The photoplotter plays an important role in the filming process during the printing process. However, due to improper operation, white film appears in the process of drawing the film. What is the main reason for this? Xiaobian is aiming at this, giving Here are some suggestions:
(1) No laser:
1 The photoplotter 氦氖 laser generator is damaged, check whether the 氦氖 laser generator is broken due to vibration;
2 Photoplotter 氦氖The laser generator starts the high voltage circuit damage. If it can be confirmed that the 氦氖 laser generator is good, it is basically that the startup circuit is damaged and no laser is generated;
(2) There is a laser without light path:
1 photoplotter 氦氖 laser generator is installed in the black barrel, the beam is not aligned with the center hole;
245° angle deviation;
3 sound and light modulator damage (very unlikely)
4 Photoplotter sound and light modulator drive circuit is damaged. Connected to the acousto-optic modulator is a high-frequency drive circuit that is connected by a driver chip on the motherboard. If the driver chip is damaged, there will be no signal to the high-frequency drive circuit, and the acousto-optic modulator will have no high-frequency signal, which will cause no light path to be separated. Generally, the hand will feel it, and the chip will have no heat. If so, prove it. The chip may be damaged and needs to be replaced;
5 Photographer shutter damage, when the film is drawn, the shutter can not be opened, it blocks the light caused by white film;
6 The shutter drive circuit is damaged, the shutter itself is good, but the drive circuit is damaged, and the shutter cannot be opened;
7 The focusing mirror of the photoplotter is blocked. When there is a foreign object blocking the focusing mirror, the light cannot pass.
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