This afternoon, I helped a colleague repair a Skyworth LCD TV 37L02RM, image control and so on. There is no sound, no TV or AV, but there is music every time I turn it on. Lens Hood Silicone Rubber Plugs Nantong Boxin Electronic Technology Co., Ltd. , https://www.ntbosen.com
Measuring 5V, 12V (11.35), 24V (23.30) of the power board is basically normal, and all capacitors are not pregnant. Transfer the line of sight to measure the voltage of the motherboard, 1.2V, 3.3V, 5V, etc. are all normal. I feel that I can't get started. I will take the smoke slowly. Since the music is on, the image is normal. It proves that the amplifier is good. Wouldn't it be data clutter? Try to empty the user memory (93C32). Since there is no programmer in the same store, I decided to take a risk. In the off state, use a screwdriver to short the 5 feet and 6 feet of the memory (93C32), then turn it on, and then take off the screwdriver after a few seconds. The program sound is finally here.