Board Will Not
Communicate
with PC
Bad Serial Connections
Check/replace serial cable
Bad or Conflicting Com Port on PC
Shut down other tasks that may also be using the same com port IRQ or I/O
address on the PC
Use a different PC
Low Battery or Power Supply Out of Usable Range
Restore power to within correct range
J4 is on the Wrong Setting
Board Will
Not Calibrate
Excess Capacitive Load
Reduce burst length
Reduce Cx loading
Shorted X or Y Matrix Line
Low Power Supply Voltage
Noisy or
Erratic Signal
Noisy Power Supply
Matrix or matrix cable too close to a noise source such as a power line or
switching noise source
Use
Noise Sync
feature to overcome
Increase distance to noise source
Place grounded shield between noise source and matrix
Ground Loop Interference
Matrix or Matrix Cable not Mechanically Stable
Strong RFI from a Transmitter or Adjacent Digital Product
Insufficient Signal Filtering
Increase burst length and threshold level
Increase the detection integrator level
TROUBLESHOOTER
