Essilor Instruments APH 550

2
1-2 Internal structural diagram (head)
No.
Name
No.
Name
No.
Name
1
Motor control board assy
6
LED board assy for lighting the
left side near point chart
11
PD assy
2
Infrared communication board assy
12
Leveling adjustment knob assy
3
Right side motor drive board assy
7
LD-R assy
13
Chart stopper
4
Left side motor drive board assy
8
LD-L assy
14
Head unit peripheral harness
5
LED board assy for lighting the right
side near point chart
9
VD-R assy
15
Infrared ray harness
10
VD-L assy
16
Motor drive unit harness
2
14
5
6
13
15
3
4
7
8
9
10
14
12
11
15
16
1