Topic: Tyros 5 - the screen does not light up

[MARCOS FERREIRA]

Hello, my Tyros 5, 71 keys, has the following defect: I turn on the power, the LEDs light up but the screen does not light up. There's no sound either. Has anyone ever had this type of case. Thank you in advance for your attention.

[ikmusic]

Shine a flashlight and see if you can see anything.

[Amwilburn]

for now, plug an RGB cable out of the T5 into a compatible monitor/TV to see if the T5 is working. If there's no output visually, then yeah, there's definitely a problem.

Also try listening with headphones/ or line out into a mixer or receiver to see if you even get the basic piano sound

Mark

[MARCOS FERREIRA]

There is no signal on the screen and there is also no sound or connection via USB to a PC via the Musicsoft Downloader program.

[Amwilburn]

If there is no signal coming out of the Tyros 5 into an RGB monitor, then yeah, you've got serious problems: probably dead  motherboard (but possibly something else, since the LED's do turn on), rather than just a dead screen.
You can take it to a repair shop, but they'll charge you just for taking a look (typically $50 to $80 here); and it sounds like a major, major problem. Possibly over $1000 to repair.

But before panicking, *did* you route to an external screen? "There is no signal on the screen" is pretty vague; what you previously described sounded like a dead LCD screen, which actually isn't a big issue at all if you route the screen to an external monitor. *Did you*?

The connection to PC doesn't mean much because you need to put it into PC mode first (I think?), which you can't do without the screen anyway.

[MARCOS FERREIRA]

I turned it on to an external screen and only the Yamaha logo appears. See photos in attached files. I spoke to a technician in my city of Natal/Brazil, and he thinks that there is no processing. I'll take it tomorrow for him to check. Thank you for your attention.

[Amwilburn]

oh, that might not be as bad... *might* simply need to format the hard drive; that might not be motherboard at all. Might just be the hard drive.

That's actually *good* news!

[overover]

Hi Marcos,

In your first attached picture, the display of your Tyros5 is pulled very high up. This may have caused a ribbon cable to come loose inside the display housing. I know of a few cases where this led to such errors (on Tyros3/4/5).

It is also possible (or in addition) that the backlight inside the display housing is defective or is not receiving power. If, as already mentioned by "ikmusic", you illuminate the T5 display with a flashlight (e.g. with the LED on your smartphone switched on), would you perhaps see the Yamaha logo there as well as on the external screen?

Like Mark (Amwilburn) said, it could be due to a defect in the internal hard drive. To be on the safe side, I would remove the hard drive in this case. To do this, you have to loosen three screws on the bottom of the T5, then carefully pull out the caddy with the hard disk and unplug the internal USB cable. (See the following video.) Then try whether the T5 starts normally without a hard disk.
>>> https://youtu.be/ffeOJUp--1M

If the T5 starts, you can connect the hard drive to the computer using a suitable USB cable and check it. It may also be that the hard drive is OK, but the SATA-to-USB adapter board installed on it is defective.

If the T5 does not start even without a hard drive, I recommend that you first download the Tyros4 (!) Service Manual here and try to start the internal Test program as described there. (Three specific piano keys must be held down when switching on.)
>>> https://www.psrtutorial.com/lessons/workshops/ServiceManuals.html

Please report back here if this works (displayed on the external screen).

If it doesn't work, only an experienced service technician (preferably an authorized Yamaha service center) can probably help you. The first thing the technician should do is open (unscrew) the display housing to make sure that an internal cable has not come loose, as described above.


Hope this helps!

Best regards,
Chris

[MARCOS FERREIRA]

Hello everyone, I took my Tryos 5 to the technician and he said the problem was with the motherboard, but he can't fix it. I'm going to take it to a Yamaha technical assistance center located in another city, 200 km from mine. I put a light on the display and the message "Internal hardware error!" appears.

[Amwilburn]

Just to warn you the motherboard is the 2nd most expensive thing on a TOTL (the 3rd is the screen, which also sounds like it's going). So get a quote estimate *before* they do anything.

The most expensive thing to replace is, unbelievably, the casing.

[MARCOS FERREIRA]

Thank you Amwilburn, the technician I'm taking doesn't change the plate, he will try to recover it. And he only does the job if I authorize it.