ASUS VG27A brightness mod - dimmer & wider range with a brightness knob
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- Опубліковано 30 чер 2024
- The ASUS VG27A is alright, but its brightness range is useless - it only goes from extremely bright at 100 cd/m² to ridiculously bright at over 300 cd/m², which will ruin both the LEDs in the monitor and your sanity.
Thankfully, it's built around an MP3398 LED driver which makes it very easy to add a manual adjustment knob to the monitor. I used a 10K potentiometer in series with a 3.3K resistor on the LED current adjustment pin to enable a mechanical brightness range of 28 cd/m² to 100 cd/m² with the OSD set to 0 %, or 100 cd/m² to 300cd/m² with the OSD set to 100 %. A higher value potentiometer (20K or so) can be used to widen the range even more. Turning on the backlight flicker lowers the brightness somewhat.
Throw money at me: / ffcossag
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Thanks for the video! Such a useful mod/upgrade, I wish I had thought of searching for it earlier! I did it up to the resistor replacement part, with a ~10k resistor, it is a much more pleasant viewing experience
It's been a while man. Where have you been? Good to see you back.
I've mostly been preoccupied with work and real-life stuff! Having edited hundreds of videos by now, I've grown a bit of a distaste for video editing, so videos just tend never to get done, I'm afraid. Thanks for asking though! I'm still here.
@@FFcossag yeah i hate editing tooo..... rather jam my thumb in the car door...lol. i rather have manual controls ffs too... fuking remote menu system is a pain in the rump cavity.
@@FFcossag This video was ace. Great content, great drama (I was off my rocker with first "fix"), great editing).
Totally agree, so stupid that the brightness from 0-100% doesn't scale from say 10cd to max. Some old monitors are so poorly designed they just dimmed the LCD and not the LED backlight currents, had to add PWM board.
Good mod.
the warranty guys will be absolutely flabbergasted at the massive knob that brought the monitor for repair and the knob at the monitor itself !!!
ps : i know your not planning on returning it ..... im just imagining it !!
If it does fail in a way I can't easily fix, I'm going to undo the mod and send it in anyway - I imagine they just won't notice the very clean hole in it, lol.
@@FFcossag Just put a Warranty void if removed sticker covering the hole. ;)
Analog controls have no digital steps, more natural.
I like analog radios that have volume and tuning without digital steps..
i would say you just improved that monitor no end :-D
I'm currently using this exact same monitor and the brightness is awfully bright even when set to zero, have been using software solution which basically dims the screen by greying the content, and now i see your video, might attempt your mod on mine in the future, thank you very much for this video!
Can't beat stroking a knob for a happy experience, of course I am referring to potentiometers and analogue inputs... :P
Nice mod
love it
Do you do any PC gaming?
Not much, but what I do play, I play on a reasonably high level - else you wouldb't catch me buying a "gaming" peripheral.
@@FFcossag That's why I asked since it's a a 165 Hz TUF gaming monitor, but after thinking about it some more I think I've asked you about gaming before. I think it was the night in the middle of your power outage and you were building the survival area in that room of the kitchen. Can I ask what you play? Are you a Battlefield fan or play any Warzone? I know what you mean about not enjoying editing videos at all, so maybe we will see more livestreams? Have a great day.
I play Battlefield 2 and Crossout, and aside from the occasional visual novel type game (Life is Strange comes to mind) that's pretty much it.
I try to do livestreams, but sadly, I haven't had many livestreamable projects recently. Most of my work for the last few months has been along the lines of "balance charge this pile of batteries" or "fix 30 of these identical boards".
$500 and they still put the Chinesium caps on them...
I wouldn't even pay $50 for that.
It's the way of the world. In these DC-in monitors, it tends not to matter. The caps don't really work all that hard. They're much more critical in monitors with AC inputs. This is a budget monitor as far as 27" 1440p IPS monitors go, after all.
Yup, and now especially that you're driving it at low brightness, the LEDs lifetime increases exponentially as well.
500 Euro for that plastic piece of crap. wow, what a rip off. The back is just clipped on with horrible plastic clips and the metal can with the boards inside just floats around on the back at a wonky angle. Ive repaired cheap vestel TVs before and even they have the boards held in place with screws.
That's how all computer monitors are put together, lol. You only pay for the panel, basically, everything else is whatever.
I really enjoyed this video. Glad you decided on the knob. Would love to do this on my laptop for evening sessions.
Thanks. Yeah, laptops tend to be overly bright as well. A real shame. I miss the old Thinkpads with a mechanical dimmer slider on the screen.