Red Laser Module for PL 1700 RGB Laserworld Laser - Need Replacement

[BruceLavender]

Hi Chad,
Personally I would take Norty up on his offer ( although I think shipping might be a bit costly to Cape Town ) but on the upside you get a lot of free assistance as he has an excellent reputation on this and other forums. CNI will sell you the parts but don't expect any after sales service and since you a beginner you will need all the help you can get

[PURE]

Thanks Bruce I am good, I have QS, & LD 2000 Pro which is now Beyond Ultimate, I have
3 x FB3 & QM2000.

[PURE]

Hi Flecom

Thanks for the advice, I would like to get to know how to replace the Diodes myself, Im not an electrician but
alignment & precision is not too difficult for a Cnc programmer & machinist..

Can you send me a PM I would like to ask some advice on doing this if possible. Would the diodes be cheaper to
replace and obviously I would need to get a similar size/ mounting to fit in the existing housing and have
the same center height for the beam?

[PURE]

Hi Norty

Thanks for your reply.. I can look into that if you willing to email me the details.
Please check your inbox.

[flecom]

depends on what diodes were in there and if you can source them anymore, not sure without knowing what power/wavelength those diodes were

I would take up Norty on his offer, 642 laserwave modules were nice and for what he is asking, probably cheaper than buying the diodes anyway, assuming that's the problem with your module, could be your driver too

[kecked]

Put a one ohm resistor in series with a diode. Any diode 1n4001 for example. Put that in place of the laser diode or in your case do two of them. Turn on the laser and measure the current by measuring the voltage across the one ohm resistor. That should read 1mv=1ma. Now you KNOW the current and can safety select a diode.

ill add this to be complete. Of course that also means your supplying 5v modulation input D.C. For full current.