NEC UNIVERGE SV8500 - How to Read Precautions, Diagnostic, and Fault Repair Information

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CHAPTER 1 General
4. HOW TO READ PRECAUTIONS, DIAGNOSTIC, AND FAULT REPAIR INFORMATION
4.1 Precaution about Diagnostic Procedure/Fault Repair Procedure
When performing diagnostic procedures/fault repair procedures, always adhere to the following actions:
(1) When replacing a circuit card with a spare, handle the circuit card using the Field Service Kit.
(a) To protect the circuit card from static electricity, wear a wrist strap before handling the circuit card.
(b) Before extracting the circuit card from its mounting slot, set its MB switch to the UP side (ON).
(2) When holding a circuit card by hand, wear gloves and be careful not to touch mounted parts, gold-plated
terminal, etc., on the circuit card.
The 3M

Model 8012 Portable Field Service Kit, shown in Figure 1-3, is recommended as an effective
countermeasure against static electricity.
Figure 1-3 How to Handle Circuit Cards
Note 1:
A ground wire should be connected to the frame which is not coated by an insulating material.
LOAD
LAN1
LAN2
PWR
ACT
ALM
EMA
TxR
x
LIN
K
TxRx
LINK
SV7000
APEX
TP/S
LOAD
LAN1 LAN2
PWR
ACT
ALM
TxRx LIN
K
TxRx LINK
SV7000
APEX
SP/S
U
P
( )
U
P
( )
U
P
( )
U
P
( )
SP-234
SP
-2
34
SP-234
SP-
2
3
4
SN1234
SN12
34
Connect ground wire to
the frame. Note 1
Place the circuit card on
a conductive sheet.
wrist strap
conductive sheet
wrist strap
Connector
Backboard
contact portion
Set MB key
to UP.
Card puller tab
<How to handle circuit card>
installer