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Laing DDC pump repair PCB mod - Page 2

post #11 of 37

Worked up a blog on the Toshiba version here:
http://martinsliquidlab.org/2011/04/...ddc-pump-mods/







Next I'll work on the Sanyo version and try my hand at doing the mod myself on Bmaverick's DDC1 pumps..
Edited by Martinm210 - 4/14/11 at 11:12pm
    
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post #12 of 37
How was the soldering, difficulty scale wise? SFM is a pain in the arse.
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post #13 of 37
That's amazing to see 3gpm running about 12W on the far right of the chart.

9.5VDC may make the Toshiba unit run like the 3.25 with less power consumed using a performance top for both. Going with a stock top, do you think the voltage would go even lower compaing the two as stock? Or because the flow is restricted some, the curves would be much different?

Funny that the Toshiba board is called DIYINHK. That's Do-It-Yourself In Hong Kong. LOL
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post #14 of 37

Soldering is advance, but not bad at all if it's on a DDC1 and you're able to retain the original coil wire lengths. Get's tricky if you break a wire and have to extend it though, because the coil wire is coated and hard to clean and tin for an extension.

Updated with my Sanyo Blog here:
http://martinsliquidlab.org/2011/04/...placement-mod/






The Sanyo version is nice and quiet on a DDC1. I manged to solder both the Sanyo and the Toshiba on bmaverick's DDC-1 and both work just fine. I'll have some testing to do on the DDC1/Toshiba. I think it is more powerful than the DDC1/Sanyo, but not quite as extreme as the DDC3/Toshiba. Different windings make the controllers behave differently.

Both are very good though, Sanyo for similar performance plus Silence and the Toshiba of high performace with some added noise.
    
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post #15 of 37

Sound testing video of the Sanyo DDC1 vs Laing DDC1 vs Laing DDC3.2


Cheers!
Martin
    
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post #16 of 37
Thanks for that video Martin!
    
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post #17 of 37
Martin, how long did it take for the pump to arrive? Is it sent via EMS?
post #18 of 37
Sure...

Mine was sent by super fast EMS, only took a few days...definitely a nice change over other shipping methods from that far away.
    
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post #19 of 37
Martin, so now, have you found the ideal DDC pump for flow and lowest noise?

Also, did you get a chance to make a DIY step-by-step on how to solder the new PCB to the DDC pumps? That would be a great help to those looking to achieve what your findings do show.

Great to see the work and time you have put into this. Hats off to you friend!
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post #20 of 37
Quote:
Originally Posted by bmaverick View Post
That's amazing to see 3gpm running about 12W on the far right of the chart.
Isn't that 29 Watts? I think you're reading off the pressure line.


Awesome pump though.
    
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