Monday, February 7, 2022

Bringing my Gefen Home Theater Scale out of retirement

So my DVDO Edge went up in smoke. Or rather, my first DVDO Edge went in smoke... and really, it was just the power supply, which I'm reading is a "common" occurrence (link 1, 2). Since I have a TESmart 16:1 HDMI switcher, the Edge was really downgraded to just deinterlacing and making the OSSC play nice with its more exotic modes: the PSP-specific sampling mode, Line 5x, and 480p/576p proc Line2x.

After waiting so long for the zooming/cropping modes of the RetroTINK-5X Pro, I found the OSSC's PSP-specific mode the superior one all along, and that meant an external scaler again. My long boxed-up Gefen Home Theater Scaler was perfect for this, and it did display the PSP-specific sampling mode just fine (will try 5x and 480p 2x later)

The box-shaped remote was as crappy as I remembered, with buttons barely registering and making me question if I really needed a new battery. I tried programming a secondhand Chunghop remote and I had some success, although my programmed buttons for Up and Right didn't work. I did get a brand new controller for about $10 so I'll try again with programming.

Then for whatever reason I became interested getting a second Gefen HTS, and it was cheap enough, so I did: 

  • Gefen Home Theater Scaler HDMI Untested: $41.36 shipped
  • Gefen ITE Power Supply, GT-4201D-05, DC 5V 4.0A, Genuine: $20.46 shipped
  • GEFEN RMT-SR-IR REMOTE: $21.90 shipped
Okay, so I should've stopped with just the second Gefen HTS itself. And wouldn't you know it: this second scaler came with its own set of problems:
  • The remote didn't work, and without the remote, the second scaler was just a brick. So maybe "untested" really meant broken this time? Well, no. I remembered seeing dip switches under the battery cover, and I also remembered the "Remote" option in the scaler menu. Some searching led me to a PDF of another Gefen Remote, and while the dip switch settings weren't quite the same, I was able to figure it out for my scaler:
    1. IR Channel 1: 1: down (off), 2: down (off)
    2. IR Channel 2: 1: up (on), 2: down (off)
    3. IR Channel 3: 1: down (off), 2: up (on)
    4. IR Channel 4: 1: up (on), 2: up (on)
    • Turns out this second scaler was stuck looking for Remote 2 and my square remote was set to Remote 1. That meant going through the different combinations of dip switches on the remote until it responded.
  • Good news: The firmware of this new scaler was 4.8! Higher than my original one which was 2.2. The menu looked exactly the same (so no new features) except the cursor was highlighted in red.
  • Bad news: I saw screen tearing! It went away after I hit Reset on the remote to return to the default settings. I hope that fixed it for good.
  • I ordered the 2nd remote (now oval-shaped) before figuring out the whole IR Channel thing, but some good things came out of it:
    • The battery was included!
    • The buttons are much better; more tactile and responsive.
    • The scaler, power supply, and remote complete the set. Or maybe I'll give the old Gefen HTS to my brother so he could enjoy 5x with the SNES or whatever.
    • Update: the oval-shaped remote doesn't seem to actually work with the Gefen HTS, and I'm having even worse luck with the brand-new Chunghop remote. What am I doing wrong?
  • More IR links for fun and profit:

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