Part No. 920525 Rev A - Wayne 3/VISTA series Service Manual

3.1 COMPUTER BOARD LED INDICATORS)
Processor Activity Indicator
DS1: Red (Heartbeat) LED indicates processor activity. It will be blinking on and off at a steady rate as long as
the processor is running properly.
Power Indicators
These LEDs only indicate the presence of a voltage. They do not assure that the levels are correct.
DS6: Green LED indicates that the board is connected to power source on its 24VDC input line.
DS7: Green LED indicates that the board is generating 5VDC to power the logic.
DS8: Green LED indicates that the board is generating 8VDC for use on board and to power
associated assemblies.
DS13: Green LED indicates that the board is generating 15VDC which is used to power
the attached WIPs.
DS14: Green LED indicates that the board is generating 5VDC for use onboard.
Communication Activity Indicators
POS Communications:
DS5: Red LED indicates activity on the Host Receive Line. The LED is on when the line is low.
DS12: Green LED indicates activity on the Transmit Line. The LED is on when the line is low.
Display Bit Bus Side 1 and 2 Communications:
DS3: Red LED indicates activity on Receive Line. The LED is on when the line is high.
DS9: Green LED indicates activity on the Transmit Line. The LED is on when the line is high.
WIP (Pulsers) Communications:
DS4: Red LED indicates activity on Receive Line. The LED is on when the line is low.
DS11: Green LED indicates activity on the Transmit Line. The LED is on when the line is low.
CAN Bus Communications (Future Use for Harmony, eVista, Ovation):
DS2: Red LED indicates activity on Receive Line. The LED is on when the line is low.
DS10: Green LED indicates activity on the Transmit Line. The LED is on when the line is low.
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Part No. 920525 Rev A

June 2001