Before I started, I had to take a look at it. This Hisense can be said to be the one that has done the most bitter work since it was done in Jiawei. Why? ! No hurry, the masters are invited to sit in the seat; later, the consequences are due.
Model: Hisense TC2506CH
Fault: The red light is on and not on the basis of your own consistent workflow: look, smell, ask, cut. I learned that the machine can be turned on occasionally but then it lights up but does not turn on...
The machine is 俺 俺 修 修 修 修 修 , , , , , , , , , , , , , , , , , , , , , , , , But as soon as I arrived at the faulty machine, I was paralyzed; my heart was paralyzed. The storefront of the watch was in a one-meter-wide alley. I saw the 'surgery' on the tripod in the air-conditioning installation. Goods; do not lift down this how to repair it! The watch said: It doesn't matter, I have already laid the ladder and lights for you!
It’s drunk to see it like this, no way... Captain! The cover removal test begins...
After some repair welding + cleaning, disconnect the line to connect the bulb, um, the transformer secondary several electrolytic capacitors are OK, + B voltage is only about 76V, CPU power supply OK, power amplifier is also normal. That's weird, it seems to be a standby situation? ! But the remote control can't be turned on, check the standby circuit and there are no damaged parts. Is it a big block? Or is the picture tube hanging? Hey, don't think about the voltage, the problem with the block wood can be ashamed. 4.43 The crystal oscillator has also been replaced or not, and it feels back pain for a while, (it is standing on the bamboo ladder for overhaul ); So I went down and thought about it, hey, there; Ma Li dropped the ladder and found the goods.
After careful cleaning, I found that this 32.768kHz crystal oscillator has been rusted, but there is no 32.768 on hand. Therefore, the rust-breaking part is cut off with a cutting pliers and then soldered, and the back is also The two 18P small capacitors have also been replaced with new ones. It is the time when the electronic emission sounds, the filament lights up, and the screen machine logo comes out.
After the input signal is connected, the picture sounds are normal and normal, and the machine is repaired. Back to back pain + stomach is also hungry but...
Postscript: In the end, there is a ticket, there is only one leftover leftover; o()<))o 唉, don’t say, it’s tears Everyone can understand
Spiral Rotor Flowmeter,marine helical rotor flowmeter,lzx type marine helical rotor flowmeter
Taizhou Jiabo Instrument Technology Co., Ltd. , https://www.taizhoujbcbyq.com