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Hoping to ID this connector for LED array power supply

cbjfan2009

Mar 9, 2023
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Hello everyone. I came across this forum looking to ID this connector. It looks deceptively like an old PS/2 connector, but there are little notches/dimples in the metal pin surround. It also seems like the insides are 180* rotated from normal. I tried plugging this into a PS/2 port on an old desktop, but didnt work. This powers an old school LED array (maybe 15+ year old model). Any help would be appreciated. I'd like to connect it to a Pi as part of an inline barcode scanner (this light was for a scanner camera originally). Thanks!20230308_142821.jpgIMG_20230308_152600_01.jpg
 

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Bluejets

Oct 5, 2014
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cbjfan2009

Mar 9, 2023
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Hey folks, thanks for the replies. I think you're right. I knew it looked familiar, but couldn't place it.
Does s-video (or 4-pin mini DIN carry power (3.3 or 5v) normally?
 

Bluejets

Oct 5, 2014
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Does s-video (or 4-pin mini DIN carry power (3.3 or 5v) normally?
Depends on the application but all the above carry some form of 5v signal at least.
I'd imagine the plug would be good for an amp or so.
 

cbjfan2009

Mar 9, 2023
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Thanks so much. With that wiring diagram in hand, maybe I'll strip the connector and use the wires to a RBPi for power.
 

AnalogKid

Jun 10, 2015
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When used for an S-Video connection, the 4-pin mini-DIN connector has two GND connections, but no power or audio connections. The connector itself was around before the S-video standard adopted it, and in other applications the pins can have just about any low-voltage signals or power. The pins are too close together for mains voltages. I checked with Digi-Key, and they have some DIN connectors rated for 2 A per pin. I would not push the pins that hard.



ak
 

kellys_eye

Jun 25, 2010
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Don't think I've ever seen an application for the S-video connection used! I know I've had equipment with the facility but the S-video has always been seen (used) as an 'add-on' rather than a useful requirement. No surprise that they re-purpose the older plug arrangement for power - at least it makes finding spares a bit easier!
 

Martaine2005

May 12, 2015
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My old laptop with windows ME had a S-video out on it. I used to connect it to my large CRT TV and watch DVDs on the bigger screen.

Martin
 

cbjfan2009

Mar 9, 2023
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I imagine this is still a low voltage application where I found it. LED light array is probably 3.3 or 5v.... but no more than 24VDC (that's the aux output on machine it came off of. The machine ran 3 phase 220VAC input for the big motors, had 120VAC output for attachments, and some 24VDC accessories I think).
 

cbjfan2009

Mar 9, 2023
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That was for FS-i6 trainer lead....your application will be different.
Yes, thank you for the reminder. Blindly plugging could result in chaos. Any way of guessing which pins should be hot for the light array?
 
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