Daktronics TI-2031 4-Inch LED Bar-Digit Locker Room Clock - Manual (Page 11)

Maintenance & Troubleshooting 5
Section 3: Maintenance & Troubleshooting
IMPORTANT NOTES :
1. Disconnect power before doing any repair or maintenance work on the display.
2. Permit only qualified service personnel to access internal display electronics.
3. Disconnect power when not using the display.
3.1 Component Access
To gain access to the internal components of the display (surface mount):
1. Remove top and bottom screws connecting front and rear cabinet.
2. Separate the front and rear cabinet pieces.
3. Unplug both the signal and power wires from the rear of the display.
4. Remove screws holding circuit board to front of the cabinet.
3.2 LED Drivers
The LED driver performs the task of switching digits on and off. Locker room clock drivers
contain all four LED digits together in one assembly. Locker room clock drivers have two
connectors that provide power and signal to and from the driver:
Connector # Function
J2 Power Input
TB1 Signal in and out
3.3 Replacement Parts
Refer to the following table for replacement parts.
Description Daktronics Part #
AS5K 4 Col Clock w/ Driver 0P-1150-0259
Transformer; 12 V AC T-1118