30HF85 no lights no power

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.

This set is pretty complicated my friend. You will need to check the standby power supply on the F board for the proper standby voltages. If they are good, your problem is most likely on the G1 main power supply board. I do have a service manual for this set if you know how to read them. It will save you about 30 bucks, if you want it from me. Leave your e-mail address and I will share it with you. Good luck with this repair.

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).

could be from Flyback Transformer

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.

have u try testing the ac outlet first for correct voltage then inspect the line cord for defects before diving for internal repair

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.

Try this (may not work):

1. UNPLUG power from TV at wall outlet.
2. Turn ON the TV (with no power cable plugged in).
3. Plug power cable back in (at wall outlet)
4. Turn ON TV (don't use remote this time).

Hope this works!

Hi

maybe you have defective power cord or in your outlet, look first. or maybe you have defective unregulated power supply.

did you see the standby light?


Thanks!

I had the same problem with my remote...over time it slowly stopped working. (sorry for poor terminology) I noticed that one of the battery terminals was corroded and that the metal connecting the battery to the board was completely gone. I simply swapped this out with one from another remote and now its working fine. Seems the only issue is that the battery was not connected.

I hope this helps.