CYBEX 70T Service Manual page 16

MIB (PCB-003)
Theory of Operation:
This MIB (Machine Interface Board) is the main interface from the console to the base electronics.
Functions/Connectors:
• The 36 pin connector (P2) has the major connections between the console and base.
• A second connector from the base (P7) brings the main 24 VDC power for the console.
• The P8 connector on MIB provides 24 VDC to the
• The P4 connector is used to provide 12 VDC to the Tuner board.
• The P1 connector is the main interface between the Carrier board and the MIB.
• The P11 connector interfaces to the Polar / Telemetry board. This is located inside the console for Non-Treads.
• The P6 connector is a CSAFE connector only, NOT Ethernet.
• Connector P12 provides the IR signals when "remote control" is required for STB's (such as STB-IPTV).
• The P9 connector on the MIB has a cable to the power connector of the
• The P5 connector is installed on the board, and has a cable between P5 of MIB and communication connector on
(PCB-008).
Troubleshooting tips:
• Communication: The MIB has the hardware to communicate to the base electronics.
• The MIB has a Piezo device which creates the "beeps" in the console.
• The MIB has the circuitry for Contact HR functions.
• The MIB has circuitry to interface to the Activity Zone buttons and the stationary handle (bullhorn) buttons.
• The MIB generates the 12 VDC power needed for the Tuner board.
• The MIB has the power and controls for the CSAFE port.
• The MIB also has some circuitry to interface to the ESS (Emergency Stop Switch). For Replace E-Stop errors though, first verify
cables, switch, magnet, and Activity Zone before trying a new MIB.
Carrier Board (PCB-001).
HIIT I/O board
Page 14 of 116
(PCB-008).
HIIT I/O board