SERVICING THE LOCKER ROOM CLOCK

While your locker room clock was designed for years of trouble-free operation, some problems may occasionally occur.  Electro-Mech Scoreboard Company offers onsite service in some areas.  In other areas, we can help you contact an independent service technician.  In areas in which service is not available from Electro-Mech Scoreboard Company, we will make every effort to answer your questions.  Our trained personnel at Electro-Mech Scoreboard Company are ready to answer your questions from Monday to Friday during the hours of 8 AM to 5 PM Eastern Standard Time.  Be sure to know your locker room clock model number when calling.  Locker room clock replacement parts are always available.  Damaged parts can usually be repaired at a significant cost savings.  Our convenient toll free number is listed at the bottom of every page in this manual.

COMPONENT REPLACEMENT

LED Digits And Indicators Replacement

The LEDs that form digits are soldered on circuit boards mounted behind the locker room clock face.  Do not attempt to replace individual LEDs.  In case of a malfunction, the entire LED circuit board must be removed.  To avoid damage to the LED driver module, always turn off the power to the locker room clock when removing or replacing LED digits.  Figure 5 shows the components of a LED digit assembly.

Figure 5  LED Digit Assembly

1. Remove the machine screws that fasten the face of the locker room clock.
2. Squeeze the end of tie wrap to release it.
3. Disconnect the wires and cable from the jacks on the LX11 driver board.
4. Place the face assembly on a flat surface and remove the 6-32 kep lock nuts that hold the circuit board in place.
5. Remove the circuit board.
6. Align the mounting holes in the circuit board with the threaded studs on the mask and install the replacement digit on the mask.
7. Refer to figure 6 in order to plug the ribbon cable IDC connector onto the circuit board in the proper orientation.

Figure 6  LED Digit Ribbon Cable Connection Diagram

Figure 7 shows the view inside the locker room clock.

Figure 7  Locker Room Clock Internal Components

LX11 DRIVER MODULE FUNCTIONS

LX Driver Board Replacement

Electrical connections to the LX driver board are made with ribbon cable polarized IDC sockets and locking ramp crimp terminal housings that mate with jacks on the circuit board.  The circuit board is secured inside the locker room clock on a metal bracket with two hex nuts.

1. Unplug the electrical connections from the circuit board.
   1. Remove the two hex nuts.
   2. Remove the circuit board from the scoreboard.
   3. Insert the replacement circuit board on the metal bracket in the scoreboard.
   4. Secure the circuit board with the two hex nuts.
   5. Insert the plugs into the jacks on the circuit board.

To avoid damage to the module, always turn off the power to the scoreboard when removing or replacing it.

LPS-130VA LED POWER SUPPLY MODULE FUNCTIONS

Figure 8 shows the location of the fuses in the LPS-130VA LED Power Supply Module.  The table following the figure lists the fuse ratings, functions, and part numbers.

Figure 8  LPS-130VA Fuse Locations

LPS-130VA FUSES

Note:  Other manufacturers’ fuses may be substituted for the Bussmann fuses.

LED Power Supply Module Replacement

Electrical connections to the LPS-130VA LED POWER SUPPLY MODULE are made with keyed plugs that mate with jacks on the left side of the module.  The module is secured inside the locker room clock with two machine screws.

1. Disconnect the plugs from the jacks on the module.
2. Remove the two machine screws.
   1. Remove the module from the locker room clock.
   2. Insert the replacement module in the locker room clock.
   3. Secure the module with the four screws.
   4. Insert the plugs into the jacks on the side of the module.

To avoid damage to the module, always turn off the power to the locker room clock when removing or replacing it.