VT6L Maintenance  18. Controller Unit 
 
144  VT series Maintenance Manual    Rev.2 
18.3  Replacing CPU/DPB Board 
Maintenance 
parts 
CPU/DPB Board 
Cross-point screwdriver (No. 2) 
 
 Board 
 
1) 
the power board. 
Reference: 18.2  Replacing Power Board 
 
the CPU/DPB board connectors. 
E: Power connector (IN/OUT ×1 for each) 
F: Cooling fan connector 
G: Regenerative resistor connector 1 
H: Regenerative resistor connector 2 
 
Remember the cable layout for 
reconnecting after replacement. 
AC 
specification
 
 
DC 
specification
 
 
 
the CPU/DPB board. 
Binding head screws: 5-M3×6 
the mounting screws. 
CPU/DPB  board to the