Seeking Vestel 17MB180E Firmware for JVC TV Stuck on Logo or Rebooting

Hello guys!
I would appreciate your help for a Vestel 17MB180E (JVC TV) motherboard that gets stuck on the logo or sometimes reboots after approximately 2 minutes. The panel is: VES500QNDB-N2-N41. Is it possible to provide me with the firmware file to load it through the USB process?
Thanks in advance!

Tell me the TV model, my friend.

Hi there! I'm having a problem with the Vestel 17MB180E (Normande TV55SP). When plugged in to power, the red LED starts slowly blinking, then stays steady and doesn't respond to either the remote or the power on button. I tried to go into Update mode by pressing the OK button on the remote just after plugging it in. The mode boots up, showing an update error (which is okay since I don't have files on a USB stick), but at least it's showing a picture.
Any advice?

Here is the further investigation of the problem.
Sometimes I've managed to turn on the TV. It's just a rare occasion. But at least it does!

I've checked the output voltages from the power board. All is ok and steady except 5V Standby. As I can see it's designed to have only 12V stnby, as there is no components to provide 5V. All conversion goes in the motherboard.

1: 26.9-27.3V
9: NC
10-12: 12.18V





The next step was to check all the conversion and stabilization at the motherboard.
The input voltages stayed the same. As I said before there is no 5Vstby.


Here is the diagram, that served me as a reference.

So I tested chips outputs one by one:
Q101 - 12.15V then drops to 0 when T-con make a sound and goes back to 12.15V
Q104 - 5.1V
U101 - 5.15V
U113 - 3.36V
U105 - 1.54V
U106 - 0.99-1V
U102 - 3.37V
U120 1.796V

Didn't find U104 chip, even the numbers on the board. Not sure if it is necessary. For my understanding it is crucial to have CORE working.
For sure there is no U110, found letters near an empty placement.

There is a power diagram on the same paragraph. But I have no clue what to do with it since all outputs are ok.

Also they have mentioned a problem in the service manual. However I can't connect with UART device right now. Is it really that helpful?

Quote:

G. STANDBY ON/OFF PROBLEM
Problem: Device cannot boot, TV hangs in standby mode.
There may be a problem about power supply. Check main supplies with a voltage-meter. Also there may be a
problem about SW. Try to update TV with latest SW. Additionally it is good to check SW printouts via
Teraterm program. These printouts may give a clue about the problem. You can use HDMI1 for Teraterm
program connection.

I've given up.

The final thing I've done is debugging logs. See in the attachment. I can't read any helpful information from it.

Hello from Greece my friend. The model is JVC LT-50K8100. Thanks in advance!

Added after 55 [minutes]:

>>20956872

Hello from Greece my friend. The model is JVC LT-50K8100. Thanks

>>20956872 Hello from Greece, my friend. The model is JVC LT-50K8100. Thanks in advance!

Does anyone have the firmware? I searched many pages and can't find something. I seek also the firmware for Vestel 17MB180E.

I have a JVC LT55VU3100. When I turn it off with the remote and turn it back on, only the backlight comes on; the TV then freezes and stops responding to the remote or the power button, and displays no image. The only way to get it back to normal is to unplug it from the power and plug it back in, after which it works fine. It uses a VESTEL 17PW20.1 power supply board and a VESTEL 17MB180E mainboard.
Can anyone help me or provide the firmware so I can install it via a USB drive?