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Disassembling Qingping Air Monitor Lite CGDN1

简介

After +/- 3 years of 24/7, the fan of the particle meter has worn out. The fan is making a terrible noise.

你所需要的

  1. Disassembling Qingping Air Monitor Lite CGDN1, Remove screen: 步骤 1 中的图像 1，3 Disassembling Qingping Air Monitor Lite CGDN1, Remove screen: 步骤 1 中的图像 2，3 Disassembling Qingping Air Monitor Lite CGDN1, Remove screen: 步骤 1 中的图像 3，3

    • When removing the screen with the suction handle and a jimmy be very careful at the right side of the screen and don't damage the connection like I did (see red circle).

    • Carefully remove the screen towards the front. The screen is glued with some tape (see the orange marker).

    • Maybe use some heat to soften the clue.

    • I used a combination of a suction pad and Jimmy.

    编辑

  2. Disassembling Qingping Air Monitor Lite CGDN1, Remove screen backing plane: 步骤 2 中的图像 1，1

    • 2 Philips screws are holding the backing plane of the screen

    编辑

  3. Disassembling Qingping Air Monitor Lite CGDN1, Disconnect screen: 步骤 3 中的图像 1，3 Disassembling Qingping Air Monitor Lite CGDN1, Disconnect screen: 步骤 3 中的图像 2，3 Disassembling Qingping Air Monitor Lite CGDN1, Disconnect screen: 步骤 3 中的图像 3，3

    • Lift the small black ledge to remove the flat cable of the screen. Orange circle

    编辑

  5. Disassembling Qingping Air Monitor Lite CGDN1, Remove main PCB: 步骤 4 中的图像 1，2 Disassembling Qingping Air Monitor Lite CGDN1, Remove main PCB: 步骤 4 中的图像 2，2

    • Disconnect the flat cable of the touch sensor by lifting the little black ledge, see the orange circle.

    • One screw holding the PCB, green circle

    编辑

  6. Disassembling Qingping Air Monitor Lite CGDN1, Open the back: 步骤 5 中的图像 1，2 Disassembling Qingping Air Monitor Lite CGDN1, Open the back: 步骤 5 中的图像 2，2

    • 4 Philips screws hold the back in place.

    • You'll need a very long/narrow bit to reach these screws!

    编辑

  7. Disassembling Qingping Air Monitor Lite CGDN1, Remove sensors & battery: 步骤 6 中的图像 1，1

    • You can slide the complete inner parts to the front.

    编辑

  8. Disassembling Qingping Air Monitor Lite CGDN1, Dismanteling the PM sensor: 步骤 7 中的图像 1，3 Disassembling Qingping Air Monitor Lite CGDN1, Dismanteling the PM sensor: 步骤 7 中的图像 2，3 Disassembling Qingping Air Monitor Lite CGDN1, Dismanteling the PM sensor: 步骤 7 中的图像 3，3

    • Sensor is held by the 10 pin connector

    • Don't let the springs jump away

    • By slightly bending the cover you can lift the cover from the sensor housing

    • 5 little philips screw hold the sesnor PCB in place. To access the fan connector you have to remove the pcb

    编辑
结论

To reassemble your device, follow these instructions in reverse order.

另外一个人完成了本指南。

作者

与2其他贡献者

rkuijer

于06/09/15注册

145 声望

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徽章: 3

一条评论

Thank you for the guide! The part number for a replacement sensor appears to be PMS7003. There are some minor cosmetic differences but it appears to function correctly. I would suggest conducting a calibration routine / making sure the sensor is exposed to exterior air a few times over the next few days.

ironeagl - 回复

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