A500 floppy drive power wires

CLXIV · 25 August 2021, 10:07

A quick peruse of the interwebs tells me that of the four floppy drive power wires, the last wire should be +12V. My drive only has two power wires though (the first two) so is the +12V not actually used?

hooverphonique · 25 August 2021, 10:08

If the drive only uses two wires, it's usually a 5V unit.

CLXIV · 25 August 2021, 10:09

Ah OK. So connecting all 4 wires to this drive wouldn't do any harm, but connecting this two-wire cable to another drive would not work?

CLXIV · 25 August 2021, 21:54

I should have looked again before posting - I have the LAST two wires, not the first two (i.e. I have the right side, wires 3 and 4). So instead of red-black-black-brown like most I see I have nothing-nothing-black-red. Doesn't look like the power cable is actually detachable from the drive though (at least not without opening the drive casing). Quite different to other drives I'm looking at.

25 August 2021, 10:07	#1
CLXIV Registered User Join Date: Nov 2019 Location: Eastbourne Posts: 157	A500 floppy drive power wires A quick peruse of the interwebs tells me that of the four floppy drive power wires, the last wire should be +12V. My drive only has two power wires though (the first two) so is the +12V not actually used?

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25 August 2021, 10:08	#2
hooverphonique ex. demoscener "Bigmama" Join Date: Jun 2012 Location: Fyn / Denmark Posts: 1,630	If the drive only uses two wires, it's usually a 5V unit.

25 August 2021, 10:09	#3
CLXIV Registered User Join Date: Nov 2019 Location: Eastbourne Posts: 157	Ah OK. So connecting all 4 wires to this drive wouldn't do any harm, but connecting this two-wire cable to another drive would not work?

25 August 2021, 21:54	#4
CLXIV Registered User Join Date: Nov 2019 Location: Eastbourne Posts: 157	I should have looked again before posting - I have the LAST two wires, not the first two (i.e. I have the right side, wires 3 and 4). So instead of red-black-black-brown like most I see I have nothing-nothing-black-red. Doesn't look like the power cable is actually detachable from the drive though (at least not without opening the drive casing). Quite different to other drives I'm looking at.

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