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ShengZheng SAQCN Innovation technology Co,Ltd.

ShengZheng SAQCN Innovation technology Co,Ltd.

Several common faults of LCD display driver board

Common faults of LCD display driver board:1: Initialize the startup settings screen of the LCD display after booting up.2: Detecting input video signal, if no signal is detected, it will prompt "no signal input", or if the resolution is abnormal, it will prompt "out of frequency range", etc.

2025-09-24

How to repair a three-in-one motherboard in an LCD TV

The standard warranty for the three-in-one motherboard of an LCD TV is one year for the entire unit and three years for major components. How do I distinguish between major components and the entire unit/non-major components/such as the integrated circuit board of the LCD TV?

2025-09-21

Open switch power supply in stock, free delivery

Open switching power supplies are available in stock and free of charge. The working process of an open switching power supply is quite easy to understand. In a linear power supply, the power transistor operates in linear mode. Unlike a linear power supply, a PWM switching power supply operates the power transistor in on and off states. In these two states, the volt ampere product added to the power transistor/power device is the loss generated on the power semiconductor device.

2025-09-17

2025-09-11

What is a motherboard power charger?

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