Cautions - HP E1330A Service Manual

WARNING
USING AUTOTRANSFORMERS. If the mainframe is to be
energized via an autotransformer (for voltage reduction) make
sure the common terminal is connected to neutral (that is, the
grounded side of the main's supply).
CAPACITOR VOLTAGES. Capacitors inside the mainframe may
remain charged even when the mainframe has been
disconnected from its source of supply.
USE PROPER FUSES. For continued protection against fire
hazard, replace the line fuses only with fuses of the same
current rating and type (such as normal blow, time delay, etc.).
Do not use repaired fuses or short-circuited fuseholders.

Cautions

This section contains CAUTIONS which must be followed to avoid damage
to the equipment when performing instrument maintenance or repair.
CAUTION
MAXIMUM VOLTAGE/CURRENT. The maximum voltage that may
be applied between any connector pin and any other point, shield, or
chassis is 5 VPeak.
STATIC ELECTRICITY. Static electricity is a major cause of
component failure. To prevent damage to the electrical components in
the Digital I/O module, observe anti-static techniques whenever
working on a Digital I/O module.
Chapter 1 General Information 11