Charge coupled device (CCD) is abbreviated as CCD. CCD is a kind of semiconductor optoelectronic components made by large-scale integrated circuit technology, which makes thousands of photosensitive elements on semiconductor silicon wafers, these photosensitive elements form a linear array or area array star arranged regularly, when the object is imaged on the semiconductor plane through the lens, these photosensitive elements produce a charge proportional to the light intensity shining on it. The CCD device has the ability of self-scanning, that is, the photogenerated charge generated on the photosensitive element is sequentially and serially output on a large scale, its value is proportional to the charge on the photosensitive element, and the output signal frequency is the same as the scanning frequency of the device. Due to the advantages of small size, reliability quotient, high sensitivity, small amplitude, strong light resistance, vibration resistance, magnetic field resistance, small distortion, long life, and simple use, the camera composed of CCD has been widely used in the medical field.
Device model: storz 22220055 h3-z
Appearance inspection: the appearance is worn out under normal use.
Fault detection: A black screen appears when the cable of the camera is pulled and shaken, the large focus freezes and cannot be rotated, and the CCD position is offset.
Cause of failure: The signal line inside the cable is aging and breaking, and the focusing lens is aging inside.
Maintenance plan: 1: Replace the focus lens module and replace the new cable.
2: Replace the focus lens module and repair the cable.
The focusing lens did not detect fogging for the time being, and it was processed together with the jamming of the focusing glass.
Maintenance cycle: 3 working days.
Warranty duration: 6 months.