What is the difference between Shelf Edge LCD Display and Stretched Bar LCD Display? Shelf Edge LCD Display has a more significant aspect ratio and is mainly used in retail areas, such as shopping malls, supermarkets, convenience stores, pharmacies, etc. Stretched Bar LCD Display can satisfy all your imagination of LCD products. Through DNR cutting
DNR DISPLAY currently provides digital signage ranging from 8" to 88". In addition to the existing 150+ models, OEM&ODM services are also available.
1. Observation method: Observe the main chip, PCB board, power IC, and each slot. ① Observe whether the main chip has obvious burning, scorching, or burning. ② Check whether there is a short circuit in each slot. 2. Touch method: (Power on for a period of time): Touch each chip, IC, etc. of the motherboard
We will provide a warranty ranging from 1 to 3 years in accordance with the laws and regulations of the customer's location. At the same time, we will also provide customers with lifetime online support.
1. Check the three major working conditions of the CPU Powered by Clock Reset 2. Remove the BIOS and check if the 22-pin chip select signal has jumped 3. Try changing the BIOS and check the line connected to the BIOS 4. Check ISA, PCI data lines, address lines (and AD), interrupts and other control