Parts and Module Replacement
CP42LH Service Manual
73
020-101686-03 Rev. 1 (08-2016)
Electrical components
Low voltage power supply
Estimated replacement time: 19 minutes
1. Remove the
2. Disconnect the low voltage power supply (LVPS) harness from the AC relay.
3. Disconnect all inline connections to the LVPS.
4. Disconnect the 5 connectors from the LVPS.
5. Remove the 4 screws securing the LVPS to the LVPS mounting plate.
6. Remove the 4 screws securing the LVPS mounting brackets.
7. Transfer the mounting brackets to the replacement LVPS.
Standby power supply
Estimated replacement time: 14 minutes
1. Remove the
2. Disconnect both the DC and AC power cables from the standby power supply.
3. Remove the standby power supply harness from the cable clip.
4. Disconnect the standby power supply inline connector.
5. Loosen the thumbscrew securing the standby power supply to the mounting bracket.
6. Push up and pull to clear the two slotted tabs securing the standby power supply.
7. Remove the standby power supply.
AC line filter
Estimated replacement time: 4 minutes
1. Remove the 4 screws securing the cover plate to the projector.
2. Disconnect the 3 connectors from the AC breaker.
3. Remove the 2 screws securing the AC line filter to the baseplate.
4. Remove the AC line filter.
AC breaker switch
The AC breaker switch is located in the front of the projector, directly under the IOS. It is accessible
from the bottom of the projector by removing the bottom cover.
Estimated replacement time: 5 minutes