Aiwa CSD-A190 EZ Service Manual page 4

PRECAUTION TO REPALCE OPTICAL BLOCK (KSM-213 RDM) -1/1
Body or clothes electrostatic potential could ruin
laser diode in the optical block. Be sure ground
body and workbench, and use care the clothes
do not touch the diode.
1) After the connection, remove solder shown in
the right figure.
Solder
-4-