AAMA Player 1 and 2 Input/Output Connections
GND: Signal Ground 5 vdc: Current requirements vary with system -5 vdc: Current requirements vary with system +12 vdc: Current requirements vary with system
Test Mode: Normally open switch connected to Signal Ground that when closed for a minimum 50ms causes the CPU board to enter its internal test mode. Specific test mode functions are not defined in this specification.
Tilt Switch: Normally open switch connected to Signal Ground that when closed for a minimum 20ms signals a tilt condition to the CPU board. This input is rarely used in current JAMMA-compatible boards.
Start 1: Normally open switch connected to Signal Ground that when closed for a minimum 50ms signals a player 1 start game condition to the CPU board.
Up 1: Normally open switch connected to Signal Ground that signals player 1 joystick up condition to the CPU board. In a trackball configuration this input is connected to the Horizontal Phase 1 (Direction) output from the player 1 trackball.
Down 1: Normally open switch connected to Signal Ground that signals player 1 joystick down condition to the CPU board. In a trackball configuration this input is connected to the Horizontal Phase 2 (Clock) output from the player 1 trackball.
Left 1: Normally open switch connected to Signal Ground that signals player 1 joystick left condition to the CPU board. In a trackball configuration this input is connected to the Vertical Phase 1 (Direction) output from the player 1 trackball.
Right 1: Normally open switch connected to Signal Ground that signals player 1 joystick right condition to the CPU board. In a trackball configuration this input is connected to the Vertical Phase 2 (Clock) output from the player 1 trackball.
Switch A1:
Switch B1:
Switch C1: Normally open switches connected to Signal Ground that are used
for system specific input for player 1.
Start 2: Normally open switch connected to Signal Ground that when closed for a minimum 50ms signals a player 2 start game condition to the CPU board.
Up 2: Normally open switch connected to Signal Ground that signals player 2 joystick up condition to the CPU board. In a trackball configuration this input is connected to the Horizontal Phase 1 (Direction) output from the player 2 trackball.
Down 2: Normally open switch connected to Signal Ground that signals player 2 joystick down condition to the CPU board. In a trackball configuration this input is connected to the Horizontal Phase 2 (Clock) output from the player 2 trackball.
Left 2: Normally open switch connected to Signal Ground that signals player 2 joystick left condition to the CPU board. In a trackball configuration this input is connected to the Vertical Phase 1 (Direction) output from the player 2 trackball.
Right 2: Normally open switch connected to Signal Ground that signals player 2 joystick right condition to the CPU board. In a trackball configuration this input is connected to the Vertical Phase 2 (Clock) output from the player 2 trackball.
Switch A2:
Switch B2:
Switch C2: Normally open switches connected to Signal Ground that are used
for system specific input for player 2.
Coin 1: Normally open switch connected to Signal Ground that when closed for a minimum 50ms signals a coin passing through the player 1 coin mechanism to the CPU board.
Coin 2: Normally open switch connected to Signal Ground that when closed for a minimum 50ms signals a coin passing through the player 2 coin mechanism to the CPU board.
Service 1: Normally open switch connected to Signal Ground that when closed for a minimum 50ms signals a credit increase request for player 1 to the CPU board. For multiple player games that do not need a separate coin slot for each player, Service 1 will add a credit to the credit pool.
Service 2: Normally open switch connected to Signal Ground that when closed for a minimum 50ms signals a credit increase request for player 2 to the CPU board. This input is used only if a separate coin slot is required for each player.
Coin Counter 1: An open collector output that when activated (grounded) for a minimum of 60ms causes the coin counter mechanism #1 to increment by one. The normal state of this output is deactivated. This output has a minimum breakdown voltage of 30Vdc and a minimum current capacity of 1Adc.
Coin Counter 2: An open collector output that when activated (grounded) for a minimum of 60ms causes the coin counter mechanism #2 to increment by one. The normal state of this output is deactivated. This output has a minimum breakdown voltage of 30Vdc and a minimum current capacity of 1Adc.
Coin Lock Out 1: An open collector output that when deactivated causes the coin lock out function of coin acceptor #1 to prevent coins from being accepted. The normal state of this output is activated (grounded).
Coin Lock Out 2: An open collector output that when deactivated causes the coin lock out function of coin acceptor #2 to prevent coins from being accepted. The normal state of this output is activated (grounded).
Left Speaker - Left Speaker + Connections to + and - terminals of the left speaker or to the only speaker in a monophonic system. Maximum peak-to-peak voltage between speaker outputs is 24vdc. Standard frequency range is 20Hz to 20kHz.
Right Speaker - Right Speaker +Connections to + and - terminals of the right speaker. Maximum peak-to-peak voltage between speaker outputs is 24vdc. Standard frequency range is 20Hz to 20kHz.
Video Red: Video output connected to the red input of the system monitor. Typical voltage is +2vdc GND to peak. The maximum frequency of the signal is 10MHz.
Video Green: Video output connected to the green input of the system monitor. Typical voltage is +2vdc GND to peak. The maximum frequency of the signal is 10MHz.
Video Red: Video output connected to the red input of the system monitor. Typical voltage is +2vdc GND to peak. The maximum frequency of the signal is 10MHz.
Video Green: Video output connected to the green input of the system monitor. Typical voltage is +2vdc GND to peak. The maximum frequency of the signal is 10MHz.
Video Blue: Video output connected to the blue input of the system monitor. Typical voltage is +2vdc GND to peak. The maximum frequency of the signal is 10MHz.
Video Sync: Video output connected to the composite sync input of the system monitor. Frequency ranges from 15.1KHz to 16.8KHz. Peak voltage level referenced to ground is +5vdc. Video GND: Ground output for the video signals.