Tv will not turn on

To get your TV off standby mode, you can try the following steps:
Check the power source: Make sure that your TV is properly plugged into a working power outlet or surge protector.
Check the remote control: Press the power button on the remote control. Sometimes, the TV may be in standby mode due to a problem with the remote control. If the remote control is not working, try replacing the batteries or using a different remote.
Check the power button on the TV: If the TV does not turn on with the remote control, try pressing the power button on the TV itself.
Unplug and plug back in: Unplug the TV from the power source for at least 30 seconds and then plug it back in. This can reset the TV and may help to get it out of standby mode.
Check for a timer: Some TVs have a timer function that automatically puts the TV in standby mode after a certain amount of time. Check the TV settings to see if this feature is enabled.
If none of the above steps work, there may be an issue with the TV's hardware or software. In this case, it may be best to contact the manufacturer or a professional repair service for assistance.

Your RCA LED50B45RQ TV appears to have a problem with the display and audio.
When the TV is turned on and the remote is used, the standby light illuminates, and the screen flashes white on the left side without audio or video.
Various factors could be to blame for this problem.
A few troubleshooting tips are provided below:

1. Check the connections: Make sure that all the connections between your TV, cable box, or streaming device are securely plugged in.
2. Check the settings: Ensure that the TV is set to the correct input and that the cable box or streaming device is set to the correct output.
3. Check the backlight: Some TVs have an adjustable backlight setting. Ensure the backlight setting is turned on and set enough.
4. Check the cable: If the cable that connects the TV to the wall outlet is damaged, the TV won't turn on. Try unplugging the TV, waiting a few minutes, and plugging it back in.
5. Check the power supply: The power supply could be malfunctioning. It could be damaged or not provide enough power to the TV.
6. Check the Main Board: The main board controls all TV functions. It could be malfunctioning, which is causing the TV not to turn on or display correctly.
7. Contact the manufacturer: If none of the above solutions work, it may be necessary to contact the manufacturer for further assistance. Your TV may require repair or replacement.

The standby light on a Sony television indicates when the television is turned on and operating, or turned off and in "standby" mode. However, this light also serves a secondary function: indicating when there is a problem with the television by flashing. When the standby light begins to flash, there are two reset options that can be performed to resolve whatever issue it's indicating -- a power reset and a factory reset

POWER RESET
1. Turn off your TV

2. Unplug the television from the electrical outlet. If you're using a surge protector or power strip, disconnect the television from the strip itself. Only by disconnecting the power cord from the outlet can you ensure no power reaches the TV during the power cycle.

3. Leave the television without power for at least 60 seconds. This gives the television enough time for all components to power down during the power cycle

4. Plug the television back into the electrical outlet. If you're using a surge protector or power strip, plug the television directly into the wall outlet instead. The surge protector may otherwise interfere with the power-up cycle, especially if it is old or damaged.

5. Turn on the television. If the blinking standby light continues, you'll need to move on to the factory reset process.

FACTORY RESET

1. Turn on the television.

2. Press and hold either the "Reset" or up arrow button on the remote control.

3. Press and release the "Power" button on the front of the television, while keeping the "Reset" or up arrow button on the remote depressed.
4. Release the "Reset" or up arrow button.
5. Allow the television to reset after the "Reset" message appears on the screen.
6. Make no adjustments to the television for at least one minute after the reset has completed. This is to allow the television time to finish auto-configuration and initial set up.
7.Turn off the television and unplug the power cord from the electrical outlet.
8. Wait ten seconds, then plug the television back into the electrical outlet and turn on the TV.
9. Follow all on-screen instructions to complete setup. These are the instructions displayed the first time you set up the television, for configuring channels, menu language, time, display properties and more.

Plug the power cord directly into a wall power outlet, and make sure that the standby light is lit (turn it on/off manually to see if anything changes). If there isn't any light, then it's most likely broken.
If the TV works again, being plugged into the power outlet in the wall, then the problem is with the cable box (i bet you figured that out too).

Need to know how many times the led is blinking.

Try this link for more information

Re: tv kdl-55ex620 red light blink 8 times Do a Power Reset. 1. While the TV is off, unplug the power cord of the TV from the electrical outlet. 2. Let the TV remain without power for 60 seconds. 3. Plug the power cord back into the electrical outlet. (If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.) 4. Turn on the TV. 5. When the TV powers on and a picture is displayed, reset the TV to factory default settings.

• If the Reset message does not appear and the TV turns off and on, begin again from step 5.

• If the standby light begins blinking eight times, return to step 1.

6. After the Reset message appears, allow the TV to reset. Do not press any buttons on the remote control or on the TV and do not make any other adjustments for 1 minute. 7. Unplug the power cord from the electrical outlet. 8. Allow the TV to remain without power for 10 seconds. 9. Plug the power cord back into the electrical outlet. 10. Turn on the TV.

• The initial setup screen displays if the above procedures were performed correctly.

11. Follow the on-screen instructions to complete the initial set up. 12. Perform a system software (firmware) update.

Hi,
The Standby/Power light of the TV blinks when there is any internal malfunction in the TV.
The self-diagnostic function of the projection TV will cause the STANDBY light to blink or flash when the television detects an issue. The number of times the STANDBY light flashes corresponds to a specific issue. As per the two examples below, some of the issues may be resolved without the need for service.
If the STANDBY light flashes three times in sequence, the lamp cover is not securely attached. Reattach the lamp cover to resolve this issue.
If the STANDBY light flashes four times in sequence, the TV may be overheating. To resolve this issue, ensure that the back of the TV is well ventilated.
If the flash sequence is not listed above or the light continues to flash, follow the steps below to perform a power reset:
Try the following steps to check if the issue can be resolved.
Turn off the television.
Unplug the television power cord from the electrical outlet.
Let the television remain without power for 60 seconds.
Plug the power cord back into the electrical outlet.
If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.
If the issue continues to occur, service may be required.

Thanks for using Fixya.

Hi,
The Standby/Power light of the TV blinks when there is any internal malfunction in the TV.
The self-diagnostic function of the projection TV will cause the STANDBY light to blink or flash when the television detects an issue. The number of times the STANDBY light flashes corresponds to a specific issue. As per the two examples below, some of the issues may be resolved without the need for service.
If the STANDBY light flashes four times in sequence, the TV may be overheating. To resolve this issue, ensure that the back of the TV is well ventilated.
If the flash sequence is not listed above or the light continues to flash, follow the steps below to perform a power reset:
Try the following steps to check if the issue can be resolved.
Turn off the television.
Unplug the television power cord from the electrical outlet.
Let the television remain without power for 60 seconds.
Plug the power cord back into the electrical outlet.
If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.
If the issue continues to occur, service may be required.

Thanks for using Fixya.

I'm assuming that you are powering the TV off with the remote, not by shutting off a device (such as a home theater system that it is plugged into) and having it disconnect the power from the cord. if this is how it is shut off, that will be your problem.

Likewise, you may have plugged the TV into an outlet that is operated by a wall switch. These are typically found in rooms that do not have an overhead light, and are designed to control a table lamp. Usually, the receptacle will have one outlet that is on all the time, and the other controlled by a wall switch. Check to make sure that the outlet that the TV is plugged into remains on all the time - regardless of the position of any wall switches.

The solution to both of the above issues is to plug the TV into an outlet that is on all the time. The interruption of household power to the TV is most likely causing the memory loss of the settings in the TV.

The other possibility may be the way you are shutting off the TV each night. Some TVs have an on / off function that works with the remote, but only if the standby power is on. If the standby power is off, the remote will not be able turn the TV on. Some manufacturers use different colored indicating lamps for Off, Standby On and TV On.

Without knowing your brand and model TV, I can't go deeper than that. You'll need to consult your TV manual to see if and how your TV works - or provide the brand and model info so we can see if we can find a solution if none of the above works for you. I hope this helps & good luck.

Hi,

The Standby/Power light of the TV blinks when there is any internal malfunction in the TV.
The self-diagnostic function of the projection TV will cause the STANDBY light to blink or flash when the television detects an issue. The number of times the STANDBY light flashes corresponds to a specific issue. As per the two examples below, some of the issues may be resolved without the need for service.
If the STANDBY light flashes three times in sequence, the lamp cover is not securely attached. Reattach the lamp cover to resolve this issue.
If the STANDBY light flashes four times in sequence, the TV may be overheating. To resolve this issue, ensure that the back of the TV is well ventilated.

If the flash sequence is not listed above or the light continues to flash, follow the steps below to perform a power reset:
Try the following steps to check if the issue can be resolved.
Turn off the television.
Unplug the television power cord from the electrical outlet.
Let the television remain without power for 60 seconds.
Plug the power cord back into the electrical outlet.

If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.

If the issue continues to occur, service may be required.

Thanks for using Fixya.

Hi,

The Standby/Power light of the TV blinks when there is any internal malfunction in the TV.
The self-diagnostic function of the projection TV will cause the STANDBY light to blink or flash when the television detects an issue. The number of times the STANDBY light flashes corresponds to a specific issue. As per the two examples below, some of the issues may be resolved without the need for service.
If the STANDBY light flashes three times in sequence, the lamp cover is not securely attached. Reattach the lamp cover to resolve this issue.
If the STANDBY light flashes four times in sequence, the TV may be overheating. To resolve this issue, ensure that the back of the TV is well ventilated.

If the flash sequence is not listed above or the light continues to flash, follow the steps below to perform a power reset:
Try the following steps to check if the issue can be resolved.
Turn off the television.
Unplug the television power cord from the electrical outlet.
Let the television remain without power for 60 seconds.
Plug the power cord back into the electrical outlet.

If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.

If the issue continues to occur, service may be required.

Thanks for using Fixya.