![](http://pdfasset.owneriq.net/e/bb/ebbb0037-9847-422c-a43b-1d7b53a2e01c/ebbb0037-9847-422c-a43b-1d7b53a2e01c-bg196.png)
16-8 August 2003 Access Navigator - Release 1.8
Maintenance Procedures
Replace Protected Controller Card
Remove Front Cover
WARNING! THE ACCESS NAVIGATOR CONTAINS CIRCUIT CARDS AND COMPO-
NENTS THAT ARE SUBJECT TO DAMAGE BY ELECTROSTATIC DISCHARGE (ESD).
A
LWAYS FOLLOW THE STATIC-SENSITIVE EQUIPMENT HANDLING PROCEDURES ON
page 6-3 WHEN OPENING EQUIPMENT COVERS AND HANDLING PLUG-IN CIRCUIT CARDS.
1. Put on grounding wrist strap and follow anti-static procedures.
DANGER! BURN HAZARD. CHASSIS, COVER SCREWS, AND CONTROLLER CARD
HEAT SINK MAY BE HOT TO THE TOUCH.
2. Loosen captive thumbscrews on front cover (see Figure 16-1).
Figure 16-1. Location of Front Panel Cover Screws
3. Remove front cover and set aside.
Screw
Screw
Screw
Screw