2Troubleshooting Procedures
Satellite P770/P775 Series Maintenance Manual
67
The LED board or system board may be the reason of a LED fault. Either of these two
components may be damaged. To determine if the computer’s LED is functioning properly,
perform the following procedures. Figure 2-28 outlines the process. Start with Procedure 1
and continue with the other procedures as instructed.
Procedure 1: Diagnostic test
Procedure 2: Connector and replacement check
Procedure 1
Diagnostic test
Run the Diagnostic Program, which will automatically execute the LED test. (Refer to
Chapter 3 system configuration check), Tests and Diagnostics for more information on the
program.
If an error is located, go to Procedure 2. If an error is not located, the LED function is
functioning properly.
Procedure 2
Connector and replacement check
The LED board or system board may be disconnected or damaged. Disassemble the
computer following the steps described in Chapter 4,
Replacement Procedures
, and perform
the following checks.
Check 1
Make sure that the LED board FFC is securely slotted into the system board. If
the problem persists, go to Check 2.
Check 2
The LED board may be damaged. Replace it with a new one following the
instructions in Chapter 4. If the problem still exists, perform Check 3.
Check 3
The system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.
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 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 ...