GIC ALL AMERICAN SCOREBOARDS MP-2726 Troubleshooting guide

1
a division of general indicator corporation
*
*
general Indicatorcorporation
* P.O. BOX 97
**********
Area PAROECVILLE, LOB/ 429-2111 WI 51954 Outside Ylrconsln 800-356-8146
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OPERATING INSTRUCTIONS AND SERVICE MANUAL
SWIMMING SCOREBOARD
MODEL
MP-2726
PERIOD
EFFECTIVE DECEMBER 6, 1989

TABLE OF CONTENTS
1. General Information
1.1 Description
1.2 Identification
1.3 Damage
1.4 Damage Claim procedure
2. Installation
2.1 General Information
2.2 Inspection
2.3 ~re~~est
2.4 Data Cable Installation
2.5 Electrical Connection
3. Control Console Operation
Scoreboard Power
Control Console Power
Control Console Display
Time Control
Team Scores
Horn Operation
Period Indicators
Lane Placing
4. Maintenance And Troubleshootinq
4.1 Introduction
4.2 Test Equipment
4.3 Troubleshooting
4.4 Troubleshooting Guide
5. Replacement Parts List
5.1 Scoreboard Display Parts
5.2 Controller Assembly Parts
6. Diagrams
6.1 Keyboard Insert (Slipsheet)
6.2 Scoreboard System Layout (C-150171)
6.3 Single Wall Junction Box Wiring (C-12675-2)
6.4 Dual Wall Junction Box Wiring (C-12675-3)
6.5 Controller Plate Wiring and Layout (D-13202)
6.6 Line Filter Wiring Diagram (B-151507)
6.7 Microprocessor 4x7 Lamp Pattern (8 Bit)
6.8 Figuregram Wiring Diagram (C-150481)
6.9 Five Position Driver Bd. Jumper Location (B-151285)
6.10 Triac Placement Diagram
6.11 Installation Drawing (A-150171)

1. GENERAL INFORMATION
1.1 Description
Your All-American Scoreboard has been carefully inspected
and tested before leaving the factory. It is possible,
however, that components may be loosened or forced out of
adjustment in transit.If this occurs, follow troubleshooting
guide (section 4). If equipment then fails to operate,
contact immediately:
ALL-AMERICAN Service Department
EVERBRITE Corporation
P. 0. BOX 97
Pardeeville, WI 53954
Telephone: [phone]
Toll Free: 800-356-8146
Parts being returned for repair are to be sent to:
ALL-AMERICAN Service Department
EVERBRITE Corporation
413 South Main Street
Pardeeville,
WI 53954
1.2 Identification
All-American uses a
4 digit serial number for scoreboard
identification. The serial number tags are located on the back
of the control console and the lower right hand corner on the
face of the scoreboard. When contacting the factory for
assistance it is important that the model and serial numbers
are known.
1.3 Damage
Upon receipt, check for visible damage. If this occurs, or if
damage is found after shipment has been accepted, follow the
damage claim procedure.
1.4 Damage Claim Procedure
An instruction sheet is enclosed advising the Consignee in
case of damage in transit.
If damage is noted at time of delivery, Consignee must obtain
an Inspection of Bad Order from the delivering carrier. In
order to process your claim, this must be properly filled out
with a complete statement of all damage and signed by the
carrier.

If damage is discovered after delivery, you should call the
delivery company. Have them make out a Concealed Damage
report. Fifteen days after delivery are allowed, so this
should be done PROMPTLY or it is impossible to process this
claim.
Advise EVERBRITE Corporation of necessary replacement
parts, or repairs. Consignee will be invoiced and then
should file a claim with the carrier to recover charges.
TO FILE YOUR CLAIM FOLMlW THIS PROCEDURE:
(A) Cost of replacement parts or repair charges are invoiced
to the carrier by the Consignee.
(B) The following documents, plus invoice are forwarded to
the Trucking Company in support of your claim:
(a) Original bill of lading.
(b) Original paid freight bill.
(c) Certified copy of original invoice.
(d) Standard form for Presentation of Loss
and Damage Claim, properly filled out.
2. INSTALLATION
2.1 General Information
Check shipment and if damaged file damage claim.
Shipping papers accompany each scoreboard. Check carefully
to see that you receive the following:
1 ea Swimming Display
1 ea Control Console
1 ea Service Manual
1 ea Mounting Hardware Package
1 ea Junction Box
1 ea Horn
? ft Control Cable (if ordered)
2.2 Inspection
Inspect each unit and tighten all screws, lamps, and fittings
that may have loosened in shipment.
NOTE
i A small length of rubber hose may be used as a lamp extractor. i
1
Simply taper the inside of the hose with a sharp knife to fit (
I the lamp.
I
I
I
PAGE 4

2.3 Pre-Test
Before installing scoreboard, pre-test all functions.
(A) Connect scoreboard to two 20 AMP, 120 Volt AC circuits or
one 30 AMP 120 Volt circuit.
(B) Plug control console into top of scoreboard.
(C) Test operate all functions on scoreboard according to
operating instructions in section
3 of this manual.
(D) When all functions test out, disconnect the power and the
control console before hanging the scoreboard.
2.4 Data Cable Installation
The MP-41 data cable carries only low voltage signals and
therefore can be installed with or without conduit. Consult
section
6 for junction box and scoreboard wiring.
2.5 Electrical Connections
This scoreboard requires one 120 V. 30 Amp AC circuit, or two
120
V. 20 Amp circuits for the exclusive use of the scoreboard.
IMPORTANT
i To protect the MP-2001 Control Console from damagelit is advisable
i
I to disconnect the Control Console and store in a dry secure area
I when it is not in use.
I
I
NOTE
i This equipment complies with the requirements in Part 15 of the FCC
i
I rules for a Class A computing devise. Operation of this equipment in I
I a residential area may cause unacceptable interference to radio and I
I
TV reception requiring the operator to take whatever steps are
I necessary to correct the interference.
I
I
I
I
3. CONTROL CONSOLE OPERATION
3.1 Scoreboard Power
Turn on the branch circuits to scoreboard. The Home and
Guest scores will show "O", and the timer will show
" : 00".
3.2 Console Power
Plug the control console cable into the wall junction box.

Push ON/OFF once to turn the console ON.
Push ON/OFF a second time to shut the console OFF.
The console display should show
CODE when first on.
Enter the two digit code (70) shown in the lower left corner
of the keyboard as in the following example:
Push CODE
- 7 - 0 ENTER
When the proper code has been entered the console display
will show: :00
3.3 Console Display
The
4 digit Liquid Crystal Display shows the race or game time
plus information entered from the keyboard.
3.4 Time Setting and Control
(A) The
UP/DN key determines the timer mode. When the LED
indicator glows the timer will count up. The timer will
count down when the LED indicator is off. The 1/10 Second
figuregram will operate in the up mode.
(B) Push IN/OUT to start/stop the timer
(C) Push RESET to return the timer to the previously set
value. If the timer is in the up mode, the time will reset
to 0 and time up. If the timer is in the down mode, you must
set a time period, and the timer will count down.
(D) To set an
8 minute period; key in the following:
SET
- 8 - 0 - 0 ENTER
(E) Any time up to 99:59 may be preset in a similar manner.
3.5 Team Scores
The Home and Guest Scores can be changed in three different
ways.
(A) To Add
1 to the existing score: Push ADD 1 .
(B) To directly enter or correct a score:
Push home or guest SCORE followed by desired number,
then ENTER
.
Example: Present Home Score is 15. Change the score
from 15 to 23.

Push Home SCORE - 2 - 3 ENTER .
(C) To clear the score:
Push SCORE CLEAR
3.6 Period Indicators
Push PERIOD once to increment the period indicator.
3.7 Placing Indicators
To enter a Home or Guest place, push PLACE followed by the
desired number, as in the following example:
Push PLACE
- 1 ENTER .
To clear the placing information, push: PLACE CLEAR .
3.8 Horn
The horn will blow for
1/2 second each time HORN is pressed.
The horn will blow automatically at the end of each period for
2 seconds.
3.9 Timeout Period
An automatic timeout period of 1 minute is provided for
"Time Outsl9 when the main timer is not running.
push: TIME OUT to start the 1 minute timer. The LED
indicator will glow and the console display will count down
from 1:OO. When 1 minute has elapsed the internal beeper sounds
and the display returns to the current game time.
4. MAINTENANCE AND TROUBLESHOOTING
4.1 Introduction
This section gives maintenance and troubleshooting
information. Included are troubleshooting guides for typical
scoreboard malfunctions. If the cause of a problem cannot be
determined, please contact the customer service department.
4.2 Test Equipment
A simple analog or digital voltmeter will be sufficient for
all user repairable problems. Printed circuit boards
requiring troubleshooting should be returned to the factory.

WARNING
I
1 110 VAC wires are exposed whenever the cover over the controller is
I removed from the scoreboard. Use extreme caution during
I troubleshooting or repair. To avoid possible damage always remove
I power before removing the cover or replacing assemblies.
I
4.3 Troubleshooting
Whenever possible, follow the troubleshooting guides prior to
contacting the customer service department. If a problem not
described in the guides exists, contact the customer service
department immediately. Refer to the diagrams provided for
assistance in troubleshooting scoreboard malfunctions.
4.4 Troubleshooting Guide
(A) Scoreboard Doesn't Light and Console Doesn't Work
(a) Check that the main power switch is turned on.
(b) Replace any defective or blown fuses.
(c) Check the power connections and voltages at the
scoreboard.
(d) Contact the customer service department.
(B) Scoreboard Digits Don't Light But the Console Works
(a) With the main power "off1' remove the cover over the
controller assembly.
(b) Check all connections.
(c) Turn main power "ono'.
(d) If board still doesn't light check the transformer
voltage going to the Reciever PCB assembly (blue
wires)using a voltmeter set on the 12 VAC or higher
scale.
If the voltage is less than 8 VAC contact the
customer service department.
If the voltage is between 8-12 VAC see the
replacement parts list for a Receiver PCB assembly,
and contact the service department.
(C) The Scoreboard Digits Light But The Console Doesn't Work.
(a) Check for continuity between the scoreboard and the
junction box.
(b) If an open circuit is found the problem is either the
cable or a cable connection.

(c) If the continuity test checks good then check the
voltage between the green wire and the white wire in
the junction box using a voltmeter set on the 12 VAC or
higher scale.
If the voltage is 0 V see the Controller parts list
for a transformer assembly.
If the voltage is less than 8 VAC consult the
controller wiring diagram for instructions on long
cable compensation.
If the voltage is between
8 VAC and 12 VAC contact
the customer service department.
(D)
The Scoreboard Digits Light the Console Works but there
Is No Control Of The Scoreboard.
(a)
Check the voltage between the black and red wires in
the junction box with
a voltmeter set on the 3 VDC or
higher scale. (2-3 VDC when working properly)
(b) If the voltage is
0 V contact the service department
for assistance.
(c) If the voltage is correct (2-3 V) check that this
reading also appears at the scoreboard.
(d) If the correct voltage also appears at the scoreboard
see the replacement parts list for a Receiver PCB
Assembly.
(E) The Scoreboard Works But Some Lights Stay On All The Time
(a) With the Main Power OFF, switch the plug from the bad
digit with the plug for a known good digit.
Example: Plug f*C*fin ffDffand ffD**in ffCf*locations.
(b) Turn the power back on. If the same lights remain
lit, the problem is a shorted lamp socket. If the
lights now stay on in a different digit the problem
is the driver board. See the replacement parts list
for the proper replacement driver board.
(F)
The Scoreboard Works But Some Lights Do Not Come On
(a) Check for burned out lamps.
(b) Check for broken wire or bad connection on 12 pin
connector.
(c) See the replacement parts list for the proper
replacement driver board.

5. REPLACEMENT PARTS LIST
5.1 Scoreboard Display Parts
figure 1
DISPLAY ASSEMBLY
PAGE
10

I I
IREPLACEMENT PARTS LIST (MP-2726) Swimming Scoreboard P.N.150171
I
I
I
I
fig.& IMFG PARTI I REF I VENDOR
index INUMBER
I DESCRIPTION I DES I PART #
I
I I I I
I
I
150472 j Display Assembly
850001
1 Lamp, 7C7/125V White
850002
1 Lamp, 7C7/125V Amber
850000
1 Lamp, 7C7/125V Red
705622
1 Lamp Socket, 2 tang cand. base
705800
1 Reflector Ring, 1 1/811 (Qty 210)
705801
1 Reflector Ring, 1 1/211 (Qty 84)
I
150369 1 Controller Assembly
*****(See Figure 2)******
I
i 1-8 i 700102 i Resistor, 2 OHM 10 W. wire wound /
I
I HLM-10-102 I
1 1-9 1 119337 1 Line Filter, Mallory 1 1 20VBl I
150365 i MP-2001 Control Console
180157
1 Transmitter PCB Assembly
I for S.N.1586 and up
151003
1 Transmitter PCB Assembly
I for S.N.1585 and below
151310
1 Keyboard Subassembly
702785
1 Connector, 5 Pin Male CCT
I
I I I
I 1 151204 1 Wall Junction Box, Single
i
I
i
1 151204
i
I 1 702786 1 Connector, 5 Pin Female
I
I J1 I RM12BRD-5s I
I ( 150500 1 Cable, MP-41 Control 1 1 8723
I I I I I I
I
I I I I I
I I
I I I I I I
I
I
150205
1 Wall Junction Box, Dual
702786
1 Connector, 5 Pin Female
150500
1 Cable, MP-41 Control
I

5.2 Scoreboard Controller Assembly Parts
figure
2
CONTROLLER ASSEMBLY
I I
IREPLACEMENT PARTS LIST MP-2726 Controller Assy P.N.150369 I
I
I fig.& IMFG PARTI I REF ( VENDOR
I
DESCRIPTION
I index INUMBER I I DES I PART #
I
I
I
I Controller Assembly
I Receiver PCB Assembly
1 5 Pos. Driver #1, #2, & #3
1 8V/18V Transformer Assembly
I Horn Suppressor Assy.
I Varistor
I Capacitor, .02 MFD 400V.
I Terminal Block, 12 C
I Terminal Block, 6 C
I Ribbon Cable Assy. W/3 F.Con.
!
PAGE 12

6. DIAGRAMS
6.1 Control Console Keyboard and Slipsheet Layout
Console Keyboard
PAGE 13

6.2 Scoreboard System Layout
SYSTEM LAYOUT
PAGE
14

6.3 Single Wall Junction Box Wiring
SINGLE JUNCTION
BOX WIRING
PAGE
15

6.4 Dual Wall Junction Box Wiring
DUAL JUNCTION
BOX WIRING
PAGE 16

6.5 Controller Wiring and Layout
I I
r
-- ...
1
...-.*
PPPPP
i _I___
</
j?ii! -,
CONTROLLER LAYOUT
PAGE 17

I GROUND I
--La
NEUT. , WHT
PHASE I WHT WHT
@
MICROPROCESSOR
' 6' 6'
CONTROLLER
-
! QQ
I
- -
RED^
QQ
I
BLK
Q
PHASE 2 RED Ll NE RED
6'
FILTER
I-
I

6.7 Microprocessor 4x7 Lamp Pattern (8 Bit)
NUMERALS
8 BITS
MICROPROCESSOR
4 X 7 (8 BIT) LAMP PATTERN
PAGE
19

6.8 Figuregram Wiring
8 BIT
0m.x"' nuxo,. ncuac.q*rn ,r,rr"o.
FIGUREGRAM WIRING (Face View)