DOCUMENT 1025
REV. B
Instruction Manual
AGS-LED
858 LED Series
Sizes 1, 2, 3, 4 and 5
WARNING:
IMPORTANT
Power Suupply Board must be
(see Section 10.11).
1.Turn off power to the sign by tuurning off the corresponding Constant Current Regullator (CCR) power. (WARNING: Wait five minutes after sign power is turned off to servicee the sign. This will allow any residual high vooltage stored in Power Supply PCB components to bleed off.)
WARNING
WARNING:
Failure to t urn off power to the sign and wait five minutes could result in severe injury or death.
2.With your multimeter set to DC Volts, verify that the Power Supply Output Voltagee is less than 30- VDC at TP6 (Positive lead) and TP3 (Negative Lead) as indicated in Figure 22. If the Power Supply Output Voltage is greater than
3.Remove input power cabling at CN1, CN2, CN3, CN11, CN17, & CN18 (See Figurre 15).
4.Remove LED Power Supply Caable at CN9 (See Figure 15).
5.Remove the three nuts that secuure the main heat sink to the Power Supply Box.
6.Remove the six screws that fasten the Power Supply Board onto the Power Supply Box.
7.Remove the Power Supply Board Assembly by sliding the attached main heat sink off the mounting studs extending from the side off the Power Supply Box.
8.Slide the new Power Supply Booard onto the mounting studs extending from the sidee of the Power Supply Box.
9.Fasten board to the Power Suppply Box with six mounting screws.
10.Attach the three nuts that securee the heat sink to the studs extending from the side of the Power Supply Box.
11.Connect the LED Power Supplyy cable at CN9.
12.Connect the input power cablinng at CN1, CN2, CN3, CN11, CN17, & CN18.
13.Set the jumpers JP1 & JP2 for the sign style, size, and number of modules as shown in Table 1 or 2. (For locaction, see Figure 18)
18
