Tried the box today, i could only get + - 8% on fuel, and even less in "fine tuning" Gonna play a little more wit it tomorrow.
What ohm should i see when turning fuel knob max clockwise ? between pin 7 and 8 or 7 and 12 or is it between 12 and 8 ?
10kohm pot
DTA Dyno Box/Serial Cable -- Schematics and Pictures
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Re: DTA Dyno Box/Serial Cable -- Schematics and Pictures
The actuial pot doesn't really matter, it is a potential divider you are making, the output should see almost 0v one end and 5v the other end of the scale.
the pot track needs ground one end and 5v the other, the signal is taken off the wiper.
the pot track needs ground one end and 5v the other, the signal is taken off the wiper.
Re: DTA Dyno Box/Serial Cable -- Schematics and Pictures
ok, thanks so i am looking for 5 or 0 volt at pin 6 and 7 when the pots at at maximum and minimum ?
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Re: DTA Dyno Box/Serial Cable -- Schematics and Pictures
The pot will matter in as much as is it a single turn pot, or multiple turns to achieve any target ?
I know the ones I used require around a single full turn, although I' sure I recall them wanting to be 4.7k ?
From my notes, these are what I used.
http://www.maplin.co.uk/p/omeg-4k7-ando ... eter-fw01b
I know the ones I used require around a single full turn, although I' sure I recall them wanting to be 4.7k ?
From my notes, these are what I used.
http://www.maplin.co.uk/p/omeg-4k7-ando ... eter-fw01b
Re: DTA Dyno Box/Serial Cable -- Schematics and Pictures
Ok thanks
They are regular 270 degree.
Didn't get to play with that today, had some fuel pump problems, so i am making some changes...
They are regular 270 degree.
Didn't get to play with that today, had some fuel pump problems, so i am making some changes...
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Re: DTA Dyno Box/Serial Cable -- Schematics and Pictures
yes, the voltage at pin 6&7 should vary 0 to 5v when you twiddle the pots, sounds like you just have the pot wired up wrong.
Re: DTA Dyno Box/Serial Cable -- Schematics and Pictures
Problem solved it was in fine tuning, somehow it didn't always change when clicking on it, but seems to be fine now Thanks
I have another problem regarding the aux channels, but i can make a new tread in General for that
I have another problem regarding the aux channels, but i can make a new tread in General for that
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Re: DTA Dyno Box -- Schematics and Pictures
stevieturbo wrote:Link above shows markingsstevieturbo wrote:A bigger, perhaps clearer image here
http://www.quantums.info/dtalead.htm
And not forgetting as per DTA's pinout schedule that flash programming switch goes between pin 8 and 13 of the 15pin connector.
I got only this message on the page: You do not have permission to view this directory or page.
Vhy??
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Re: DTA Dyno Box/Serial Cable -- Schematics and Pictures
It's an old web page, maybe it's finally died ?
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Re: DTA Dyno Box/Serial Cable -- Schematics and Pictures
Pics from that page enclosed