Daktronics TN-2011, Display Manual

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TNMC Maintenance 6-7
Note: To access the controller from the rear of the TNMC, as shown in
Figure 14 above, remove the appropriate rear-access panel from the TNMC
by loosening all four of the screws. Slide the access panel sideways to the
larger part of the keyhole and carefully lift it off the TNMC. Take
care not to drop the panel, and remember that the module controller is
attached to the panel.
2.
Disconnect power from J17.
3.
Remove all power and signal connections from the board. Release “locked”
connectors by squeezing together the tabs, and then carefully pulling them
from the jack. Label the cables, indicating which cable was removed from
which connector; the labeling will be helpful when you replace the board.
4.
Remove the four nuts holding the board in place.
5.
Follow the previous steps in reverse order to install a new controller board.
Modules and Drivers
Reference Drawings:
Exploded Front View; Single Panel Module................. Drawing B-126111
Exploded Rear View; Single Panel Module ................. Drawing B-126112
The module and driver board are a single, functional unit. To remove a module,
complete the following steps:
1. The modules are attached to an
internal frame called the
module mounting panel. Find
the latch-access fasteners
(referred to as “latch plugs” on
the drawings) on the front of
the module. One is centered
below the top row of pixels
and one is centered above the
bottom row. (They may be
slightly hidden by the louvers.)
2. Unlatch the latch fasteners,
illustrated in
Figure 15 , by
turning them a quarter-turn
using a
7
/
32
" nut driver. Turn
the top latch clockwise and the
bottom latch counterclockwise.
Carefully remove the module and detach the ribbon cables. Label the
cables, indicating which cable was removed from which connector; the
labeling will be helpful when you replace the board.
Figure 15: TNMC Module (Rear View)