Samsung is a good brand, both mobile phones and television, and it's a good whole, and the market is good, but people are still concerned about the maintenance of samsung television, such as screen anomalies, how should it be repaired and maintained? Three-star television maintenance requires skill, not strength, technology and intelligence, or else it's too bad
I. Samsung television maintenance techniques
1. Liquid crystal screen failure
Query
(1) the screen failure of three-star televisions, which typically includes issues such as screen cracks, shades, black screens, white screens; the screen displays, which typically have faults such as crosses, vertical wires, bright wires, dark lines; and the content of the screen malfunctions such as image colours, light fences, etc。
(2) when the failure of the screen is determined, the specific type of failure is identified, followed by the determination of the specific failure and final maintenance。
2. Main drive failure
Query
(1) it may be that there was no image, no raster, no acoustic, no power signal light, no light flash, no cold machine, etc。
(2) it may also be the automatic switch on the switchboard, the automatic increase in volume, etc.; soundlessness, dumbness, distortion; failure to turn off the automatic machine in case of uncertainty, non-functional remote control and low sensitivity, all of which are malfunctions。
(3) as with the tests above, first the failure is identified, then the same method is used for analysis and final overhaul。
Ii. Three-star television repair and repair modalities
1. Barrier detection methods
In case of non-electricity of the logical plate, the primary check is whether the safety resistance on the logical board is open, whether the power source foot and ground of the relevant integrated circuit on the logical plate are punctuated, whether the tripolar tube on the logical plate is leaked or not, and if so, whether it is repaired in a timely manner。
2. Electricity test methods
(1) several key points are primarily tested for the normality of upper-screen voltages, with variations in upper-screen voltages of different types, mainly 5v or 12v。
(2) checks the normality of the supply of 3. 3v, 2. 5v or 1. 8v on the dc/dc conversion circuits on the logical board, and the different labels of different screen manufacturers, e. G., 3. 3v on the aut420hw04 screen logic board with “v3d3”。
(3) checks the normality of vda voltage generated by dc/dc conversion circuits on the logical board, which is usually around 15. 8 v, which determines。
Iii. Detailed costs for the maintenance of samsung television
1. This cost and the size of the television set is related to 50 inches of television, which is about $300, 30 within 30 kilometres and up to $400。
For the replacement or maintenance of spare parts, it depends primarily on what the spare parts are, which, if the main plate is broken, would take about 1,000; and about 300 if the power panels are damaged。
There are few methods of repairing samsung television, mainly listing malfunctions, which are classified to avoid confusion among users and not knowing how to express and organize ideas. This is also part of the maintenance, and if you do not know, how to repair it. Three-star television maintenance costs are also low, and if more than $100, think carefully and choose. If you want to know more about your home, please keep your eyes open on your home after the sale。
Reproduced for retention: http://www. Wanshifu. Com (teacher)
