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Yes, the LED on the outside of the case. 

I have a ton of old ProDrives which I am using in my various Macs. (Yes, I'm a purist and will use these hard drives as long as I am able to maintain them). I keep them in working condition, but have one minor issue with the LEDs... The plug for the access LED is a smaller size on the newer...

If your hard drive isn't getting powered, it's almost certainly a power supply issue. I had an LC that was going through this same process and a re-capped power supply solved the problem. I had another LC on which the hard drive wouldn't even power up sometimes. Again, a new power supply solved...

The tubes are the same, but the connectors may vary. A Plus CRT will work. Not all Classics will. There's a thread on this forum about compact Mac CRTs--read it over to see the difference between the A and B connectors on the Classic. All Pluses and SE models (both regular and /30) have the...

Try Silverlining. I've ben able to use it for all of my non-Apple disks.

Chances are good it was proprietary, albeit given to three manufacturers of the PSU. I believe Apple designed it alongside TDK, at least from what I recall of early notes on the LC. I'd say about 90% of LCs have TDK PSUs. The other 10% were made by Astec and Delta. Delta PSUs are easy to spot...

A roll call on here may or may not be accurate. Again, we have our preferences, and there are probably a disproportionate amount of SE/30s and CCs compared to the real world. I've actually flipped three CCs and four SE/30s in the past fifteen years. All have sold at a profit and sold rather...

Having entered the Apple world when compacts were still being sold, I can offer some insight, but no set figures. We know about how many 128K/512K are out there given when the million mark was hit. The 512K was produced thereafter for a short time as the 512Ke (which really began in 1986) and...

I have nine LC and LC II machines and all work without a PRAM battery.

Have you formatted this drive recently? -199 represents a drive map error. Alternately, try copying the files directly from the System 6 floppies to the drive. There is nothing to decompress on a System 6 disk so the files can be copied without any problems. If you have the 1.4MB floppies, just...

The tabs are along the grooves on the sides. You'll want to use a small screwdriver. To avoid leaving scratch marks, wrap the blade in electrical tape. Apple's ZFP SCSI hard drives (i.e. 20SC) use the same disassembly procedure.

Adding hard disks was always the way to go, but very few saw it due to the price unless they truly did the math and a little shopping, even in the very early days. Case in point: my Mac LC and its storage issue. When I got the machine in 1992, it came with a 40MB drive. That was the more...

A few second floppy notes: 1. The LC II lacks the connector for the second floppy but it looks like most of the framework for it is there. Other than the 030, extra RAM, and lack of second floppy connector, the most notable change on the LC II board is the fact there are pin connectors for the...

It should use the same cable as the SE. Mini DIN-8 on both ends.

Does the iMac G3 make any noises when the display does this? I saw (and heard) this problem in a Bondi a few years back. I'd suspect the flyback first but wouldn't rule out any component driving the video or on the analog board. Best to take this one component-by-component.

I believe the RAM is the same since they share the same connector. I'm not sure about video though.

I'm having this same problem with a recently-acquired CC. I do have two known good logic boards to pop in (a 520 and a re-capped 550), so I can test this hypothesis for you this weekend.

Popped a spare in and ran it for 20 minutes. No problems. The hard drive also failed to spin up two weeks ago. It worked fine today.

When I started the computer up, it kept restarting every few seconds and the hard drive would start to spin down.

I have an LC, both logic board and PSU re-capped, with a strange issue. The logic board appears to build up some sort of weird charge over time. It causes video interference over time and today caused the computer to short out while starting up. I unplugged the PSU from the board, re-inserted...