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Defective MCP655 Question

post #1 of 3
Thread Starter 
Hi guys,

After I installed the bits power top and blacksparkle modkit on this new pump, it wasn't working at all during my leak test. So I checked the pcb and there I see a brownish looking color surrounding some of the solder points. Fyi, I did remove the molex connector of the pump to sleeve it and if I remember correctly, the red wire should be on the first pinhole and the black on the second. My understanding is that the red wire should be connected to the yellow wire of the female molex, right?

I need your help confirming if I did get the pins wrong causing my pump to die on me.
Ayrton Senna
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Ayrton Senna
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post #2 of 3
Black (cold) on the pump pcb should go to one of the 2 blacks on the molex. Red on the pump pcb (hot) should go to the 12v aka yellow on the molex. Try checking to make sure you didn't short anything by connecting 2 solder pads or wires.

If you burned out the board, you're pretty much screwed. It's possible to fix, but would require the knowledge of an electrical engineer. Unfortunately, there are no replacement pcbs for the laing d5 (aka mcp650/mcp655) pump.

If you need to replace it, and can't afford to spend another $80, get an mcp350 from bmaverick, mod it to 1/2" inlet, and install the custom diyinhk pcb for ddc 3.1's. That will run you ~$30 bucks for ~mcp35x performance.
post #3 of 3
Thread Starter 
Quote:
Originally Posted by gregory121295 View Post
Black (cold) on the pump pcb should go to one of the 2 blacks on the molex. Red on the pump pcb (hot) should go to the 12v aka yellow on the molex. Try checking to make sure you didn't short anything by connecting 2 solder pads or wires. .
yeah, I did place the wires at the correct place as you mentioned....Guess this was defective from the start....Sadly, having it replaced would no longer be an option for me. I calculated the shipping costs and it would take more than half of the item's worth since I will be shipping from the Philippines.

I'm now looking into the option of having this repaired instead...hopefully I can find someone..

$89 wasted....damn....

Anyway, thanks for taking your time in responding though..
Ayrton Senna
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Ayrton Senna
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CPUMotherboardGraphicsRAM
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