July 2019
vii
Xerox® B210 Service Manual
Voltage Specifications
Introduction
Initial Release
• This symbol is used to indicate that a test point, test hole, or test stake is available for
acce
ssing the signal line. The prefix indicates whether the access is a test point
(TP), test hole (TH), or test stake (TS).
6. Commoning Point
• This symbol is used to refer to a location in the machine wiring where more than tw
o
wires
a connected together at a single point.
7. Arrow
• This symbol points to the location to install, gain access to, or to release a compo-
nent.
Voltage Specifications
AC and DC Voltages
Measurements of DC voltage must be made with reference to the specified DC Common,
unless some other point is referenced in a diagnostic procedure. All measurements of AC volt-
age should be made with respect to the adjacent return or ACN wire, Ta
ble 1.
Logic Voltage Levels
Measurements of logic levels must be made with reference to the specified DC Common,
unless some other point is referenced in a diagnostic procedure, Tabl e 2.
DC Voltage Measurements in RAPs
The RAPs have been designed so that when it is required to use the DMM to measure a DC
voltage, the first test point listed is the location for the red (+) meter lead and the second test
point is the location for the black meter lead. For example, the following statement may be
found in a RAP:
There is +5 VDC from TP7 to TP68.
In this example, the red meter lead would be placed on TP7 and the black meter lead on TP68.
Another example of a statement found in a RAP might be:
There is -15 VDC from TP21 to TP33.
In this example, the red meter lead would be placed on TP21 and the black meter lead would
be pl
aced on TP33.
If a second test point is not given, it is assumed that the black meter lead may be attached to
t
he copier frame.
Table 1 Voltage Measurement and Specifications
VOLTAGE SPECIFICATION
110 to120 VAC 60Hz 100 to 132 VAC
Neutral to Ground VAC 0 VAC (+/- 5VAC)
+5 VDC +5.05 VDC TO +5.25 VDC
+12 VDC +11.4 VDC TO +12.6 VDC
-12 VDC -11.4 VDC TO -12.6 VDC
+24 VDC +22.8VDC TO +25.2 VDC
+36 VDC +34.2 VDC TO +37.8 VDC
Table 2 Logic Levels
VOLTAGE H/L SPECIFICATIONS
+5 VDC H= +3.00 TO +5.25 VDC, L=
0.
0 TO 0.8 VDC
+24 VDC H= +23.37 TO +27.06 VDC,
L= 0.
0 TO 0.8 VDC
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