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Old 05-01-08, 07:42 PM   #1
Zero_Enigma
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Trouble shooting DX drivers.

Ok, I got some 16 mode DX drivers seeing how I've had good luck with them in the past and I like the way they grouped the lights.

Of the 5 that I own 3 work. The other 2 don't. I'm not sure WTF happened here.

I have a couple in testing use right now tho 2 of the 5 I ordered are not working. The DMM to the +tive and -tive rings on the back side show 5.2v with 4xAA NIMH however the wires from the reg to the LED's aren't showing up. THe other 3 I have are working fine. Just not sure what's wrong. I checked with a 12x grain scope and I don't see any solder bridges.

If I did short the regulator I could feel the batteries heat up but I did not feel any heat up on the battery.

I did you some solder paste to help clean off the soldering tabs as in the past when I could not solder anything to a SSC P4 U-bin LED I had (I even tried light sanding) the connection would not work but when I used some solder paste on the LED solder tabs then added the solder the LED worked right away. That said I used a little on the regulator.

I checked against the other 3 I have that are working right now and I have them soldered correctly. I'm using this for bike lighting. I have been using 4xAA NIMH Duracell 2650mAh cells which hot off the charger are ~5.8v which the people on DX have reported the driver maxes out at 6v max whih I am well below that.

My setup is this: batt -> switch -> Vin +/- (the rings area on the back side of the regulator. Middle is +tive and outside ring is -tive) -> regulator -> LED +/-.

Now I know the switch works. I tested that. I know the power is reaching the back side of the regulator (the rings) but when I test the wires leaving the regulator to the LED's most of the time they are either 0v or they read 5.2v.

Seeing as I got a reading on the LED side of the wires I proceeded to solder it to the single cree Q5 LED which I have tested before hand to me working to cut down variables.When I have soldered the reg LED wires to the LED then hooked up the battery and turned the unit on the LED did not power up. This is odd.

All my other 3 same regulators have been working no problems and for the curious I have been using a Weller soldering iron with a controllable thermostat and I was soldering the regulators at 45 x 10 setting.

Help please. I explained allI can in hopes someone can help me out. I was going to post this on CPF but thier new thread page bombed on me. -.-;

EDIT:

Forgot to link the driver I'm using.

http://www.dealextreme.com/details.dx/sku.7612 This is the driver.
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Old 05-01-08, 08:41 PM   #2
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Did you try changing modes?
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Old 05-01-08, 09:18 PM   #3
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Did you try changing modes?
Yes I did. When you turn the switch on the driver always has a mode on. There is no mode-0 AKA a mode that makes the driver not output any mode. I did flick the switch a few times.

When I was testing the wires from the regulator to the LED (wires not soldered on the LED yet) with a DMM I got 0.00v (perhaps my fingers did not have a good contact) and 5.2xv (the voltage of the battery). When I saw the voltage on the DMM I switched the switch on/off a few tiimes and still I did not see DMM change to different voltages so I know the problem is the regulator to the LED's point because the battery to the regulator shows voltage on the DMM.

Just want to see if there is something I can do before I open a claim to DX because I've got some other items I need to return as well.
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Old 05-01-08, 09:20 PM   #4
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It would appear that you got some faulty drivers. At their low cost, just order some more (plus spares!). They're certainly not worth shipping back to Hong Kong for a refund.
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Old 05-01-08, 11:04 PM   #5
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It would appear that you got some faulty drivers. At their low cost, just order some more (plus spares!). They're certainly not worth shipping back to Hong Kong for a refund.
Argh... I'm in a pickle of about $50 in parts out of a batch order of $150 parts. So for me I would like to recoup some losses. The driver is cheap yet works VERY good. I am bummed as this is the first time I have a ding with DX.

All my other items worked fine so far and I've ordered lots from them in the part.
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Old 05-02-08, 07:18 AM   #6
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Originally Posted by Zero_Enigma View Post
Argh... I'm in a pickle of about $50 in parts out of a batch order of $150 parts. So for me I would like to recoup some losses. The driver is cheap yet works VERY good. I am bummed as this is the first time I have a ding with DX.

All my other items worked fine so far and I've ordered lots from them in the part.
So go and make a ticket with DX already! Complaining about it here won't help you get a refund.
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