NEC NEAX 2400 IPX, Руководство пользователя

Страница: 177 / 197

CHAPTER 7 NDA-24299
Page 162
Revision 1.0
TROUBLESHOOTING
3-B PM C-level Infinite Loop (Permanent)
Figure 7-4 How to Replace the FCH (PA-FCHA) Card
[H ow to R eplace FC H card]
4
C
0
2
6
A E
M B
No
t U
s
e
d
M B R
FC H (P A -FC H A )
ATTE N TIO N
Contents
Static Sensitive
Handling
Precautions Required
(M N T 3 )
0
1
2
M N T
8
M N T 3
M N T 3
M N T 3
M B
M B
F C H D TI
M B R key operation
C able D isconnection
A n ti-sta tic K it
O P E O P E
F ro n t C ab le
M B key operation
FC H D T I
F C H D T I
1) P rovide the anti-static kit.
2) Turn O N the M N T 3 sw itch. (m ake-busy-request)
3) M ake sure that system m essage (23-W ) "FC H A lternate R outing (S tart)"
is displayed.
4) Turn the M B key upw ard. (m ake-busy)
5) D isconnect the front cable fro m the F CH card with care.
6) E xtract th e F CH card fro m the slot.
7) S et key settings on the new F C H card.
8) Turn O N the M N T 3 sw itch on the new F C H card. (m ake-busy-request)
9) Turn the M B key upw ard on the new F C H card.
10) M ount the new F C H card in the sam e slot.
11) C onnect the disconnected front cable again with care.
12) Turn the M B key dow nw ard.
13) C heck the "O P E " lam p lights green.
14) Turn O FF the M N T 3 sw itch. (m ake idle)
15) M ake sure that system m essage (23-X ) "F C H A lternate R outing (S top)"
is displayed.