Ettevaatusabinõud LCD-ekraani hooldamiseks:
1. Start with simple things first:
Probleemi lahendamiseks peate alustama kõige lihtsamast, st kõigepealt kontrollima väliskeskkonna tingimusi (probleemi visualiseerimine, toiteallikas, ühendus jne) ja seejärel kontrollima kuvari sisekeskkonda (ühenduse olekut, seadme värv, komponendi kuju, märgutuli olek jne), see aitab keskenduda probleemi otsustamisele ja asukohale, peame sellele tähelepanu pöörama, alles pärast hoolikat jälgimist saab hinnata ja parandada.
LCD
2. Think first and then do it according to the phenomenon:
According to the phenomenon of the problem, first think about where to start and how to operate, and then carry out the actual maintenance operation. You should consult relevant materials (maintenance manuals, etc.) as much as possible, and after understanding the corresponding technical requirements and application characteristics, analyze and judge based on the actual situation and combine your own knowledge and experience before proceeding with maintenance.
3. Static first, then dynamic:
The so-called static inspection is the inspection performed before the machine is powered on. When it is confirmed that the static inspection is correct, the dynamic inspection can be performed by powering on. If abnormal conditions such as smoke are found, shut it down immediately and perform static inspection again. This can avoid undue damages caused by energizing the machine due to unknown conditions.
4. Clean first and then repair welding:
When the monitor is damp, dropped or there is a lot of dust inside, the moisture or dust may cause corrosion to the circuit board of the monitor. In this case, it is generally necessary to clean the internal circuit board of the display first, and then perform repair welding on the dummy soldering part of the circuit board. After cleaning and repair welding, some problems can be automatically eliminated.
5. Turn off the power before overhauling:
Kuna kõik kuvari sisemised vooluringid kasutavad integraallülituskiipe, on nende tööpinge vaid umbes 3 V, mida on staatilise elektri abil lihtne lõhkuda. Seetõttu lülitage kuvari sisemiste pistikute ühendamisel või trükkplaadi komponentide keevitamisel esmalt toide välja ja seejärel kontrollige uuesti monitori trükkplaati.
6, power supply first, circuit:
According to experience, the problem rate of the power supply part accounts for a relatively high proportion of the whole machine. Many problems are caused by the power supply, so repairing the power supply first can often get twice the result with half the effort.
