T1 Service Manual                                                                                        7-1 
7 Disassembly and Repair 
 
 
7.1 Tools Required 
To disassemble and replace the parts and components, the following tools may be required: 
  Number 2 Philips screwdriver 
  3 mm hex driver 
  Tweezers 
  Needle nose pliers 
 
 
7.2 Preparations for Disassembling 
Before disassembling the equipment, do the following: 
  Stop patient monitoring, turn off the equipment, and disconnect all the accessories and peripheral devices. 
  Disconnect the DC power source and remove the battery. 
 
CAUTION 
  Before disassembling the equipment, be sure to eliminate any static charges first. When disassembling the 
PCBAs and parts labeled with static-sensitive symbols, make sure you are wearing electrostatic discharge 
protection such as an anti-static wristband or gloves to avoid damaging the equipment. 
  Properly connect and route the cables and wires when reassembling the equipment to avoid short circuits. 
  Select appropriate screws to assemble the equipment. 
  Follow the proper sequence when disassembling the equipment. 
  Disconnect all the cables before disassembling any parts. Be careful not to damage any cables or connectors. 
  Place removed screws and disassembled parts properly, preventing them from being lost or contaminated. 
  Place the screws and parts from the same module together to facilitate reassembling.   
  To reassemble the equipment, first assemble the assemblies, and then the main unit. Carefully route the 
cables.  
  Make sure all O rings and seals are installed during reassembling.