Emergency: ETC Smartfade ML DMX out stage schematics needed

[Zaldoran]

Hi guys, I know this is MUSIC electronics forum, but it's the only one I'm registered with and I've an urgent issue with a LIGHTING device

Colleagues blew one universe on an ETC Smartfade ML 24 ch 2 universe desk by applying 24Volts to DMX out. My best guess: TVS diodes and output driver blown. Problem: It's a tour production and I've roughly 24 hours do get parts and fix it. German ETC distribution (Lightpower) is already out of business hours now. Anyone knows what parts are used in there or has probably a schematic of the dmx output stage?

Thanks in Advance and best regards
Holger

[vintagekiki]

https://www.etcconnect.com/Search.aspx?q=ETC+Smartfade+ML+DMX+

https://www.etcconnect.com/Search.aspx?q=ETC+Smartfade+ML+DMX+&archivedonly=true

I can not guarantee that you'll find, but worth a try.

[Zaldoran]

No, found only user manuals there. However, I was able to fix it with parts I pulled out of a different ETC desk. TVS Diodes, some ferrites and driver were blown. Biggest problem was (once again) those f*****g SMD TVS Diodes which heavily burnt the PCB. Those parts should be leaded and mounted w/ 0.5" distance from the pcb. Bad design again :-/