Keysight Technologies 33210A Service Manual page 126

6 Disassembly and Repair
SHOCK HAZARD. Only service-trained personnel who are aware of the
WARNING
hazards involved should remove the instrument covers. Dangerous voltages
may be encountered with the instrument covers removed.
126
Many of the service procedures can now be performed without further
disassembly. Troubleshooting and service procedures that require
power be applied can be performed with the instrument in this state
of disassembly.
Keysight 33210A Service Guide