1. Kev sojntsuam ib qho uas feem ntau ua tsis tau thiab qhov tsis ua rau raug tshuaj ntsuam
1. Tsis muaj qhov pom kev thaum khau raj tuaj. Kev tsom xam ua rau qhov ua rau tsis ua hauj lwm: 1. Lub roj teeb sab nraud 2. Lub ntsuas hluav taws xob CPU pawg yog faulty
2. Lub roj teeb tsis tuaj yeem them. Kev tsom xam ntawm qhov ua kom tiav qhov ua tsis tiav: 1. Lub fuse ntawm qhov ntsuas yog tshuab 2, lub xov tooj ntawm lub xov hluav taws xob raug yuam 3, lub roj teeb tau tawg
3. Tsuas yog ntsuas hluav taws xob lossis ntsuas hluav taws xob tam sim no. Kev tsom xam ua kom muaj qhov ua tsis ua tiav: 1. Cov yeeb yaj kiab tsis ruaj khov kho 2. Cov kab ntawv sim 32mA fuse raug tshuab
3. Lub tshuab luam ntawv tsis luam tawm. Kev tsom xam qhov ua rau tsis ua tiav: 1. Tshuab luam ntawv tsis ua hauj lwm 2. Lub roj teeb ua haujlwm nrawm nrawm 3. Ntsuas CPU pawg thawj coj tsis ua tiav 4. Cov ntawv luam ntawv tsis teeb tsa kom zoo (Daim ntawv Thermal tuaj yeem luam tawm ntawm ib sab xwb)
6. Qhov tshuaj ntsuam LCD yog qhov muag plooj lossis tsis tso saib. Kev tsom xam ntawm qhov ua rau tsis ua hauj lwm: 1. Lub roj teeb tau tawm ntawm 2. Lub twj paj nruag CPU pawg ua haujlwm yuam kev
2. Cov teeb meem xav tau kev mloog
1. Thaum noj qhov siv hluav taws xob siv hluav taws xob los ntawm PT theem nrab, ua tib zoo xyuas cov xov hlau txhawm rau zam PT PT luv luv Circuit Court.
2. Qhov ntsuas hluav taws xob voltage kis kab thiab lub teeb liab tawm tswv yim tam sim no yuav tsum tsis txhob thim rov qab. Yog tias tam sim no cov teeb liab tawm tswv yim kab txuas nrog ob sab ntawm PT lossis qhov ntsuas qhov kawg ntawm qhov ntsuas hluav taws xob hloov, ntsuas tau ntsuas tau.
3. Xws li cov ntsuas hluav taws xob thiab kev tawm tswv yim tam sim no, tsis txhob ntsaws lossis tsis rub lub ntsuas ntsuas kom tsis txhob hlawv cov ntsuas.
4. Tom qab qhov ntsuas tau raug puas lawm, thov tso tseg siv tam sim ntawd thiab ceeb toom rau lub tuam txhab, tsis txhob qhib lub thawv thiab kho nws tus kheej. Thaum lub ntsuas hluav taws xob tsis ua haujlwm zoo, thov xub xyuas seb lub tshuab hluav taws xob yog tshuab. Cov kev sim tsuas yog txuas ntxiv tom qab hloov cov qauv nrog tib daim ntawv pov hwm. Yog tias cov teeb meem nyuaj dua, thov hu rau peb lub tuam txhab ncaj qha.
5. Lub chaw ntes zinc oxide yuav tsum tsis muab tso rau qhov chaw noo thiab siab qhov chaw sov.
6. Yog tias qhov ntsuas tsis siv rau lub sijhawm ntev (ntau tshaj peb lub hlis), lub roj teeb yuav ua rau sab nraud thiab puas ntsoog. Yog li, qhov ntsuas yuav tsum tau them ib zaug txhua 3 lub hlis (ntau dua 6 teev) kom paub tseeb tias qhov ntsuas tau tuaj yeem siv ib txwm siv. Lub sijhawm them nyiaj yog: tig rau lub hwj huam hloov thiab ntsaws rau hauv 220V fais fab mov.
7. Thaum siv AC (lossis them), lub hwj huam hloov hluav taws xob feem ntau qhib.
8. RS232 yog qhov chaw nres nkoj rau kev ua txhaum.