1.设备开启后，图像偏色故障分析及排查：在术前需根据手术类型选择手术模式，调整色调及白平衡，若调节后仍有图像失真的问题.

1. After the device is turned on, analysis and troubleshooting of image color deviation: Before surgery, the surgical mode should be selected according to the type of surgery, and the color tone and white balance should be adjusted. If there is still image distortion after adjustment

则可调节摄像主机或监视器上的色彩参数，若调节后仍未好转，怀疑是线路问题及主机问题，应首先查看主机，去掉主机的设备盖，打开电源和疝灯，查看气泵、恒流源冷风扇、RGB彩盘是否正常，逐个排查并更换，若非主机问题，则查看是否为摄像头电路元件老化或变质，若为摄像头元件老化变质则需更换，若非摄像头元件问题，则查看变压器是否正常，更换相应的元件。

The color parameters on the camera host or monitor can be adjusted. If there is still no improvement after adjustment, it is suspected to be a problem with the wiring and the host. First, check the host, remove the device cover of the host, turn on the power and hernia light, and check whether the air pump, constant current source cooling fan, and RGB color disc are normal. Check and replace them one by one. If it is not a problem with the host, check whether the camera circuit components are aging or deteriorating. If it is a problem with the camera components, replace them. If it is not a problem with the camera components, check whether the transformer is normal and replace the corresponding components.

2.内镜弯曲角度及破裂故障。故障分析及排查：不同厂家内镜的弯曲角度、大小和方向会有所差异，一般在出厂前均会由厂家统一调试，使用一段时间后，因钢丝的拉伸及手术操作过程的阻力因素导致角度发生变化，影响诊疗.

2. Endoscopic bending angle and rupture failure. Fault analysis and troubleshooting: The bending angle, size, and direction of endoscopes from different manufacturers may vary. Generally, they are uniformly adjusted by the manufacturer before leaving the factory. After a period of use, the angle may change due to the stretching of the steel wire and resistance factors during surgical operations, which can affect diagnosis and treatment

因此在使用前应先对弯曲部的角度进行调整和校对，必要时可送回原厂返修，以保证内镜的安全性。另外内镜角度钢丝容易因使用频率过高而发生断裂，此种情况需重新更换钢丝。内镜使用过程中有黄色液体流出，则考虑为内镜镜体破损，若检查无镜体破损则怀疑为操作部吸引器按钮密封不良，可拔出吸引按钮，检查密封圈是否存在老化破损，并更换新的配件。

Therefore, the angle of the curved part should be adjusted and calibrated before use, and if necessary, it can be sent back to the original factory for repair to ensure the safety of the endoscope. In addition, the endoscopic angle wire is prone to breakage due to excessive frequency of use, and in this case, the wire needs to be replaced again. If yellow liquid flows out during the use of the endoscope, it is considered that the endoscope body is damaged. If there is no damage to the endoscope body during inspection, it is suspected that the suction button of the operating part is poorly sealed. The suction button can be removed, the sealing ring can be checked for aging and damage, and new accessories can be replaced.

3.送气、送水、吸引管堵塞类故障。故障分析及排查：因加压泵高度会影响灌注压，导致无法送水，因此首先检查泵体压是否与患者同高，排除泵体压故障。其次检查送气孔及送水孔是否通畅，可以细钢丝在内窥镜结构的前端疏通，一边通一边送气、送水以排除故障。在解除故障后需注意将喷嘴复原，并妥善固定。若非送气、送水孔堵塞则怀疑为内镜气路单向阀门内小弹簧生锈，可打开单向阀门，以酒精棉布擦拭后涂抹专用润滑油，并重新安装。

3. Malfunctions such as blockage of air supply, water supply, and suction tubes. Fault analysis and troubleshooting: Due to the height of the booster pump affecting the infusion pressure, water cannot be delivered. Therefore, the first step is to check whether the pump body pressure is the same as the patient's, and eliminate the pump body pressure fault. Next, check if the air and water supply holes are unobstructed. A thin steel wire can be used to clear the front end of the endoscope structure, allowing air and water to be supplied while passing through to troubleshoot the issue. After troubleshooting, pay attention to restoring the nozzle and securing it properly. If the air or water supply holes are not blocked, it is suspected that the small spring inside the endoscopic one-way valve is rusted. The one-way valve can be opened, wiped with an alcohol cotton cloth, coated with special lubricating oil, and reinstalled.

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