Is there a reset

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.

When your flash light (I mean the part that gives the flash) or the capacitor that stores the power for the flash are defect. you won't see a flash. When a red light comes on, when actually the flash should fire, the most likely the capacitor is defect. The electronics sensed it could not reach the voltage needed to fire the flash.
It also could mean your battery can't deliver enough to charge the capacitor, but is that was the case the battery indicator should tell you.

This is not a split system a/c unit guys. Look at the picture. The blinking light means the air filter may need cleaning. Reset power to turn it off.

REPLACE LAMP !!!
Buy an Orginal Replacement Lamp.

tv will not power on. red light on switch blinks. power relay clicks, but no picture or sound.

unplug it, and let it set for a minute or 2, then try it again...if it does it again hit the power button again to turn it back on...also once the the tv turns on make sure you reset the counter for the bulb..that will also cause problems...to reset the counter press the (-) volume on the tv while holding down the (-) press spilt,pip on the reomte...the lamp will reset and the indicator will go out

A reset won't fix this. The standby light should be blinking a repeated count with a 3 second pause inbetween. Post that count here. That will indicate the circuit/condition that is preventing the set from turning on.

Thanks,
Dan

when You changed the bulb  you have to reset the bulb timer , that why the light is flashing red , look at your manual and reset the timer , and the picture , changed bulbs myself before i found what the problem was , 

Bad Convergence circuit , replace 2 STK392-110 & fuse will take care the problem