Connect the test setups only when directed and with the power supply turned off. The large
current capacity of the test power supply can cause personal injury. Verity the test setup before
turning the power supply on.
Static electricity and stray voltages can damage the dra modules. Use an antistatic pad on
the work surface and wear a grounded wrist strap when troubleshooting or handling the
To avoid damage to equipment, always set DC switch on test adapter to OFF before turning
power supply on.
Alwavs set ref rt and ref rcu FUNCTION switches to STOW or OFF before setting DC switch on
test adapter to ON. Failure to do so may damage the rt or rcu.
The principles of operation section can be used to fault isolate any unusual problems that may
not be covered in the troubleshooting procedures.