The brand name machine has a black screen and there is a picture with the truth. - appliance repair

Brand spot active patch crystal oscillator 5x7OSC 125.000MHZ

Single chip microcomputer STM32L151CCU6

A user shared an issue with an LCD screen. The backlight is on, but the screen appears black. Additionally, the right side of the display shows some dark spots. As shown in the images below, the image compression seems to be too high, which makes it difficult to see details clearly.

Please find the attached images for a better understanding of the problem. These photos show different devices, including a no-brand machine and some miscellaneous units. The quality of the images might not be perfect due to compression, but they still provide useful visual information.

No-brand machine 11.jpg
Miscellaneous machine 12.jpg
Miscellaneous machine 13.jpg
Miscellaneous machine 14.jpg
Noble machine 15.jpg
Miscellaneous machine 16.jpg
Noble machine 17.jpg
Miscellaneous machine 18.jpg
Miscellaneous machine 19.jpg

POE Adapter

POE Adapter, also known as a Midspan, Power Injector, or PoE Charger, is a device that leverages Power over Ethernet (PoE) technology to transmit both power and data simultaneously over an Ethernet cable. This technology enables the delivery of electrical power along with data signals to powered devices (PDs) such as IP cameras, wireless access points (WAPs), and more, over a single Ethernet cable.

Applications

POE Adapters are widely used in scenarios requiring remote power supply and data transmission, such as intelligent security systems (IP camera surveillance), wireless network coverage (WAP deployment), VoIP telephony systems, and more. These applications often demand devices to be installed remotely without local power sources, making POE Adapters an ideal solution.

Selection Criteria

Compatibility: Ensure the POE Adapter is compatible with your network equipment, particularly in terms of PoE standards and power requirements.

Brand and Quality: Opt for reputable brands and high-quality products to guarantee stable and safe power supply.

Power Rating and Port Count: Choose a POE Adapter with the appropriate power rating and number of ports based on your specific needs.

Saf

Poe Adapter,Ubiquiti Poe Adapter,Carrier Poe Adapter,Poe Power Adapter

Guang Er Zhong(Zhaoqing)Electronics Co., Ltd , https://www.geztransformer.com