JRC JMR-92 Series Field Service Manual page 706

Step 1 Remove the JB from the display unit mount kit.
Remove the JB from the display unit mount kit. For more information about the JB removal
procedure, refer to "4.3.8.1 Replacing the 26 Inch Sensor LAN Switch Unit: NQA-2443."
Step 2 Set "Bat-Select" of the UPS controller QUINT-DC-UPS/24DC/20 at
"Service."
Set the "Bat-Select" rotary switch of the UPS controller at "Service."
Bat-Select
L E N
DC 24V
Input AC Output DC
Input Output
+ - + - + -
+ + - - -
L N E
L E N
Step 3 Remove the blade fuse of the UPS battery QUINT-BAT/24DC/3.4AH.
Remove the fuse of the UPS battery. After removing the fuse, leave it for at least 5 min until the
electricity charged in the internal capacitor is discharged.
L E N
Input AC Output DC
L
L
E N
Battery
DC 24V
Input Output
+ - + - + -
+ + - - -
N E
4-485
Bat-Select
rotary switch
UPS
Battery
Fuse
Battery
Chapter 4 Replacement procedure