JRC JMR-92 Series Field Service Manual page 651

After replacing the fans, assemble to the original condition by repeating the same procedure in
the reverse order. Please make sure to tighten all the screws and connect all the cables back in
place.
Step 6 Check operation.
After PSU fan replacement is completed, turn ON the circuit breaker for the main power supply
and the circuit breaker for the power supply of the display unit, and check the operation as follows.
(1) Turn ON the power to the display unit, make sure that screen display is normal, and there
are no abnormalities in operation and processing.
(2) Check that the fan alarm "POWER (Fan)" does not occur.
This completes PSU fan replacement.
Chapter 4 Replacement procedure 4-430