72 Document: GAR_SM_4601777 (4/16)Component Check Procedures Section 7Reading the LEDs - SIB - Diagnose Platen ErrorsPosition IndicatorsCheck the amber LEDs 6 & 7 on the SIB:LED 6 (HOME) LED 7 (UPPER )ON OFF PLATEN MUST BE UP (AT OR ABOVE THE UPPER SWITCH)OFF ON P LATEN MUST BE DOWN (AT OR BELOW THE HOME SWITCH)ON ON P LATEN MUST BE BETWEEN THE HOME AND UPPER SWITCHESOFF OFF ERROR - AT LEAST ONE LED MUST BE ONIf the platen position does not correspond to the LED pattern, check that the Position Sensor connector is properlyseated on the SIB (front left corner) and that it is wired correctly.Motion IndicatorsCheck the LEDs 10, 11 & 12 on the SIB:LED # C OLOR10 BLUE MOTOR IS MOVING DOWN11 GREEN MOTOR IS MOVING UP12 RED ERROR - MOTOR IS OVERCURRENTIf LED 10 or 11 is lit, the motor is trying to move the platen. If LED 10 is lit and platen is at the bottom the motormay be on the lower overtravel switch. Similarly, if LED 11 is lit and platen is fully open the motor may be on theupper overtravel switch.If LED 12 is lit or blinking while the platen is moving, the SIB has detected an overcurrent condition, and there maybe binding or an obstruction at some part of the mechanism.Check that the motor encoder connector is properly seated on the SIB (front middle-right) and that it is wiredcorrectly.
