**Troubleshooting**
===== Goggle on=====
The power-on switch is located on the goggle control box next to the scanner (directly attached to the goggles).

On the older goggles this switch is in the lower left corner. There is an indicator light that toggles between StandBy and On when you press the power switch. To run you must be in the On position. You should turn the goggles back to StandBy after every subject to avoid the automatic time-out feature, and to extend goggle life.

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