How to repair the black screen of Changhong LT37710X LCD TV?-Troubleshooting-php.cn

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How to repair the black screen of Changhong LT37710X LCD TV?

王林

Feb 24, 2024 am 10:55 AM

php Editor Xinyi introduces to you the troubleshooting method for the black screen problem of Changhong LT37710X LCD TV. When an LCD TV has a black screen, it may be due to a variety of reasons, such as wiring problems, power failure, backlight failure, etc. When performing maintenance, it is necessary to gradually investigate possible causes and take appropriate measures to repair the fault. Through this article, you will learn how to effectively troubleshoot the black screen problem on Changhong LT37710X LCD TV and restore your TV to normal operation.

How to repair the black screen of Changhong LT37710X LCD TV?

Changhong LT37710X LCD TV has a black screen. According to the problem you mentioned, the black screen is the kind with sound and no shadow. First check the 24V to see if it is there. If the 24V is normal, check the backlight BL ON to see if there is 3.3V. Or 5V. If these two voltages are normal, there is usually a problem with the high-voltage board. Generally, the transformer of this kind of machine is prone to problems, and replacement can usually solve the problem.

Changhong lt37710 indicator light is on but cannot be turned on?

1. It may be caused by the TV not being connected to the power supply or the power switch not being turned on. You can check it one by one to make sure the TV is connected to the power supply and the power switch on the TV is turned on. Back to normal.

2. If the TV indicator light still does not light up after the power is connected and the power switch is turned on, it means that the TV is caused by hardware failure, such as power failure, including fuse, rectifier bridge, The 300V filter capacitor, power switch tube, power management IC, rectifier output diode, filter capacitor and other components are faulty; or the driver board power supply voltage stabilizing circuit is faulty; in this case, you need to contact the TV’s after-sales service for comprehensive inspection and repair of the TV. can be solved.

Does Changhong TV lt37710x have a universal remote control?

Hello, Changhong TV lt37710x can use a universal remote control, but you need to confirm whether the universal remote control supports this model of TV. It is recommended to check the manual of the universal remote control or search for relevant information on the Internet.

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