Hi Ray,
it's very very very unlikely that the error you described is caused by
a dead CRT or a non working video-board.
BUT be aware of high voltage, if you will do the following test, to
reduce the counts of possible error causes:
Since the Lisa still fires up with a unplugged video board, you can try
to remove the two screws of that board and unplug it from the socket.
You don't need to remove the plugs to the coils on the crt and or the
crt itself, nor to the flyback below the video board.
Then you can push the start button to try, whether you can hear more
than a click and whether the power light still remains.
But if you ask me, your problem seems to be an overvoltage or
overcurrent of the PSU. Either caused internally by a dead diode (very
very likely!!!) or an external shortcut on a board. If I remember
right, you wrote something about a "melted" component on a board ?
That's very strange....
TOM from Bavaria
Am 01.12.2005 um 04:53 schrieb Ray Arachelian:
I did try another motherboard, and got the same effect - lights up the
power switch lamp for 1/2 a second, clicks the speaker and nothing, so
perhaps it's something else - I/O board was working, perhaps it still
is, perhaps it isn't, but maybe some other thing is broken - hope it's
not the CRT or video board.
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