A Haixin TLM32V76, the fault is that the boot has sound and no image. Obviously, the backlight is out of order. The machine is not a separate high-pressure backlight. Instead, it uses a two-in-one LIPS power supply. Roughly stroking the circuit found that this is not the simple transformer power amplifier circuit, simply said that the back light power amplifier uses the 380V power supply generated by PFC boost. Measurements of 12V and 5V were normal. The backlight does not flash at all. Generally, the backlight circuit board is out of order. If the lamp tube is out of order, it will flash. (This is not a 100/100 statement. Please don't pat bricks without a helmet.) So, check the circuit first. No obvious abnormality was found in the measurement circle. Only one power transistor drives G pole to ground resistance. Remove the power field transistor, the repetition resistance value is normal, that is to drive the transformer part. Guangzhou Chuangliyou Machinery Equipment Co., Ltd. specializes in the production of LCD maintenance equipment, pulse screen presses, large-scale screen presses!
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Video Maintenance of TLM32V76 Black Screen of Hisense LCD TV
Source： Time：2018-09-20 14:09:32 views：
A Haixin TLM32V76, the fault is that the boot has sound and no image. Obviously, the backlight is out of order. The machine is not a separate high-pressure backlight. Instead, it uses a two-in-one LIPS power supply.
Contact us
ADD：101, No. 2, 4th Street, Pingshan Industrial Zone, Pingshan 2 Village, Shibi Street, Panyu District, Guangzhou, Guangdong, China 
Hotline：+8615915756993
Manager Lee 
E-Mail： lee@chuangliyou.com 备案号：粤ICP备17091821号-1
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