Xerox WorkCentre 5687 Series Service Manual page 7

Logic level when the
signal is available
Figure 1 Signal Nomenclature
Table 2 shows the signal tolerances.
Table 2 Signal tolerances
Signal voltage (H) logic level
+5V +3.85V or greater
+3.3V +2V or greater
Non standard signal tolerances will be quoted on the relevant circuit diagram.
NOTE: The logic level shown with the signal name will be the actual signal as measured with a
service meter. This will not necessarily be the same as the logic state shown on the diagnostic
screen.
Samples of RAP reference text
Throughout the manual there are linked references that extend the diagnostic procedure or
add more information.
Go to Flag 1. Check Q08-300. Refer to:
NOTE: This links to a particular part of the circuit diagram within a RAP.
• GP 11 How to Check a Sensor.
NOTE: This links to General Procedures information.
• Figure 1, IOT PWB
WorkCentre 5687 Family
Signal description (event that
causes the signal level change)
Voltage supplied to
the signal circuit
Wire colour
(L) logic level
At or near 0.8V
At or near 0.8V
August 2007
v
NOTE: The P/J links to the connector location on the PWB in a circuit diagram.
NOTE: The PWB links the connector to the pin layout on the PWB, referenced in the Wir-
ing Diagram section.
• 01D +3.3V Distribution RAP.
NOTE: This links to a RAP.
Install new components as necessary:
• Tray 1/2 feed sensor, PL 7.30 Item 24.
NOTE: This links to the parts list. If installation of the new component is simple, the parts
list artwork is sufficient to show how the component is assembled in the machine. If instal-
lation of the new component is not simple, the parts listing will contain cross references to
repair procedures and adjustments, as necessary.
Symbols Used in Circuit Diagrams
Refer to Figure 2.
Voltages Resistances and Tolerances
Introduction