Sargon Scale Pickup Parts

Hello,

I am in need of a pickup for a Sargon TX350 scale or if anyone can tell me
were to get the parts I think I can repair it. One of the light emitting
parts appears to be bad, it doesn't readout the same as the rest. If anyone
knows were I can buy the parts or someone to do the repairs I would
appreciate the help. I have place pictures of the pickup and sensor on my
website so you can see the defective part ( it has a blue arrow pointing at
it).
http://www.clockmaker.com/Sensor/index.html

Jeff Hamilton