2 Troubleshooting Procedures
QOSMIO F50- QOSMIO F55- DYNABOOK QOSMIO F50 Series Maintenance Manual
28
To determine if the computer’s built-in speakers are functioning properly, perform the
following procedures. Figure 2-10 outlines the process. First adjust the speaker volume to an
appropriate level. Start with Procedure 1 and continue as instructed.
Procedure 1: Audio source test
Procedure 2: Earphone test
Procedure 3: Connection check
Procedure 4: Replacement check
Procedure 1
Audio source test
Try different audio sources (e.g. an audio CD and digital music file) to determine whether the
fault is in the speaker system or not. If not all sources have sound problem, the problem is in
the source devices. If all have the same problem, continue with Procedure 2.
Procedure 2
Earphone test
Connect a set if earphones or external speakers. If these function correctly, go to Procedure 3.
If they do not function correctly, the system board may be defective or damaged. Replace it
with a new one.
Procedure 3
Connection check
Disassemble the computer following the steps described in Chapter 4,
Replacement
Procedures
and make sure the speaker cable is firmly connected to the audio board. If the
stereo speakers are still not functioning properly, go to Procedure 4.
Procedure 4
Replacement check
If the stereo speakers don't sound properly, the stereo speakers may be defective or damaged.
Replace them with new ones. If the stereo speakers still do not work properly, try replacing in
turn the audio board and system board.
Содержание Qosmio F50 Series
Страница 1: ... Toshiba Personal Computer Qosmio F50 Maintenance Manual TOSHIBA CORPORATION ...
Страница 14: ...Chapter 1 Hardware Overview ...
Страница 15: ...1 Hardware Overview Qosmio F50 Maintenance Manual 1 ii ...
Страница 37: ...Chapter 2 Troubleshooting Procedures ...
Страница 38: ......
Страница 118: ...3 Tests and Diagnostics 1 Chapter 3 Tests and Diagnostics ...
Страница 136: ...3 Tests and Diagnostics 19 2 If the Lid switch test pass it will show below display ...
Страница 139: ...3 Tests and Diagnostics 22 If an error is detected and a test fails the following message displays ...
Страница 144: ...3 Tests and Diagnostics 27 If the picture shows as below it means he HDCPKEY function is NG ...
Страница 156: ...3 Tests and Diagnostics 39 You can press ESC to exit test after test pass ...
Страница 157: ...Chapter 4 Replacement Procedures ...
Страница 158: ...4 Replacement Procedures Qosmio F50 Maintenance Manual 4 ii ...
Страница 244: ...Qosmio F50 Series Maintenance Manual B 5 JP57 MDC conn JPV1 VGA Board conn PJP1 AC Adaptor conn PJP3 Battery conn ...
Страница 248: ...Qosmio F50 Series Maintenance Manual B 9 UV13 B 5 VGA Board DDR3 Top View Figure B 5 VGA Board Layout Top ...
Страница 251: ...B 12 Qosmio F50 Series Maintenance Manual JP6 U4 JP7 U7 UA1 B 5 Audio Board Top View Figure B 3 Audio Board Layout Top ...
Страница 254: ...Qosmio F50 Series Maintenance Manual B 15 U2 B 9 Fingerprint Board Top View Figure B 9 Board Layout Top ...
Страница 257: ...B 18 Qosmio F50 Series Maintenance Manual U3 U2 U1 JP2 B 11 Robson Board Top View Figure B 11 Robson Board Layout Top ...
Страница 258: ...Qosmio F50 Series Maintenance Manual B 19 B 12 Robson Board Bottom View Figure B 12 Robson Board Layout Bottom ...
Страница 295: ...3 Thai TI Keyboard Figure TI keyboard 4 Korean KO Keyboard Figure KO keyboard ...
Страница 296: ...5 United Kingdom UK Keyboard Figure UK keyboard 6 US International UI Keyboard Figure UI keyboard ...
Страница 297: ...7 Hebrew HB Keyboard Figure HB keyboard 8 Danish DM Keyboard Figure DM keyboard ...
Страница 298: ...9 Swiss SW Keyboard Figure SW keyboard 10 Arabic ARE Keyboard Figure ARE keyboard ...
Страница 299: ...11 Czech CZ Keyboard Figure CZ keyboard 12 Russian RU Keyboard Figure RU keyboard ...
Страница 300: ...13 Portuguese PO Keyboard Figure PO keyboard 14 Slovakian SL Keyboard Figure SL keyboard ...
Страница 301: ...15 Italian IT Keyboard Figure IT keyboard 16 French FR Keyboard Figure FR keyboard ...
Страница 302: ...17 German GR Keyboard Figure GR keyboard 18 Greek GK Keyboard Figure GK keyboard ...
Страница 303: ...19 Canada French CF Keyboard Figure CF keyboard 20 Hungarian HG Keyboard Figure HG keyboard ...
Страница 304: ...21 Spanish SP Keyboard Figure SP keyboard 22 Turkish TR Keyboard Figure TR keyboard ...
Страница 305: ...3 Turkish F TF F Keyboard Figure TF F keyboard 24 Swedish SD Keyboard Figure SD keyboard ...
Страница 306: ...25 Belgian BE Keyboard Figure BE keyboard 26 Yugoslavian YU Keyboard Figure YU keyboard ...
Страница 307: ...27 Norwegian NW Keyboard Figure NW keyboard 28 Scandinavian ND Keyboard Figure ND keyboard ...
Страница 308: ...29 Canadian Multinational AC Keyboard Figure AC keyboard 30 Canadian Bilingual CB Keyboard Figure CB keyboard ...
Страница 309: ...31 Japanese JP Keyboard Figure JP keyboard ...