Daktronics P1753, Display Manual

Troubleshooting

16

Replacing a Driver

If the driver status indicators are not working correctly, the driver may need replacement.

1� 

Open the front panel as described in 

Component Locations and Access (p.14)

.

2� 

Remove the metal cover of the driver enclosure by lifting it up, then back and down 

to expose the driver components.

3� 

Disconnect all plugs from the driver by squeezing the locking tabs together and 

pulling the connectors free. It may be helpful to label the cables or take a picture to 

know which plug goes to which jack when connecting the replacement driver.

4� 

Remove the nuts securing the driver to the inside of the enclosure.

5� 

Carefully lift the driver from the display and place it on a clean, flat surface.

6� 

Position a new driver over the screws and tighten the nuts.

7� 

Reconnect all plugs to their mating jacks on the driver. The connectors are keyed 

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

8� 

Ensure the new driver is set to the correct address. This will be the same address of the 

old driver being replaced. Refer to 

Setting the Driver Address (p.16)

.

9� 

Put the metal cover back on the enclosure, securely close the front panel, and then 

power up and test the display to verify the issue has been resolved.

Setting the Driver Address

Reference Drawings:

Address Table; Rotary Switches H and L ........................................................

DWG-1198765

Since the same LED drivers can be used for many display models, each driver must be set 

to receive the correct signal input, or address, for the model being used. 
•  For 16-column “Gyrus” drivers, addresses 

are set through the S2 (L) and S3 (H) rotary 

switches on the driver (Figure 7) using a small 

flathead screwdriver. The displays in this 

manual will always be set to 

Address 2

, where 

H = 0 and L = 2. 

•  For older 16-column drivers built prior to April 

2015, addresses are set through the S1 dip 

switch on the driver using a pen or small, 

pointed object. The displays in this manual will 

always be set to 

Address 2

, where switch 2 is 

set to ON (up).

Replacing Batteries

As the batteries age, they may lose capacity to sufficiently operate the display, even 

on a full charge. When replacement becomes necessary, use the same brand of 

battery as the original equipment. Similar batteries may be used as long as they meet 

the specifications for the display. If a different brand must be used, be sure that the 

terminals are oriented the same as in the original to ensure a proper connection. Refer to 

Replacement Parts (p.17)

 for part numbers of batteries and fuses. 

Mounting brackets hold the batteries in place at the bottom of the display. The bracket 

is designed to hold batteries measuring 7" high, 6.5" wide, and 5" deep (178 mm, 165 mm, 

127 mm). The bracket is not designed to support a battery of different dimensions.

H
L

Figure 7: 

Driver Address Dials