daguin
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- Joined
- Mar 29, 2008
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ok i got my macro shots...and they are quite large:undecided: so ill just link them.
https://dl.dropbox.com/u/4064914/IMGP0755.JPG
https://dl.dropbox.com/u/4064914/IMGP0756.JPG
https://dl.dropbox.com/u/4064914/IMGP0758.JPG
In the first picture (0755) you may have bridged the -05 component to the negative wire with either that loose strand or even the main wire if it was bent down that direction in the host
In the picture of the diode (0758), you appear to have solder flowing down onto the remnants of the ribbon board. If the solder flowed under the board or if the board moved down enough to touch the diode case, you will have shorted the diode there.
In all of the shots your excess wire sticking out should be trimmed. ANY of those pieces sticking up could short against the case.
Also, your diode needs to be pressed in further. It should be recessed slightly.
Test the driver as outlined above. Clean up your solder joints. Use flux. Probably, you will be replacing the diode. Remove all remnants of the ribbon cable and board. Insulate the pins with shrink tube and the driver with either shrink tube or tape.
When you re-build. TEST your set-up at EVERY step so you know where it went wrong if it doesn't work.
I test the switch in the host
I test the power leads in the host
I set the driver and double check the current (off/on/off/on/off/on)
I hook up the driver and test it again with the "native" power in the host
I hook up the diode and test it
I heat the shrink tube and test it
I push everything in place and test it
I assemble the entire laser and test it
I focus it and measure the output
No one is perfect. However, by doing that many tests/checks, if it doesn't work along the way, I know where the problem is. I do NOT have to rebuild it to fix it.
Peace,
dave
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