[Diy_efi] WB working need help with LED Display

[bcroe at juno.com]

OK, Try this.  

The outermost red LED is just a power on indicator.

Connect up the 4 display leads to the WB, no sensor 
needed and low battery OK (engine off).  But move the 
display pin 10 (VOUT) to the same place the pin 3 (VREF) 
is connected, WB J9.  Now you should measure 2.5V from 
grd (J12) to J9, no LEDs on.  Check U2 pins 8 and 14, 
should also show 2.5V.  U2 pins 7 and 1 should measure 
within 0.1V of the same.  U3 and U6 should measure 3.75V 
on pins 4 and 8, 5.0V on pins 6 and 7, 8V on pins 3 and 9,  
0V on pin 2.

Bruce Roe

On Sat, 14 Sep 2002 23:00:25 -0400 "Daniel R. Nicoson"
<A6intruder at adelphia.net> writes:
> I just finished my installation of my DIY-WB and it seems to work 
> according to my data log.
> 
> I’m trying to use The LED display from Bruce Roe, I think I must 
> have fried something during the soldering process.

> The display lights the outer-most red LED and the first 5 Green LED 
> (nearest
> center).
> 
> Any thoughts on how to trouble shoot?
> 
> Thanks,
> 
> Dan Nicoson
> HM:  (814) 868-0003
> WK:  (814) 774-0888
> 


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