I have Black Pyramid. I found out today that test port 2 and 4 on my soletdriver board are both 231V DC. What does a high-coltage repair kit come with? Is it the capacitors or the HV transistor?
CALIFORNIAPINBALL, Any reasons why the flipper coils need that very big size Relay on the Solenoid board? 50's pinball games used AC voltages for the flipper coils which others say that AC voltage makes the flipper coils strength is HALF the strength when using DC voltage the flipper coils strength hits the ball harder, any reasons why DC voltage hits the ball harder compared to using AC voltage?
The relay is basically a solenoid with switches. On the solid state machines, the flipper coil is actually 2 coils in one. The one side of the coil powers the initial thrust when the flipper button is engaged. Then the power is switched to the other side of the coil, which allows the flipper to stay up indefinitely if you hold the flipper button pushed in.
Hello, great video, but i have a bally flash gordon with a display problem, when first turned on the machine boots fine and all the displays work but in about a minute or so, they shut off, when checking the voltages at test point 4 i have a constant 230 volts and test point 2 is dialed in at 170 volts, but within a few seconds that voltages starts slowing ramping down and when it gets to 140 volts, the displays drop out, i have disconnected the displays to see if any of them are dragging down the voltage and that did not make a difference, btw the voltage continues to drop to about 100 volts and beyond, any idea as to what would cause that, i could just swap out the solenoid driver board with one from my 8 other machines, except that someone, not me, hacked the connector at j3 and soldered external connectors directly to the solenoid driver board, so it is no longer plug and play
You absolutely have a problem on the solenoid driver board. One of the components is dragging down the voltage at test point (TP) 2. Once the voltage drops below 165 to 170 volts, there is not enough voltage to power the plasma score displays. If the problem was on the display itself, it would blow a fuse. Therefore, I am very confident that your problem is on the solenoid driver board (likely a bad resistor). It is time to fix the hacked connector and swap out a solenoid driver board from one of your other machines. There are companies on the internet that will sell you the parts you need to fix the hacked connector. Good luck and thanks for the message.
You have a short somewhere. Assuming this solenoid (coil) wasn't recently replaced and hooked up incorrectly, the first place I would look is the diode that is between the lugs of the solenoid. Diodes are easy to test with a digital multimeter (DMM). Assuming the diode tests okay, I would trace back the wires to the solenoid driver board. One issue you have to be aware of is that the power wire (+43 volts DC) is daisy chained between other solenoids.
Thanks for this great video! My 1978 Bally Blackjack has a finicky player 3 score display...mostly doesn't work, so I am trying to decide if I should just replace it...Can I do just one new display, or do I need to do the entire backboard?
You can replace just one display if you use one of the original high voltage plasma displays. Most "finicky" score displays that seem to flicker are caused by a cracked solder joint. There are TH-cam videos on how to fix this. Search "Bally score display cracked solder joint".
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Great information in this video. I was excited to see other videos for you like this but noticed this was the only one. 😔
I have Black Pyramid.
I found out today that test port 2 and 4 on my soletdriver board are both 231V DC.
What does a high-coltage repair kit come with? Is it the capacitors or the HV transistor?
All of my score displays too have stopped working.
CALIFORNIAPINBALL, Any reasons why the flipper coils need that very big size Relay on the Solenoid board? 50's pinball games used AC voltages for the flipper coils which others say that AC voltage makes the flipper coils strength is HALF the strength when using DC voltage the flipper coils strength hits the ball harder, any reasons why DC voltage hits the ball harder compared to using AC voltage?
The relay is basically a solenoid with switches. On the solid state machines, the flipper coil is actually 2 coils in one. The one side of the coil powers the initial thrust when the flipper button is engaged. Then the power is switched to the other side of the coil, which allows the flipper to stay up indefinitely if you hold the flipper button pushed in.
Hello, great video, but i have a bally flash gordon with a display problem, when first turned on the machine boots fine and all the displays work but in about a minute or so, they shut off, when checking the voltages at test point 4 i have a constant 230 volts and test point 2 is dialed in at 170 volts, but within a few seconds that voltages starts slowing ramping down and when it gets to 140 volts, the displays drop out, i have disconnected the displays to see if any of them are dragging down the voltage and that did not make a difference, btw the voltage continues to drop to about 100 volts and beyond, any idea as to what would cause that, i could just swap out the solenoid driver board with one from my 8 other machines, except that someone, not me, hacked the connector at j3 and soldered external connectors directly to the solenoid driver board, so it is no longer plug and play
You absolutely have a problem on the solenoid driver board. One of the components is dragging down the voltage at test point (TP) 2. Once the voltage drops below 165 to 170 volts, there is not enough voltage to power the plasma score displays. If the problem was on the display itself, it would blow a fuse. Therefore, I am very confident that your problem is on the solenoid driver board (likely a bad resistor). It is time to fix the hacked connector and swap out a solenoid driver board from one of your other machines. There are companies on the internet that will sell you the parts you need to fix the hacked connector. Good luck and thanks for the message.
What would cause the center thumper coil to start smoking/melting on a Bally frontier pinball? Thank you
You have a short somewhere. Assuming this solenoid (coil) wasn't recently replaced and hooked up incorrectly, the first place I would look is the diode that is between the lugs of the solenoid. Diodes are easy to test with a digital multimeter (DMM). Assuming the diode tests okay, I would trace back the wires to the solenoid driver board. One issue you have to be aware of is that the power wire (+43 volts DC) is daisy chained between other solenoids.
Thanks for this great video! My 1978 Bally Blackjack has a finicky player 3 score display...mostly doesn't work, so I am trying to decide if I should just replace it...Can I do just one new display, or do I need to do the entire backboard?
You can replace just one display if you use one of the original high voltage plasma displays. Most "finicky" score displays that seem to flicker are caused by a cracked solder joint. There are TH-cam videos on how to fix this. Search "Bally score display cracked solder joint".
@@CaliforniaPinball Thank you! I will look!