S&C 5800 Series, Руководство по устранению неисправностей

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S&C Instruction Sheet 1041-550
Power Problems
Troubleshooting Overview
Hardware Tools
To correct a problem, you may need one or more of the following tools:
• Multimeter and probes
• 4
⬙
long, #2 Phillips screwdriver
• 4
⬙
long, 1/4
⬙
-blade screwdriver
NOTE : If the suggested troubleshooting steps do not resolve the problem, call S&C at
(800) 621-5546.
AC LINE fuse is blown
Replace the fuse. Swith the fuse holder open, replace the fuse, then push the fuse holder
back in place.
Battery does not supply power when ac power is off
See BAT ON LED (on PS/IO) is OFF on page 9.
Power Supply Control I/O is not providing power
See
BAT ON LED (on PS/IO) is OFF
on page 9.
LCD is blank or you cannot scroll the data
a. Check the LEDs. If all the switch control LEDs, including those on the PS/IO module,
are OFF the switch control is not receiving power. See AC ON LED (on PS/IO) is
OFF on page 7 and BAT LOW LED is OFF on page 9.
b. Check the faceplate circuit module connections. Check connectors J6 and J8. If one
of the connectors is loose, push it into place, then cycle power to the switch control.
To cycle power to the control, remove the AC LINE fuse, then disconnect the red and
black battery leads. Reconnect the battery, then reinsert the AC LINE fuse. If the LCD
still does not work, the LCD module may need to be replaced.
Backlighting on the LCD does not light
Do a lamp test. Hold the faceplate BATTERY TEST/LAMP TEST switch in the LAMP
TEST position. If the backlighting does not come on, but the LEDs blink, the toggle switch
or the LCD module may need to be replaced. If none of the LEDs blink, see All LEDs on
the faceplate are OFF on page 7.
All LEDs on the faceplate are OFF
Check the LCD for data. If the display contains data and you can scroll through it, the proces-
sor is powered and functioning. The problem is with the tamper switch for the door. Make
sure the magnet is present on the top inside of the enclosure door (S&C 5801) or on the
compartment door (S&C 5802/5803). Make sure that the wiring to the magnet is connected.
If the display is blank or you cannot scroll through the data, open the faceplate, remove
the cover from the faceplate circuit board, and check the red CPU Reset LED. The LED is
located on the component side of the board near the
BATTERY TEST switch. If it is on,
the faceplate circuit board is bad; contact S&C.
Check the switch control power (+12 V). Check the AC ON and BAT ON LEDs. If nei-
ther is ON, the battery may be discharged. Press the
BAT ON switch (on the left side of
the PS/IO, near the AC ON LED) to test this condition. Power will be restored for about
one minute if the battery is low and AC power, or sensor power if applicable, is off. If AC
power or sensor power is on, the battery can begin recharging.
LCD Problems