HP 2500C Series - Manual (Page 162)

Removal and Replacement of Parts (without Calibration) 7-12
Step 5. Remove the two screws on the chassis and
set them aside.
Step 6. Release the latches from left first, then the
right. Unlatch the one on the right with a
screw driver. Set the panel aside.
Step 7. Locate and disconnect the LED PCA
connectors.
Step 8. Remove the LED PCA by pushing back on
the hooks securing it and lifting it up.
.