2 Troubleshooting Procedures
Satellite P770/P775 Series Maintenance Manual
26
To determine if the computer’s built-in speakers are functioning properly, perform the
following procedures. Figure 2-8 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: Headphone 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
Headphone 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 Satellite P770
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Страница 15: ...1 Hardware Overview Satellite P770 P775 Series Maintenance Manual CONFIDENTIAL Chapter 1 Hardware Overview ...
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Страница 104: ...Chapter 3 Tests and Diagnostics ...
Страница 115: ...3 Tests and Diagnostics If FAN RPM check is NG it will show as below Satellite P770 P775 Series Maintenance Manual 11 ...
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Страница 121: ...3 Tests and Diagnostics Memory Info Test Satellite P770 P775 Series Maintenance Manual 17 ...
Страница 123: ...3 Tests and Diagnostics UK keyboard Japan keyboard Satellite P770 P775 Series Maintenance Manual 19 ...
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Страница 158: ...4 Replacement Procedures Satellite P770 P775 Series Maintenance Manual CONFIDENTIAL Chapter 4 Replacement Procedures ...
Страница 230: ...Figure B 4 System Board Layout Bottom Satellite P770 P775 Series Maintenance Manual B 6 CONFIDENTIAL ...
Страница 234: ...37 NA 38 NA 39 LCD_INV 40 LCD_INV 41 GND 42 GND C 2 CONFIDENTIAL Satellite P770 P775 Series Maintenance Manual ...
Страница 263: ...Figure TI keyboard 4 Korean KO Keyboard Figure KO keyboard 5 United Kingdom UK Keyboard ...
Страница 264: ...Figure UK keyboard 6 US International UI Keyboard Figure UI keyboard 7 Hebrew HB Keyboard ...
Страница 265: ...Figure HB keyboard 8 Danish DM Keyboard Figure DM keyboard 9 Swiss SW Keyboard ...
Страница 266: ...Figure SW keyboard 10 Arabic ARE Keyboard Figure ARE keyboard 11 Czech CZ Keyboard ...
Страница 267: ...Figure CZ keyboard 12 Russian RU Keyboard Figure RU keyboard 13 Portuguese PO Keyboard ...
Страница 268: ...Figure PO keyboard 14 Slovakian SL Keyboard Figure SL keyboard 15 Italian IT Keyboard ...
Страница 269: ...Figure IT keyboard 16 French FR Keyboard Figure FR keyboard 17 German GR Keyboard ...
Страница 270: ...Figure GR keyboard 18 Greek GK Keyboard Figure GK keyboard 19 Hungarian HG Keyboard ...
Страница 271: ...Figure HG keyboard 20 Spanish SP Keyboard Figure SP keyboard 21 Turkish TR Keyboard ...
Страница 272: ...Figure TR keyboard 22 Turkish F TF F Keyboard Figure TF F keyboard 23 Swedish SD Keyboard ...
Страница 273: ...Figure SD keyboard 24 Belgian BE Keyboard Figure BE keyboard 25 Yugoslavian YU Keyboard ...
Страница 274: ...Figure YU keyboard 26 Norwegian NW Keyboard Figure NW keyboard 27 Scandinavian ND Keyboard ...
Страница 275: ...Figure ND keyboard 28 Canadian Multinational AC Keyboard Figure AC keyboard 29 Canadian Bilingual CB Keyboard ...
Страница 276: ...Figure CB keyboard 30 Romania RO Keyboard Figure RO keyboard 31 Bulgaria BU Keyboard ...
Страница 277: ...Figure BU keyboard 32 Japanese JP Keyboard Figure JP keyboard 32 Latin American LA Keyboard ...
Страница 278: ...Figure LA keyboard ...