Mod / Tag Identification; Voltages Resistances And Tolerances - Xerox WorkCentre 5687 Series Service Manual

Mod / Tag Identification

Figure 1, shows the Mod/Tag identification symbols.
These with tag symbols are used to identify the components
or configurations that are part of a machine change covered
by this tag number.
These without tag symbols are used to identify the
components or configurations that are used when this
tag is not fitted.
Figure 1 Mod/Tag identification symbols
Introduction
Mod / Tag Identification, Voltages Resistances and

Voltages Resistances and Tolerances

For AC power specifications, refer to GP 22 Electrical Power Requirements.
DC Voltage Levels and Tolerances
DC Voltages should be measured between an available test point and a machine ground.
Table 1 shows the range of the common voltages.
Table 1 DC Voltage Levels
Nominal voltage Voltage tolerance range RAP reference
0 volts 0.00 to 0.10V
+3.3V standby +3.23V to +3.43V
+3.3V +3.23V to +3.43V
+5.V +4.75V to +5.25V
+12V +11.4V to +12.6V
+24V +23.28V to +25.73V
Non-standard voltage levels will be quoted on the relevant circuit diagram. All other voltage lev-
els are plus or minus 10%.
Resistance Tolerances
All resistance measurement tolerances are plus or minus 10%, unless otherwise stated in the
procedure.
DC Signal Nomenclature
Figure 1 shows the signal nomenclature used in this manual.
August 2007
iv
01B 0V Distribution RAP
01J Power On and LVPS Control Signals RAP
01D +3.3V Distribution RAP
01E +5V Distribution RAP
01F +12V Distribution RAP
01G +24V Distribution RAP
WorkCentre 5687 Family