Central Fixation Led/Beamsplitter Removal - Zeiss humphrey HFA II-i series Field Service Manual

Humphrey Field Analyzer II - i
8) Remove the Central Fixation LED from the Camera Mount by gently pressing
down on the holding tab with a small allen wrench, while pulling out the LED by
the cable.
9) Loosen the M4 screw at the top of the Camera Mount and remove the two M4
screws at the bottom. If the bowl is still in the instrument, the camera will need to
be removed to access the top screw.
10) Maneuver the Reflex LED holder through the opening in the Camera Mount. If
you are replacing the Fixation PCB, you must cut the tie-wrap and remove the
Reflex LED from the Reflex LED holder.
Replacement Notes:
1) When re-inserting the Central Fixation LED, you must line up the notch on the
LED with the flat portion of the holder. You will hear a click when the LED moves
into position.
2) The Reflex LED holder will be re-used with the new Fixation PCB. Make sure that
you tie-wrap the new Reflex LED to the Reflex LED holder.
Follow-up Checks/Adjustments:
See Table 3-1.

3.16 Central Fixation LED/Beamsplitter Removal

1) Remove the CCD camera (3.14).
2) Remove the Central Fixation LED from the Camera Mount by gently pressing
down on the holding tab with a small allen wrench, while pulling out the LED by
the cable.
3) Press a small screw driver against the flat side of the beamsplitter clip and lift the
clip upwards.
4) Remove the beamsplitter from the mount. When working with the beamsplitter,
make sure that you do not get fingerprints on its surfaces.
Replacement Notes:
To secure the beamsplitter in place, place the hooks, on the open side of the
P
beamsplitter clip, in the slots and press down on the flat side of the clip
52235C1105
Parts Removal/Replacement
Confidential and Proprietary
3 - 27
Field Service Guide