Replacing the smoke in a vintage Apple ProFile Hard Disk Drive

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An Apple ProFile 5mb hard disk drive lost the magic smoke, leading to a RIFA capacitor replacement. Let's see if it can come alive once again.
#retrocomputing #apple
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Опубликовано:

7 сен 2024

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Комментарии : 25

@douro20 Месяц назад

This was the world's first intelligent hard disk drive. It has its own operating system with extensive onboard diagnostics and presents itself with a simple parallel interface, requiring no dedicated hard disk controller. It performs a very thorough self-test when it powers up- this is why it takes so long before it is ready to be used. There's even a tool called the USBWidEx available which allows for servicing these drives with a modern computer- and it also works with the later Widget drives.

@breakallthethings Месяц назад

That's incredibly cool, thank you for the heads up!

@jnharton Месяц назад

That's called having embedded software (probably in a ROM chip). An operating system is something a little big more specific, it typically refers to software that provides certain core services to other software that is entirely separate. This is just an intelligent hard disk drive, but most peripherals are intelligent these days.

@primer1366 Месяц назад

Real and calm. Perfect combo

@mirrorcatz Месяц назад

A smoker's a smoker when the chips are down 🤣 ~Jackie Boy~

@CanizaM 28 дней назад

RIFA madness strikes again! It's usually the ones on the primary side that fail, often in the line filter that contains 3 of them. If there are any others on the primary they should be replaced too.

@johnvanwinkle4351 Месяц назад

Great fix. If you are going to keep it, I would recommend recapping the whole thing due to the age of the capacitors and the rare factor of these drives. Glad to see the drive still works.

@breakallthethings Месяц назад

I seriously considered it, but I'm going through that phase of wondering if I should proactively replace capacitors or try to keep it original until something goes wrong. I may go back and take care of the rest of them. At least the RIFAs tend to just make it non functional, rather than causing active harm.

@jnharton Месяц назад

@@breakallthethings If they look okay and aren't leaking, you can probably leave them alone. That said, it might be worth removing a few and seeing if they still have the rated capacitance. If they don't a full recap might be worth it just to ensure proper operation in the future.

@MotownBatman Месяц назад

New Sub! Detroit, Mich. I havent seen a ProFile in Years, but I defiantly havent ever used one. I wanna say the Computer Lab in Elem School Had one on the Lisa or Mac that was Head of the Class, the Apple ][s were linked to it as a Floppy Server I believe

@cwaldrip 19 дней назад

Replace All The Things! An old cap that’s not leaking, is just waiting for you to turn your back on it!

@giacgiac21 Месяц назад

Good video keep it up!

@SenileOtaku 19 дней назад

Neutral is going to the switch? Mr Carlson would have a few words to say about *that* configuration...

@SuperNathan90 Месяц назад

5mg would of been a lot and expensive back when it was new

@breakallthethings Месяц назад

I kept thinking about how much I could have done with 5mb on my Commodore, this must have been well used.

@jnharton Месяц назад

Heh. A new term for electronics repair: replacing/refilling the magic smoke...

@johnDingoFoxVelocity Месяц назад

yeah it funny with those caps

@xpaulyxable 29 дней назад

Is that an Amiga screen. Nice

@breakallthethings 29 дней назад

Good eye! I haven’t found a match for my IIgs yet, but had an extra 1080 that will work in a pinch. :)

@AndrewTubbiolo Месяц назад

You know back in the 1980's smoking was still allowed.

@jjohnson71958 Месяц назад

if the hdd was pata id use it

@breakallthethings Месяц назад

It sure has a great sound to it!

@transcanada9028 27 дней назад

It looks like the RIFA cap was a 610 volt and your replacement is only 310 volts. If I'm reading the caps right you may have more smoke to replace soon. If I'm reading them correctly... Also even though the other "RIFA" caps look ok I would still replace all of them. They can't be trusted.

@breakallthethings 26 дней назад

Good eye, but the 610 is unrelated to voltage. The other side shows a 250V part.

@transcanada9028 26 дней назад

@@breakallthethings Thanks for telling me what the voltage actually is. I still think I would change all RIFA caps just so you can protect the other circuit board from a possible over-voltage if any short out. I enjoyed your video and also subscribed. Thanks