I recently picked up a Revision L TIU in some stuff I acquired. I was testing it and it does not put out a DCS signal on any channel. I tried turning the DCS signal on for each channel using the remote with no change. Reloaded the DCS software and reset the TIU with no change. I'm assuming this is some kind of hardware issue. Is it possible to repair this TIU? If not no biggie, just curious if it can be fixed.
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