Service manual
17 of 27
MAC Aura XB - Revision A, 05-15-2017
Figure 29: Removing the yoke covers
Figure 30: Yoke assembly
Figure 31: Tilt sensor and belt tensioner
Yoke
Removing the yoke cover
The yoke cover consists of two parts that ensure the
stability of the yoke assembly. The covers are fastened
to the yoke frame with four fine thread TX20 screws.
Each cover is fastened with four TX20 screws for PVC.
1.
Remove the eight fine thread TX20 screws (1).
There are four screws on each side of the yoke
cover.
2.
Remove the four TX20 screws for PVC (2). There
are two screws on each side of the yoke cover
3. Remove the yoke.
Replacing the tilt sensor PCB
1. Remove the yoke covers. See “Removing the
yoke cover” on page 17.
2.
Loosen the two M4 nuts (1) that secure the belt
tensioner.
3.
Remove the timing belt (2).
4.
Remove the two TX20 screws (3).
5. Disconnect the sensor connector.
6.
Push the timing wheel upwards to access the
sensor PCB.
7.
Remove the two TX10 screws (4).
8.
Remove the tilt sensor PCB.
9. To install the new tilt sensor PCB, follow the
procedure in reverse order.
3
4
5
6
7
8
1
3
4
2
2
1
1
There are four optical sensors and two stepper motors
on the product. Each function is driven by a timing
belt and is controlled by one reset sensor and one
positioning sensor.
Pos.
Yoke assembly
Wire
3
Tilt reset sensor
TR
4
Tilt positioning sensor
TP
5
Pan reset sensor
PR
6
Pan positioning sensor
PP
7
Pan motor
PM
8
Tilt motor
TM
