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[00:00:32] <Jak_o_Shadows> As is the cables are very short, about 5cm. I'd be extending them closer to 1m
[00:00:44] <anonnumberanon> What's wrong with just extending wires?
[00:00:47] <theBear> the umm,
http://testing.fucking.rememberit.com.au/pics/Dec13__Jan14%20wkshop%20jumble/IMAG0295.jpg is what my very (surprisingly) solid lvds and whatever stuff extension loooked like
[00:00:58] <theBear> sorry bout b/w
[00:01:16] <Jak_o_Shadows> It's HV AC, I don't know squat about that.
[00:01:28] <anonnumberanon> Would some buffer capacitor in the line help to maintain voltage with such an extended line theBear ?
[00:01:52] <anonnumberanon> Oh, it's AC? straight from the wall outlet?
[00:01:57] <theBear> wait what ?
[00:02:08] <Jak_o_Shadows> I'm probably not talking about extending the signal cable - not the LVDS stuff. Just the backlight.
[00:02:22] <theBear> the umm, lvds is the signal, backlight is the err, not signal
[00:02:25] <Jak_o_Shadows> The little control panel is light enough to attach to the back.
[00:02:34] <anonnumberanon> the backlight is powered with DC
[00:02:56] <Jak_o_Shadows> I can assure you it is not on mine. It says 710 Vrms, 6.4mA rms
[00:02:58] <theBear> ccfl would be more like 700-1200v @maybe 400hz from memory
[00:03:01] <Jak_o_Shadows> RMs -> not DC
[00:03:20] <theBear> rms CAN be dc, technically, but yeah, it's ugly chopped hf fluoro drive
[00:03:44] <anonnumberanon> Jak_o_Shadows, I would try it.
[00:04:14] <anonnumberanon> And I don't usually break things if that gives you any more confidence in my advice.
[00:04:18] <anonnumberanon> lol
[00:04:38] <Jak_o_Shadows> haha
[00:05:07] <theBear> the umm, may i ask why in a foreboding kinda way
[00:05:53] <Jak_o_Shadows> Want to mount the screen to a microphone boom arm thing, and lighter is better. The power supply is heavy.
[00:06:22] <theBear> ahh, hmmmmmmmm..... is the ccfl supply part of the main psu board, or a seperate little one ?
[00:06:25] <anonnumberanon> how thick is the wire between the PSU and the backlight?
[00:06:46] <theBear> also we talkin like 2/4 wires, 8 wires, or like, a ton of tube connections for a 30+" ?
[00:06:49] <Jak_o_Shadows> main board
[00:07:01] <Jak_o_Shadows> 4 wires per ccfl (so 8 total)
[00:07:11] <Jak_o_Shadows> separate HV converter components for each ccfl
[00:07:18] <anonnumberanon> maybe try to end up with the same resistance in the current wire and in the new wire, for a longer wire, that means needing to make the wire thicker
[00:07:20] <theBear> hmmmmmmm........
[00:07:50] <anonnumberanon> that girth thing
[00:08:03] <theBear> the ummm, with the highish freqs and voltages and huge metal lcd chassis etc, those things tend to leak a lot even when they ain't modificated, tho some do cope better than others
[00:08:21] <Jak_o_Shadows> leak?
[00:08:35] <theBear> how much you strippin it down ? you could go for the not-a-glass-sheet minimalist no-b/l approach
[00:08:41] * anonnumberanon sees an electronics peeing current
[00:08:48] <theBear> leak like err, neg ion generators or tesla coils leak kinda leak
[00:09:43] <Jak_o_Shadows> Hmm.I wasn't planning on stripping it down that much. Through it is 2kg at the moment.
[00:10:13] <theBear> yeah, not suggesting it, just checkin :)
[00:10:49] <theBear> tho IF you can practically remove the metal part of the lcd-panel chassis/frame, that'll take out a ton of weight, and leave a floppy arkward panel behind
[00:11:50] <theBear> hmm, you got a fancy car place nearby maybe ? ("i take a piece of shit car and i lower tha muthaf(*&$ah, put 18" rims on the muthaf%#(@a, put neon lights underneat the muthaf)$(A so when i roll round town it looks like i hover hover hover")
[00:12:50] <theBear> i can also say confidently, modern mech/lamp-boomy-things are crap, olden days heavy duty cast/steel kinda ones like in old movies are KICKASS
[00:13:27] <theBear> and that mount higher than mounted weight = much less demanding, specially when moved
[00:15:57] <Jak_o_Shadows> Why does the LCD have connectors off one edge of t as well?
[00:15:59] <anonnumberanon> One more thing that used to be manufactured better.
[00:16:16] <Jak_o_Shadows> oh, some sort of light sensor I think
[00:16:51] <Jak_o_Shadows> wow the actual panel is light.
[00:17:55] <theBear> the erm, it looks a lot like only 1 wire is connected to the ex-battery also
[00:18:47] <theBear> Jak_o_Shadows, the lcd internally (from glass pov) needs SOMETHING on 2 sides to do the X-Y thing, tho these days it usually just tiny chips connected to invisible glassey wires rather than seprate ribbons
[00:19:02] <theBear> woops wrong channelk 2ndlast line
[00:22:51] <Jak_o_Shadows> yeah. This has little bars
[00:26:03] <theBear> mmm i got a supercloseup of a couple somewhere, but you know what it would look like and i'm all pffft :)
[00:26:40] <Jak_o_Shadows1> Hmm.
[00:26:52] <Jak_o_Shadows1> Floating glass screen has potential, but how m I going to light it up
[00:26:58] <Jak_o_Shadows1> I suppose I could use LED striplight?
[00:27:38] <theBear> i always wanted to trial one just "near a window" and for nighttime trial something like white sheet behind or just near a wall and room-lighting, or even a desklamp pointed backwardsish
[00:28:56] <theBear> don't lose the order on all that floppy sheet crap behind the screen whatever you do, assuming you get to that bridge for whatever reasons.... it's always keyed somehow, but it's just floppy and fly-away-ey and hard to handle and see keys in, and in many cases literally impossible to effectively clean or spot-clean if you fingerprint it etcetc
[00:29:32] <Jak_o_Shadows1> Yeah. I'll leave it assembled
[00:29:37] <Jak_o_Shadows1> also, it is working.
[00:29:38] <theBear> first few layers in a ccfl are diffuse/spread stuff, but usually 1 or more of the last layers is a polarisey thing that the screen don't do much without, moreso on bigger screens i spose
[00:29:55] <theBear> you mean you extended the wires already, or just a sidecomment ?
[00:30:43] <Jak_o_Shadows1> I have the glass frame out, and that's working
[00:30:55] <Jak_o_Shadows1> TBH, considering dumping the ccfl
[00:31:48] <Jak_o_Shadows1> Like, the screen is away from the backlight module, and if I force light through it, it works
[00:39:20] <theBear> at this stage don't get cocky and do something dumb like bumping a horrible balance of screenparts and tearing all the ffc's off/outta the glass or similar, cos err, that kinda thing happens when freeform testing lcd stuff like that, i err, heard somewhere <grin>
[00:39:55] <theBear> and i was fulltime repairs for years, i kinda do the opposite of hurting electronics just by being near it
[00:40:41] <theBear> Jak_o_Shadows1, also by the time you that deep in the thing, it's trivialish to retrofit some led or other solution on
[00:41:45] <theBear> tho if the ccfl supply on the same pcb as the main psu, might be not-super-trivial working out how to fool it to say things are cool, and pref. not keep doing the whole hv-ccfl-supply thing and spraying all kinds of electrical stuff this way and that
[00:42:30] <theBear> not too hard with a couple hard-way learned tips from the master of uneconomical lcd internal modificatory and frankensteinery, but still less fun that not doing it <grin>
[00:46:41] <anonnumberanon> I usually prefer soldering a joystick pot to an 8bit micro and programming that, when I want to hack around.
[00:47:01] * anonnumberanon still needs to make an smps though
[00:47:28] <anonnumberanon> damn if only i had the time (cause i also got 2 dollars to buy one so..)
[00:48:16] <anonnumberanon> I was looking a few months ago into making one that was small and would output 100 watts at 5 to 12 V.
[00:49:16] <anonnumberanon> Found a chinese one online for 10 bucks so that did it. But i'd like to make my own and include it onto a larger board one day.
[01:01:53] <theBear> my motivations and reasons in recent years are err, being me is kinda wacky, i'll put it that way :)
[01:30:22] <Jak_o_Shadows1> haha
[01:30:28] <Jak_o_Shadows1> Yeah, I knew I was asking the right person
[01:31:48] <Jak_o_Shadows1> TBH, the control panel thing only needs 5V, 12V, and I think there's a couple of signals going the other way to the hv-ccfl bit.
[01:32:10] <Jak_o_Shadows1> Thinking about just giving it the power it needs and not using the original power supply
[11:18:11] <rue_bed2> anonnumberanon, check out my 'bench power supply' on hackaday projects
[11:18:23] <rue_bed2> no, its not done yet
[11:19:08] <rue_bed2> its 300w tho
