2 Troubleshooting
2.17 Video RGB Port
2-28
Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual
2.17 Video RGB Port
Video RGB Port Board or System Board may be the reason of Video RGB Port fault. Either
of these two components may be damaged. To determine if the computer’s Video RGB Port
is functioning properly, perform following procedures. Start with Procedure 1 and continue
with the other procedure as instruction below.
Procedure 1 Windows Application Test
Procedure 2 Connector Check and Replacement Check
Procedure 1 Windows Application Test
Video RGB Port Connector is mounted on Video RGB Port Board. Connect an external
monitor with RGB interface to the computer’s Video RGB port, then power on the computer
into Windows. The computer will automatically detect this external monitor through Video
RGB Port. If the external monitor appears to have a certain problem, go to Procedure 2. If an
error is not located, Video RGB Port is functioning properly.
Procedure 2 Connector Check and Replacement Check
Video RGB Port Board is connected to System Board through FPC Cable. If Video RGB Port
malfunctions, there may be a bad connection between Video RGB Port Board and System
Board, or either might be faulty. Disassemble the computer following the steps described in
Chapter 4 and perform the following checks:
Check 1
Make sure Video RGB Port Board FPC Cable has been firmly connected
to the connector on System Board. Also make sure Video RGB Board is
free of foreign matters.
And if the connector is disconnected, connect it firmly to the system board
and return to Procedure 1. If a foreign matter is found on Video RGB Port
Board, remove it and then return to Procedure 1. If the problem persists,
perform Check 2.
Check 2
Video RGB Port Board may be faulty. Replace it with a new one following
the steps described in Chapter 4. If Video RGB Port Board replaced is still
not functioning properly, perform Check 3.
Check 3
System Board may be defective. Replace System Board with a new one
following steps described in Chapter 4.
Video RGB
Port Board
System Board
CPU
Summary of Contents for Satellite L850D
Page 41: ......
Page 75: ...Chapter 3 Diagnostic Programs ...
Page 78: ......
Page 142: ...Chapter 4 Replacement Procedures 4 1 ...
Page 191: ...6000 1 次 Appendices ...