RIGOL  Chapter 1 Disassemble and Assemble 
1-16  MSO4000/DS4000 Service Guide 
(3)  Remove the main board gently. 
 
 
When assembling the main board, pass the keyboard-main board cables, front 
BNC-main board cable and screen line through the corresponding holes on the 
front metal plate, fasten the main board and then insert the cables to the 
 
 
 
Assemble Procedures 
 
The assemble procedures are the reverse of the disassemble procedures. Check 
whether the cables are correctly connected and whether all the screws are installed 
after each step of assemble.  
 
You are recommended to follow the order and methods introduced above 
when disassembling and assembling the instrument to avoid damage to 
the instrument due to improper operation and to save your time.