Service manual

D.3b LED Indications:
The following LED indications apply only when using BB+H line code.
• LED 1 ON/OFF every second indicating operation (except when LED 2 is
lit)
• LED 2 ON indicates busy: line code read taking place, calibration read
taking place, or machine speed sample being done.
• LED 3 ON indicates line codes will be read using calibration data that has
been stored. OFF indicates line codes will be read without using
calibration data that has been stored.
• LED 4 ON indicates line codes will be read using high tolerance read
scheme. OFF indicates line codes will be read using low tolerance read
scheme.
Note:
LED’s 1-4 are all turned on while the boot functions are being done. All the
lights will stay on if a problem is detected in the hardware of the line code
reader card.
• LED 5 Input of lead edge detection sensor probe 1 (sensing paper LED
off).
• LED 6 Input of lead edge detection sensor probe 2 (sensing paper LED
off).
• LED 7 Not used.
• LED 8 Input of selected line code sensor (Probe 1 or Probe 2).
PRINTED WIRING BOARD INFORMATION
420T V6LT OPERATOR & SERVICE MANUAL ISSUE 2009/06 Rev. 6/21/2011 SECTION D – PAGE 127
071-33370-400