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The REZA respository already takes that into account by changing the output resolution and scaling the input resolution to fit. You just get aspect ratio distortion when doing that, as now you have to rely on the built-in scalar of the RTD2662 chip. Anywho for my project, the panel is 640x400...

Well, at least the REZA repository in that case has everything you need to throw a screen in it. Kuldgy? yes. But it does work. Only option outside of that is to go full fledge FPGA and drive a panel directly. Then you still have to deal with backlight control and power. I really want to...

Not quite the right thread for this, since this is about the EL project but. It's not super difficult to pull it off, you need proper DC-DC converters that feed from the battery power, and yes, the power budget isnt there. Not even for this EL panel, but a lithium battery will hold the whole...

Well, I think the design will work alright, although the cables will be tight.

Oh but it gets worse... My mouser cart: I am never going to financially recover from this (In fact, i dont have the burnable cash at the moment, so ill have to put this off for now)

With the success of my test setup, I need to move onto building the hardware itself. I have the board design done, and OUCH. Friggen JLC plus our current policy situation here in the USA is expensive.

Isn't that just gorgeous? My test environment was a success, and I even like the inverted mode, it actually looks decent. Does it save on power? Nah not really. EL panels tend to increase current due to the amount of pixel transitions happening per row because of the capacitance of the panel itself.

Here is a test setup. Using Androda's Portable to VGA adapter as my testbed along with a secondary device to drive the TFEL panel:

This is still VERY much a work in progress but, I figured I would do something fun. I work on macintosh portable machines all the time, and as such, I have parts lying around in various nooks and crannies of this house lol. The other thing is, the macintosh portable is known to have bad LCDs...

Oh heck YES! Love it

This is now primary. Edited the original post to reflect it.

No, when you lay out an RP2350 or likewise design, you have to follow the layout guidelines exactly to a T, or your DC converter doesn't work/wont run. I saw discussion in a different discord where someone was struggling with this.

Yay! Good, it all worked out. Even though its not your case, sometimes itll open a trace between the negative side of that 47UF cap over to a resistor on the right side at R208

Ive been working on 3 of these drives recently. They are starting to succumb to polarizing prism degredation. Theyre laminated much like LCDs are, and that bond breaks down and it gets hazy, killing the performance of the pickup slowly until it just... Doesnt read anymore. We need an optical...

This was years ago. I dont remember exactly when but it was a handful of years ago. Pretty sure this was from before they migrated hosting even. And I remembered that I also used that PW over at diyaudio.com so my bad. I can't actually prove which forum it was but it was from one of the two. I...

The owners/administration over at 68kmla is pretty much why I stopped going over there. I still get DMs from there time to time which is the only thing that keeps me logged in. As an aside, that site was data breached at one point in the past because the unique password I used there got out on...

Glad to see it all running! I will say the big difference from an actual 640x480 board and the CC board is the flyback (has a different primary impedence so the deflection width changes) As well as the power supply transformer. the windings are native where the 24V is down around 15 to 18V...

Thats only slightly high but its not too far off. It also needs to be under a load from the flyback producing HV before you can really measure it off.

Yeah that HV side runs 24/7, thats why those zeners get baked out. That transformer on the 520/550/575 has a slightly different winding ratio, they knocked that 24V tap down to around 18V and did away with the zener diode. They also bumped up the B+ winding.

The amount of times I can count where I had issues with that PSU id be rich. I can say that I am not surprised, hopefully you iron it out. Make sure standby voltage is making it to the TDA4605 via the opto circuit from the switchon stage.