After you get the case opened and before you start monkeying with the
flyback transformer and its high voltages have a look at the low voltage
power connectors associated with the vertical analog board.
I have found dozens of cracked solder joints and crimp joints where the
wires fit into pins on the connectors. Often just wiggling them around a
bit is sufficient. The pins at the back end of the picture tube use a
multi pin socket that can come loose too.
It's possible to check for high voltage by turning the opened computer
off and checking for a spark when you poke an insulated and grounded
wire so that it slides under the rubber-like cover of the high voltage
pin on the tube. It should make a spark that you can hear. DON'T DO IT
UNLESS YOU HAVE DONE IT BEFORE. It's a few thousand volts but not as bad
as the 25000 volts in a big color monitor. You might well have a
neighbor who has done things like that or even has a voltmeter for the
purpose.
On 07/28/2015 08:47 AM, coverturtle wrote, and I snipped a bit:
Hi Carol, Well, the Laserwriter is a beast! Quite a few are still
working in businesses, but you won't hear about it.
To determine the problem with the SE, you would need to remove the
case cover and that requires a Torx screwdriver or bit (T-20, I
think) that has a about an 8" shaft so it will reach all the way to
the two screws at the top of the case. If, by chance, you should
have such a tool then you could remove the case top and, without
touching anything else (could be high voltage like a TV), turn off
any lights and determine if there is a red glow in the rear end of
the picture tube - that's near the connector. If there's a red
glow, it probably means that the picture tube is OK. If the tube is
OK, then probably you would need to replace the high voltage
transformer (called a flyback transformer) and the component board on
which it is mounted. The flyback is the one that has the thick wire
attached to the middle of the picture tube.
On 07/27/2015 10:13 AM, Carol Mcgill wrote:
Hi, this is my first post so please excuse any mistakes I make. I
have a Mac SE which I used to use regularly up until 15 years or so
ago. It was put in the attic and has moved house twice with us,
until today when I decided to give it a go. It has Claris Works
installed and I also have SoundMaster so I can tell it's working.
There is a beep on startup, you can hear the hard drive working
and then when it's ready it announces, courtesy I think of Leslie
Nielsen, "Nice Beaver!". After a while Clint Eastwood says to me
"Hi there, everybody" so it's still working at that point. The
problem is I can't see anything as the monitor is not lighting up.
Are there any tips for attaching a monitor or am I wasting my
time? Is there anybody who would be interested in buying it without
the monitor working? I have the original mouse, keyboard,
microphone and also and imagewriter printer that stopped working
(dot matrix) as well as a Laser Writer which is in my garden shed
so unlikely to be working but it's possible. I have all the
original cables, operating system disks and booklet for Claris
Works. I would really like to get it going though. I also have an
old Opus computer with 5.25" winchester hard drive that I'm trying
to get to work but that's another story. Thanks in advance for any
help you can give. -- -- -----
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