Antistatic Precautions; Equipment Required; System Board Connectors - Mitsubishi Electric LS Pro Hardware Technical Reference

System unit
Antistatic All electronic components and equipments are sensitive to static electricity. Even
precautions small electrostatic discharges can render components useless or severely shorten
their working life, therefore preventive measures should always be taken.
No work should be carried on any item unless it is in a Special Handling Area (SHA)
as defined in BS CECC 00015:Part 1. In general this involves:
• a common earth point
• an earthed bench or bench mat
• an earthed wrist strap
Equipment The following tools are required to dismantle the system unit.
required
• Philips screwdriver
• Flat-bladed screwdriver
• Nut spanner set
• thin nosed pliers
System board Many of the dismantling/reassembly procedures which follow involve the
connectors disconnection and reconnection of system board plugs and sockets. The following
table gives, for each socket, the connector number which identifies it. This number
is printed on the system board next to each connector.
Connector
Parallel port
Token ring module
Hard disk drive power
Thick Ethernet
System board power
Hard disk drive control
Floppy disk drive
Loudspeaker
2/4 LS PRO HARDWARE TECHNICAL REFERENCE
Label
PL8
PL9 and PL16
PL12
PL13
PL15
PL17
PL18
PL40