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Integrating the SC500 USB Controller
Table 2. LED Diagnostic Codes for SC500 Controllers
Flashes Self Test
Condition
1
Reserved.
2
ROM Error
3
Reserved.
4
Block 1
checksum Error
5
Hardware error
6
Reserved.
7
Reserved.
What's Next?
Since this is a HID (human interface device) compatible controller, the controller will
operate independent of a 3M Touch Systems driver. You must obtain a HID
calibration utility from the 3M Touch Systems website for initial calibration.
Additional 3M Touch Systems documentation is available from the corporate website
at www.3Mtouch.com or from the Touch Solutions CD (P/N 19-640).
Self Test
Description
Bit
0
Reserved
1
Firmware EPROM checksum
verification error
2
Reserved
3
Operating parameters invalid
(using defaults).
4
Power-up touch screen
connector voltages that are
out of range.
5
Reserved
6
Reserved
3M Touch Systems Proprietary Information
What to do...
No recovery. Replace the controller.
Cycle power off and on. If problem
persists, recalibrate
Check connection to the touch screen
13
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