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NDA-24300 CHAPTER 4
Page 297
Issue 1
UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
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.
ATTENTION
Contents
Static Sensitive
Handling
Precautions Required
PBX
NEC
NEAX 2400 IMS
NEAX 2400 IMX
NEC
Top Cover
Unscrew the top cover by using
a Phillips Screwdriver and
remove it from the TOPU.
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FANU
PZ-M369
3 Disconnect the FAN cable
from this power connector.
FC0 FC1 FC2
PZ-M369
TH2 FAN
TALM1 TALM0
TH1 TH0
ON
OFF
Auto
FC2 FC1 FC0
3 Disconnect the cable(s) and
the connector(s) here used for
the FAN to be replaced.
2 Remove this FAN fuse.
OFF
1 Turn PWR SW OFF