TV repair Turned Tv on one day and no picture or sound but red power light is on.

1. Why hisense TV red flashing power light has sound but no picture
There could be a few reasons why your Hisense TV has a red flashing power light but no picture. It could be an issue with the TV itself, the power supply, or the input signal. Let's take a look at each of these possibilities in turn.

2. How to fix hisense TV red flashing power light has sound but no picture

If your Hisense TV has a red flashing power light but no picture, there are a few things you can try to fix the problem. First, check to make sure that the power supply is plugged in and that the TV is receiving power.

Next, check the input signal to make sure that it is compatible with the TV. Finally, if the TV itself appears to be the problem, you can try resetting it.

3. What to do if hisense TV red flashing power light has sound but no picture

If your Hisense TV has a red flashing power light but no picture, there are a few things you can try to fix the problem. First, check to make sure that the power supply is plugged in and that the TV is receiving power.

Next, check the input signal to make sure that it is compatible with the TV. Finally, if the TV itself appears to be the problem, you can try resetting it.

hi make sure the lamp door is securely fitted has there is a safety switch, thanks

shaun

Ur DM power board is dead,must be replaced.Try this
website for the board.Tv repair World.com.

Just a thought, but check all of the pico fuses for a blown fuse. The pico fuses look like a small yellow resistor. Some Hitachi's are famous for having a blown hi-volt ceramic capacitor and a blown pico fuse.
I think the red led on is a short protect indicator, but I could be mistaken.

how old is your tv?? ours was 2 1/2 yrs old it was a 40in lg hd ready lcd tv it just crackled and turned off one night same as yours it would turn on but with no picture or sound....we took it for repair and they said it was something inside that is basically impossible to fix...it would have cost more that the tv itself. BUT trading standards say a brand new tv should last upto 3yrs...you need to get a free qoute nd if they cant fix it contact trading standards and the tv MANUFACTURER not the shop where you got it....you NEED a reciept to do this for proof of when you purchased it...hope this helps :0)

In about 90% of the time the power supply is defective if the TV fails to power ON.
I repair these power supplies, if you need further assistance write to [email protected]

TV always has high voltage shock risk while repair. As you said you are not familiar with TV repair so better to handle repair person this issue.

Problem: Samsung LTM1755B with only a blinking yellow LED when you try to turn it on.

Solution: I just had one of these come in. I opened it up, and found the U501 capacitor a little suspicious looking, in that it had a deformed top. It was a 470uF 16V electrolytic 105degC 10mm x 12mm. I replaced it with a very good quality 1000uF 16V electrolytic 105degC 10mm x 16mm Nichicon UHN1C102MPD. After that repair, when I tried to turn it on, the LED was yellow for a second, then green, then I got a picture, and it appeared to work great. I then asked the owner a week later how it was working, and they said it was working just like new!

Sounds like a main STR regulator problem