Advertisement
Procedure 4
Connector Check
The Display unit has an LCD module, FL unit, Display switch, and FL inverter board. The FL
unit and FL inverter board are connected by one cable. The FL inverter board and upper
system board are connected by one cable. The LCD module and system board are connected
by one signal cable as shown below. Any of these cables may be disconnected.
Disassemble the display unit and check the following cable connections. Refer to chapter 4.
Replacement Procedures, for more information about how to disassemble the computer.
FL unit
PJ2
System board
PJ3
PJ5
FL unit
PJ2
System board
PJ3
PJ5
Figure 2-4 T4700CT/T4800CT display connection
If any of these cables is not connected, firmly reconnect it and repeat Procedures 1 and 2. If
the problem still exists, perform Procedure 5.
2-38
CN2
CN1
Display switch
Figure 2-3 T4700CS display connection
CN2
CN1
Display switch
FL inverter board
CN1
CN2
CN3
FL inverter board
CN11
CN12
T4700CS, T4700CT, T4800CT
LCD unit
LCD unit
Advertisement
