Hammer Driver And Power Supply Pcbas - Printronix P9012 Maintenance Manual

Hammer Driver and Power Supply PCBAs

Removal
High electrical potentials are present on the hammer driver and power
supply PCBA capacitors when the printer is powered down. To avoid
shock hazard and damage to the equipment, wait at least 5 minutes after
powering down before removing the hammer driver or power supply
PCBAs.
NOTE: The hammer driver and power supply PCBA locations are labelled
1. Remove the right side panel as described on page 6–4.
2. Loosen two screws (1) and remove the cover (2).
3. Lift the ejection levers (3) and slide the PCBA (4) out of the card cage
(5).
Installation
Installing a PCBA in the wrong slot will damage the PCBA and
connector.
1. Slide the PCBA into the correct slot in the card cage.
2. Engage the ejection levers and close to seat the PCBA.
3. Install the cover and tighten two screws.
4. Install the right side panel as described on page 6–4.
6–74
at the top of the card cage. Removal/installation is the same for all
cards. The Power Supply 3 PCBA is illustrated.
(Figure 6–25)
WARNING
CAUTION
Replacement Procedures