Do-it-yourself instrument repair
Release time:
2020-08-14
Repair Instrument
by Yourself Recently, a mettler electronic balance in the control room of Yunnan Peak Quality Management Department has been used for a long time, and the "Switch / Peel" button in the middle of the operation panel often does not respond, seriously affecting the normal use of employees. However, it costs thousands of dollars to buy a new balance, so we decided to take it apart and clean the "switch / peel" button to see if we could get it back to normal.
After using a domestic electronic balance to temporarily replace it, I began to disassemble the old balance, only to find that the screws it used were specially made and ordinary screwdrivers could not be used. Fortunately, I bought a screwdriver combination set before. After I brought it, it was no problem to remove the screws.
After disassembling the shell, it was found that the button used a touch switch of 6 × 6 × 5.5 , which could not be cleaned, and there was no such touch switch in the warehouse. After a closer look, I found that there was a hidden button on the circuit board, which was not used at ordinary times, so I wondered if I could exchange it with the button of "switch / peeling. After consulting all electrical engineers, Huang Gong, confirmed that this method is feasible. Therefore, after work, with the help of Huang Gong, the two button switches were exchanged with an electric soldering iron, and then installed back, and the electronic balance returned to normal use. (Li Chun)
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