13-28 INSTRUMENTS (AND AVIONICS) / INSTRUMENTS AND AVIONICS GENERAL MAINTENANCE
ICON A5 / MAINTENANCE MANUAL CHANGE C2
T15 Torx Driver
Parts Required
ICA011651 MULTIPLE SYSTEMS CONTROLLER
Aircraft System and Number
10—Instruments (and Avionics)
Consumables
None
1. Remove the Right Instrument Panel Top Panel. (See “Right Instrument Panel Top Panel Removal”
on page 8-17.)
2. Disconnect the five electrical connections going to the Digital to Analog Converter (DAC).
3. Remove the DAC by removing four 8-32 screws with a T15 Torx driver, two at top, and two at
bottom of the DAC.
4. Disconnect the four electrical connections going to the MSC. Disconnect the four nylon tubes
where they insert into the push-on connectors at the MSC. Label where they go and seal all open
ends to prevent debris from entering the tubes and MSC.
5. Reaching in through the access hole previously covered by the DAC, remove the four 8-32
screws securing the MSC to the Right Crossbeam Web using a T15 Torx driver.
6. Install the replacement MSC and reconnect all cabling and plumbing.
7. Perform a Pitot/Static/AOA System Leak Check (see Related Information) to confirm no leaks
at the MSC connections before proceeding.
8. Reinstall the DAC and its electrical connections.
9. Install the Right Instrument Panel Top Panel.(See “Right Instrument Panel Top Panel Installation”
on page 8-18.)
VERIFICATION METHOD:
Power up and check all avionics and electrical systems for proper function.