JRC JCY-1850 Instruction Manual page 27

1.5.2.2 How to operate the Power Supply Unit
1. Starting the power source:
1) Turn on the POWER SWITCH.
2) Then the POWER LED lights up.
2. Stopping the power source:
1) Before turning off the power source, press the CARD STOP SWITCH to stop the
backup of CF CARD.
ATTENTION
Before turning off the power source, be sure that the CARD LED on the Main
Control Board is off. Turning off the POWER SWITCH while the CARD LED is
on may result in the physical damage to the CF CARD. Make sure to stop the
backup by pressing the CARD STOP SWITCH.
2) Press the CARD STOP SWITCH on the Main Control Board.
3) Make sure that the CARD LED on the Main Control Board is off.
4) Turn off the POWER SWITCH.
5) Then all the LEDs are turned off.
3. Blackout Test:
1) Hold down the BLACKOUT TEST SWITCH. (While it is held down, AC power
input is cut off.)
2) While the BLACKOUT TEST SWITCH is held down, check the following items. If
they all happen, the Battery is in normal operation.
The POWER LED of the Power Supply Unit is turned off.
The BATTERY OP. LED of the Power Supply Unit lights up.
The ALARM BUZZER of the Operation Panel Unit sounds.
The ALARM LED and the ERROR CODE LEDs on the Operation Panel Unit
blinks. ( Error Code: 10__ )
The POWER LED on the Operation Panel Unit blinks.
3) Release the BLACKOUT TEST SWITCH, then the following happen.
The POWER LED of the Power Supply Unit lights up.
The BATTERY OP. LED of the Power Supply Unit is turned off.
The ALARM BUZZER of the Operation Panel Unit stops sounding.
The ALARM LED and the ERROR CODE LEDs on the Operation Panel Unit are
turned off.
The POWER LED on the Operation Panel Unit lights up.
13
1. Operation