CRTGAMER wrote:One area to check if possible is the amp draw of each monitor. Should be similar, suspect the newer LG with more efficient circuits should have less amp draw. There is a risk of blowing out your motherboard if the signals all do not match. On the other hand, if the power lead is another isolated connection a better shot. Apple's reputation of proprietary a concern if all the pins are electric feed identical. A volt read of each pin from both the Apple and LG boards might help, but then it is still a guesstimate.
Good point, CRT. Luckily for me, most of the amperage is drawn through the other wires.
samsonlonghair wrote:
These electric lines connect the inverter to the cold fluorescent lamps that light up this display.
See these wires? These are the ones that draw power the necessary to light up the display. This is where most of the electricity is consumed. The iMac has its own invertor that supplies DC power to the whole machine, not just to the LCD panel. If I understand correctly, the backlight lamps should only draw as much power as they need.
As far as the electrical draw of the LVDS connection, that's the part I'm least concerned about. LVDS is first and foremost an electrical standard. Texas Instruments published a paper on LVDS that explains the electrical specifications better than I can.
An Overview of LVDS Technology (adobe .pdf file)
I'm glad you like it. 
) I learned early on the value of fixing what's broken instead of throwing it away. My grandfather taught me that we live in a "throwaway culture" where nearly everything seems disposable, but if you invest your time and sweat into fixing something you get an even greater value. Sometimes this requires a stubborn personality because it's always easier to quit and give up when you hit a wall. You just have to get creative and improvise until you come to a solution. The solution isn't always obvious, but if you keep attacking the problem from different angles, you just might figure it out.
I understand you own more than one G3 iMac, right? Do any of them have a pink screen problem such as you described? If so, what's the model number and emc number? I'd like to look into it out of curiosity.
Apple's gonna apple. The old school Macintosh VGA connector is fifteen pins just like every other VGA connector, but it's shaped a little differently. Instead of three rows of five pins, The Macintosh video connector has two rows of pins (eight on one row, seven on the other row). The one in a G3 still transmits a VGA-compatible signal, you just need to source a cheap adapter. These used to be more common back in the day, but I haven't spied one in a few years. Looks like this:
