Service manual

Main PCBA
Preparations
The exterior cover must be removed prior to proceeding. (980428-101)
If needed, load the Printer Information Software Utility into printer test PC. (980428-157)
Tools:
#1 Philips screw driver
28 980428-110 Rev. 1 Prelim.
Screws
Removal
1. Use the Print Information software utility to
extract the printer’s serial number and head
life prior to PCBA removal, if possible.
2. Disconnect all the external cables and
power cords from the printer.
3. Disconnect the motor, DC power, and the
printhead cables from the main PCBA.
4. Remove the four (4) mounting screws
holding the main PCBA to the center panel.
5. With the sensor and control cables still
attached to the main PCBA, gently lift the
main PCBA off the stand-offs.
6. Set the old main PCBA gently aside, next to
the power supply. Have care not to
disconnect the sensor and control cables.
Installation
1. Mount the main PCBA on the stand-offs
and secure the main PCBA to the center
panel with the four (4) mounting screws.
2. Swing the old main PCBA next to new
PCBA with both boards’ sensor and control
connectors and cables accessible.
3. One at a time, disconnect the sensor and control cables from the old board and plug them
immediately into to the matching location on the new PCBA. Remove the RTC from the old
PCBA (if present) and place it on the on the new PCBA. See RTC Installation, 980428-112.
4. Connect the motor, DC power, and the printhead cables to the new main PCBA.
5. Power up the printer and load media to verify operation with the AutoSense routine.
6. Use the Printer Information utility to set the previous PCBA’s serial number into the new
PCBA and head life reporting parameters (inches or millimeters) to track printer and head life.