17MB82S : Detected but no signal

[novak2]

Hello there.

First, excuse me, because english is not my mother language.

So, I have a Tucson TV model TL2204B274 for many years now, and the HDMI never worked.
Let me explain.
I have a laptop with an HDMI output (on Debian Buster), so I can test the output. When I connect via HDMI, it IS detected as a Vestel TV (which is obvious, since the internal board is a Vestel 17MB82S).
But, when I switch source to HDMI ON the TV, it says "No signal" (with the 5min timer).

The sub board which contains the LED and the IR receiver have been broken years ago, but I managed at least to resolder the IR receiver, so remote control works fine.

I tried to update the firmware with the correct instructions, but it DOESN'T update (or at least I don't know, since I don't have the LED.

Note also that I manage to have a "new software" but was a bad one (glitchy yellow screen), but only on the USB, and it only worked ONCE. I managed to find the correct 17MB82S update PKG file, but I CANNOT boot on it.

So, what is going on with my HDMI ? And also how can I update the firmware since it doesn't boot (or once within thousands of trials) ?

Thanks !

[Diah]

Re: 17MB82S : Detected but no signal

so my questions.. what do you have on screen when you first time plug your tv on .. please post the result over here with photo

[novak2]

Re: 17MB82S : Detected but no signal

Nothing particular, TV works fine, but I just cannot boot the "upgrade_loader.pkg" from the USB and HDMI does not work even if it is detected.

And what do you mean by "first time" ?

[novak2]

Re: 17MB82S : Detected but no signal

No one for any help ?
Tested different things but still cannot upgrade 17MB82S (Vestel) firmware...

[yokoono]

Re: 17MB82S : Detected but no signal

Type MENU and 4725 and put a picture.

[novak2]

Re: 17MB82S : Detected but no signal

I'm at work right now, but in 2h you will have it.
What I remember if it can help :
Version is 0.7.8
Over 3000 hours of life time.
But just wait for the picture thanks

[novak2]

Re: 17MB82S : Detected but no signal

Here you have it, the service menu.

[yokoono]

Re: 17MB82S : Detected but no signal

Latest software version: 1.3.7. Type MENU and 1505 and install.

[novak2]

Re: 17MB82S : Detected but no signal

Thanks it worked !
But still no HDMI output...

[novak2]

Re: 17MB82S : Detected but no signal

Maybe it is some kind of Hardware failure. But it is very strange since my laptop detect the HDMI as a Vestel monitor....
But thank you very much for the 1505 code !
And a small and not that important question :
One time, with an "upgrade_loader.pkg" which wasn't the correct one, I manage to boot the TV in a strange mode. It was all yellow glitch screen, but it has some fadeout when I push buttons and all. Also, it didn't install anything on the TV, I just shut down and remove the USB and all was back to normal. Any clue of what that is ?
I did it with the "Turn on the TV while pressing OK on RC" method.

[budwich]

Re: 17MB82S : Detected but no signal

what other hdmi sources have you tried?

[novak2]

Re: 17MB82S : Detected but no signal

So I tried :
- Laptop Debian Buster (with XRANDR)
- Nintendo Switch
- Sony Playstation 3 (with correct settings to set the output to HDMI)

None of them worked, but on the laptop the HDMI is detected.
I only have 1 HDMI plug on the TV (even if it says HDMI 2 enabled on the service menu).

[novak2]

Re: 17MB82S : Detected but no signal

Note that I have a brother with the exact same TV but his HDMI works.
So I very suspect hardware failure.