A1000 SupraDrive 4x4 voltage select

Snoopy1234 · 04 November 2023, 05:06

I finally found a SupraDrive 4x4 hdd (60MB) to suit the A1000 after envying it many years ago. The one I found is currently running on 110v AC and I'm in a 220-240v area. BBOAH says it is 110v/220v configured. I'm guessing it's to early to be auto-switching (?) so am asking what is to be done to change it to 220v?

Snoopy1234 · 04 November 2023, 06:10

I've found more info on a Supradrive Removable cart type.

https://www.everythingamiga.com/2017...ly-photos.html

[ Show youtube player ]

I'm guessing it might have the same psu as it was advertised in the same era magazine ads. Although he hasn't confirmed the trace is the effective voltage regulator ??

When the SupraDrive 4x4 arrives, it will be interesting to see if it's the same.

Snoopy1234 · 05 November 2023, 12:59

Photo of early UK 30mb Supradrive psu found. [AtariForum]

Snoopy1234 · 05 November 2023, 13:06

Photo from [Amigos Retro Gaming] YT video of NZ removable cart Supradrive psu and trace in question.

Snoopy1234 · 06 November 2023, 06:07

SupraDrive 4x4 arrived from the US. 110v. Checked psu and it is a solid floating wire at the point on the psu board. Not sure how to proceed. Leave it 110v or snip the wire. No-one has confirmed this is all that's needed. It's being stored for now as there's no "stage-space" to set it up.

chiark · 07 February 2024, 13:29

Thread Necro! Well, at least only from 3 months ago... My Supradrive 4x4 has just arrived in the UK from the US, and it has the protek psu installed - the one with the beige circuit board. J4 is present. There's no markings to suggest voltage, or in fact anything...

Has anyone got any updates as to whether this is the voltage select on the PSU?

chiark · 07 February 2024, 16:24

The PSU is a Protek PX18-23 and the only reference I can find to that is as an 120V AC PSU...

The J4 link is bypassing a capacitor that seems to be acting as a secondary smoothing capacitor as a rectifier bridge... So that would help in 240v operation.

The major component doing a lot of the heavy lifting is a 2SC3153 power transistor that looks to tolerate a rectified 240v input, but I'm not betting on it.

There's also scorch marks from the heat sink on the input cable, so in other words the PSU isn't great, and I'm going to replace it with a Meanwell unit like I have done on my Xebec 9720H that recently died - only to be resurrected with a new PSU

TjLaZer · 08 February 2024, 05:55

Doesn't this take the power from the Amiga bus?

chiark · 08 February 2024, 14:20

No, it has a standard kettle lead on the back and an integrated PSU that provides 12v and 5v...

04 November 2023, 05:06	#1
Snoopy1234 Registered User Join Date: Apr 2022 Location: Australia Age: 52 Posts: 843	A1000 SupraDrive 4x4 voltage select I finally found a SupraDrive 4x4 hdd (60MB) to suit the A1000 after envying it many years ago. The one I found is currently running on 110v AC and I'm in a 220-240v area. BBOAH says it is 110v/220v configured. I'm guessing it's to early to be auto-switching (?) so am asking what is to be done to change it to 220v?

05 November 2023, 12:59	#3
Snoopy1234 Registered User Join Date: Apr 2022 Location: Australia Age: 52 Posts: 843	Photo of early UK 30mb Supradrive psu found. [AtariForum] Attached Thumbnails Last edited by Snoopy1234; 05 November 2023 at 13:07.

05 November 2023, 13:06	#4
Snoopy1234 Registered User Join Date: Apr 2022 Location: Australia Age: 52 Posts: 843	Photo from [Amigos Retro Gaming] YT video of NZ removable cart Supradrive psu and trace in question. Attached Thumbnails Last edited by Snoopy1234; 05 November 2023 at 13:09. Reason: credit

06 November 2023, 06:07	#5
Snoopy1234 Registered User Join Date: Apr 2022 Location: Australia Age: 52 Posts: 843	SupraDrive 4x4 arrived from the US. 110v. Checked psu and it is a solid floating wire at the point on the psu board. Not sure how to proceed. Leave it 110v or snip the wire. No-one has confirmed this is all that's needed. It's being stored for now as there's no "stage-space" to set it up. Attached Thumbnails

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04 November 2023, 06:10	#2
Snoopy1234 Registered User Join Date: Apr 2022 Location: Australia Age: 52 Posts: 843	I've found more info on a Supradrive Removable cart type. https://www.everythingamiga.com/2017...ly-photos.html [ Show youtube player ] I'm guessing it might have the same psu as it was advertised in the same era magazine ads. Although he hasn't confirmed the trace is the effective voltage regulator ?? When the SupraDrive 4x4 arrives, it will be interesting to see if it's the same.

07 February 2024, 13:29	#6
chiark Needs a life Join Date: Jan 2008 Location: England Posts: 1,707	Thread Necro! Well, at least only from 3 months ago... My Supradrive 4x4 has just arrived in the UK from the US, and it has the protek psu installed - the one with the beige circuit board. J4 is present. There's no markings to suggest voltage, or in fact anything... Has anyone got any updates as to whether this is the voltage select on the PSU?

07 February 2024, 16:24	#7
chiark Needs a life Join Date: Jan 2008 Location: England Posts: 1,707	The PSU is a Protek PX18-23 and the only reference I can find to that is as an 120V AC PSU... The J4 link is bypassing a capacitor that seems to be acting as a secondary smoothing capacitor as a rectifier bridge... So that would help in 240v operation. The major component doing a lot of the heavy lifting is a 2SC3153 power transistor that looks to tolerate a rectified 240v input, but I'm not betting on it. There's also scorch marks from the heat sink on the input cable, so in other words the PSU isn't great, and I'm going to replace it with a Meanwell unit like I have done on my Xebec 9720H that recently died - only to be resurrected with a new PSU

08 February 2024, 05:55	#8
TjLaZer Registered User Join Date: Sep 2004 Location: Tacoma, WA USA Age: 52 Posts: 1,918	Doesn't this take the power from the Amiga bus?

08 February 2024, 14:20	#9
chiark Needs a life Join Date: Jan 2008 Location: England Posts: 1,707	No, it has a standard kettle lead on the back and an integrated PSU that provides 12v and 5v...

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