What does a broken LCD TV fluorescent lamp show?
1. What happens when the TV tube is broken
TV screen is black
2. What are the characteristics of the broken display lamp
Either it doesn’t light, or sometimes it doesn’t light. Black screen, intermittent black screen.
Generally speaking, as long as you see that the LCD screen is seriously color biased and the brightness is reduced a lot, you can judge that the lamp tube inside it is invalid and need to replace it with a new lamp tube
3. What is the phenomenon that the TV fuse is burnt out
First find the fuse and confirm whether it is fused. If it is, observe whether the wall of the fuse is blackened. If it is blackened, it means that the circuit has short circuit, breakdown and other faults; If the safety tube wall is not blackened, replace it with a safety tube of the same model
The power board has short circuit and overcurrent.
What does a broken LCD TV fluorescent lamp show?
4. What happens when the TV picture tube is broken
The picture tube is broken and the TV has no image, but it can still be turned on or off, and the TV still has accompanying sound.
What you said should be that the high voltage bag behind the display tube is broken. Don’t move around casually, even if the high-voltage bag is cut off, it will hurt people. The cost of repairing this situation would be very high and not very cost-effective.
No brightness, no contrast, sound.
No brightness, no contrast, sound. Slowly close your arm to the screen, without the feeling that the sweat on your arm is pulled towards the screen
What does a broken LCD TV fluorescent lamp show?
5. How to identify the aging of LCD TV tubes
Is it necessary to prepare some lamp tubes for standby? How many types of lamp tubes are available
The aging of LCD TV tubes is generally characterized by dim color and yellowing.
Take a good one and replace it.. If OK, it is old or broken PS:… I’m a novice.. In the past, the LCD display was replaced…
What does a broken LCD TV fluorescent lamp show?
One by one is not the way. If there is something hard to remove, it will be bad. Look forward to a good way
Use a mechanical meter to measure the two ends of the light, about 800V – ——– 1000V AC, indicating a slight difference between different multimeter