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Old 09-07-2007, 06:49 PM   #1
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Default 4 PIN laser diode?

So I tore apart my DVD burner and got the laser diode out. It has 4 PINS on it. Has anyone seen this before? What pins do I hook up to the power? If anyone can help me please let me know.
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Old 09-07-2007, 06:51 PM   #2
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Default Re: 4 PIN laser diode?

? Picture please.
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Old 09-07-2007, 07:06 PM   #3
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Default Re: 4 PIN laser diode?

Oh hey man you are from youtube. Great videos BTW. I dont have a camera to take a pic with. :-/ But yeah It looks like a normal laser diode and there are 4 PINS on it.
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Old 09-07-2007, 07:11 PM   #4
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Default Re: 4 PIN laser diode?

Quote:
Originally Posted by o_DEATH_ANG3L_o
Oh hey man you are from youtube. Great videos BTW. I dont have a camera to take a pic with. :-/ But yeah It looks like a normal laser diode and there are 4 PINS on it.
thanks man. that one vid is not good to follow :, but the amount of views is pretty cool lol.

hmm. I would guess it looks like this? I have never seen one, I Just googled this ! Sorry man I have NO CLUE! :-/

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Old 09-07-2007, 07:16 PM   #5
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Default Re: 4 PIN laser diode?

provide the dvd manufacturer and model # to us.
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Old 09-07-2007, 07:22 PM   #6
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Default Re: 4 PIN laser diode?

Yeah it's an APEX AD-1110.
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Old 09-07-2007, 07:28 PM   #7
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Default Re: 4 PIN laser diode?

It is a player, not a burner. The diode will not do squat...sorry.
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Old 09-07-2007, 07:39 PM   #8
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Default Re: 4 PIN laser diode?

Ok so what would it do if I hooked it up to power? And why is there 4 pins?
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Old 09-07-2007, 07:59 PM   #9
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Default Re: 4 PIN laser diode?

They aren't very common, but occasionally you find 4 pin diodes. Normally there are 3 pin with a pin shared between the laser diode and photodiode. With a 4 pin diodes they are isolated. Unfortunately I can't tell you what pins do what on that diode, sorry.
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Old 09-08-2007, 12:21 AM   #10
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Default Re: 4 PIN laser diode?

If it looks like the picture, you can see that one pin is actually connected to the casing, that is your ground or negative, and you need a multimeter with diode testing mode or ohmeter to test the pins and see which one works...
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Old 09-08-2007, 03:51 AM   #11
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Default Re: 4 PIN laser diode?

hey its not odd i found a like 12mm 10-pin laser diode in my old early 90's cd player and i dont know what the hell to do with it
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Old 09-08-2007, 06:42 AM   #12
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Default Re: 4 PIN laser diode?

Quote:
Originally Posted by paper183
If it looks like the picture, you can see that one pin is actually connected to the casing, that is your ground or negative, and you need a multimeter with diode testing mode or ohmeter to test the pins and see which one works...
How would you test the diode with a multimeter thats got a diode testing mode in it? And what would it do would it light the diode or give you a reading of what mw or ma it is or what ever? Sorry i am dumb! and inexperienced... *:P
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Old 09-08-2007, 09:05 AM   #13
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Default Re: 4 PIN laser diode?

Sometimes, the newer 4 pin diodes will have combined IR and visible diode chips integrated into one package...that is how teh blu-ray diodes are, and the way the market could be heading for cheaper manufacturing costs...can you imagine an all in one diode that has blu-ray, red, Ir, Green, etc ? That would be pretty cool to see the technology progress that far !

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Old 09-09-2007, 12:59 AM   #14
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Default Re: 4 PIN laser diode?

Quote:
Originally Posted by SenKat
Sometimes, the newer 4 pin diodes will have combined IR and visible diode chips integrated into one package...that is how teh blu-ray diodes are, and the way the market could be heading for cheaper manufacturing costs...can you imagine an all in one diode that has blu-ray, red, Ir, Green, etc ? That would be pretty cool to see the technology progress that far !

G !
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Old 09-10-2007, 09:56 PM   #15
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Default Re: 4 PIN laser diode?

Arrowsmith: "DREAM ON" > ;D ;D ;D ;D

A neat toy to find in the attic.OOO
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Old 09-11-2007, 03:00 PM   #16
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Default Re: 4 PIN laser diode?

Quote:
Originally Posted by -W|tch-Doct0r-
[quote author=paper183 link=1189190965/0#9 date=1189210865]If it looks like the picture, you can see that one pin is actually connected to the casing, that is your ground or negative, and you need a multimeter with diode testing mode or ohmeter to test the pins and see which one works...
How would you test the diode with a multimeter thats got a diode testing mode in it? And what would it do would it light the diode or give you a reading of what mw or ma it is or what ever? Sorry i am dumb! and inexperienced... :P[/quote]
Diode testing mode or simply ohmmeter (they are usually the same on the multimeter) will only tell you if current goes between the 2 pins you touch
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