Toshiba T4500 User Manual page 51

Program. Refer to Chapter 3, Tests and Diagnostics, for details.
Procedure 4 Connector Check
The Display unit has an LCD module, FL unit (T4500 and T4500C), LED board, Display switch,
and FL inverter board. The FL unit (T4500C) and FL inverter board are connected by two cables.
The LCD module and system board are connected by two signal cables 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.
System
PCB
System
PCB
FL
PJ6/PJ43
PJ11
PJ13 (T4500)
PJ44 (T4600)
PJ17/PJ45
PJ10
Display switch
Figure 2-3 T4500/T4600 Display Connection
FL Unit
PJ6/PJ43
PJ11
PJ13 (T4500C)
PJ44 (T4600C)
PJ17/PJ45
PJ10
Display switch
Figure 2-4 T4500C/T4600C Display Connection
CN2
FL Inverter board
CN1
Status indicator Panel
LCD Unit
CN3
FL Inverter board
CN2
CN1
Status indicator Panel
LCD Unit
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