Power On Self-Test Power to the Companion is in good working order when all of the following occurs upon plugging the power supply into the Companion: • The power module outputs 22 Vdc +/- 25%. • The main motor and gear train rotate for approximately one half of a second and produce an audible hum. • The pickup roller rotates approximately 22.5 degrees and the scan roller rotates approximately 90 degrees. • All 36 green LEDs in the image sensor light up briefly. Power Supply If the power supply does not output 22 Vdc +/- 25%, replace the power supply. The power supply should output at least 15 Vdc when connected to the Companion. Figure 4-1 shows the test points.
Test Points (minimum 15 Vdc) Figure 4-1 Control Board Power Cord Voltage Test Points If the voltage falls below the minimum 15 Vdc, the Companion is overloading the power supply. 1 Replace the control board. 2 Replace the motor. 3 Replace the power supply. 4-2 Troubleshooting EN