KL II
Series User Manual 28
Notice
1. The front maintenance tool should be placed in the middle area of a single module, and cannot span
adjacent modules;
2. After removing the module from the screen, use your left hand to hold the module to prevent the front
maintenance tool from running out of power or closing the switch to cause the module to fall.
6.3 Receiving card/Hub board/PSU maintenance
receiving card maintenance
illustration
❶
use the front maintenance tool to remove the
modules on the cabinet;
❷
use a PH2 screwdriver to remove the 2 screws
fixing the receiving card and replace the failed
receiving card.
HUB board maintenance
illustration
❶
use the front maintenance tool to remove the
modules on the cabinet
；
❷
remove the cable and 5V power cord on the
HUB board
；
❸
use a PH2 screwdriver to remove the 4pcs
screws on the fixed HUB board, then it can be
removed and replaced
power supply unit maintenance
illustration
❶
use the front maintenance tool to remove the
modules on the cabinet
；
❷
use the PH2 screwdriver to remove the cable
connecting the power supply and the 4 screws
that fix the power supply, then it can be removed
and replaced
