[APrender]

Does it run well despite the mess? Mine works ok but the screen is a little messy as well. Some pixels are bright while others are dim.

Now I'm a little worried if my unit will go faulty too.

I have a pair of active speakers hooked to the Mini-I's XLR connectors. The sound comes to the Mini-I from TV through Toslink. I just tested it after the repairs, and the sound works as expected. Volume control, remote, source switching, everything works, it's just the display that doesn't show any meaningful text. It's very annoying, but I think I can live with it for now. I just have to guess what's going on.

Like I told in my previous post, my first symptoms were the display going from normal to messy all of a sudden. By messy I mean the text was unreadable. Brightness was ok, but the characters changed. Then it stopped working altogether, and the reason was apparently the failed +5V regulator. I hope your unit will last longer.

 

[penmarker]

Could you do something with the connection between the display to the board? It is weird how the display can be jumbled up. Or maybe a micro-controller for the screen is faulty?
I've actually had come across several cases where the display gets messed up.

 

[APrender]

I checked the flat cable and it and the connections seem good. I believe the failed regulator fed the PIC16F917 that drives the display. Maybe the voltage variations have damaged the driver chip?

 

[arjuna93]

COAX - Audio-Technica AT-HDSL1 (COAX to TOSLINK) ---> Kenwood KAF-A55 ---> Fostex FE103E (Speaker)

How did you like AT-HDSL1?

 

[davemchine]

Does anyone has a problem with loud pops sound thru speakers when turn ON or OFF the Matrix mini DAC?

I am having the loud pop problem. Did you resolve it?