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 theFAN 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.

 

PBX

 

ATTENTION

 

Contents

 

Static Sensitive

 

Handling

 

Precautions Required

 

FAN power cable

 

PZ-M369

 

(FAN)

 

FAN BOX

 

FAN BOX

FAN power cable

(FAN)

 

 

FAN BOX

Figure 4-23 How to Replace FANU (Fans in Fan Box)

CHAPTER 4

NDA-24300

Page 300

Issue 1

Page 327
Image 327
NEC NDA-24300 manual How to Replace Fanu Fans in Fan Box