OCT/SLO SERVICE MANUAL Version V.4
24
Protocol for Replacement Mini-LCD
Tools required: Large Crosshead screwdriver, spare Mini-LCD assembly, monitor and
alignment JIG.
1.
Attach the mini-LCD alignment JIG to the lens barrel of the machine. The LCD-
alignment jig should be attached to a monitor.
2.
If the current mini-LCD is to be replaced, remove it now and reconnect cables to
the new LCD.
3.
Ensure the 3 holding screws are loose so that the assembly may be adjusted, but
firm enough that the assembly does not move before fixing.
4.
Run the system and set the scan rate at 32 fps zoomed.
5.
Adjust the focus of the system so that the scan pattern is clearly displayed on the
monitor in a sharp fashion. To do this you may need to adjust the power of the
SLD drive current as set on the pilot 2 or 4 to zero. If this is the case, do not start
or stop the scanning as this will cause the system to begin jigging to find the
‘correct’ alignment position.
6.
Once focused, adjust the position of the mini LCD assembly to focus the cross on
the monitor. At this point, lateral position is unimportant. Once focused, fix and
switch to B/C scan usually by pressing F6.
7.
Now adjust the position of the fixation cross with the mouse and when centered,
use the ctrl-alt-shift and right click to set the default fixation position.
8.
Fix screws with varnish.
The system should be booted up and run to see if there is any obstruction
to movement, while looking at mini-LCD.
