Static sensitive devices
CMOS devices operate at very high impedance levels for low power levels. Therefore, any
static that builds up on you or your clothing may be sufficient to destroy these devices if they are
not handled properly. Use the following precautions to avoid damaging them:
CAUTION Many CMOS devices are installed in the Model 2000. Handle all semicon-
ductor devices as static sensitive.
• Only transport and handle ICs in containers specially designed to prevent static build-up.
Typically, you receive these parts in anti-static containers made of plastic or foam. Keep
these devices in their original containers until ready for installation.
• Remove the devices from their protective containers only at a properly grounded work
station. Also, ground yourself with a suitable wrist strap.
• Handle the devices only by the body; do not touch the pins.
• Also ground any printed circuit board into which a semiconductor device is to be insert-
ed to the bench or table.
• Only use anti-static type solder sucker.
• Only use grounded tip solder irons.
• Once the device is installed in the PC board, it is normally adequately protected, and you
can handle the boards normally.
Assembly drawings
Use the following assembly drawings to assist you as you disassemble and re-assemble the
Model 2000. Also, refer to these drawings for information about the Keithley part numbers of
most mechanical parts in the unit. The drawings are located at the end of this section of the man-
ual.
• Front Panel Assembly — 2000-040
• Chassis/Transformer Power Module Assembly — 2000-050
• Front Panel/Chassis Assembly — 2000-051
• Chassis Assembly — 2000-052
3-4 Disassembly
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