58 - FORM NO. 56043121 - Advenger / 2800ST, 3400ST / BR 755, BR 855CONTROL BOARD J1, J2, AND J3 PIN OUTS AND TEST POINTSCAUTION!Always take measurements at the end connectors for troubleshooting purposes. If readings taken there do not indicate the problem, check thecontrol board as a last resort as damage to the board may occur (see Caution statements in “Replacing Operator Control Panel” section).Use a DVM and extended insulated probe tips (shown) to take the following measurements.CAUTION!Use only insulated test probes designed to backprobe. CONTROL BOARD IS POWERED during these tests.Perform steps 2 and 3 of “Replacing Operator Control Panel” section, observing noted Caution statements.J1 - Advenger / BR 755, 855 only - Brush deck lift actuator, squeegee lift actuator, chemical pumpTo backprobe J1 for voltages, leave J1 connected to the control board.Referenced to Measure J1 Measure Referenced toB++24V to M4 for 3 sec. deckdownward travel0V to M4 for 3 sec.deck upward travelORN/BLK 5 10 WHT/GRN0V to M3 for 3 sec.squeegee down travel24V to M3 for 3 sec.squeegee up travelB+B+0V to M4 for 3 sec. deckdownward travel+24V to M4 for 3 sec.deck upward travelBLU 4 9 BLK/YEL24V to M3 for 3 sec.squeegee down travel0V to M3 for 3 sec.squeegee up travelB+B+ Not measurable using DVM BLU/GRY 3 8 BLK B-2 7B- Not measurable using DVM RED/YEL 1 6Range of 24V measurements is 20 – 26 V
