Who's installed a dan moto digital dashboard - having tachometer issues

[eran_k]

I installed the Dan-moto Nano dashboard, it has the same functionality as the "Classic" round unit or the 180 unit, but without temp sensor and fuel gauge.
Everything works fine but the tachometer, i hooked it up to the negative coil terminal (positive is fixed power) but i see no reading what so ever.
i know the coil is good since the engine works fine (both cylinders)
it's 1984 suzuki GSX400, electronic ignition, 1 coil per cylinder.

I sent an email to dan-moto and they replied that i should use a Y connection from both coils with diodes.
does this sound right?, isn't the fact that i don't get any reading (not half the turns,not bouncy...nothing) indicate that the unit might be defected?

Eran

 

[cxman]

the gauge is set to trigger from 2 impulses you are only giving it one to count

get the diodes and do the y it will then start to fire

 

[eran_k]

I found this drawing, but aren't the diodes suppose to be the other way around?

 

[mydlyfkryzis]

It looks like the diodes block Straight 12V from reaching the tach...The signal comes through the 100k resistors.

So I suspect the diodes are the right way........

Car tachs put the resistor internal and work directly off the 12V pulsing signal...

 

[cxman]

yes diodes look right sorry i didnt see this yesterday

 

[ct_racer]

Did you ever get this working. I'm considering one, and am curious about its performance.

 

[eran_k]

Everything is working except the tachometer, after few back and forth e-mails with danmoto support, it seems that i got a faulty unit.
they will fix it for free but i need to ship it over to china and i hope they'r not going to charge me for shipping it back to me + i bett it will be at least 4 weeks before i get it back :-(

 

[RedBullEnema]

Everything is working except the tachometer, after few back and forth e-mails with danmoto support, it seems that i got a faulty unit.
they will fix it for free but i need to ship it over to china and i hope they'r not going to charge me for shipping it back to me + i bett it will be at least 4 weeks before i get it back :-(

Hold on now..let me get this straight..
They sent you a unit that, after trouble shooting, they determine is faulty. They sent you a faulty unit. Now they need to replace said faulty unit and state that YOU have to pay for shipping to CHINA for the repair/replacement of a unit that was received not in working condition?!
If this really is the case, I think you need to put on your mean face and demand a replacement unit shipped immediately along with a return label for the faulty unit.

 

[eran_k]

they didn't say it's faulty,
they said that if i think it's faulty after all the tests i did, i should send it back to them and they will fix it. i hope that fixing means a new unit.
there's only one unit involved.
I do expect them to send the repaired \ replaced unit free of shipping cost.