Safety and Regulatory Information
Regulatory Information
This symbol on all primary or secondary packaging indicates compliance to China standard GB
18455-2001.
South Korean Certification (KC) mark; includes the marking's identifier code which follows the
format: MSIP-REM-YYY-ZZZZZZZZZZZZZZ or KCC-REM-YYY-ZZZZZZZZZZZZ.
Lithium Battery Disposal
If the battery on the A21 CPU board assembly needs to be disposed of, dispose of it in accordance with your
country's requirements. If required, you may return the battery to Keysight Technologies for disposal. Refer
to
"Contacting Keysight" on page 2-8
For instructions on removing and replacing the battery on the A21 CPU board assembly, refer to
and Replacing the Lithium Battery" on page 7-54.
1-8
for assistance.
PNA Series Microwave Network Analyzers
N5224A and N5225A
Service Guide N5225-90001
"Removing