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Old 12-27-2012, 11:18 PM #1
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Default Cannot locate diode in DVD Writer TS-H652

Hi all,

I'm fairly new to lasers and such. I just acquired a DVD writer today and disassembled it to find the burning diode(s)...however, I was only able to find and extract these four components, none of which look like the typical laser diode...the round metal housing with the three leads. I am attaching pictures of what I found. Am I missing something? I followed the typical instructions for extracting what I need, but what I need didn't seem to be there...

It's a 2007 model if that helps.

Thanks in advance!
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Cannot locate diode in DVD Writer TS-H652-2012-12-27-18.11.37.jpg   Cannot locate diode in DVD Writer TS-H652-2012-12-27-18.11.53.jpg  


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Old 12-27-2012, 11:24 PM #2
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Default Re: Cannot locate diode in DVD Writer TS-H652

Sometimes the sled don't have the 5.6mm can diode. They contain other format diodes like black square package. It is a hit and miss with the unknown sleds.

Nowadays the red diodes are very cheap. Buy the LPC-826 diode which have an output of 300-400mW.
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Old 12-28-2012, 02:18 AM #3
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Default Re: Cannot locate diode in DVD Writer TS-H652

Great, thank you very much! I will pick up a diode directly or try another burner. =)

Guess it's worth noting for posterity that this specific model does not have the diode needed for a project like this.
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Old 12-28-2012, 02:20 PM #4
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Default Re: Cannot locate diode in DVD Writer TS-H652

They work electrically just like the canned diodes, just they are harder to figure out how to mount. Basically, you want to have a good thermal path between the metal tab and your module/heatsink/host.

Here's some threads that may be of interest, similar diodes.

Flat Plastic Diodes for Testing
Flat Red Laser Diode Testing - 2nd Phase
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Old 12-28-2012, 05:16 PM #5
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Default Re: Cannot locate diode in DVD Writer TS-H652

Excellent, thanks so much! I never would have known how to find those otherwise.
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