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Dead Mac LC475

Starbuck051297
on
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Last Modified: 2008-03-17
I have a "dead" Mac LC475. Specifically, no image on monitor (tried another monitor as well) and apparently no keyboard communication, ie Command-E will not eject floppy disk. Possibly booting up ok - chimes as usual. Hard drive appears to be running ok (also tried swapping internal drive with another known good one as well as attaching external drive.)
Hard to diagnose without looking at the machine, but suggestions would be welcome. Motherboard gone? Bios?

Thanks in advance for your suggestions

Stuart Tarbuck
Vancouver, B.C.
(josquin@portal.ca)
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Commented:
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Guess: dead video card?


Commented:
check the video card and get back to us.
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Commented:
Sarky: Original monitor is working fine on another machine.

Otta:  Sorry - haven't used this forum for a long time; forgot protocol.

Seems like video might be the (obvious!) answer. Still a little worried that keyboard shortcut does not work...


mikhaelSales Engineer

Commented:
Starbuck: Have you also tried another keyboard and mouse? If you are not getting keyboard commands perhaps your ADB bus is shot...

Have you had any lightning around lately? Especially if you have a modem connected? Lightning surges can still get in via the power circuit.

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