(SONY) Liuzhou Sony 4K HD LCD TV repair-Health New Hotline&

Sony () inch full HD network smart LCD TV
Liuzhou Sony TV after-sales customer service hotline inch full HD network smart LCD TV
Liuzhou Sony after-sales maintenance phone number:
Special maintenance number:
Sony Detection of common TV faults:
. If there is no signal on the blue screen at startup, the image is flickering, etc., it is usually a problem with the tuner of the TV.
.The TV screen appears black or there is sound but no image. This kind of failure is usually caused by the high-voltage board, or the backlight power supply voltage output is abnormal, the voltage on the signal line is unstable, the signal line is not plugged in, and the chip output signal is incorrect. Stablize.
. The possible reasons why there is image but no sound are: the power input to the sound effect and power amplifier circuit is abnormal; the TV speakers are not plugged in properly; the sound effect and power amplifier circuit have weak soldering or short circuit.
.The image appears blurry, white screen, black screen from time to time or screen display failure, horizontal lines, bright lines, vertical lines appear on the screen and the brightness of the image cannot be adjusted, etc.
The reason why the monitor screen cannot light up may be: the power board and motherboard are not working properly, the backlight spot power supply and the backlight control socket connection cable are not plugged in properly, and the backlight power supply is not working properly