4J4-3 to A3J4-5 to A14J1-2
A4J4-4 to A3J4-6 to A14J1-1
*
A4J4-10 to A3J4-7 to A14J1-8

Thanks for the detailed help, while preparing to dive deeper into the board, I reseated the connectors one more time and turns out that was it after all. Thanks again!

2 weeks later
#1139 1 year ago

Hello,
I'm hoping someone can help me figure out the voice / background sound adjustment ratio. The voice is a little louder than I want it to be and would like to turn up the background sound. Williams sound boards have a little wheel you turn to adjust this feature, but the 2 wheels on Centaur don't seem to be doing much. I know one of them is for an echo sound, but I don't notice anything changing. I'm wondering if I have a problem or the voice / background sound is somewhere in the settings menu.

#1140 1 year ago

Hey folks! Joining the party, well I've had my Centaur for a year and a half, so I've been here in spirit. I looked for a Centaur for three years until one fell into my lap. A friend called new years morning 2019, and said, you still want mine? I said, hell yes! Two days later I had a nice Centaur! Thanks Jay.

Message from the Freeeek Kingdom.

20200920_140316 (resized).jpg20200920_141032 (resized).jpg

#1141 1 year ago
Quoted from trk12fire:

Hello,
I'm hoping someone can help me figure out the voice / background sound adjustment ratio. The voice is a little louder than I want it to be and would like to turn up the background sound. Williams sound boards have a little wheel you turn to adjust this feature, but the 2 wheels on Centaur don't seem to be doing much. I know one of them is for an echo sound, but I don't notice anything changing. I'm wondering if I have a problem or the voice / background sound is somewhere in the settings menu.

Fixed it, I found another 2 volume knobs that were hidden behind some wires. Now everything sounds great, except some of the speech is missing. My top rollover switches just say human (instead of bad human or something like that), when rolling over a already lit switch. It doesn't say 2X, 3X bonus when completing. Also, when you complete all ORBs it doesn't say anything. I'm starting to wonder if I have an old sound ROM.

#1142 1 year ago

Jeez! Sorry about those awful pics, this stupid phone just cant handle LEDS, ug! Gotta buy a nice REAL camera.

Apologies from the Freeeek Kingdom.

#1143 1 year ago
Quoted from trk12fire:

Fixed it, I found another 2 volume knobs that were hidden behind some wires. Now everything sounds great, except some of the speech is missing. My top rollover switches just say human (instead of bad human or something like that), when rolling over a already lit switch. It doesn't say 2X, 3X bonus when completing. Also, when you complete all ORBs it doesn't say anything. I'm starting to wonder if I have an old sound ROM.

Go into the speech test to see if those same words are missing

#1144 1 year ago
Quoted from pincoin:

Go into the speech test to see if those same words are missing

Yes the same words are missing in speech test. Last night the background sound and speech became distorted, then went almost completely out. I can barley hear anything now. Additionally, I've reflowed the pins on both sound boards and replaced the larger Caps.
My guess is I need to replace the Roms.

#1145 1 year ago

I've never had to replace sound Roms before, so I'm not sure what the signs/symptoms are.

#1146 1 year ago

If you know of anyone who wants to join the club I have a Centaur II in the market

Archived after 28 days
1398 views
Sold for $ 2,500
Contributed to Pinside
Machine - For Sale
Centaur II Archived
Partially shopped/refurbished “Selling a fully working recently shopped Centaur II. The playfield was torn down and cleaned and waxed. Repopulated with a new rubber ring kit and balls. The game is plug and play....”
2020-09-12
Oakdale, NY
2,500 (Firm)

#1148 1 year ago

hey guys I have been busy optimizing the features on my Centaur and now I need to get these gates correct. Iknow that the farther in, the more likely you get the rebound to the gate but I am wondering if anyone in here has spent much time studying these and might have some suggestions? I almost want to make some kind of slider to test it....what say yall? as a side note, this picture was taken with the voodoo glass still on it....pretty good aye?

gate (resized).jpg

#1149 1 year ago
Quoted from Startek2:

Iknow that the farther in, the more likely you get the rebound to the gate

I don't think the posts have that much wiggle room. But I would say, the closer the post is toward the gate, the more likely the ball is to make contact with them, true. But that doesn't necessarily mean more likely to pass through the gate. Too far in, and the ball will bounce more "up" and slow down than "over and through the gate". I'd think you might find more variation if you tried switching from individual rings on the red posts to one ring around both. The slightly thicker diameter band would give a different bounce. Would it cause the ball to bounce through more or less often? I don't know.

1 week later
#1150 1 year ago

Just acquired a Centaur from Europe
And working in getting power converted
Found this inside the cab and have to say never seen this before

Any one know what this is for or how to make it
Work for 110 volts instead of 220 v ?

Or can I even eliminate this transformer ?

C78E06DC-6791-486A-A5B0-7968222EA08B (resized).jpegF7497024-161F-4011-9714-8573A60DE58A (resized).jpeg
There are 1383 posts in this topic. You are on page 23 of 28.

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