Who is interested in a groupbuy of Mark Kelly's DC controller PCB and related parts - Page 61 - diyAudio
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Old 7th March 2007, 04:52 PM   #601
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hoops , something wrong the motor is on but the led is off.
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Old 7th March 2007, 09:05 PM   #602
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problem solved the led wasn't shining but it was on, I changed it with a brither one.
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Old 7th March 2007, 09:15 PM   #603
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Quote:
Originally posted by patriz
problem solved the led wasn't shining but it was on, I changed it with a brither one.
Are you also using the 3 battery status LED's?

I installed mine on top of the enclosure. The on/off status LED is on the front panel.

Click the image to open in full size.
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Old 8th March 2007, 01:26 PM   #604
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very nice job, mine doesn't have the led charge indicator at the moment probably I will do it. But looking at its schematic made me wonder because I haven't found anywhere , probably my fault, the Vcc or power supply indication. In the web page explanation Mark Kelly taulk of 7815 regulator so I argued Vcc is 15V and I made it, but looking now at the charge status LEDs schematic there is a 18V ps. indication which is probably the right one even because with 15V ps I now see that CHARGE+ is 12,5V and 13,8V as it should be.
Giorgio
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Old 8th March 2007, 04:21 PM   #605
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maybe I need to be more precise , I'm asking how much is the voltage on X1 main board connectors, I have confused it with Vcc. Since the voltage dropout betwen pin 1 and 5 of the L200C , quoting the datasheet , is 2-2,5V certanly this voltage must be higher than 15V
Giorgio
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Old 8th March 2007, 05:10 PM   #606
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Yes is 18V. I tried it and now CHARGER+ is 13,8V.
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Old 31st March 2007, 03:21 PM   #607
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I have some instability issue when used with the error circuit, could be that I have wired VR4, VR5 and SW1 about 20 cm. away from the board they were supposed to installed?
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Old 5th April 2007, 01:35 PM   #608
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I've finished soldering ages ago, or so I thought, because last nigth I finally found time ( and energy ) to hook it all up, secure the motor and turn the thing on ! ..........No current to motor.

I need to use glasses when I solder.
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Old 5th April 2007, 02:04 PM   #609
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See my own version at My own Version of Mark Kelly's Speed Controller

Bye...
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Old 5th April 2007, 09:53 PM   #610
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Quote:
Originally posted by superhkm
I've finished soldering ages ago, or so I thought, because last nigth I finally found time ( and energy ) to hook it all up, secure the motor and turn the thing on ! ..........No current to motor.

I need to use glasses when I solder.

Nope, that was not it. I did over some solderpoints that didn't look to good, but no change.

In fact I realized I wasn't getting no voltage, I got 0.62 V.

That didn't help at all.

Ideas anyone ? I really don't have a clue how to troubleshoot this.
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