Fluke Biomedical 07-444 - Manual (Page 43)

Maintenance and Troubleshooting
General
7
7-1
Section 7
Maintenance and Troubleshooting
7.1 General
This instrument contains CMOS integrated circuits.
Static charge normally present in a dry atmosphere
or leakage current in soldering irons or other non-
grounded tools can instantly destroy CMOS
components. Do not attempt to remove or replace
ICs in this device without observing anti-static and
leakage current precautions. Service should be
performed only by a technician thoroughly familiar
with CMOS devices.
As with any precision instrument, certain precautions and periodic maintenance procedures are
necessary. Observe the following:
1. Keep the underside of the photo head clean, using alcohol and a soft cloth as required. DO NOT,
UNDER ANY CIRCUMSTANCES, USE ANY OTHER SOLVENT.
2. Periodically check the alignment of the aperture and the photo head. Misalignment may be due to:
a. Dropping the instrument.
b. Using excessive pressure to hold the instrument closed.
c. Letting the top section "slam" in the open position.
If the photo head and aperture are severely out of
alignment, return the unit to Fluke Biomedical for
service.
7.2 Photo Head Alignment
Proper photo head alignment is critical. Adjustments can be made by slowly tightening or loosening the
four (4) adjustment screws, visible when holding the top section of the unit open.
Proper adjustment is achieved when the photo head is parallel to the surface of the light table and the
gap is just wide enough to allow the film to slide through with slight resistance. Always check the
calibration after making photo head adjustments.
NOTE
NOTE