Zeiss humphrey HFA II-i series, Field Service Manual

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Humphrey Field Analyzer II - i Parts Removal/Replacement
Confidential and Proprietary
52235C1105 3 - 29
Field Service Guide
3) Disconnect the cable from the projection lamp.
4) Disconnect the two ribbon cables from the Projector Interconnect PCB.
5) Loosen the chassis-mounted, quarter-turn fastener that secures the projection
assembly at its end closest to the CPU PCB.
6) Remove the two screws located at the top front of the bowl assembly.
7) Rotate the turret assembly to position the turret Y-motor towards the front.
8) Move the aperture wheel/color wheel carriage all the way forward, towards the
first projection mirror.
NOTE -
Before lifting the projection assembly out of the instrument, ensure that your
projection mount tool is set up to match the diameter of the carriage rails (3/8") on the
projection assembly..
9) Lift the projection assembly up and out as you maneuver the turret through the
hole in the bowl assembly.
10) Install the projection assembly on the projection mount tool.
Replacement Notes:
Check/clean the optics as necessary before reinstalling the projection assembly.
Follow-up Checks/Adjustments:
See Table 3-1.