Prepare For Power Up With Top Case Removed - InFocus X1 Service Manual

Prepare for Power Up with Top Case Removed

You can remove the top case and power up the projector to check fan or thermal switch operation. You
also do this to check internal voltages and signals, which may require additional projector disassembly.
Here's how to prepare the projector for power up with the top case removed.
1. Remove the top case (page 52)
NOTE The lamp must be in place and connected to start the projector with the top case removed.
2. Use vinyl electrical tape or other non-conductive means to hold the safety switch actuator in the
depressed (closed) position.
3. Do one of the following:
♦
Check controller ECA voltages and signals (page 81)
♦
Check the thermal switch (page 86)
♦
Check the color wheel cable (page 84)
♦
Check the fans (page 87)
♦
Check the ballast/power supply ECA voltages and signals (page 88)
♦
Check the I/O ECA voltages and signals (page 90)
X1 Service Guide 80