Inspection Judgment; Precaution - BenQ G2450HM Service Manual

7. Inspection judgment:

7-1 The judgment of the shipped lot (acceptance or rejection) should follow the sampling plan of MIL-STD-105E,
single sampling, normal inspection, level II.
7-2 If the number of defects is equal to or less than the applicable acceptance level, the lot shall be accepted.
7-3 If the number of defects is more than the applicable acceptance level, the lot shall be rejected and the buyer
should inform the seller of the result of incoming inspection in writing

8. Precaution:

Please pay attention to the following items when you use the LCD Module with back-light unit.
1. Do not twist or bend the module and prevent the unsuitable external force for display module during assembly.
2. Adopt measures for good heat radiation. Be sure to use the module within the specified temperature.
3. Avoid dust or oil mist during assembly.
4. Follow the correct power sequence while operating. Do not apply the invalid signal, otherwise, it will cause
improper shut down and damage the module.
5. Less EMI: it will be more safety and less noise.
6. Please operate module in suitable temperature. The response time & brightness will drift by different temperature.
7. Avoid displaying a fixed pattern (exclude the white pattern) for a long period, which may lead to image-sticking.
8. Be sure to turn off the power when connecting or disconnecting the circuit.
9. Polarizer scratches easily, please handle it carefully.
10. Display surface never likes dirt or stains.
11. A dewdrop may lead to destruction. Please wipe off any moisture before using module.
12. Sudden temperature changes cause condensation, and it will cause polarizer damaged.
13. High temperature and humidity may degrade performance. Please do not expose the module to the direct
sunlight and so on.
14. Acetic acid or chlorine compounds are not friends with TFT display module.
15. Static electricity will damage the modules; please do not touch the module without any grounded device.
16. No parts of the panel should be dismantled without the presence of AU engineer or the product will not be
warranted.
17. Be careful do not touch the rear side directly because of the backlight high voltage.
18. No strong vibration or shock. It will cause module broken.
19. Storage the modules in suitable environment with regular packing.
20. Be careful of injury from a broken display module. Please avoid the pressure adding to the surface (front or rear
side) of modules, because it will cause the display non-uniformity or other function issue.
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