Cirrus SR20 Maintenance Manual page 62

C I R R U S
A I R P L A N E M A I N T E N A N C E M A N U A L
V. Circuit Board Assembly - Serials w/ MCU 19900-001
(1) Removal - Circuit Board Assembly
(a) Set BAT1, BAT2, and AVIONICS switches to OFF positions.
(b) Remove engine cowling.
(c) Disconnect battery 1.
(d) Remove MCU cover.
(e) Disconnect P134 and P126 connectors from circuit board.
(f) Remove screws securing circuit board to mount.
(g) Remove nuts and clamps securing wire harness to mount.
(h) Remove screws securing mount to chassis standoffs.
(2) Installation - Circuit Board Assembly
(a) Position mount to chassis standoffs and secure with screws.
(b) Position circuit board assembly to mount and secure with screws.
(c) Position wire harness clamps to mount and secure with nuts.
(d) Connect P134 and P126 connectors to circuit board.
(e) Install MCU cover.
(f) Connect battery 1.
(g) Perform Operational Inspection - Master Control Unit.
(h) Install engine cowling.
24-30
Page 62
19 Sep 2017
(See Figure 24-3010)
(Refer to 71-10)
(Refer to 24-30)
(Refer to 24-30)
(Refer to 24-30)
(Refer to 24-30)
(Refer to 71-10)
EFFECTIVITY:
Serials w/ MCU 19900-001
M O D E L S R 2 0
(Refer to 24-30)