Agilent Technologies 89441A Stereo System User Manual


 
If the RF section will not power up
q Check that the power cord is connected to the RF section and to a live power
source.
q Check that the RF section’s rear panel and front panel power switches are on
(
l ).
q Check that the voltage selector switch is set properly.
See ‘’To change the RF section’s line-voltage switch’’ on page 7-11.
q Check that the fuse is good.
See ‘’To change the RF section’s fuse’’ on page 7-13.
q Check that the RF section’s air circulation is not blocked.
Cooling air enters the RF section through the rear panel and exhausts through
both sides. If the RF section’s air circulation is blocked, the RF section powers
down to prevent damage from excessive temperatures. The RF section turns
back on when it cools down.
q Obtain service, if necessary. See ‘’Need Assistance?’’ at the end of
this guide.
Preparing the Analyzer for Use
7-22