Daktronics NPN-4100 Series, Руководство пользователя

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NPN-4100 Series Installation & Service Quick Guide Page 6 of 6
DD3830324
Rev 01
17 January 2019 201 Daktronics Drive
Brookings, SD 57006-5128
www.daktronics.com/support
800.325.8766
10. Place mask jigging pieces (MP-4021293) in the corners of the tile
spanning between four tiles. There should be a
1
/
2
pixel space between
the main mask and the jigging mask. Refer to Figure 51 . Do not place
jigging pieces around the perimeter of the display.
Note: Do not use excessive
force to apply the jigging
pieces, as this can shear
LEDs off if the tiles are not
aligned enough.
11. Place jigging pieces one by one
from left to right in the lower-left
quadrant. Refer to Figure 50 .
12. Shift down a row and place jigging
pieces one by one from left to right. Refer to Figure 50 .
13. Repeat Step 10 and Step 11 for the other quadrants, always starting at
the center of the display and working toward the left or right and then
toward the top or bottom. Refer to Figure 50 .
14. Cut a mask jigging piece (MP-4021293) in half horizontally or vertically
with a scissors and remove the middle rib to create two top or bottom
pieces. Repeat this step until there is a sufficient amount of pieces.
15. Cut a mask jigging piece (MP-4021293) in half horizontally and vertically
with a scissors and then in half again horizontally and vertically to
create four corner pieces.
16. Start at the vertical center seam and place the top perimeter jigging
pieces. Repeat this step for the bottom perimeter jigging pieces.
17. Start at the horizontal center seam and place the left perimeter jigging
pieces. Repeat this step for the right jigging pieces.
18. Place the corner jigging pieces.
Service
Remove Module
1.9 mm Module
Reverse the steps in Install Module (p.4) to remove a 1.9 mm module.
2.5 mm Module
1. Disconnect power to the display.
2. Locate the module to be removed and use the tile removal tool to
remove the 10 mask jigging pieces between the tiles around the
perimeter of the module. Refer to Step 2 in Remove Tile (p.6) .
Note: It might be necessary to rock the tile removal tool back and
forth to disengage the jigging pieces.
Figure 51: Tile Mask Jigging Piece
3. Remove the tile with the tile mask from the display. Refer to Remove Tile
(p.6) .
4. Reverse the steps in Install Module (p.4) to remove the module after
all 10 jigging pieces are removed from the perimeter of the module.
Remove Tile
The tile removal tool is required for installation and removal of any tile.
Each module has six tiles as shown in Figure 52 . Ensure the tool is turned fully
counterclockwise when not in use and when placing on the module face.
Refrain from attaching the tile tool to any highly magnetic objects, as it is
difficult to disengage the tool from these objects.
1. Disconnect power to the display.
2. Use the tile removal tool to remove the tile from the display.
Figure 52: Tiles on Module
Figure 53: Tile Removal Tool on
Module
a. Place the disengaged tile tool flush on the tile to be removed and
slowly turn the tool handle clockwise until fully depressed. Refer to
Figure 53 .
b. Pull the tool straight off of the tile face slowly after the tool is fully
engaged.
3. Remove the ribbon cable from the rear of the tile.
Reverse these steps to install a tile.
Remove Power Supply
1. Disconnect power to the display.
2. Remove the module on the right side of the panel (when viewed
from the front) and disconnect the power and signal cables from the
module. Refer to Remove Module (p.6) .
3. Pull the cables gently and rock the AC connector back and forth to
disconnect the connector from the power supply. Refer to Figure 54 .
1
Figure 54: Disconnect AC
Connector & Female
Quick-Disconnect Connector
2
1: AC connector
2: Female quick-disconnect connector
Figure 55: Tab Orientation
Note: Take note of the tab orientation on the connector. The tab
should be oriented toward the bottom of the power supply
(when viewed from the front) during installation. Refer to
Figure 55 .
4. Disconnect the female quick-disconnect connector from the power
supply. Refer to Figure 54 .
5. Route the cabling away from the power supply.
6. Use a Phillips screwdriver to loosen the screws securing the power
supply to the panel.
7. Slide the power supply assembly
up on its keyed bracket to release
from the panel. Lift the power
supply slightly to access the terminal
connectors.
8. Hold the power supply in place and
use a Phillips screwdriver to loosen the
terminal screws. Remove the terminal
connectors and take note of the
positive and negative connections.
Refer to Figure 56 .
9. Remove the power supply from the
panel.
10. Use a Phillips screwdriver to remove
the M3 screws securing the power
supply to the bracket.
Reverse these steps to install a power supply.
Figure 56: Remove Terminal
Connectors
1
1: Positive 12 V
2: Negative 12 V
2