1. Fais fab mov teeb meem
Lub input fais fab mov voltage tsis ruaj khov los yog siab dhau los yog qis dhau, uas tshaj qhov ua haujlwm ntawm cov khoom siv.
Cov kab hluav taws xob yog kev laus thiab puas, ua rau kev sib cuag tsis zoo lossis luv luv.
2. Internal Circuit Court tsis ua hauj lwm
Cov khoom ntawm lub rooj tsavxwm Circuit Court yog laus thiab puas, xws li capacitor to, resistor qhib Circuit Court, thiab lwm yam.
Integrated Circuit Court chip yog faulty.
3. Tsis zoo cua sov dissipation
Lub kiv cua txias yog qhov ua yuam kev thiab tsis tuaj yeem tso tawm cov cua sov hauv cov khoom siv.
Qhov chaw ua haujlwm kub siab dhau heev lawm, cuam tshuam rau cov cua kub dissipation ntawm cov khoom siv.
4. Mechanical Cheebtsam teeb meem
Cov electrode hnav thiab deformed, ua rau tsis zoo sib cuag.
Lub plug thiab lub qhov (socket) yog xoob los yog puas.
5. Kev siv ntau dhau
Cov cuab yeej siv tau ua haujlwm ntev tshaj qhov ntsuas lub zog thiab lub peev xwm thauj khoom.
6. Humidity thiab corrosion
Qhov chaw ua haujlwm yog ntub, uas ua rau luv luv Circuit Court lossis tiv thaiv corrosion.
7. Kev ua haujlwm tsis raug
Cov kauj ruam ua haujlwm tsis raug, xws li teeb tsa qhov tsis raug, lub zog tsis raug rau thiab tawm ib ntus, thiab lwm yam.
8. Kev cuam tshuam sab nraud
Muaj zog electromagnetic cuam tshuam cuam tshuam rau kev ua haujlwm ntawm cov khoom siv.
9. Lub sijhawm ntev tsis siv thiab tsis muaj kev saib xyuas
Cov khoom siv sab hauv yog damp thiab plua plav vim tsis siv sijhawm ntev, thiab kev siv hluav taws xob thiab kev saib xyuas tsis tu ncua.





