User manual DUKANE DC80A

[. . . ] Document Camera Service Manual DC80A V1. 0 1 05/01/2001 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Package Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Control Button Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Some Using Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Tip 1: How to avoid the hot spot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Tip 2: How to control the camera to get best picture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Tip 3: How to avoid a shadow image on document. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Tip 4: How to avoid image flicking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Replacing the mainboard and CCD board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Replacing the Hinge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Replacing the internal slide of the arm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2 Document Camera Service Manual Introduction This Document Camera is equipped with the most advanced RGB progressive CCD to capture the details of documents and output the high quality RGB signal. [. . . ] Glassy paper will result serious reflection of environment light and the lamp. If the document paper is glassy, you can take measures to overcome this problem. Tip 2: How to control the camera to get best picture Turn on the lamp to get more light for better S/N ratio. Text : Text rich document , such as report, text book Invert : Negative film Mono: Gray only picture. Tip3: How to avoid a shadow image on document Don't place your camera just beneath the lamps. Tip 4: How to avoid image flickering The image flickering is caused by fluorescent lamp with power AC frequency 60Hz/50Hz light flickering. Please check your power system frequency and set the DIP switch accordingly to remove the flickering problem. Note : The DIP switch setting will be taken effect only when you re-power on the camera 5 Maintenance Replacing the mainboard 1. There are four screws on the CCD Box Cover. 2. Loosen four screws and open the CCD Box Cover. [. . . ] Remove the 17 screws that keep the lower arm in place, and remove the cover. [. . . ]