Chapter 1
General Information and Safety
Focus 30/35 Service Manual 1 - 6 P/N 79000035_SM, Version 1.5
Electrostatic Discharge (ESD)
The Focus 30 was constructed in an ESD-protected environment. Most of the semiconductor devices
in the instrument are susceptible to ESD damage.
ESD is generated in many ways.
For example, it can be the result of simple contact, the separation of materials, or the normal motion
of people working with the device. Depending on the magnitude of the charge, device substrates can
be punctured or destroyed by contact with, or by mere proximity to, a static charge. The result can be
immediate destruction, early failure of the device, or degradation of device performance.
To prevent static damage or destruction:
• Take adequate precautions when you handle or service equipment that contains static-sensitive
devices.
• Only attempt to service the circuitry in a static-sensitive device if you are thoroughly familiar
with industry-accepted techniques for handling such devices.
• Always take adequate measures to prevent the buildup of static charge on work surfaces and on
persons handling the Service Manual.
Setting up an ESD workstation
Fig. 1-1 ESD workstation setup
1. Remove the mat grounding cable from the mat pocket.
2. Snap the end of the mat grounding cable onto the common point ground connection on the mat.
3. Connect the other end of the cable to an electrical earth ground, such as a third wire utility
ground, a cold water pipe, or a ground rod.
4. Use the common point ground connection to plug the wrist strap cable into the mat grounding
cable.
Electrical earth ground
connection
Dissipative mat
Wrist strap cable
cable
Pockets
Wrist strap
Mat grounding
Snap-on common point
ground connection
To Next Page
Loading...
Need help?
General
