2715 Spectrum Analyzer Service Manual xi
Service Safety Summary
Only qualified personnel should performservice procedures. Read this Service
Safety Summary and the General Safety Summary before performing any service
procedures.
Do Not Service Alone. Do not perform internal serviceor adjustments of this
product unless another personcapable of rendering first aid and resuscitation is
present.
Disconnect Power. Toavoid electric shock, switch off the instrument power, then
disconnect the power cordfrom the mains power.
Use Caution When Servicing the CRT.To avoid electric shock or injury, use
extreme caution when handlingthe CRT. Only qualified personnel familiar with
CRT servicing procedures and precautions should remove or install the CRT.
CRTs retain hazardous voltages for long periods of time afterpower is turned off.
Before attempting any servicing,discharge the CRT by shorting the anode to
chassis ground. When dischargingthe CRT, connect the discharge path to ground
and then the anode. Rough handling may causethe CRT to implode. Do not nick
or scratch the glass orsubject it to undue pressure when removing or installing it.
When handling the CRT,wear safety goggles and heavy gloves for protection.
Use Care When Servicing With Power On. Dangerous voltages or currents may
exist in this product. Disconnectpower, remove battery (if applicable), and
disconnect test leads before removingprotective panels, soldering, or replacing
components.
To avoid electricshock, do not touch exposed connections.
X-Radiation. To avoid x-radiationexposure, do not modify or otherwise alter the
high-voltage circuitry orthe CRT enclosure. X-ray emissions generated within
this product have been sufficientlyshielded.