2 Troubleshooting Procedures
Check 2 Make sure inverter cable is firmly connected to inverter board with two side and
main board. If the connection is loose, reconnect firmly and restart the computer.
If there is still an error, go to Procedure 4.
Procedure 4 Replacement Check
LCD module and main board are connected to display circuits through inverter board and
LVDS cable. Any of these components may be damaged. Refer to Chapter 4, Replacement
Procedures, for instructions on how to disassemble the computer and then perform the
following checks:
Check 1 The LVDS cable or inverter cable may be damaged. Replace it with a new one
following the instructions in Chapter 4, Replacement Procedures. If the problem
still exists, perform Check 2.
Check 2 The inverter board may be damaged. Replace it with a new one following the
instructions in Chapter 4, Replacement Procedures. If the problem still exists,
perform Check 3.
Check 3 The Main board or LCD panel may be damaged. Replace it with a new one
following the instructions in Chapter 4, Replacement Procedures.
Satellite M500/M505/M507 Maintenance Manual [CONFIDENTIAL] 2-33
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