Daktronics GPR-12EV-RGB - Manual (Page 42)

36 Parts Replacement
Multi-Line Controller Replacement
Tools required: 5 /
16
" Nut driver
1. Turn off power to the
display.
2. Remove the module
directly in front of the MLC
on the left side of the
display. Refer to the
appropriate Layout
Drawing for exact location.
3. Disconnect the fiber-optic
cables.
4. Remove all ribbon cables,
labeling the module
number as they are
removed to insure proper
replacement.
5. Remove the six nuts
holding the board in place using a 5 /
16
" nut driver.
6. To install the new MLC, move the unit into place and replace the six nuts that hold it
to the display back. Reconnect the fiber-optic and ribbon cables. Turn on the power,
observing the boot-up sequence. Note that the LEDs to the right of the fiber-optic
cables are on; DS23 to the left of the fiber cable should be off. Refer to Figure 35.
Figure 35: Multi-Line Controller