Dover Markem-Imaje 5200, Service Manual

Page: 132 / 200

SECTION 6 Field Replaceable Parts
6–28
0855855eng 6/08
3. Place the control board in the static-shielding bag and close the
bag.
4. Unplug the transformer connector from the printhead volt board
(2, Figure 6-21).
5. Unplug the ink line connector(s) from the printhead volt board. If
it is not already marked, mark on the orange tag on the ink lines
the number written on the corresponding connectors (3, Figure
6-21) on the printhead volt board.
6. Remove the one screw securing the printhead volt board (4,
Figure 6-21).
NOTE: Before removing the printhead volt board, take note of how
the two ribbon cables are folded behind the printhead volt board in
order to be able to repeat the same folding when installing the new
printhead volt board. An example of a folded ribbon cable for the
left-hand side is shown below (Figure 6-22)
.
Figure 6–22
7. Slide the volt board forward and off the six keyhole standoffs.
8. Disconnect the two ribbon connectors from the backplane board.
9. Disconnect all the connectors from the backplane board (Figure
6-23).
10. Open the I/O door on the back side of the machine and
disconnect all the connections from the I/O panel (Figure 6-23).
11. Loosen the six Phillips head screws two turns each (1, Figure
6-24 ).
12. From the front side of the machine, slide the I/O panel assembly
upward and out of the keyhole slots.
13. Rotate the assembly to clear the volt board standoffs.