[Solved] Panasonic TX32A300E LCD TV - No Picture, Sound OK, All Inputs Affected (HDMI, EURO, VGA)

Hello.
Panasonic TX32A300E LCD TV, the warranty expired two months ago and the image fell yesterday. Does this type have that?
The sound is correct. No image occurs regardless of which input the signal is fed to (HDMI1, HDMI2, EURO, VGA.
What can I check before submitting to the website?
I didn't find any posts about this model.

Good morning, check all the capacitors on the power board. And even if they look good prophylactically replace them, that's penny matters because there are 6 of them there. We'll wonder later and keep on reading.

I unscrewed the TV - the capacitors look OK, I checked the voltage that exits the matrix power supply and was "under load" 3V: /, without a load of about 30. METEX ME-32 universal meter. In the evening I will start doing it again, I do not have capacitors with similar parameters on hand.

Added after 6 [hours] 4 [minutes]:

I read a little forum about monitors and other TVs, incl. such topic:
https://www.elektroda.pl/rtvforum/topic3403212.html
in which I found a tip to light the matrix with the lamp / halogen when the TV is working / After the backlight it looks like the matrix is working and only (or maybe until) the backlight has gone down. According to the topic above, the fluorescent lamp or its connection is damaged. If it succeeds, today I will try to "match" this fluorescent lamp.
Do you have any suggestions on what to look for where to look for damage ??? The fluorescent lamp itself or connectors, ???

Or maybe an inverter?
For starters, solder all of February under the inverters, even if they look good.

Hello, I'll join the thread.
I also got a TV from Grandma with a similar symptom as in the subject. The TV has perfect sound. However, there is no backlight. The rear casing has been removed, on which there are two strips of 11 diodes each. On the upper strip there is a short circuit on 2 diodes on the lower one I can not locate but the diodes are burnt. Where you can get all the functional strips. What is the symbol of these LEDs to order?

I don't know yet if the driver is working properly. After switching on the television, the voltage at the output of the power supply for the LEDs increases to about 40V. Then it slowly drops to 0. Is this how any protection works in this driver.

Power supply model - VESTEL 17IPS71
Mosfet - FDD120AN15A0
System: MPS1442

What voltage are the diodes on? I put in the usual LEDs as they appear in the LED strips that start the TV is a short flash and the LEDs that have been replaced get short circuits. then at the start there is a short flash but darker.

Two LEDs illuminated on the TV.
Due to lack of time, the TV was sent to the service which replaced the diodes and deleted 120 PLN