........................3

SCOREBOARD INSTALLATION........................................................................4

MECHANICAL INSTALLATION..........................................................................................4
Post Installation
..........................................................................................................................4
Mounting The Scoreboard
............................................................................................................6
MOUNTING HARDWARE .....................................................................................................6
Mounting The Optional Top Sponsor Panel
....................................................................................8
ELECTRICAL INSTALLATION............................................................................................8
Ground Connection
.....................................................................................................................8
Power Connections to Upper Scoreboard Cabinet
...........................................................................9
Control Cable Connections to Upper Scoreboard Cabinet
................................................................9
Power Connection to Scoreboard
................................................................................................10
ScoreLink 300
...........................................................................................................................10
Control Cable Installation
..........................................................................................................10
Control Console Connections
......................................................................................................11
Control Console Safety Warning
.................................................................................................11
SCOREBOARD OPERATION ............................................................................12

SCOREBOARD STARTUP....................................................................................................12
GAME TIME OPERATION ..................................................................................................12
Control Console Key Functions
...................................................................................................13
SCOREBOARD SHUTDOWN ..............................................................................................16
SERVICING THE SCOREBOARD ....................................................................16

TROUBLESHOOTING TIPS ................................................................................................16
COMPONENT REPLACEMENT .........................................................................................16
LED Digits And Indicators Replacement
......................................................................................16
LED Digit Driver - Large Board Replacement
..............................................................................19
LED Driver Modules Replacement
..............................................................................................21
LED Power Supply Modules Replacement
...................................................................................24
LED Power Interface Board Replacement
....................................................................................24
Surge Suppressor Replacement
...................................................................................................24
WARRANTY..........................................................................................................28


Electro-Mech Scoreboard Co.
#3 Industrial Parkway Wrightsville, GA 31096
Phone: (800) 445-7846
Fax (478) 864-0212 Email: score@electro-mech.com 1551 Page
3
1551 BASEBALL SCOREBOARD SPECIFICATIONS


GENERAL: This ETL listed scoreboard includes the scoreboard cabinet, mounting hardware, control
console, control cable (sold separately), 10 ft. extension cable, and junction box.

DIMENSIONS: 26 L x 9 H x 6 D (top cabinet: 26 x 4 x 6, bottom cabinet: 26 x 5 x 6)

WEIGHT: 800 lbs (top cabinet: 300 lbs, bottom cabinet: 500 lbs)

SCOREBOARD CONSTRUCTION: The scoreboard consists of two cabinets. The frame is made from
extruded aluminum. The face and back are made from aluminum sheet. The face and masks are
finished with enamel paint. Black is the standard color. The captions are white on a gray
background.

DISPLAY: The 1551 scoreboard displays inning by inning scores from 1 to 10 for the GUEST and
HOME teams, total RUNS and HITS to 99, total ERRORS to 9, BATTER number to 99, BALLS,
STRIKES, OUTS, HIT, and ERROR.

DIGITS AND INDICATORS: Red light emitting diodes mounted on printed circuit boards form the
digits and indicators. The BATTER number, BALL, STRIKE, OUT digits are 18 tall. The
inning scores, total RUNS, HITS, and ERRORS digits, hit (H) indicator, and error (E) indicator
are 15 tall.

POWER REQUIREMENTS: Scoreboard - 120 VAC, 3.7 A, 60 Hz. Control Console - 120 VAC, 0.5
A, 60 Hz

SCOREBOARD ELECTRONICS: 100% solid state fully enclosed.

CONTROL CONSOLE: The control console features a microprocessor, 37 key sealed membrane
keypad, a LCD display, an attached 6 foot power cord, and either a lithium cell battery or two
super capacitors to retain game information. The console housing consists of ABS plastic base
and top pieces with a steel back plate.

CONTROL CABLE: The cable has two 22 AWG stranded copper conductors with semi-rigid PVC
insulation. It also has a braided shield and a foil shield. The polyethylene jacket is rated at 300
volts. The cable is direct burial rated and measures approximately ¼ in diameter. This item is
sold separately from the scoreboard.

JUNCTION BOX AND EXTENSION CABLE: A 4 ¼ x 2 ¼ x 2 junction box with a ¼ stereo jack
mounted on the face plate is attached to the control cable at the point of operation. A 10 ft.
extension cable connects the control console to the junction box.

SCORELINK 300 RF MODEM SYSTEM: This accessory can be used in place of control cable and
junction box for this scoreboard without internal modifications to the scoreboard or the control
console. Refer to the SCORELINK 300 RF MODEM SYSTEM OWNERS HANDBOOK for
more information.

WARRANTY: Five year limited warranty.
Electro-Mech Scoreboard Co.
#3 Industrial Parkway Wrightsville, GA 31096
Phone: (800) 445-7846
Fax (478) 864-0212 Email: score@electro-mech.com 1551 Page
4
SCOREBOARD INSTALLATION
This part of the manual describes the mechanical and electrical installation of the scoreboard.
One of the items listed below must be purchased in order to complete the installation:
Control cable (length dependent upon installation site layout)
ScoreLink 300 RF Modem System
Items not provided by Electro-Mech Scoreboard Company that are necessary for installation:
Three posts
Power cable to connect the scoreboard to the power source
Grounding hardware
A grounded NEMA 5-15R 120 VAC receptacle for the control console at the scorekeepers
table.
Items not provided that are recommended by Electro-Mech Scoreboard Company for installation:
A weatherproof power disconnect at the scoreboard
Electro-Mech Scoreboard Company performs installations in some areas. In other areas, we can help you
contact an independent installer. In areas in which installation service is not available from Electro-Mech
Scoreboard Company, we will make every effort to answer your installation questions. Qualified
personnel should perform the scoreboard installation. Consult national and local codes before installation.
MECHANICAL INSTALLATION

The mechanical installation includes installing the posts and mounting the scoreboard and the optional top
sponsor panels (if purchased) to the posts.
Post Installation
The scoreboard mounts on three posts. Typically installers will use steel pipes or I-beams. In order to
reduce the glare from the sun on the front of the scoreboard, position the posts so that the front of the
scoreboard is angled away from the afternoon sun, if possible. The mounting hardware will accommodate
posts up to 7 inches outer diameter. Sink the posts in reinforced concrete footings. Figure 1 shows the
spacing of the posts for a 1551 scoreboard. The specifications for the posts and concrete footings are
dependent upon the expected local wind and soil conditions, the height of the scoreboard from the ground,
and the local building codes. Electro-Mech Scoreboard Company assumes no responsibility for the
installation of scoreboards by others.
Electro-Mech Scoreboard Co.
#3 Industrial Parkway Wrightsville, GA 31096
Phone: (800) 445-7846
Fax (478) 864-0212 Email: score@electro-mech.com 1551 Page
5
POWER CABLE IN 3/4" CONDUIT
POWER DISCONNECT
#6 BARE COPPER GROUND WIRE
5/8" BRASS TEAR DROP CONNECTOR
5/8" X 8' COPPER
CLAD GROUND ROD
TO CONTROL LOCATION
TO POWER SOURCE
CONTROL CABLE
IN 3/4" CONDUIT
26'
12'
12'
10'
9'
5'

Figure 1 1551 Post Spacing
Figure 2 shows the spacing of the posts for a 1551 scoreboard with an optional top sponsor panel. This
panel is a separate unit that mounts on the same posts as the scoreboard.
POWER CABLE IN 3/4" CONDUIT
POWER DISCONNECT
#6 BARE COPPER GROUND WIRE
5/8" BRASS TEAR DROP CONNECTOR
5/8" X 8' COPPER
CLAD GROUND ROD
TO CONTROL LOCATION
TO POWER SOURCE
CONTROL CABLE
IN 3/4" CONDUIT
26'
12'
12'
10'
9'
5'

Figure 2 1551 with Optional Top Sponsor Panel Post Spacing
Electro-Mech