Instruction Manual

Technical documentation: MyChron 3 Visor Version 1.09
2
Installation notes
• We recommend You to choose a place where both display unit and
“Junction box” are not in contact with oil or fuel; make sure that the
gauge is not installed too close to heat sources and protect the
instrument from vibrations.
• We remind you that your MyChron 3 Visor is not equipped with
internal batteries, so it needs to be powered by an external power
source (i.e. the car’s battery).
• Once the gauge has been correctly installed, you may plug the
speed sensor and the beacon receiver inside the female connectors
located on the Junction box’s front panel. Moreover, you may
connect the gauge to the engine’s ECU using a serial/CAN cable.
How to connect MyChron 3 VISOR to the ECU
To connect MyChron 3 Visor to the ECU, please use a serial/CAN cable
connected to the gauge’s POWER/COM connector, as shown in Figure 4.
ENGINE'S
ECU
POWER-COM
SPEED
BEACON
Figure 4: How to connect your MyChron 3 Visor to the engine’s ECU
How to connect MyChron 3 Visor to the PC
In order to connect your MyChron 3 Visor to the PC, please use the USB
data download cable and plug it both in the gauge’s USB port and in the
PC’s USB port, as explained in Figure 5. Please remember to use a 9-15
Volts external power source in order to be able to switch the gauge on.
POWER-COMBEACON
SPEED
Figure 5: How to connect your MyChron 3 Visor to the PC
9 – 15 VDC