DX 6090 Not working anymore

WESBC

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I just got the 6090 drop in today. I put it in my 6P and there was a gap, so I took off the outer spring. It fit with no gap, but would no longer turn on. I put the spring back on, but it still isn't working. I was using cr123's measured at 3.05 volts each. Is there anything to look for or check?
 

kramer5150

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you need to unscrew the brass pill a turn or two so it bottoms out against the inside body tube. its adjustable, to compensate for tolerance stackups inherent in the surefire design. you should have a small (~.5mm) bezel gap, that will ensure the pill is contacting the body tube. You can also use a 9V battery to touch the springs and check the module outside of the light... just make SURE you get the polarity correct.
 

madi05

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kramar they should sticky your youtube for the the dx dropins ,, u are the man when it comes to those,, i know i for one appreciate u :twothumbs

i have a couple of the items we discussed coming so stay tuned

madi05
 

WESBC

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Mar 2, 2007
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I just tested it with the 9v battery and it is still not working. Positive on the inside spring and negative on the outside spring.


EDIT: I also used a multimeter to test the positive/negative terminals while connected to a 9V battery and it is reading 0.00-0.01 V
 
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kramer5150

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That doesn't sound good... lets take a it a step further.

Double check battery test only this time use one of your known good primary cells. Connect 2-3 inch long wire segments onto the cell, one to the + and a SEPARATE one to the -. I use masking tape to secure the wires to the battery, and just press the wires onto the cell by hand.

With the other hand touch the + battery wire to the + contact spring, while touching the - battery wire directly onto the brass pill. It should light right up.

If not, remove the reflector from the brass pill and repeat the procedure. There is supposed to be a white insulator on the back of the reflector. If that piece is missing and the LED wires short to the reflector it will not light.

I go into a little detail in this vid.
http://www.youtube.com/watch?v=uY3bfuxayVw

If you still cant get the pill to light up then you have a bum module, you'll need to use their "Customer Service Express" and open an RMA case. Take pictures, follow the procedure and mail it back (USPS with CONFIRMATION # !!) to the address provided by the case worker.

I had to do this recently for a wrong item shipped, it took ~20 days extra but they came through.
 
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WESBC

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Mar 2, 2007
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That doesn't sound good... lets take a it a step further.

Double check battery test only this time use one of your known good primary cells. Connect 2-3 inch long wire segments onto the cell, one to the + and a SEPARATE one to the -. I use masking tape to secure the wires to the battery, and just press the wires onto the cell by hand.

With the other hand touch the + battery wire to the + contact spring, while touching the - battery wire directly onto the brass pill. It should light right up.

If not, remove the reflector from the brass pill and repeat the procedure. There is supposed to be a white insulator on the back of the reflector. If that piece is missing and the LED wires short to the reflector it will not light.

I go into a little detail in this vid.
http://www.youtube.com/watch?v=uY3bfuxayVw

If you still cant get the pill to light up then you have a bum module, you'll need to use their "Customer Service Express" and open an RMA case. Take pictures, follow the procedure and mail it back (USPS with CONFIRMATION # !!) to the address provided by the case worker.

I had to do this recently for a wrong item shipped, it took ~20 days extra but they came through.


I was looking at the module before class, when all of a sudden the circuit board became separated from the pill. I figured there was a bad ground connection.

I did what you said, but instead connected the ground to the outside ring what would normally be connected to the pill. It lit right up once the it touched. Now I am off to solder the board back to the pill.

Thanks a lot! I appreciate your help. I became sad when it stopped working and also when my 52mm lens didn't fit in my D cell maglites. Now that that I know its not broken I am happy again. Thanks again!
 

kramer5150

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I was looking at the module before class, when all of a sudden the circuit board became separated from the pill. I figured there was a bad ground connection.

I did what you said, but instead connected the ground to the outside ring what would normally be connected to the pill. It lit right up once the it touched. Now I am off to solder the board back to the pill.

Thanks a lot! I appreciate your help. I became sad when it stopped working and also when my 52mm lens didn't fit in my D cell maglites. Now that that I know its not broken I am happy again. Thanks again!

COOL!!! glad to be of assistance.:)

DX quality is hit or miss. I think anyone wanting to get into DX lights should be prepared to do a little DIY tweeking to get things just right.

I forgot to mention that for all my modules I flow some additional solder around the perimeter of the DX board (where yours broke loose), and I also reflow solder around the small spring.
 

WESBC

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Mar 2, 2007
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COOL!!! glad to be of assistance.:)

I forgot to mention that for all my modules I flow some additional solder around the perimeter of the DX board (where yours broke loose), and I also reflow solder around the small spring.


I did just that! It works flawlessly now.
 
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