User's Manual

CHAPTER 4 NDA-24300
Page 300
Issue 1
UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
STEP 5 Take off the four screws fastening the fan to be replaced. (Refer to Figure 4-23.)
Note:
The removed screws are used in STEP 7 again. Do not dispose of them when unscrewing the FAN here.
STEP 6 Remove the unscrewed fan from the FANU.
STEP 7 Fasten the new fan with the removed screws.
STEP 8 Connect the new fan cables to the fan connector and the connector(s) disconnected in STEP 4.
STEP 9 Fix the fan fuse (5A) again onto the PZ-M369.
STEP 10 Insert the FANU into the fan box and fasten it with the two screws.
STEP 11 Set the PWR SW on the PZ-M369 to the AUTO position.
Note:
The switch setting of the PWR SW can be ON, depending on the location conditions of the system.
STEP 12 Attach the front cover to the original location.
Figure 4-23 How to Replace FANU (Fans in Fan Box)
FAN BOX
FAN BOX
(FAN)
FAN power cable
FAN BOX
PBX
FAN power cable
(FAN)
PZ-M369
ATTENTION
Contents
Static Sensitive
Handling
Precautions Required