JRC JMR-92 Series Field Service Manual page 701

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 Remove the Relay terminal block: CQD-2312
Disconnect all cables / wires from Relay terminal block by using a 3 mm width flat head
screwdriver. Then, dismount the Relay terminal block from the DIN rail. For the details of
dismounting, refer to the " Replacing the Relay Terminal Block: CQD-2312".
AC and DC power supplies have been connected to the Relay terminal block. Before
replacement work, be sure to turn OFF the applicable power circuit breaker.
Not following this instruction will cause electric shock and/or malfunction.
When UPS has been connected to the Relay terminal block, be sure to set the
"Bat-Select" rotary switch at "Service" on the UPS controller. Furthermore, be sure to
eject the fuse of the UPS battery.
Not following this instruction will cause electric shock and/or malfunction.
Step 3 Remove the two metal planks.
Remove the screws (M5: total of 4 locations) that fasten the two top and bottom metal planks
and take out both of them. For more information,
LAN Switch Unit: NQA-2443
Step 4 Disconnect the sensor LAN switch unit cables and the UPS power
supply cables.
Disconnect the sensor LAN switch unit cables. If a UPS is installed, remove the fuse of the UPS
first, and then take out the power line together with the terminal block. For more information, refer
to " Replacing the 26 Inch Sensor LAN Switch Unit: NQA-2443."
4.3.8.1
Step 5 Remove the rear panel.
Among the screws (M5: 4 locations) that fasten the rear panel, loosen the upper two screws,
remove the lower two screws, and then take out the rear panel together with the sensor LAN
switch unit.
If a UPS is installed, the weight of the rear panel increases to 10 kg or more.
Be careful not to catch your hands while removing the rear panel.
Chapter 4 Replacement procedure
refer to "4.3.8.1
."
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Replacing the 26 Inch Sensor