Data General AViiON 4600 Series, Клиентская документация

Страница: 114 / 266

Expanding and Maintaining Your Computer System
6-10
014–002091
To install or remove jumpers from a device, follow these steps after setting up an ESD
kit:
1. Remove the device from its antistatic bag and place it, component-side up, on a
static-free surface. Do not touch the electronic components on the boards;
handle printedĆcircuit boards by the edges only.
2. Refer to your device-specific technical manual to determine the location of the
jumper(s) you need to change.
3. Use needlenose pliers to carefully pull the proper jumper(s) straight up and off
the pin. Do not pull the plug from side to side, twist it, or otherwise risk bending
or breaking the pins.
Use needlenose pliers to carefully align and start pushing jumpers straight onto
the proper pins; then push the jumper completely onto the pins with your finger,
if necessary. You should not need to force a jumper into place if you install the
proper jumper in the right location.
Figure 6Ć3 shows how to install and remove jumpers from a typical row of pins.
Jumper pins
Jumper plugs
printed-circuit board
Figure 6-3 Removing or Installing Jumper Plugs
Setting Switches
Some boards use DIP switches to determine certain settings. To alter switch settings
on a printedĆcircuit board, follow these steps
after setting up an ESD kit:
1. Remove the device from its antistatic bag and place it, component-side up, on a
static-free surface. Do not touch the electrical components on the board; handle
printedĆcircuit boards by the edges only.
2. Refer to your device-specific technical manual to determine the location and
in/out position of the switches you need to change.