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View Full Version : How to turn on a Quadra 950?



Raven
March 15th, 2010, 10:20 AM
I have a Quadra 950 - I diagnosed it as dead (PSU likely), but seeing as I'm new to Classic Macs I could well be wrong. This particular machine confuses me, as it's one of the Macs with no clear power switch. I tried hitting the power button on the keyboard, tried the two odd buttons labelled what look like play and record on the back of many of this era's Macs, and nothing did anything. I don't recall if this one had one of those little lock switches, but if it did I played with that too. It has a keyhole on the front with power markings but no key, it was already in the on "|" position, and I found that I could turn the keyslot with my fingernail, so I tried all kinds of positions on it (fail lock!).

Ideas?

linuxlove
March 15th, 2010, 10:38 AM
I believe those two buttons are the reset and programmers switch buttons. The keyhole is what turns the system on but you need an actual key for it.

Raven
March 15th, 2010, 10:44 AM
Any tricks to get around having a key? Perhaps if I open the case and rewire the switch, or some sort of item in the keyhole to act as a key?

Unknown_K
March 15th, 2010, 12:13 PM
The key is only used to keep the unit off, neutral position where the start button on the front or keyboard on button turns it on, or the third position that disables the keyboard and mouse (server mode).

You can jumper the motherboard where the lock cable goes to to bypass it. While 950 power supplies can die, they are probably the best built and most reliable Apple 68K power supply made. I suggest you try to disable the keylock (I asume you do not have the key) and see if it works.

Off hand I don't recall which combination works but there are only 4 or 6 pins I think so it can't be that hard to figure out.

Chuck(G)
March 15th, 2010, 03:53 PM
You know, the title of this thread had me tempted to suggest dinner at a fancy restaurant, later at your place, soft music and dim lights...

But I won't. :)

NeXT
March 15th, 2010, 05:28 PM
Once you determine if it is the key switch you need, you can replace if tor about $20. (http://cgi.ebay.com/Quadra-900-950-Door-Lock-assembly-with-key_W0QQitemZ180082765217QQcmdZViewItemQQptZLH_Def aultDomain_0?hash=item29edc4eda1)

Raven
March 15th, 2010, 06:08 PM
You know, the title of this thread had me tempted to suggest dinner at a fancy restaurant, later at your place, soft music and dim lights...

But I won't. :)

lol :D

billdeg
March 15th, 2010, 07:11 PM
the keyboard has the on-off button, right?

Unknown_K
March 15th, 2010, 08:04 PM
Yes, top right corner. The 950 has the same symbol on the front buttons.

Raven
March 16th, 2010, 02:48 PM
Got it to turn on today - dunno what I did wrong the other day but with the key hole aligned to "|" and hitting the power button, it just worked. Perhaps I was tired and didn't have a keyboard attached or who-knows-what the other day, but it works now. No OS on it at the moment though, apparently - no worries though. :)