Procedure 4 Connector Check; Procedure 5 Replacement Check - Toshiba T3300SL Maintenance Manual

If an error is detected, go to Procedure 4. If an error is not detected, the display is functioning
properly.
Procedure 4 Connector Check
The display unit has an LCD module and FL inverter board. The LCD module and FL inverter
board are connected by three cables. The LCD module and system board are connected by three
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 T3300SL.
LCD module
System board
If any of these cables are not connected, firmly reconnect them and perform Procedures 1 and 2
again. If the problem still exists, perform Procedure 5.
Procedure 5 Replacement Check
The FL inverter board, LCD module, and system board are connected to the display circuits. Any
of these components may be damaged. Refer to Chapter 4, Replacement Procedures, for instruc-
tions on how to disassemble the T3300SL and then perform the following checks.
Check 1 Replace the FL inverter board with a new one and test the display again. If the prob-
lem still exists, perform Check 2.
Check 2 Replace the LCD module with a new one and test the display again. If the problem
still exists, perform Check 3.
Check 3 Replace the display cable with a new one and test the display again. If the problem
still exists, perform Check 4.
Check 4 The system board may be damaged. Replace the system board with a new one and test
the display again.
CN1
FL Inverter board
CN2
CN3
CN1
LCD module
CN2
CN3
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