sethcohn@alchemy.tcnet.ithaca.ny.us (seth cohn) (01/14/91)
just thought of another reason why people shouldn't go inside a mac..
1) as I said High voltage - there is enough voltage in a crt even with
the power OFF and unplugged to stop your heart - Apple makes a
very big deal of this during service training
especially the older macs - they hold charge for DAYS after the
is unplugged
ARE YOU WILLING TO RISK YOUR LIFE TO SAVE A LITTLE MONEY???
2) the neck of the crt is fragile and in taking out a logic board you
MUST
REACH behind the crt and PULL on a cable.....
even the best of us have bad days but if you've never done it before
(and even if you have)
I find that most blown crt are caused by customers snapping the neck off
while puttinmg memory into their machine
Crts have a vacuum which can implode causing glass to fly all over
ARE YOU WILLING TO RISK YOUR FACE AND EYES TO SAVE A LITTLE MONEY????
As a service tech - I deal with this stuff all the time - I have
experience and tools and knowledge to protect myself - let alone fix the
machine
please...... DON't GO INSIDE your machine....
for your own SAKE...
If you must.... Be carefull in there!!!!!!
sincerely,
Seth
Seth Cohn - Ithaca NY - POB 671 - (607)273-2815 (eves)
Mac Service Tech to The Stars and most major Planets
The Highest Form Of Service Is Anarchy In The Defense Of The SelfMARK.HOLLINGSWORTH@f1.n354.z1.FIDONET.ORG (MARK HOLLINGSWORTH) (01/18/91)
>>please...... DON't GO INSIDE your machine....
for your own SAKE...<<
Really, what do you think most people are, complete idiots?
I've opened up several compact Mac's, and certainly never had any
problems.Sure, you need to be very careful.It's an expensive peice of
equiptment with high voltage. But I don't have any special tools,and
possibly slightly higher than average mechanical ability--and never any
problems at all.
I just upgraded my SE/30 to 8 meg from 5 (which I installed too). I
didn't have to go near the tube. Just disconect everything from the main
board.Nice & slow, good lights, padded working place, and its easy.
I'm all for advising lots of care, and klutz's shouldn't probably be in
there--but REALLY!
.....just my opinion of course........
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INTERNET: MARK.HOLLINGSWORTH@f1.n354.z1.FIDONET.ORGrush@mnementh.metaphor.com (Ed Rush) (01/19/91)
In article <i35PV3w162w@alchemy.tcnet.ithaca.ny.us> sethcohn@alchemy.tcnet.ithaca.ny.us (seth cohn) writes: >just thought of another reason why people shouldn't go inside a mac.. Poppycock. You just have to keep your mitts off the CRT and its connections, be careful when wiggling some of those very tight connectors loose from the motherboard, ground yourself for static charge, and not tell Steve Jobs :-). Oh, yes, one more essential thing: keep the kids and cats out of the room! How many thousands of people do you suppose have bought memory from the various mail-order houses and put it in themselves with no problems? ----------------------------------------- Ed Rush, employed by but not speaking for Metaphor Computers, Mtn. View, CA UUCP: [...!{apple|decwrl}!]metaphor!mnementh!rush Internet: rush@mnementh.metaphor.com ----------------------------------------- "The reason angels can fly is that they take themselves so lightly."
mwang@oracle.com (Michael Wang) (01/23/91)
[ General discussion about why you should or should not open up a compact Macintosh to upgrade memory... ] The machines you have the worry about are the models before the Macintosh SE, i.e. Mac 128K, Mac 512K, Mac Plus, and Mac 512Ke. All of these models allowed a large charge to build up around the connector between the monitor and the analog board, and if you weren't carefully, you could zap yourself really good (or worse!). In the class at Apple for would-be Certified Technicians, they teach you how to ground yourself and the tools you are using so that you don't kill yourself trying to disconnect the analog board connector from the monitor. I'm not sure if the latest Mac Plus model (the one with the new analog board design) has this same problem, but I would still be careful around it. In all the newer compact Macs, there is no charge build up on the monitor so it is a lot safer to muck around inside. If you are not sure of your abilities, but still want to try upgrading your Mac yourself, contact a Certified Apple Technician and ask him or her about any safety precautions you should take. If you are REALLY not sure, take your machine in to get it upgraded. It is not worth damaging your logic board (or worse) just to save some money. Michael Wang mwang@oracle.com