Did I fry my Apple display?

[Al Poulin]

I think you have to believe what you know.  I'd take the bad display to a
repair shop.  Wonder if pulling the plug could be enough to induce an
electrical voltage surge or dip through the USB connection?

-- 
Al Poulin
Anger, hate, and revenge are for the devil, forgiveness is for God,
proactive self-defense is for the rest of us.

Jim Robertson <jamesrob at sonic.net> wrote:
> 
> I have been planning to transfer my dual 1 GHz G4 to my son, who's learning
> Flash and needs more horsepower. I bought a dual 1.8 GHz G5, then recently
> an Apple 17" LCD Studio Display just like my other one (the current model).
> Unfortunately, I can't put a computer in his room onto my 10/100bT network,
> so I resigned myself to using Airport in his dual G4.
> 
> HERE's where things get fuzzy. My wireless base station is a Netgear 802.11g
> router and ethernet switch. It works fine with the Airport Extreme card in
> my Al PB, and with the Airport card in my son's TiBook. HOWEVER, when I
> bought and installed an Airport card in the G4 Dual 1 GHz, NOTHING I could
> do would make the dual G4 "see" the wireless router. I verified that the
> card was good (swapped it with the one in the TiBook). I decided that the
> antenna must be the problem, so I decided to put an 802.11g PCI card in the
> dual 1 GHz G4. I installed the card with the computer plugged in (for
> grounding) but powered down. As I installed the card (a Motorola card sold
> for PCs only but claimed to work on multiple Mac forums), the computer
> started booting. I pulled the power cord to stop booting and completed the
> card installation.
> 
> Now, when I plug the monitor connector into the computer, it starts to boot
> and the "sleep" LED on the right lower corner of the monitor bezel glows
> brightly. The computer emits the single long monotone that says "hosed
> motherboard," and it won't boot. I took the PCI wireless card back out but
> nothing changed.
> 
> Now here's where things get REALLY weird. I decided that perhaps there was a
> hardware incompatibility between the Mac's video card and the PCI networking
> card, and perhaps I'd hosed the G4's video card, but just to be certain, I
> tried plugging the G4 dual into my other 17" studio display, AND IT BOOTS111
> 
> So, I tried plugging my G5 dual into the studio display that isn't playing
> nice, and the G5 emits the warning motherboard monotone!!
> 
> So, it appears that installing the PCI networking card has somehow done
> something bad not to the video card, but to the Studio Display itself. Does
> this make any sense? Any suggestions what I should do next?
> 
> Any guesses MORE than welcome!