DIY-WB LED problem (KC-5300 display)

[Crescent Kao]

Thanks Peter for the reply,
   I double checked all the solder connections at the 8-pin connector and
everything seems ok. I also checked the pin and socket connections from the
Display PCB to the processor PCB, everything seems ok there as well...
Here's 2 pics of the assembly:

www.c-speedracing.com/temppics/diy_wbo2/dsc00151.jpg
www.c-speedracing.com/temppics/diy_wbo2/dsc00152.jpg

  I'm stumped.

Crescent Kao
Director of Marketing and Sales
www.c-speedracing.com


----- Original Message -----
From: "Peter Gargano" <peter at techedge.com.au>
To: <diy_efi at diy-efi.org>
Sent: Sunday, January 20, 2002 2:43 AM
Subject: Re: DIY-WB LED problem (KC-5300 display)


> > Crescent Kao wrote:
> >
> > I recently ordered the LED Jaycar display for the WBO2 project.
> >
> >   http://www.techedge.com.au/vehicle/wbo2/wbfmd.htm
> >
> > [snip]
> >
> > I'm stuck and don't know what the problem may be..
>
> I had some trouble myself with the original kit (built for the LSM-11, pre
> WB-PCB). I isolated the problem to the comparator IC2a, but changed that
chip
> without success.
>
> I finally got some joy after replacing the socket and resoldering around
the
> 8 pin IC2. I was never sure if it was the original 8 pin socket, or just
my
> soldering job, but it sure wasted some time...
>
> Also, the kit can be pretty finicky about the pin and socket
interconnections
> between the processor and display PCB. When I was writing the new software
I
> actually use three short lengths of ribbon cable with pins and sockets on
each
> end, so I wouldn't have to split the two boards just to changes the
software.
>
> Peter.
> --------------------------------------------------------------------------
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