Classic II, booted once, then appears dead.

"When you flip the switch, nothing happens,"

Don't flip the rocker switch. Leave it ON. Think of it as a service switch. Use the triangular button on the keyboard to start up, and choose shutdown off the special menu to shut down.

If it still won't start, you will need a new PRAM Backup battery.

zeppelin8711,

When you say +"i tried all the usual stuff,"+does that include a keyboard restart? Also known as a 'warm boot,' it will often get around dead battery issues. Turn on the computer, give it a minute to 'warm up.' Hold down the command key and the control key at the same time, then press the soft power key on the keyboard.

If you get no sounds or action of any kind, use a multi-meter and verify that you are getting power, ie. no bad fuses, cords etc..

Jim

There is a difference between soft power on and soft power reset. Take a 5200. It has an on switch but can also use the keyboard reset.

Hmmm, well it sounds like you are checking the logical suspects so lets go for the illogical ones.

-power cable, since this sounds like a no power issue did you swap it with a known good one?
-fuse in the power supply, sounds like you checked it, did you use a continuity tester?
-main cable from the power supply to motherboard, unplug and plug it back in, check for pulled wires and if you have a continuity tester check all leads.
-pram battery, I don't think this will be the issue but might as well be sure.
-check the motherboard for swollen/leaking capacitors although this issue shows up as video problems, http://www.kevinomura.com/macs/classicII/index.html
*the Classic II and Classic are nearly identical under the skin except for the motherboard so if it's a dead power supply you can probably swap one out of a Classic or swap in a Classic motherboard to check your power supply.

Kevin

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zeppelin8711 wrote:
Hi Kevin!

Powercable is checked 🙂 Fuse also, did conduction test, so it is ok. Tested the lot, even the capacitors on the motherboard are OK! Put the motherboard in a Classic to test it, and it worked, so it definetly is a power issue... sadly I don't even know where to start when searching for dead components on the powerboard.

Peter

You can use the power supply from a Mac Classic to fix your Classic II. In terms of board level repairs my first step would be the good old fashioned sniff test to see if you can smell something blown, also look at all the components for signs of burn out.

Did the Classic board boot in the Classic II? Shouldn't.

Failing that replace the component....which is typically what Apple's service source would recommend.

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Hmm I've done that, decided to repair a parts donor and wound up with Macs multiplying like bunnies...

Maybe check out a local computer recycler or the second hand shops and see what you find.... or not
as that can be dangerous..... also check eBay as well my feeling is the labour costs at the repair depot might be on the high side unless you know someone working at one.....

Kevin

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