• Some time ago, I was telling you guys how much I loved/hated my SONY Trinitron TV, because it had Geometry/Symmetry issues that the Service Menu couldn't fix...
    Well... guess what?

    I've just sort of fixed the Image with the Service Menu. All by a happy little accident!

    I was playing around with the Service Menu, because I' updated my CPS2 Roms List for Retroarch on Wii.
    And I intended to play a game called Dimahoo. This game has it's own Aspect Ratio that's not exactly 4:3 nor a squarish Aspect Ratio... instead, it uses some kind of inverted 16:9.
    Everytime I loaded the game on my Wii, the screen would immediately squash into that Aspect Ratio. And while I could've played the game just fine... it bugged me when I noticed that the Geometry wasn't good enough.

    Here's a picture I've made with Inkscape to represent the Geometry it had at first:

    CRT 1.png
    This is how the games looks when I play them on my Wii and my SONY Trinitron.
    PLEASE TELL ME THAT I'M NOT THE ONLY ONE THAT FEELS CRAZY ABOUT THIS PICTURE!
    The Service Menu has some options to sort of get around these problems... and the Service Menu has this kind of labels that lets you know what you're modifying.
    For instance... it has a certain ammount of values to change Geometry / Symmetry / Aspect Ratio options.
    Then, you have a certain ammount of values to change Colors.
    Then, you have a certain ammount of values to change Sound.
    Etcetera.

    I've never went beyond some values because I never noticed any changes to the picture quality when I changed the values, so I never bothered looking further than a bunch of values.
    Then... accidentally found a value called: AFC that had a value of 3.
    Since 5 values before AFC had the same value of 0, I thought in changing the AFC value from 3 to 0... and MAGIC HAPPENED!
    The picture corrected the Left Hand Bowing almost in it's entirety!
    And after changing that value, the picture went from this:​
    CRT WEIRD VALUE.png
    With Default Values​
    To this:​
    CRT 2.png
    With Default Values but changed AFC from 3 to 0
    And I was like: WHAT THE HECK?
    Then... I played around with the values called: VBOW, VANG, PAMP, UPIN and LPIN to sort of straight the picture.
    The ending result was a picture like this:​
    CRT 3.png
    If you really look at it close enough, you'll notice a very small ammount of bowing on both top corners.
    And changing some values of the Horizontal and Vertical Size, I sort of managed to hide the bowing on both top corners.
    And with the value called EHT and SCRL I managed to pull the picture to the center while expanding the picture beyond the "frames" of the TV to hide the bowing.
    The ending result... a nearly perfect straight picture.

    I also found a value called: INTL that goes from values 0 - 3... and I noticed that it was on 1.
    When I changed the value from 1 to 3... MORE MAGIC HAPPENED! SCAN LINES APPEARED!

    God damn! Not only I got a near perfect symmetric picture, but I also got Scanlines?! What kind of dark magic is this?

    Now... Retrogaming with Retroarch on a big ass 29" SONY Trinitron CRT with SCANLINES is a whole new level of Retrogaming!
    Dimahoo can be played in it's intended Aspect Ratio without noticeable bowing on the side edges of the screen.
    Using Overlays with Retroarch (Scanlines overlays) further improves the Scanlines of my SONY Trinitron!
    Colors looks awesome.
    Blacks are true blacks.
    Surround sound.
    Scanlines.
    Near perfect Picture all in 240p + CRT + RETROARCH glory!​

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