What causes the tv not come on? - Televison & Video

This issue with losing picture and sound on your Viore TV after a certain amount of time can be caused by several things:
Overheating: If the TV is overheating, it may cause the TV to shut off to prevent further damage. This is usually caused by poor ventilation or dust buildup in the TV. Clean the dust out of the TV and ensure that it has proper ventilation.
Power supply issues: If the power supply is not functioning correctly, it can cause the TV to turn off and then back on. You can try checking the voltage readings at the power supply to determine if this is the issue.
Bad capacitors: Capacitors can go bad over time and cause the TV to shut off and then back on. You can check the capacitors on the TV's power supply board for any signs of swelling, leaking, or rust.
Main board issues: The main board of the TV could be malfunctioning, causing the TV to shut off and then back on. If this is the case, you may need to replace the main board.
If you're not comfortable with the above steps, it's best to contact a qualified repair technician for assistance.

A 5" wide dark band in the middle of a Samsung Smart Series 7 TV screen could be caused by several issues. Here are a few potential causes and solutions:

1. Faulty LCD Panel: If the LCD panel is damaged, it may cause a dark band in the middle of the screen. Unfortunately, a damaged LCD panel usually requires a professional repair or replacement, which can be expensive.
2. Loose or Damaged Connection: A loose or damaged connection between the TV's internal components could cause a dark band on the screen. Check all of the cables and connections between the TV and any external devices to ensure they are properly connected and undamaged.
3. Picture Settings: The dark band could be caused by the TV's picture settings. Try adjusting the picture settings to see if it improves the image. For example, you could try adjusting the brightness, contrast, or sharpness.
4. Software Update: A software issue could cause a dark band on the screen. Check if there is a software update available for your TV and install it if necessary.
5. Magnetic Interference: If there is a strong magnetic field near the TV, it could cause a dark band on the screen. Try moving any magnets or magnetic devices away from the TV to see if it improves the image.

If none of these solutions work, it may be best to contact a professional TV repair technician who can diagnose and fix the issue. They can ensure that the repair is done correctly and safely, and can help prevent further damage to the TV.

There could be a number of reasons why your Alba TV is turning off after just a few seconds. Some common causes include:

1. Power supply issues: If the power supply to the TV is not stable, it can cause the TV to turn off. Check if there are any loose connections or faulty cables.
2. Overheating: If the TV is overheating, it can shut off to protect itself. Ensure that the vents and fan are clear of any obstructions and the TV is not in a location that is too hot.
3. Faulty remote: Sometimes, a faulty remote can cause the TV to turn off by itself. Try removing the batteries from the remote and see if the issue persists.
4. Faulty hardware: If the TV's hardware is faulty, it can cause the TV to turn off. This could be due to a number of reasons, such as a defective power supply or a malfunctioning circuit board.

If none of these solutions work, it's possible that the TV is defective and needs to be returned for a replacement or repair.

Shimmering can be caused by a number of things.

The first that springs to mind is electromagnetic interference. Speakers, amplifiers, florescent lights in close proximity can cause this. I even saw a TV that had been fixed to a wall adjoining the next door neighbours who had put his TV in exactly the same position and the interference passed through the wall.
Try moving the TV location away from all sources of interference (including Cable boxes, Video recorders, etc.) Does the problem change or go away?
Is the TV grounded properly? Interference needs to be siphoned off to a ground. if you put your hand around the cable that feeds the TV a video signal does the problem change or reduce?

Another issue may be some form of video post-processing going on causing the shimmering. Some forms of image smoothing software built into the TV can cause this. So try shutting down any features on the TV, does the problem go away?

On a big TV that is fed a low resolution video stream you will always see what the industry calls "artefacts". These are distortions caused by the transport compression of the video signal. there is no way around these except for receiving a better resolution picture stream.

The tv problems and causes are 100% is the tv colors wheel it is causes and the tv problems.The tv are having humming or loud buzzing noises sounds are the causes of the tv colors wheel going off and out control of it motor mount and spinning in at high RPM speed and different colors showing up or flahes of black and white color in the tv back ground.The tv colors wheel must have to be replace.Best hire a tv tech to do the replacement of the tv colors wheel,because have to take out many mechanicals parts before can even come to the tv colors wheel is self to replace it.

The screen flicker than go blank,does it still have power to the tv set?Yes,than this cause only can be causes by only 2 boards in the tv can causes this problems,if tv power still stable for the set.The T-CON board it shorting out and dying for this problems to happen or worst case causes the Main board tv Tuner signal board it dying.The T-CON board the priced it is cheaper and could cause this problems too.Tries change this T-CON board first,see what happen.This board T-CON board sit at the bottom in the middle of the LCD screen panel to decodes pictures pixel before it go onto the LCD screen panel.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish T-CON board for the replacement.

Not possible.Tv have damages to it LCD screen panel by an object or a person have causes by forced or putting pressure to the tv LCD screen panel itself to causing colors picture pixels and it radiation to died to causing this problems.Sorry it time to buy a new tv,because by replacing the tv LCD screen panel itself will cost u the same as a new tv.Tries buy a new tv from the VIZIO tv corporation directly return the damages LCD panel tv to them,u could get a 5 or 10% off of the tv prices.

Many RCA TV sound problems are caused by SAP function being activated by TV station equipment that converts Analog TV signals to HD signals. Accidental pressing of the wrong buttons on your remote can also cause this problem.

The incorrect conversions causes the Audio settings to be changed from Stereo to SAP by the received signal.

Solution is to go to Audio set-up in customer menu and change settings from SAP to Stereo. If you find that settings are wrong, change them to "Stereo". Do channel scan if you are using the TV tuner/remote to select channels. Turn off the TV and unplug for 60 seconds. Check the settings again and reset if required.

This problem may re-occur when you select the VHF channel, satellite channel or cable box channel that is causing the problem. It is not a TV fault that can be repaired. The problem is caused by the incorrect incoming signal.

SAP is Second Audio Program, used for second language transmissions.

Second cause may be that the speakers have been turned off in the audio set-up menu.

easyab

Resetting the TV
If the buttons on the remote AND the buttons on the TV case do not work (channels do not change and you cannot open or navigate the menu), the TV has stopped responding. Reset the TV as follows:

NOTE:
Some TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time.
1. Unplug the TV power cord from the power outlet.
2. Unplug any connected devices (DVD, Set-top boxes, etc...)
3. Press and hold the TV power button for five seconds.
4. Plug the TV power cord back into the power outlet and turn on the TV.
5. Open the on-screen menu to confirm that the TV is responding again.
6. Turn off the TV and reconnect the devices.
7. Turn on the TV.



LCD TV TroubleshootingThe defective LCD TV may have the following common symptoms:

Symptom: No picture on screen but LCD TV still has sound.
Solutions: The problem is cause by defective inverter. Replacing ivnerter will solve hte problem. Symptom: Screen flash on and off between 1/2 to a few seconds, but power indicate light stays on and TV still has sound.
Solutions: The problem is cause by defective inverter. Symptom: Blue Screen but no picture
Solutions: The problem is cause by defective Main Board(AD Board). In some cases, this problem may cause by the defective Screen Controller board. Thsi board is mounting on teh back of LCD TV Scree. Symptom: Power light stays on but no display and sound
Solutions: The problem is cause by defective Main Board(AD Board) or Power supply board. Symptom: No Power or Power indicate light does not lits
Solutions: The problem could cause either by defective Power supply board or defective Main Board(AD Board). Symptom: Screen is half dim and half bright
Solutions: The problem is cause by defective LCD Panel.It needs to be replace.


Hope it may help you;

Regards;
VOTIT

hi can you send me a tv diagram for sony tv model kv-27HFR cause there are components missing and...