EVA System: User Guide
17
x Brackets
If the device brackets are broken and the smartphone is not sitting
properly in the cradle causing artifacts in the image or a low-resolution
image, the user should contact service to replace the device.
x Device Casing
If the device casing is cracked or not intact leading to artifacts in the
image or low-resolution image, the user should contact service to
replace the device.
x On/Off Switch
If the on/off switch is stuck in either the on or off position, the user
should contact service to replace the device.
x USB Connector
If the USB connector (input) is broken, the user should contact service to
replace the device.
Lens Troubleshooting
x Lens Cracks or Misalignment
If there are artifacts or low-resolution images because of a cracked or
misaligned lens, the app’s software should check for distortions in the
image or the user should do a calibration check daily. If either of these
checks fail, the user should contact service to replace the lens.
x Dirt on Lens
If there are artifacts or low-resolution images due to dirt on the lens, the
app’s software should check for distortions in the image or the user
should do a calibration check daily. The user should also clean the lens. If
these checks fail, the user should contact service to replace the lens.
x Focus Adjustment
Focus is maintained with the colposcope by adjusting the separation of
the objective lens, positioned at the far-end of the lens tube opposite
the smartphone’s camera, from the rest of the lens system. This can be
done by screwing the end piece in or out. The two extreme positions
correspond to working distances of 22.5 and 42.5cm.
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