HD Homerun Dual ATSC Tuner: It’s the power supply.

I’m gonna try and save you some time with the HD Homerun Dual ATSC Tuner: It’s the power supply.

I have a “venerable” HD Homerun Dual ATSC Network tv tuner. They’re reputed to be tanks.

My MythTV system could no longer access the tuners, first croaking on recordings, then eventually refusing to record at all.

My OTA TV recording system consists of a couple antennas, a coupling external antenna amplifier, the power supply for that amp, a 5G cell phone filter, a 4-up 24db gain distribution amplifier, from which 2 of the coax leads run to my HD Homerun Dual tuner.

That’s a lot of stuff in the signal path, and I about ran myself ragged  trying to diagnose every part, every connection, the outdoor stuff, the indoor stuff, started thinking about how I was going to get up on the roof, nearly spent $120 on a new coupling amp, before I ran across this advice to try replacing the power supply on the HD Homerun Dual with a new one capable of delivering 5vdc, 2A, (center-positive connector).

If you’re like me, you keep a bin full of these things sitting around almost useless, and the task is just to sort out one with the right voltage, current deliverability and polarity.

Long story short: Not only did replacing the power supply work, but I’m getting 100% signal just about across the board on all channels – better  than the HDHR Dual has ever worked in my system.

So make that your first try if you’re running into tuner troubles with an HD Homerun Dual tuner. Might save you from getting up on the roof.