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Troubleshooting Procedures
QOSMIO F50- QOSMIO F55- DYNABOOK QOSMIO F50 Series Maintenance Manual
52
To determine if the computer’s CRT port is functioning properly, perform the following
procedures. Figure 2-7 outlines the process. Start with Procedure 1 and continue as instructed.
Procedure 1: CRT connection check
Procedure 2: CRT set check
Procedure 1
CRT connection check
The CRT cable may be damaged or the connections may be loose. Use windows application
to check device can work fine or not. Perform Check 1:
Check 1
Make sure CRT cable is firmly plugged into both the CRT set and the CRT port
of the computer. If the cable is connected correctly, go to Check 2.
Check 2
Make sure the CRT port is firmly secured to the system board of the computer. If
the malfunction remains, go to Check 3.
Check 3
The CRT cable may be damaged. Replace with a good cable. If the malfunction
remains, go to Procedure 2.
Procedure 2
CRT set check
The CRT set may be faulty. Perform Check 1:
Check 1
Try using the set for CRT reception. If it does not work, the set may be damaged.
If the set does work, perform Check 2.
Check 2
Try connecting a different CRT to the computer. If the replacement CRT works,
the original set may be damaged. If the replacement set does not work the system
board may be damaged. Replace it with a new one following the instructions in
Chapter 4.
Summary of Contents for Qosmio F50 Series
Page 1: ... Toshiba Personal Computer Qosmio F50 Maintenance Manual TOSHIBA CORPORATION ...
Page 14: ...Chapter 1 Hardware Overview ...
Page 15: ...1 Hardware Overview Qosmio F50 Maintenance Manual 1 ii ...
Page 37: ...Chapter 2 Troubleshooting Procedures ...
Page 38: ......
Page 118: ...3 Tests and Diagnostics 1 Chapter 3 Tests and Diagnostics ...
Page 136: ...3 Tests and Diagnostics 19 2 If the Lid switch test pass it will show below display ...
Page 144: ...3 Tests and Diagnostics 27 If the picture shows as below it means he HDCPKEY function is NG ...
Page 156: ...3 Tests and Diagnostics 39 You can press ESC to exit test after test pass ...
Page 157: ...Chapter 4 Replacement Procedures ...
Page 158: ...4 Replacement Procedures Qosmio F50 Maintenance Manual 4 ii ...
Page 295: ...3 Thai TI Keyboard Figure TI keyboard 4 Korean KO Keyboard Figure KO keyboard ...
Page 297: ...7 Hebrew HB Keyboard Figure HB keyboard 8 Danish DM Keyboard Figure DM keyboard ...
Page 298: ...9 Swiss SW Keyboard Figure SW keyboard 10 Arabic ARE Keyboard Figure ARE keyboard ...
Page 299: ...11 Czech CZ Keyboard Figure CZ keyboard 12 Russian RU Keyboard Figure RU keyboard ...
Page 300: ...13 Portuguese PO Keyboard Figure PO keyboard 14 Slovakian SL Keyboard Figure SL keyboard ...
Page 301: ...15 Italian IT Keyboard Figure IT keyboard 16 French FR Keyboard Figure FR keyboard ...
Page 302: ...17 German GR Keyboard Figure GR keyboard 18 Greek GK Keyboard Figure GK keyboard ...
Page 303: ...19 Canada French CF Keyboard Figure CF keyboard 20 Hungarian HG Keyboard Figure HG keyboard ...
Page 304: ...21 Spanish SP Keyboard Figure SP keyboard 22 Turkish TR Keyboard Figure TR keyboard ...
Page 305: ...3 Turkish F TF F Keyboard Figure TF F keyboard 24 Swedish SD Keyboard Figure SD keyboard ...
Page 306: ...25 Belgian BE Keyboard Figure BE keyboard 26 Yugoslavian YU Keyboard Figure YU keyboard ...
Page 307: ...27 Norwegian NW Keyboard Figure NW keyboard 28 Scandinavian ND Keyboard Figure ND keyboard ...