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Old 04-16-2009, 01:59 PM #1
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Default Looking for info on barcode scanner diode

I found a mutilated Spectra-Physics VS1200 barcode scanner in the trash at my work place. Apparently someone tried to power it directly with 220V and not with a 5V/12V adapter. After the smoke came out the guy disassembled it and threw it away.

I think the diode module will still be okay.

How hard will it be to figure out what pins to power on the driver module?

Thanks
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Old 04-16-2009, 02:01 PM #2
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Default Re: Looking for info on barcode scanner diode

Here is a picture of the mirrors. Are they too big to be used for a spirograph? (Average size about 3cm x 5cm)
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Old 04-18-2009, 09:43 PM #3
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Default Re: Looking for info on barcode scanner diode

I'm surprised you haven't got a response yet. The circuiit board you are holding has an LM392 on it, which is an op-amp, and may be part of either a current source or the receiver circuit. The best thing for you to do will probably be to take the diode itself out, and power it with a driver circuit. I'm no expert, but the mirrors should be ok - as long as you can find a motor capable of moving them fast enough. Give it a go, there's no harm in trying
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Old 04-19-2009, 08:14 AM #4
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Default Re: Looking for info on barcode scanner diode

I think they're weak 635nm red diodes, and that heatsink is to give it a long operational lifetime. The mirrors are probably worth more and be more fun to play with, though it might be a nice rig to put a laser diode into anyway.
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Old 04-20-2009, 12:03 PM #5
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Default Re: Looking for info on barcode scanner diode

I see this scanner was manufactured in '95, so the diode will be fairly useless...

So for now I'll focus on the mirrors.

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