Daktronics P1753, Display Manual

Troubleshooting

14

Component Locations and Access

Reference Drawing:

Component Location; TI-2203 .........................................................................

DWG-3438261

Component Location; TI-2215 .........................................................................

DWG-3438262

To gain access to the internal components of the TI-2003/TI-2203, remove the screws 

securing a digit panel to the display face, and then carefully lift the panel away from the 

scoreboard, sliding it out and down. 

DWG-3438261

 in 

Appendix A

 illustrates both digit 

panels removed, exposing the internal components. 
On the TI-2015/TI-2215, the front panel is hinged on the left side. To gain access to the 

internal components, simply unlock the two latches securing the front panel to the 

display cabinet, and swing it open. 

DWG-3438262

 in 

Appendix A

 illustrates the front panel 

open, exposing the internal components. 

Note: 

Disconnect power before servicing the display! Also turn power 

OFF

 when the 

display is not in use. In addition to discharging the batteries, prolonged power-on 

may shorten the life of some electronic components. 

Replacing Digit Segments

Digits that are 24" or larger are composed of seven circuit 

board segments. The digit segment circuit boards are 

mounted to the back of the digit panel (

Figure 6

). Do not 

attempt to remove individual LEDs; it may be possible to 

make repairs by removing just the defective segment. 
To replace a digit segment:

1� 

Open the front panel as described in 

Component 

Locations and Access (p.14)

.

2� 

Disconnect the 2-pin plug from the back of the digit 

segment by squeezing the locking tabs together while 

pulling the connector free.

3� 

Use a 9/32" nut driver to remove the nuts securing the 

digit segment to the inside of the panel, and then lift 

the digit segment off the standoff studs.

4� 

Position a new digit segment over the studs, and 

tighten the nuts.

5� 

Reconnect the 2-pin plug. This is a keyed connector 

and it will attach in one way only. Do not force the connection.

6� 

Close and secure the front panel, then power up and test the display to verify the 

issue has been resolved.

Segmentation and Digit Designation

Reference Drawings:

Segmentation, 7 Segment Bar Digit ...................................................................

DWG-38532

Component Location; TI-2203 .........................................................................

DWG-3438261

Component Location; TI-2215 .........................................................................

DWG-3438262

In each digit, certain LEDs always go on and off together. These groups of LEDs are 

called segments. 

DWG-38532

 in 

Appendix A

 details which connector pin is wired to each 

digit segment and the wiring color code used throughout the display. 

A

B

F

C

E

D

G

Figure 6: 

Digit Segments & Panel