The blurring of television images is one of the most common types of TV faults at the moment. Many consumers may experience such phenomena when they turn on the TV for the first time. So what is this all about? Next, I will share with you the six common reasons for the blurryness of television images and the corresponding solutions.
Cause one: The tube socket of the kinescope is subject to moisture oxidation leakage.
This phenomenon usually occurs during the wet rainy season with high humidity. After a period of time when the television set was used, the temperature was increased, the moisture was emitted, and the voltage increased. Therefore, the blurred situation improved, and the picture became clear. The kinescope socket is referred to as "pipe socket" at the end of the picture tube.
Solution:
Use a hair dryer to blow the back cover of the TV for 2-3 minutes to speed up the evaporation of moisture.
Cause two: aging of picture tube holders
The aging of the tube holder of the kinescope causes the voltage of the kinescope to drop, causing the television screen to be continuously blurred.
Solution:
Please repair the master to replace the new picture tube header, the maintenance cost is generally within tens of yuan, if your own hands-on ability will be more savings, cost about 10 yuan (the price of the tube holder), but the premise is their own Hands-on ability is stronger.
Reason 3: The problem of focusing voltage
A few hours after the TV is turned on, the image is blurred, the remote control is normal, the contrast brightness is adjustable, and the screen display character is normal. The screen display character is definitely not the aging of the picture tube. The boot is as blurry as a few hours, the on-screen characters are normal, and it is not possible to be a socket. Open the cover to adjust the focus voltage, do not operate outside, there is high pressure.
Solution:
After removing the tailstock of the picture tube, it can be seen that there is a green copper rust at the welding point of the focusing lead. This phenomenon can be seen as the leakage of the tailstock of the picture tube. At this time, only a new picture tube can be purchased and replaced.
Cause four: CRT aging
The aging of the picture tube causes the image to be excessively static at the moment of power-on, resulting in blurred images, and the image of the static flow stabilization is naturally clear.
Solution:
Replace the picture tube.
Reason 5: TV magnetization
After the TV is used for a period of time or after a malfunction, it will appear red and green, and it looks very uncomfortable.
Solution:
Try to move the TV's place, destroy the magnetic field formed by the TV, so that you can solve the TV image blur problem.
Reason six: related to current
When the TV is turned on, the image is blurred, which is related to the current, and the working current of the amplifier is affected by the current.
Solution:
Try to replace the high frequency head
Summary: According to the author's investigation, the most common cause of TV image blurring is the ageing of television tube receivers. At this time, the specific performance of the TV is just beginning to display a black screen, and then slowly it will have light. , Gradually have images, then see people, see people again, see the words.
Cause one: The tube socket of the kinescope is subject to moisture oxidation leakage.
This phenomenon usually occurs during the wet rainy season with high humidity. After a period of time when the television set was used, the temperature was increased, the moisture was emitted, and the voltage increased. Therefore, the blurred situation improved, and the picture became clear. The kinescope socket is referred to as "pipe socket" at the end of the picture tube.
Solution:
Use a hair dryer to blow the back cover of the TV for 2-3 minutes to speed up the evaporation of moisture.
Cause two: aging of picture tube holders
The aging of the tube holder of the kinescope causes the voltage of the kinescope to drop, causing the television screen to be continuously blurred.
Solution:
Please repair the master to replace the new picture tube header, the maintenance cost is generally within tens of yuan, if your own hands-on ability will be more savings, cost about 10 yuan (the price of the tube holder), but the premise is their own Hands-on ability is stronger.
Reason 3: The problem of focusing voltage
A few hours after the TV is turned on, the image is blurred, the remote control is normal, the contrast brightness is adjustable, and the screen display character is normal. The screen display character is definitely not the aging of the picture tube. The boot is as blurry as a few hours, the on-screen characters are normal, and it is not possible to be a socket. Open the cover to adjust the focus voltage, do not operate outside, there is high pressure.
Solution:
After removing the tailstock of the picture tube, it can be seen that there is a green copper rust at the welding point of the focusing lead. This phenomenon can be seen as the leakage of the tailstock of the picture tube. At this time, only a new picture tube can be purchased and replaced.
Cause four: CRT aging
The aging of the picture tube causes the image to be excessively static at the moment of power-on, resulting in blurred images, and the image of the static flow stabilization is naturally clear.
Solution:
Replace the picture tube.
Reason 5: TV magnetization
After the TV is used for a period of time or after a malfunction, it will appear red and green, and it looks very uncomfortable.
Solution:
Try to move the TV's place, destroy the magnetic field formed by the TV, so that you can solve the TV image blur problem.
Reason six: related to current
When the TV is turned on, the image is blurred, which is related to the current, and the working current of the amplifier is affected by the current.
Solution:
Try to replace the high frequency head
Summary: According to the author's investigation, the most common cause of TV image blurring is the ageing of television tube receivers. At this time, the specific performance of the TV is just beginning to display a black screen, and then slowly it will have light. , Gradually have images, then see people, see people again, see the words.
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