NEC NDA-24300 manual Preparation for Fanu Replacement Fans on Topu

Models: NDA-24300

1 653
Download 653 pages 50.84 Kb
Page 324
Image 324

UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE

ATTENTION

 

Contents

 

Static Sensitive

Top Cover

Handling

Precautions Required

FANU

NEC

.........

 

..........

.........

.........

 

.......................

.........

................... ..........

 

................... ..........

..................

 

........

........

. . .

. . .

NEAX 2400 IMX

PBX

NEC

NEAX 2400 IMS

PZ-M369

1 Turn PWR SW OFF

OFF

PZ-M369

TH0

TH1

TH2

FAN

 

 

 

ON

 

 

 

OFF

 

 

 

Auto

TALM0 TALM1

FC0 FC1 FC0FC2

3 Disconnect the FAN cable

2 Remove this FAN fuse.

3 Disconnect the cable(s) and

the connector(s) here used for

from this power connector.

 

 

the FAN to be replaced.

 

 

Figure 4-20 Preparation for FANU Replacement (Fans on TOPU)

STEP 5 Remove the four screws fastening the fan to be replaced. Refer to Figure 4-21.

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) onto the PZ-M369.

NDA-24300CHAPTER 4

Page 297

Issue 1

Page 324
Image 324
NEC NDA-24300 manual Preparation for Fanu Replacement Fans on Topu