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Humphrey Field Analyzer II - i
General Information
Confidential and Proprietary
52235C1105
1 - 17
Field Service Guide
Many of the unique functions that the HFA II CPU PCB supported are now included in the
HFA
II - i
Backplane PCB. The functions of the Backplane PCB include; the patient switch, touch
screen, camera frame grabber, and video.
FIGURE 2. Backplane PCB Functions and Interconnects
The DAT streamer tape of the HFA II has been replaced with a magneto-optical medium reader
in the
HFA II - i
. Besides reducing cost, the new
HFA II - i
drive provides greater long-term
storage of large patient files.
For EMI considerations, the
HFA II - i
CPU PCB and Backplane PCB are housed in a metal
enclosure. The enclosure is bolted the chassis in the location of the HFA II CPU PCB.
To accommodate the enclosure the rear cover was redesigned. The rear cover does not make
use of 1/4 turn fasteners.
Summary of Contents for humphrey HFA II-i series
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Page 424: ...Page 4 FA2i 013A PROPRIETARY and CONFIDENTIAL...
Page 502: ...FA2i 041 Page 3 Figure 2 Press rectangle in Top Left corner...
Page 516: ...Page 2 FA2i 046 Figure 1 Glass Film Wedge Detectors P N 67417 Note Spacing Washer Placement...
Page 517: ...FA2i 046 Page 3 Figure 2 Y Motor Turret Detector P N 67418 Note Spacing Washer Placement...