Voltage Measurements - Xerox Phaser 3425 Service Manual

Voltage Measurements

1. Power and signal grounds are connected to the frame ground. All circuit
troubleshooting can be performed using the metal frame (chassis) as the
grounding point. To locate connectors or test points, refer to "Wiring Diagrams"
on page 10-1 for more information.
Unless otherwise specified, the following voltage tolerances are used within this
section:
Stated
+3.3 VDC
+5.0 VDC
+24.0 VDC
0.0 VDC
Error Messages and Codes
Measured
+3.135 to +3.465 VDC
+4.75 to +5.25 VDC
+21.6 to +26.4 VDC
Less than +0.5 VDC
3-7