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| Lightbox from a discarded LCD monitor. |
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| kwackers:
--- Quote from: AdeV on June 13, 2010, 06:39:55 AM ---This is a cool project... and since I've just retrieved a dead 32" screen from a client, I'm wondering if I can't do one of these too; it'd be ideal for proofing & checking PCBs... Anyway, I notice when the TV is powered up, that the backlight seems to work, there's just no picture (or sound) of any description. Does that sound like a likely candidate for a conversion? --- End quote --- Quite probably, as long as it doesn't turn off after a period with no signal! If you remove the LCD panel you'll find the brightness is pretty intense, might want some mechanism for being able to reduce it. Personally I'd still strip it and see if it can be made to work without all the controller gubbins, from your pov it depends how comfortable you are stripping and checking. Good luck! (32" is a decent size!) Steve. |
| shoey51:
great innovation there :clap: :clap: :clap: :clap: |
| cidrontmg:
Erm... slightly embarrassed, but IŽll show my total ignorance about the subject: What is a Light box (i.e. what purpose does it serve?), and what is 'hot glass' work? |
| ksor:
Yes, a nice project BUT ... Often these screens fail because of bad caps - I had 2 screens where I just had to replace a capacitor - then the screen works fine again ! So if you need your screen more then a new light board - look for bad capacitors. |
| AdeV:
--- Quote from: cidrontmg on June 14, 2010, 07:26:48 PM ---Erm... slightly embarrassed, but IŽll show my total ignorance about the subject: What is a Light box (i.e. what purpose does it serve?), and what is 'hot glass' work? --- End quote --- I can't help with 'hot glass' work (I don't know what it is either), a light box is ideal when looking through something, such as a PCB layout print (looking for breaks or holes in any tracks, for example), or any semi-translucent "thing" in which you need to see an internal structure. --- Quote from: ksor on June 15, 2010, 02:52:29 AM ---Yes, a nice project BUT ... Often these screens fail because of bad caps - I had 2 screens where I just had to replace a capacitor - then the screen works fine again ! So if you need your screen more then a new light board - look for bad capacitors. --- End quote --- Interesting, and plausible... the screen is some cheapo far-eastern brand. It was in use in a call centre as a wallboard until it failed, so it is genuinely surplus to requirements. |
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