Zeiss humphrey HFA II-i series, Руководство по обслуживанию на месте

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Parts Removal/Replacement Humphrey Field Analyzer II - i
Confidential and Proprietary
Field Service Guide
3 - 30 52235C1105
3.18 Projection Interconnect PCB Removal
1) Remove the front and rear covers (3.2, 3.3).
2) Disconnect all cables connected to the Projection Interconnect PCB.
3) Remove the finger shaft guard (two screws), which mounts to two standoffs on the
Projection Interconnect PCB.
4) Remove the two screws and two standoffs securing the Projection Interconnect
PCB, and remove the board.
Replacement Notes:
P
When reinstalling the PCB, loosely install the two PCB mounting screws and leave
off the two standoffs temporarily. Position the PCB for proper clearance between
the flag and edge detector on the bottom side of the Projection Interconnect PCB
then tighten the screws and install the standoffs.
Follow-up Checks/Adjustments:
See Table 3-1.
3.19 Film Wedge/Motor Removal
Caution — The aperture wheel and ND wedges on the projection
assembly are delicate and easily damaged — work carefully! Any
fingerprints or contamination on the optical area of the film wedge may
necessitate replacement of the wedge; it cannot be cleaned, other than to
blow off any dust.
1) Remove the front and rear covers (3.2, 3.3).
2) Remove the screw securing the bracket that covers the film wedge motor.
3) Remove the two screws securing the film wedge to the film wedge motor shaft,
and remove the wedge.
4) Disconnect the "Right" (P4) cable from the Projector Interconnect PCB.
5) Remove the four screws securing the film wedge motor to the projection
assembly.