Check Ballast/Power Supply Voltages And Signals - InFocus X1 Service Manual

Check Ballast/Power Supply Voltages and Signals

To check voltages and signals on the controller ECA, first
case removed. Then follow these steps:
1. Position the top case right side up at the rear of the projector.
2. Extend the keypad cable from the rear of the projector and plug it into the keypad connector on
the top case.
3. Connect the projector to AC power.
4. Power up the projector.
CAUTION When you start the projector, there is voltage present on the controller ECA and power
supply. Be very careful where you probe and where you touch.
X1 Service Guide
prepare for projector power up with the top
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