JRC JMR-92 Series Field Service Manual page 717

4.3.11.3 Replacing the UPS Controller: QUINT-DC-UPS/24DC/20
An AC power supply has fed to the UPS. Before replacement work, be sure
to turn OFF the circuit breaker of the main power line.
Not following this instruction will cause electric shock and/or malfunction.
Before starting UPS replacement work, be sure to remove the fuse of the
UPS battery. Not following this instruction will cause electric shock and/or
malfunction.
Before replacing the UPS controller, be sure to set the "Bat-Select" rotary
switch of the UPS controller at "Service." Not following this instruction will
cause electric shock and/or malfunction.
[Required Tools]
The tools shown in the following table are required for replacement work.
No. Name
1 Flat head
screwdriver
2 Phillips screwdriver
Phillips stubby
3
screwdriver
Before conducting replacement work, turn OFF the circuit breaker for the power supply of the
display unit.
Do not lose the screws as they will be needed again.
An AC power supply has been connected to the UPS. Before starting replacement work, turn
OFF the circuit breaker of the main power supply.
Chapter 4 Replacement procedure
Table Required Tools
Size
2 mm, 4 mm, 6 mm
Size #2
Size #2
4-496
Appearance