No signal to Samsung RU7100 (even with no video game console hooked up)

[hetnkik]

Hi! I just got my OSSC in the mail and it displays absolutely no picture to my Samsung RU7100 (UN50RU7100FXZA). I mean, nothing at all. This is even without any video game systems hooked up to it. However, I tried plugging it into the living room TV, which is a Samsung MU6070 (UN58MU6070E) and was immediately greeted with the OSSC’s test pattern no problem.

Other info:
OSSC is updated to firmware 0.85a
Tried every HDMI input on my TV and two different HDMI cables (including the one that worked just fine on the MU6070).
Messed around with all kinds of setting in the OSSC but nothing did anything.
Tried multiple settings on my TV including turning Game Mode on and off

Any advice at all would be appreciated.

[BuckoA51]

If possible can you try OSSC on a few other screens too? There is a small possibility the HDMI transmitter isn’t working properly and this will affect some TVs and not others.

[lynxtosg]

I have the RU7100 and can confirm it works. Try setting the OSSC to line 3x with 4:3 generic. I haven’t tested the test pattern recently, but I can help debug a little if you need it.

[hetnkik]

Okay, I was able to try it with all the TVs in the house.

Results:
Worked with Samsung MU6070 (as previously reported) and Samsung H5201 (UN40H5201AFXZA).

Did NOT work with Samsung RU7100 (as previously reported) or Toshiba LF621 (43LF621U19). In both cases it showed no signal.

Since it’s working fine with lynxtosg’s RU7100, does it sound like it’s a case of a messed up HDMI transmitter? Should I try to get a replacement unit?

[lynxtosg]

What are your tv settings? Are you in game mode, input signal plus disabled, fit to screen enabled, hdmi source setting? What about the ossc settings?

[hetnkik]

First off, I 100% appreciate the help, lynxtosg, don’t think I don’t. But just to make sure I’m not messing with a bunch of settings for a lost cause, when you turn your OSSC on with no system hooked into it, does your TV show this

or

this?

[lynxtosg]

Here is what is displayed.

Here my tv information.

[hetnkik]

Awesome, yes. That’s the EXACT same TV I have. But mine won’t even display that when I turn on the OSSC. I just get the no signal screen as per my second picture.

So I’m thinking what BuckoA51 said is true and there’s something wrong with my OSSC’s HDMI transmitter.

But, of course, just to be 100% sure, I would really appreciate it if you could tell me your TV’s settings and your OSSC’s settings so I can duplicate them and rule out any other possibility that something’s wrong.

[Harrumph]

You should also check you are on the same FW version (on the TV).

[lynxtosg]

Here are my working OSSC profiles
ossc profiles

Important TV settings are primarily following this guide ru7100 optimal settings
* All eco settings off
* Game mode enabled
* Input signal plus disabled
* Fit to screen enabled
* No other post-processing / scaling from the TV

[hetnkik]

Okay, I’ve now done an exact like-for-like settings test and still no signal. I’m going to go ahead and start the process of getting my OSSC exchanged now. A huge thanks to everyone who replied in this thread.

As for harrumph’s input, I am on a different TV firmware than lynxtosg. I’m on the newest firmware (1356) and lynxtosg is on 1325 according to his TV profile info. I’m doubting that’s the culprit but he can update and check if he wants. Note that there’s no way to downgrade firmware on Samsung TVs, though, so if that IS actually the problem, he’ll be screwed too.

[hetnkik]

Just got my OSSC back from repairs today and it works fine on my TV now. Huge thanks to BuckoA51, lynxtosg, and everyone else who was helping with troubleshooting.

Looks like faulty HDMI transmitter was indeed the culprit.

[Author]

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