SERVICING THE MODEL 2055

While the model 2055 player statistics panel 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 model number when calling.  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 Replacement

The LEDs that form digits are soldered on circuit boards mounted behind metal masks.  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 electronics inside the cabinet, always turn off the power when removing or replacing LED digits.  Figure 7 shows the components of a LED digit assembly.

Figure 7  LED Digit Assembly

1. The ribbon cable that connects to the rear of the circuit board is not designed to support the weight of the assembly.
2. Damage to the ribbon cable may create short circuit paths that will damage the LED driver module.
3. Place the assembly on a flat surface and remove the 6-32 kep lock nuts that hold the circuit board in place.
4. Remove the circuit board.
5. Align the mounting holes in the circuit board with the threaded studs on the mask and install the replacement digit on the mask.
6. Refer to figure 8 in order to plug the ribbon cable IDC connector onto the circuit board in the proper orientation.

Figure 8  LED Digit Ribbon Cable Connection Diagram

The power components are located behind the PLAYER FOULS POINTS panel at the top of the cabinet.  The following steps describe how to remove the PLAYER FOULS POINTS panel:

1. The cables that connect to the rear of the assembly are not designed to support the weight of the assembly.
2. Figure 9 shows the components behind the panel.

Figure 9  Power Components

Each row of digits in the player stat panels is controlled by its own LX driver board.  They are located on the rear side of the face panels between the player fouls and player points digits.

LX Driver Board Replacement

Electrical connections to the LX LED DRIVER BOARDS 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 scoreboard 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 circuit board, always turn off the power to the scoreboard when removing or replacing it.