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**What Is The Quick Draw Game And How Does It Work?**

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The Quick Draw Game, often associated with vintage electromechanical (EM) pinball machines, involves a start-up sequence initiated by inserting a coin or pressing the start button. Need expert guidance on EM pinball machines, or any Polar product? At polarservicecenter.net, we provide comprehensive support and resources to ensure your game runs smoothly. This includes troubleshooting, repair tips, and detailed information on the start-up sequence for various models. Our goal is to help you maintain and enjoy your devices, offering solutions and insights for optimal performance. Contact us for tailored assistance.

1. What Is A Quick Draw Game Start-Up Sequence (1975-1978)?

A quick draw game start-up sequence (1975-1978) in electromechanical (EM) pinball machines typically involves a series of automated steps initiated when a player inserts a coin or presses the start button. These steps prepare the game for play by resetting scoring mechanisms, advancing player units, and ensuring the ball is properly positioned for the first turn.

The start-up sequence from 1975 to 1978 introduced a change in multi-player games. The reset bank, a common feature in earlier EM pinball machines, was replaced with Ax (reset control), Bx (last ball), and sometimes Cx/Dx relays, along with a coin stepper unit. Single-player games received just an Ax relay. Almost every Gottlieb EM game with a reset bank has an “S” start relay. This relay, when activated by the coin door start button, triggers the game’s start-up sequence.

1.1 How Does The “S” Start Relay Work?

The “S” start relay locks itself on via its own switch, initiating the score motor to run.

Inserting a coin or pressing the coin door start button activates the “S” (start) relay. The start relay will lock on from its own switch and starts the score motor running. The “S” relay and the score motor increment the total play meter.

1.2 What Does The Coin Unit Do In A 4-Player Game?

The coin unit decrements four times to the home (zero) position and then advances to the 1-player position.

On a 4-player game, the coin unit (next to the chime box) will decrement four times to the home (zero) position, and then kick up one position (to the 1 player position). If players 1 & 4 are lit on the backglass, the coin unit is not stepping up from the zero to one player position.

1.3 How Does The “S” Relay Energize The Ax Relay?

The “S” relay energizes the Ax relay through the Bx (Last Ball) relay (sometimes), but always through a switch on the “S” relay, “U” relay, and score motor switch at 2C.

The “S” relay energizes the Ax relay through the Bx (Last Ball) relay (sometimes), but always thru a switch on the “S” relay, “U” relay, and score motor switch at 2C. This should energize the Ax relay. The “R” hold relay pulls in and stays in, this turns off power to the Game Over relay (which stays energized when a game is finished).

1.4 What Happens With The Player Unit In A 4-Player Game?

The player unit in the backbox increments until it reaches the Z1 position. The player unit stops and the Z1 relay in the backbox energizes. The score motor resets the player 1&2 score reels through the Z1 relay. When all eight score reels are at “zero”, the Z1 relay de-energizes and a normally closed switch on Z1 allows the player control unit to increment to the Z2 position.

On a 4-player game, the Player Unit in the backbox increments until it reaches the Z1 position. The Player Unit stops and the Z1 relay in the backbox energizes. The score motor resets the player 1&2 score reels through the Z1 relay. When all eight score reels are at “zero”, the Z1 relay de-energizes and a normally closed switch on Z1 (very top switch, looks un-natural) allows the player control unit to increment to the Z2 position. The player unit stops and the Z2 relay in the backbox energizes. The score motor resets the player 3&4 score reels through the Z2 relay. When all eight score reels are at “zero”, the Z2 relay de-energizes and a normally closed switch on Z2 allows the player control unit to increment to the “home” position (this is the “player 1, ball 1” position). On a 4-player game there is a player unit switch stack for each player. This controls which set of score reels will score in the game.

1.5 What Happens With The Player Unit In A 2-Player Game?

In a 2-player game, there are no Z1 and Z2 relays. Instead, the player unit uses two switch stacks (which would be the player 3 and player 4 stacks) and the score motor to reset all the score reels, instead of the Z1/Z2 relays and the score motor.

On a 2-player game there are no Z1 and Z2 relays. Instead the player unit uses two switch stacks (which would be the player3 and player4 stacks) and the score motor to reset all the score reels, instead of the Z1/Z2 relays and the score motor.

1.6 What Does The Player Unit Do At The “Home” Position?

The player unit is now at the “home” position (“player 1, ball 1” position). This is the P5A and P5B switches on the player unit, which is the switch stack closest to the backglass with only 2 switches. This causes the Ax relay to reset and the bonus unit to reset (if the game has a bonus unit). Often the P5A and P5B switches are dirty/mis-adjusted which will not let the score motor stop running.

Player unit is now at the “home” position (“player 1, ball 1” position). This is the P5A and P5B switches on the player unit, which is the switch stack closest to the backglass with only 2 switches. This causes the Ax relay to reset and the bonus unit to reset (if the game has a bonus unit). Often the P5A and P5B switches are dirty/mis-adjusted which will not let the score motor stop running.

1.7 What Is The Function Of The “O” Relay?

If the ball is in the outhole, the “O” relay activates kicking the ball to the shooter lane. The “O” relay will not activate unless the bonus unit (if the game has one) is reset to zero (there is a bonus unit zero position switch).

If the ball is in the outhole, the “O” relay activates kicking the ball to the shooter lane. Note: the “O” relay will not activate unless the bonus unit (if the game has one) is reset to zero (there is a bonus unit zero position switch).

1.8 What Role Does The Trough Switch Play?

The ball passes over a trough switch as it is kicked from the outhole, which de-energized the “first ball” relay. Now the game will score. If this switch is closed after the “first ball” relay is de-energized, it will advance the player unit.

The ball passes over a trough switch as it is kicked from the outhole, which de-energized the “first ball” relay. Now the game will score. If this switch is closed after the “first ball” relay is de-energized, it will advance the player unit.

2. What Are The Common Issues With Quick Draw Game Pinball Machines?

Common issues with quick draw game pinball machines often involve the start-up sequence, scoring mechanisms, and ball release systems, primarily due to their electromechanical nature. polarservicecenter.net offers resources and support to address these issues, ensuring your machine operates reliably. We understand the nuances of these vintage machines and provide expert guidance for troubleshooting and maintenance.

2.1 How Do I Troubleshoot Start-Up Sequence Problems?

To troubleshoot start-up sequence problems, check the “S” relay, coin unit, and associated switches.

  1. Check the “S” Relay: Ensure the “S” (start) relay activates when you insert a coin or press the start button. If it doesn’t, the relay itself may be faulty or the activating switch may be dirty or misaligned.
  2. Inspect the Coin Unit: For multi-player games, verify that the coin unit decrements to the home position and then steps up to the 1-player position. If it doesn’t step correctly, the unit may need cleaning or adjustment.
  3. Verify the Ax Relay: Make sure the Ax relay energizes after the “S” relay is activated. This can be checked by confirming that the Bx relay (if present) and the switches on the “S” relay, “U” relay, and score motor switch at 2C are functioning correctly.
  4. Check the Player Unit: For 4-player games, ensure the Player Unit in the backbox increments to the Z1 and Z2 positions, and that the Z1 and Z2 relays energize and de-energize correctly as the score reels reset. For 2-player games, verify that the player unit uses the appropriate switch stacks to reset the score reels.
  5. Ensure the “O” Relay Functions: If the ball is in the outhole, confirm that the “O” relay activates to kick the ball to the shooter lane. Check that the bonus unit (if present) is reset to zero, as the “O” relay won’t activate unless the bonus unit is at zero.
  6. Check the Trough Switch: Verify that the ball passing over the trough switch de-energizes the “first ball” relay, allowing the game to score. If this switch is closed after the “first ball” relay is de-energized, it can cause the player unit to advance prematurely.

2.2 What Causes Scoring Mechanism Failures?

Scoring mechanism failures often result from dirty or misaligned switches, faulty relays, or issues with the score motor.

  1. Dirty or Misaligned Switches:
    • Problem: Over time, switches can accumulate dirt and grime, leading to poor electrical contact. Misalignment can also prevent switches from closing or opening properly.
    • Solution: Clean the switches using a contact cleaner and a small brush. Gently adjust the switch contacts to ensure they align correctly when activated.
  2. Faulty Relays:
    • Problem: Relays can fail due to burnt contacts or coil failure.
    • Solution: Inspect the relay contacts for signs of burning or pitting. If the contacts are damaged, clean them with a fine file or replace the relay. Use a multimeter to test the coil for continuity. If the coil is open, replace the relay.
  3. Score Motor Issues:
    • Problem: The score motor is responsible for many game functions, including scoring. If the motor is not running smoothly or is stopping intermittently, it can cause scoring problems.
    • Solution: Check the score motor for lubrication. Apply a light oil to the motor bearings. Also, inspect the motor switches for dirt or misalignment. Clean and adjust as necessary.
  4. Score Reel Problems:
    • Problem: The score reels themselves can malfunction, leading to incorrect scoring.
    • Solution: Check the score reels for physical damage or binding. Clean and lubricate the reel mechanisms. Inspect the score reel switches for proper operation.
  5. Wiring Issues:
    • Problem: Loose or broken wires can disrupt the scoring circuits.
    • Solution: Inspect all wiring connections for tightness and continuity. Repair any broken wires and ensure connections are secure.
  6. Diode Failures:
    • Problem: Diodes are used in some scoring circuits to prevent back voltage. A failed diode can cause erratic scoring.
    • Solution: Use a multimeter to test diodes for forward and reverse bias. Replace any failed diodes.
  7. Capacitor Issues:
    • Problem: Capacitors can dry out or fail, causing issues with the timing and operation of scoring circuits.
    • Solution: Replace any suspect capacitors with new ones of the same value.

2.3 Why Isn’t The Ball Releasing Properly?

Improper ball release can stem from issues with the “O” relay, bonus unit, or trough switch.

  1. Check the “O” Relay:
    • Problem: The “O” relay is responsible for kicking the ball from the outhole to the shooter lane. If this relay isn’t working, the ball won’t release.
    • Solution: Ensure the “O” relay is activating when the ball is in the outhole. Check the relay’s coil for continuity and the contacts for cleanliness. Clean or replace the relay as needed.
  2. Verify the Bonus Unit:
    • Problem: The “O” relay won’t activate if the bonus unit isn’t reset to zero.
    • Solution: Make sure the bonus unit resets correctly. Inspect the bonus unit’s zero position switch for proper operation. Adjust or clean the switch if necessary.
  3. Inspect the Trough Switch:
    • Problem: The trough switch must function correctly to de-energize the “first ball” relay, allowing the game to score.
    • Solution: Verify that the trough switch is clean and properly adjusted. When the ball passes over the switch, it should de-energize the “first ball” relay.
  4. Check the Ball Trough and Outhole:
    • Problem: Physical obstructions or misalignments in the ball trough or outhole can prevent the ball from releasing properly.
    • Solution: Ensure there are no obstructions in the ball trough or outhole. Check that the ball can move freely through these areas. Adjust any misalignments.
  5. Examine the Shooter Lane Mechanism:
    • Problem: The shooter lane mechanism may have issues that prevent the ball from being properly positioned.
    • Solution: Inspect the shooter lane mechanism for any mechanical problems. Ensure that the ball is correctly positioned in the shooter lane and that the shooter rod is functioning smoothly.
  6. Review the Game Over Relay:
    • Problem: If the game over relay is stuck or malfunctioning, it can prevent the ball from releasing.
    • Solution: Check the game over relay to ensure it is functioning correctly. The relay should de-energize when a new game is started, allowing the ball to release.
  7. Test the Tilt Mechanisms:
    • Problem: Overly sensitive tilt mechanisms can prevent the game from starting or releasing the ball.
    • Solution: Adjust the sensitivity of the tilt mechanisms to prevent false triggering. Ensure that the tilt switches are clean and properly aligned.

3. How Does The Coin Unit Function In A Quick Draw Game?

The coin unit in a quick draw game, particularly in multi-player versions, is crucial for tracking the number of credits available for play. polarservicecenter.net provides detailed explanations and troubleshooting tips for the coin unit, ensuring that this essential component works correctly. Our resources help you understand and maintain the coin mechanism for optimal game operation.

3.1 What Is The Purpose Of The Coin Unit?

The coin unit’s primary purpose is to keep track of credits inserted into the machine, allowing multiple players to participate in a game.

The coin unit’s primary purpose is to keep track of credits inserted into the machine, allowing multiple players to participate in a game. It counts the number of coins inserted and decrements this count as games are played. This unit ensures fair play and proper accounting of credits.

3.2 How Does The Coin Unit Increment And Decrement?

The coin unit increments with each coin inserted and decrements when a game is started, ensuring accurate credit tracking.

  1. Incrementing:
    • Each time a coin is inserted into the machine, it triggers a switch that activates the coin unit.
    • The coin unit advances one step for each coin, increasing the number of credits available.
    • This incrementing mechanism usually involves a ratchet and pawl system that moves the unit to the next position.
  2. Decrementing:
    • When the start button is pressed to begin a game, the coin unit decrements by a set amount.
    • In a 4-player game, the unit may decrement by four steps to return to the zero position and then advance one step to the 1-player position, indicating that one game has been started.
    • The decrementing mechanism ensures that the correct number of credits is used for each game.
  3. Resetting:
    • The coin unit may also have a reset mechanism that returns it to the zero position when necessary.
    • This reset can be triggered by a manual switch or automatically as part of the game’s start-up sequence.
  4. Home Position:
    • The home position is the zero position, where the coin unit starts before any coins are inserted.
    • From this position, the unit increments as coins are added and decrements as games are played, ensuring accurate credit tracking.
  5. Switch Activation:
    • Switches within the coin unit are used to detect the position of the unit and trigger various game functions.
    • For example, a switch may activate when the unit reaches a certain credit level, allowing the game to start.
  6. Maintenance:
    • Regular maintenance is essential to ensure the coin unit functions correctly.
    • This includes cleaning the unit, lubricating moving parts, and adjusting switch contacts.

3.3 What Happens If The Coin Unit Fails To Increment Or Decrement?

If the coin unit fails to increment or decrement, it can disrupt gameplay, requiring troubleshooting and repair.

  1. Check for Mechanical Obstructions:
    • Problem: The coin unit may be jammed or obstructed by dirt, debris, or misaligned parts.
    • Solution:
      • Visually inspect the coin unit for any visible obstructions.
      • Gently clean the unit using a soft brush or vacuum to remove any dirt or debris.
      • Ensure that all moving parts can move freely without any binding.
  2. Inspect the Solenoid:
    • Problem: The solenoid is responsible for moving the coin unit. If it’s not working, the unit won’t increment or decrement.
    • Solution:
      • Check the solenoid for continuity using a multimeter.
      • Ensure that the solenoid is receiving power when the coin is inserted or the start button is pressed.
      • If the solenoid is faulty, replace it with a new one.
  3. Verify the Switches:
    • Problem: The switches within the coin unit detect the position of the unit and trigger the incrementing or decrementing action. If these switches are dirty, misaligned, or faulty, the unit won’t work correctly.
    • Solution:
      • Clean the switch contacts using a contact cleaner and a small brush.
      • Adjust the switch contacts to ensure they align correctly when activated.
      • Use a multimeter to test the switches for continuity.
      • Replace any faulty switches.
  4. Check the Wiring:
    • Problem: Loose or broken wires can disrupt the electrical circuits that control the coin unit.
    • Solution:
      • Inspect all wiring connections for tightness and continuity.
      • Repair any broken wires and ensure connections are secure.
  5. Examine the Ratchet and Pawl Mechanism:
    • Problem: The ratchet and pawl mechanism is responsible for advancing the coin unit. If this mechanism is worn, damaged, or misaligned, the unit may not increment or decrement properly.
    • Solution:
      • Inspect the ratchet and pawl for wear or damage.
      • Clean and lubricate the mechanism.
      • Adjust the pawl to ensure it engages correctly with the ratchet.
      • Replace any worn or damaged parts.
  6. Lubricate Moving Parts:
    • Problem: Lack of lubrication can cause friction and prevent the coin unit from moving freely.
    • Solution:
      • Apply a light lubricant to all moving parts of the coin unit.
      • Be careful not to over-lubricate, as excess lubricant can attract dirt and cause further problems.
  7. Review the Power Supply:
    • Problem: Insufficient voltage can prevent the solenoid from operating correctly.
    • Solution:
      • Use a multimeter to check the voltage supplied to the coin unit.
      • Ensure that the voltage is within the specified range for the solenoid.
      • If the voltage is too low, check the power supply and wiring for any issues.

4. What Role Does The Player Unit Play In Quick Draw Games?

The player unit in quick draw games manages the sequence of players and balls, ensuring each player gets their turn. At polarservicecenter.net, we offer insights into the player unit’s function and maintenance, helping you keep your game running smoothly. Our detailed guides and support resources are designed to assist with troubleshooting and ensuring fair gameplay.

4.1 How Does The Player Unit Advance Between Players?

The player unit advances between players through a series of switches and relays that increment the unit to the next player’s position.

  1. Switches and Relays:
    • Player Unit Switches: The player unit has multiple switch stacks, each corresponding to a player. These switches control which set of score reels will score in the game.
    • Z1 and Z2 Relays (4-Player Games): In 4-player games, the Z1 and Z2 relays are used to reset the score reels for players 1&2 and 3&4, respectively. These relays energize and de-energize to control the score motor and reset the reels.
    • Score Motor: The score motor is a key component that drives the reset of the score reels. It works in conjunction with the Z1 and Z2 relays to ensure the reels are reset to zero.
  2. Advancing Sequence:
    • Start of a Game: When a new game starts, the player unit is typically in the “home” position (player 1, ball 1). The start-up sequence ensures that the unit is correctly positioned.
    • End of a Ball: At the end of each ball, the game checks if the current player has finished their turn. If not, the game prepares for the next ball for the same player.
    • Advancing to the Next Player: If the current player has finished their turn, the player unit advances to the next player. This is usually triggered by a switch on the player unit or a relay that increments the unit to the next position.
    • Player Unit Increment: The player unit increments using a ratchet and pawl mechanism. When the unit advances, it moves to the next set of switches corresponding to the next player.
  3. Home Position:
    • The “home” position (“player 1, ball 1”) is a critical position for the player unit. This is where the unit starts at the beginning of a game.
    • The P5A and P5B switches on the player unit (the switch stack closest to the backglass with only 2 switches) are used to reset the Ax relay and the bonus unit.
  4. 2-Player vs. 4-Player Games:
    • 2-Player Games: In 2-player games, there are no Z1 and Z2 relays. Instead, the player unit uses two switch stacks (typically the player 3 and player 4 stacks) and the score motor to reset all the score reels.
    • 4-Player Games: In 4-player games, the player unit increments through the Z1 and Z2 positions to reset the score reels for all players.
  5. Troubleshooting:
    • Check Switches: Ensure that all switches on the player unit are clean and properly aligned. Dirty or misaligned switches can prevent the unit from advancing correctly.
    • Inspect Relays: Verify that the Z1 and Z2 relays (if present) are functioning correctly. Check the relay coils for continuity and the contacts for cleanliness.
    • Examine the Score Motor: Ensure the score motor is running smoothly and that its switches are clean and properly adjusted.
    • Lubricate Moving Parts: Apply a light lubricant to the moving parts of the player unit to ensure smooth operation.

4.2 What Happens If The Player Unit Gets Stuck?

If the player unit gets stuck, it can halt gameplay, requiring troubleshooting and maintenance to resolve the issue.

  1. Check for Mechanical Obstructions:
    • Problem: The player unit may be obstructed by dirt, debris, or misaligned parts.
    • Solution:
      • Visually inspect the player unit for any visible obstructions.
      • Gently clean the unit using a soft brush or vacuum to remove any dirt or debris.
      • Ensure that all moving parts can move freely without any binding.
  2. Inspect the Solenoid:
    • Problem: The solenoid is responsible for moving the player unit. If it’s not working, the unit won’t advance.
    • Solution:
      • Check the solenoid for continuity using a multimeter.
      • Ensure that the solenoid is receiving power when it should be advancing.
      • If the solenoid is faulty, replace it with a new one.
  3. Verify the Switches:
    • Problem: The switches within the player unit detect the position of the unit and trigger the advancing action. If these switches are dirty, misaligned, or faulty, the unit won’t work correctly.
    • Solution:
      • Clean the switch contacts using a contact cleaner and a small brush.
      • Adjust the switch contacts to ensure they align correctly when activated.
      • Use a multimeter to test the switches for continuity.
      • Replace any faulty switches.
  4. Check the Wiring:
    • Problem: Loose or broken wires can disrupt the electrical circuits that control the player unit.
    • Solution:
      • Inspect all wiring connections for tightness and continuity.
      • Repair any broken wires and ensure connections are secure.
  5. Examine the Ratchet and Pawl Mechanism:
    • Problem: The ratchet and pawl mechanism is responsible for advancing the player unit. If this mechanism is worn, damaged, or misaligned, the unit may not advance properly.
    • Solution:
      • Inspect the ratchet and pawl for wear or damage.
      • Clean and lubricate the mechanism.
      • Adjust the pawl to ensure it engages correctly with the ratchet.
      • Replace any worn or damaged parts.
  6. Lubricate Moving Parts:
    • Problem: Lack of lubrication can cause friction and prevent the player unit from moving freely.
    • Solution:
      • Apply a light lubricant to all moving parts of the player unit.
      • Be careful not to over-lubricate, as excess lubricant can attract dirt and cause further problems.
  7. Review the Power Supply:
    • Problem: Insufficient voltage can prevent the solenoid from operating correctly.
    • Solution:
      • Use a multimeter to check the voltage supplied to the player unit.
      • Ensure that the voltage is within the specified range for the solenoid.
      • If the voltage is too low, check the power supply and wiring for any issues.
  8. Check the Score Motor:
    • Problem: The score motor plays a role in advancing the player unit. If the score motor is not functioning correctly, it can prevent the unit from advancing.
    • Solution:
      • Ensure that the score motor is running smoothly and that its switches are clean and properly adjusted.

4.3 How Do Z1 And Z2 Relays Affect The Player Unit In 4-Player Games?

Z1 and Z2 relays in 4-player games control the resetting of score reels for different players, ensuring proper game sequencing.

  1. Z1 Relay Function:
    • Activation: The Z1 relay energizes when the player unit reaches the Z1 position.
    • Score Reel Reset: When energized, the Z1 relay activates the score motor, which then resets the score reels for players 1 and 2. The score motor runs until all eight score reels are at “zero.”
    • De-energizing: Once all score reels for players 1 and 2 are at zero, the Z1 relay de-energizes.
    • Switch Function: A normally closed switch on the Z1 relay (often located at the very top and appearing “unnatural”) allows the player control unit to increment to the Z2 position after the Z1 relay de-energizes.
  2. Z2 Relay Function:
    • Activation: The Z2 relay energizes when the player unit reaches the Z2 position.
    • Score Reel Reset: When energized, the Z2 relay activates the score motor, which then resets the score reels for players 3 and 4. The score motor runs until all eight score reels are at “zero.”
    • De-energizing: Once all score reels for players 3 and 4 are at zero, the Z2 relay de-energizes.
    • Switch Function: A normally closed switch on the Z2 relay (similar to the Z1 relay, located at the top and appearing “unnatural”) allows the player control unit to increment to the “home” position (player 1, ball 1) after the Z2 relay de-energizes.
  3. Sequential Operation:
    • Player Unit Increment: The player unit increments to the Z1 position, activating the Z1 relay and resetting score reels 1 and 2.
    • Transition to Z2: After the Z1 relay de-energizes, the player unit increments to the Z2 position, activating the Z2 relay and resetting score reels 3 and 4.
    • Return to Home: Finally, after the Z2 relay de-energizes, the player unit increments to the “home” position, ready for the next game.
  4. Troubleshooting:
    • Check Relays: Ensure the Z1 and Z2 relays are functioning correctly. Inspect the relay coils for continuity and the contacts for cleanliness. Clean or replace the relays as needed.
    • Verify Switches: Make sure the normally closed switches on the Z1 and Z2 relays are clean and properly aligned. These switches must function correctly to allow the player unit to advance.
    • Examine the Score Motor: Ensure the score motor is running smoothly and that its switches are clean and properly adjusted. The score motor is essential for resetting the score reels.
    • Inspect Wiring: Check all wiring connections to the Z1 and Z2 relays for tightness and continuity. Repair any broken or loose wires.

5. What Happens When The Ball Is In The Outhole?

When the ball is in the outhole, the “O” relay activates to kick the ball back into the shooter lane, allowing gameplay to continue. polarservicecenter.net offers resources to understand and troubleshoot the “O” relay and ball release mechanisms, ensuring uninterrupted play. Our guides provide step-by-step solutions to common issues, helping you maintain your game in top condition.

5.1 How Does The “O” Relay Work?

The “O” relay activates when the ball is in the outhole, initiating the mechanism to kick the ball back into play.

  1. Activation:
    • When a ball drains into the outhole, it triggers a switch. This switch completes a circuit that energizes the “O” relay.
    • The “O” relay is specifically designed to handle this function, ensuring the ball is returned to the shooter lane for continued play.
  2. Kicking the Ball:
    • Once energized, the “O” relay activates a solenoid or other mechanical device that kicks the ball from the outhole back into the shooter lane.
    • This process allows the player to continue the game without manually retrieving the ball.
  3. Bonus Unit Reset Requirement:
    • The “O” relay will not activate unless the bonus unit (if the game has one) is reset to zero.
    • There is a bonus unit zero position switch that must be properly aligned and functioning for the “O” relay to work. This ensures that bonus points are correctly tallied and reset before the next ball is launched.
  4. Switch Inspection:
    • The switch in the outhole that triggers the “O” relay needs to be clean and properly adjusted.
    • Over time, this switch can become dirty or misaligned, preventing it from making proper contact when the ball is in the outhole.
  5. Relay Maintenance:
    • Like all relays, the “O” relay requires occasional maintenance.
    • The contacts should be cleaned to ensure good electrical conductivity, and the relay should be inspected for any signs of damage or wear.
  6. Wiring and Connections:
    • The wiring and connections to the “O” relay must be secure and free from corrosion.
    • Loose or corroded connections can prevent the relay from activating properly.
  7. Troubleshooting:
    • If the ball is not being kicked out of the outhole, the first step is to check the switch in the outhole.
    • Make sure the switch is clean and properly aligned. If the switch is working, the next step is to check the “O” relay itself.

5.2 What Prevents The “O” Relay From Activating?

Several factors can prevent the “O” relay from activating, including a non-zero bonus unit, faulty switches, or wiring issues.

  1. Bonus Unit Not Reset to Zero:
    • Problem: The “O” relay is designed not to activate unless the bonus unit is at zero.
    • Solution:
      • Ensure the bonus unit resets correctly.
      • Inspect the bonus unit’s zero position switch for proper operation.
      • Adjust or clean the switch if necessary.
  2. Faulty Outhole Switch:
    • Problem: The switch in the outhole that triggers the “O” relay may be dirty, misaligned, or broken.
    • Solution:
      • Clean the switch contacts using a contact cleaner and a small brush.
      • Adjust the switch to ensure it makes proper contact when the ball is in the outhole.
      • Use a multimeter to test the switch for continuity.
      • Replace the switch if it is faulty.
  3. Wiring Issues:
    • Problem: Loose or broken wires can disrupt the electrical circuits that control the “O” relay.
    • Solution:
      • Inspect all wiring connections for tightness and continuity.
      • Repair any broken wires and ensure connections are secure.
  4. Faulty “O” Relay:
    • Problem: The “O” relay itself may be faulty due to burnt contacts or a failed coil.
    • Solution:
      • Inspect the relay contacts for signs of burning or pitting.
      • Clean the contacts with a fine file or replace the relay.
      • Use a multimeter to test the coil for continuity.
      • If the coil is open, replace the relay.
  5. Power Supply Issues:
    • Problem: Insufficient voltage can prevent the “O” relay from activating.
    • Solution:
      • Use a multimeter to check the voltage supplied to the “O” relay.
      • Ensure that the voltage is within the specified range for the relay.
      • If the voltage is too low, check the power supply and wiring for any issues.
  6. Mechanical Obstructions:
    • Problem: Mechanical obstructions in the outhole or the ball release mechanism can prevent the ball from being kicked out.
    • Solution:
      • Ensure there are no obstructions in the outhole or the ball release mechanism.
      • Check that the ball can move freely through these areas.
      • Adjust any misalignments.

5.3 How Do I Test The “O” Relay?

To test the “O” relay, check the switch

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