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SL7550 Screen

Posted: Wed Sep 12, 2018 11:24 am
by tdats
I have a SL7550 (not an E version) with a broken screen.

I ordered a replacement screen from Wiscom. After a long backorder from Motorola, including a part# change, I finally have the screen. Putting it in the radio, I get nothing at all on the screen. It just stays black, no flickers, no nothing. Putting the old screen back in, it works as well as it did before. (Lights up, lines on the screen, etc)

The screens do look different on the back.

Anyone know if mother M had changed some hardware or something? If so, anyone know where I can get my hands on a non e series radio screen?

Trying to rule out something like that before I pursue it being a bad replacement screen.



Re: SL7550 Screen

Posted: Thu Sep 13, 2018 6:44 am
by escomm
Sounds like a sales support question for your vendor. They do support their sales, right ?

Re: SL7550 Screen

Posted: Thu Sep 13, 2018 12:40 pm
by com501
if you don't have access to MOL support, then yes, as stated, call the vendor. There have been several changes on those radios. The new one is the new version with the JTAG port visible.

Re: SL7550 Screen

Posted: Fri Sep 14, 2018 12:45 am
by MotoFAN
What is the FW version in radio? Upgrade it to the latest first. I remember the situation with XTS3000 where display mfg. was changed and required new driver to work. Driver is part of firmware package. I can't guarantee, it's just my expirience with another series radio.

Re: SL7550 Screen

Posted: Thu Sep 27, 2018 8:01 am
by tdats
Contacted Motorola trough MOL, gave them the radio TANAPA and model and they came back with the part# for the new screen I had received that does not work.

It actually appears that the radio would not complete it's bootup with that new screen. I could not get my computer to recognize the radio at all with the new screen in, put the old broken one back in and it would connect right up to the computer. Did verify the newest firmware on the radio as well.

Decided at this point I am done messing with it and sent it to depot. So, no good answer on what the issue is, but I am pretty sure there are multiple screen versions out there, and they do not seem to be compatible with each other. I'll have to see when the radio comes back what screen it has in it.