Recent content by croissantking

No, it's not like that at all. Part I used is TDK PS1240P02BT. Here's a video I created of my ZuluSCSI, it sounds the same on my BlueSCSI V2 PowerBook editions:

Hey, the piezo buzzer works fine. There's not much I can say about it – it's a cheap solution that does the job if you want audible feedback for disk access.

I’ve seen this on a 180 under System 7.1, when you disable sleep in the PowerBook control panel it shows a warning about image persistence.

The schematics indicate the Beige’s MFM floppy footprint is connected directly to the Heathrow chip. There is no empty controller chip footprint like on the Tanzania board.

That bodge wire is from factory.

Here is a comprehensive PDF guide I put together that will be useful for anyone wishing to take apart their Quicktake 100 or 150 for recapping. I am maintaining a BOM on Mouser. I wasn't sure if this should be an Article or Document, hopefully I made the right choice.

Have you recapped the analog board yet? I’ve seen that when I had a poor flyback anode connection to the CRT.

Please don’t hot plug SCSI devices - it’s not designed for that and you could do serious damage. BlueSCSI won’t run off the back of a PowerBook as it doesn’t provide the termination power needed. You might be able to plug in a USB cable to provide power that way?

Looks like it has pads to take up to a total of 3MB.

If it’s not the stock drive you’re using, maybe the voltages are too low from the pin header? The next thing to try would be another LED, I guess.

Just to say, as an IWII owner I’m very excited to see this project in development. Is the plan to combine the features of both the AppleTalk card and the memory expansion card that were originally available?

Better than a logic board fault, I’d say!

The sound issue might just be a bad connection to the internal speaker. The design the IIsi uses - sprung contacts under the logic board - is notorious for being flaky. Try inspecting and cleaning the contacts as well as the pads on the logic board which press against them.

It’s entirely possible but a big undertaking, not sure who out there would be interested in designing such a card. In the meantime, if you have a Rev. 2 Personality card, you already have an unpopulated USB footprint that can be added on to :) It seems that Apple had planned to have this...

I’ve fixed another 840AV board! It was in such appalling condition, having been ravaged by the worst cap corrosion I’ve ever seen plus some nasty battery leakage on top of that. It’s taken most of the year, but not 5 years like @Mac84 :D I’d previously recapped it, desoldered/cleaned/replaced...