Jebao DP-4 & DP-4S Hardware differences

[ShaneB]

Hi all,

I have two Jebao DP-4 dosing pumps. The first one I received was defective (has a rather odd fault where the clock doesn't run when the power is turned on, but works fine when power has been disconnected), but I ended up keeping with partial refund as spare parts.

I've now got another and I'm wondering whether anyone would know what the differences are internally between a DP-4 and a DP-4S? Could I potentially disconnect the control panel board from the defective unit and link the two via 6-pin RJ12 cable (without connecting power), or are there other differences?

It would be a shame to let it go to waste. I'm assuming there must be a short around the RTC chip or something like that on the defective unit.

Thanks.

Shane

 

[Big G]

Bump

 

[ShaneB]

Thanks very much for the bump. I'm no closer to a solution at this stage, but at least I have a functional DP-4 on my tank now. An extra 4 pumps for additional additives wouldn't go astray though. I've setup a USB microscope on my PC, so will start looking over the boards in detail to see if I can spot a fault.

Shane