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10.11 Sign PC Board P/N
62277
The 62277
PC Board doesn’t normally need to be cal
replaced.
IMPORTANT
In this section, it is assumed that the Sign PC Board P/N 62277 is
correctly configured for this particular sign (see Table 1or 2) and
that the sign lights continuously when m
the normal mode of operation (SW3
INSTRUCTIONS FOR CALIBRATION OF
1.
Turn off main power to the sign.
2.
Open the Power Supply Cover and locate SW3
3. On the Power Supply B
oard, set switch SW3
4. Apply main power to the sign.
Green LED D3 will flash ON/OFF slowly for approximately three
seconds to indicate the beginning of the calibration process. During calibration, D3, will remain
O
FF. At the conclusion of the calibration process, D3 remain
5.
If D3 does not light and remain constant
under WARNING above, replace the power supply board (See sect
5.
Turn off the main power to the sign.
6. Set SW3-
1 to the OFF position.
7. Close the Power Supply cover.
8.
The Power Supply Board is now calibrated to the sign.
10.12
Replacing Sign Power Supply Board
In this section, it is assumed that
the
replacement of the Power Supply Board.
INSTRUCTIONS FOR
REPLACING
Instruction Manual
AGS-LED
858 LED Series
Sizes 1, 2, 3, 4 and 5
17
62277
Calibration
PC Board doesn’t normally need to be cal
ibrated in the field unless an
LED MODULE
WARNING:
In this section, it is assumed that the Sign PC Board P/N 62277 is
correctly configured for this particular sign (see Table 1or 2) and
that the sign lights continuously when m
ain power is applied in
the normal mode of operation (SW3
-
1 = OFF).
INSTRUCTIONS FOR CALIBRATION OF
62277 PC BOARD:
Turn off main power to the sign.
Open the Power Supply Cover and locate SW3
-
1 on the Power Supply Board (See Figure
oard, set switch SW3
-1 to the ON position.
Green LED D3 will flash ON/OFF slowly for approximately three
seconds to indicate the beginning of the calibration process. During calibration, D3, will remain
FF. At the conclusion of the calibration process, D3 remain
constant ON
(see Figure 18)
If D3 does not light and remain constant
, then calibration has failed.
Based on the assumption listed
under WARNING above, replace the power supply board (See sect
ion 10.12)
Turn off the main power to the sign.
1 to the OFF position.
The Power Supply Board is now calibrated to the sign.
Replacing Sign Power Supply Board
& Heat Sink P/N 62277
the
sign has failed and the trouble shooti
ng guide recommends
replacement of the Power Supply Board.
REPLACING
62277 PC BOARD & HEAT SINK:
DOCUMENT 1025
REV. B
LED MODULE
is
In this section, it is assumed that the Sign PC Board P/N 62277 is
correctly configured for this particular sign (see Table 1or 2) and
ain power is applied in
1 = OFF).
1 on the Power Supply Board (See Figure
18)
Green LED D3 will flash ON/OFF slowly for approximately three
seconds to indicate the beginning of the calibration process. During calibration, D3, will remain
(see Figure 18)
.
Based on the assumption listed
ng guide recommends