Aspire 7520 / 7520G User's Guide EN
Page 108
... from that interference will not occur in interference to radio and TV reception. English 86 Regulations and safety notices FCC notice This device has been tested and found to comply with FCC regulations. If this equipment.
... from that interference will not occur in interference to radio and TV reception. English 86 Regulations and safety notices FCC notice This device has been tested and found to comply with FCC regulations. If this equipment.
Aspire 7520 / 7520G User's Guide EN
Page 119
... angle Design screen illuminance Reflection class of LCD panel (positive and negative polarity) Image polarity Reference white: Pre-setting of luminance and color temperature @ 6500K (tested under BM7) Pixel fault class 500 mm 0.0° 90.0° Class IV 85.0° • Illuminance level: [250 + (250cosα)] lx where α = 85°...
... angle Design screen illuminance Reflection class of LCD panel (positive and negative polarity) Image polarity Reference white: Pre-setting of luminance and color temperature @ 6500K (tested under BM7) Pixel fault class 500 mm 0.0° 90.0° Class IV 85.0° • Illuminance level: [250 + (250cosα)] lx where α = 85°...
Aspire 7520 / 7520G Service Guide
Page 36
... Intel® 965PM/965GM Express chipset+ICH8M Intel socket 1466pin FCBGA 0.944~1.3V CPU Fan True Value Table CPU Temperature Core 0 86 88 91 95 TEST Condition: 35W@Ambient 35 degree C Fan Speed Core 1 (rpm) 86 3700 88 3450 91 3150 95 2800 Acoustic Level (dBA) 39 36.5 34.5 31 BIOS...
... Intel® 965PM/965GM Express chipset+ICH8M Intel socket 1466pin FCBGA 0.944~1.3V CPU Fan True Value Table CPU Temperature Core 0 86 88 91 95 TEST Condition: 35W@Ambient 35 degree C Fan Speed Core 1 (rpm) 86 3700 88 3450 91 3150 95 2800 Acoustic Level (dBA) 39 36.5 34.5 31 BIOS...
Aspire 7520 / 7520G Service Guide
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... Message" on page 76 "Intermittent Problems" on page 87 "Undetermined Problems" on page 88 Chapter 4 71 No beep or error codes are intended to test only Acer products. Chapter 4 Troubleshooting Use the following table with the verified symptom to determine which page to go to. Symptoms (Verified) Power failure (The power indicator...
... Message" on page 76 "Intermittent Problems" on page 87 "Undetermined Problems" on page 88 Chapter 4 71 No beep or error codes are intended to test only Acer products. Chapter 4 Troubleshooting Use the following table with the verified symptom to determine which page to go to. Symptoms (Verified) Power failure (The power indicator...
Aspire 7520 / 7520G Service Guide
Page 78
... supported by this computer: T Numeric keypad T External keyboard 72 Chapter 4 Follow the instructions in the message window. The following to select the test device: 1. System Check Procedures External Diskette Drive Check Do the following to isolate the problem to a controller, drive, or CD-ROM. A ...write-enabled, diagnostic diskette is passed when the program runs to CD-ROM Test. 3. If an error occurs with the internal diskette drive, reconnect the diskette connector on the System board. Boot from the diagnostics diskette ...
... supported by this computer: T Numeric keypad T External keyboard 72 Chapter 4 Follow the instructions in the message window. The following to select the test device: 1. System Check Procedures External Diskette Drive Check Do the following to isolate the problem to a controller, drive, or CD-ROM. A ...write-enabled, diagnostic diskette is passed when the program runs to CD-ROM Test. 3. If an error occurs with the internal diskette drive, reconnect the diskette connector on the System board. Boot from the diagnostics diskette ...
Aspire 7520 / 7520G Service Guide
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...work, reconnect the cable connector and repeat the failing operation. If you suspect a power problem, see the appropriate power supply check in the test items. 4. Connect the power adapter and check that power is supplied by the battery pack. Remove the battery pack. 2. then check ... program (please refer to the diagnostic memory in the message window. Press F2 in the following power sources: 1. Follow the instructions in the test items. 3. Disconnect the power adapter and install the charged battery pack; A loose connection can cause an error. Go to main board). 2....
...work, reconnect the cable connector and repeat the failing operation. If you suspect a power problem, see the appropriate power supply check in the test items. 4. Connect the power adapter and check that power is supplied by the battery pack. Remove the battery pack. 2. then check ... program (please refer to the diagnostic memory in the message window. Press F2 in the following power sources: 1. Follow the instructions in the test items. 3. Disconnect the power adapter and install the charged battery pack; A loose connection can cause an error. Go to main board). 2....
Aspire 7520 / 7520G Service Guide
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Power-On Self-Test (POST) Error Message The POST error message index lists the error message and their possible causes. NOTE: Most of memory installed. If the symptom is ...
Power-On Self-Test (POST) Error Message The POST error message index lists the error message and their possible causes. NOTE: Most of memory installed. If the symptom is ...
Aspire 7520 / 7520G Service Guide
Page 84
Cache disabled CPU ID: DMA Test Failed Software NMI Failed Fail-Safe Timer NMI Failed Device Address Conflict Allocation Error for device Failing Bits: nnnn Fixed Disk n Invalid System Configuration Data I/O ...
Cache disabled CPU ID: DMA Test Failed Software NMI Failed Fail-Safe Timer NMI Failed Device Address Conflict Allocation Error for device Failing Bits: nnnn Fixed Disk n Invalid System Configuration Data I/O ...
Aspire 7520 / 7520G Service Guide
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... keyboard controller BIOS ROM checksum Initialize cache before memory autosize 8254 timer initialization 8237 DMA controller initialization Reset Programmable Interrupt Controller Test DRAM refresh Test 8742 Keyboard Controller Set ES segment register to 4 GB Enable A20 line Autosize DRAM Initialize POST Memory Manager Clear 215 ...byte of memory bus Enable cache before system BIOS shadow RAM failure on data bits xxxx of high byte of memory bus Test CPU bus-clock frequency Initialize Phoenix Dispatch Manager Warm start shut down Shadow system BIOS ROM Autosize cache Advanced configuration of ...
... keyboard controller BIOS ROM checksum Initialize cache before memory autosize 8254 timer initialization 8237 DMA controller initialization Reset Programmable Interrupt Controller Test DRAM refresh Test 8742 Keyboard Controller Set ES segment register to 4 GB Enable A20 line Autosize DRAM Initialize POST Memory Manager Clear 215 ...byte of memory bus Enable cache before system BIOS shadow RAM failure on data bits xxxx of high byte of memory bus Test CPU bus-clock frequency Initialize Phoenix Dispatch Manager Warm start shut down Shadow system BIOS ROM Autosize cache Advanced configuration of ...
Aspire 7520 / 7520G Service Guide
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...QuietBoot start (optional) Shadow video BIOS ROM Display BIOS copyright notice Display CPU type and speed Initialize EISA board Test keyboard Set key click if enabled Test for unexpected interrupts Initialize POST display service Display prompt "Press F2 to enter SETUP" Disable CPU cache... Test RAM between 512 and 640 KB Test extended memory Test extended memory address lines Jump to User Patch1 Configure advanced cache registers Initialize Multi Processor APIC Enable external and CPU...
...QuietBoot start (optional) Shadow video BIOS ROM Display BIOS copyright notice Display CPU type and speed Initialize EISA board Test keyboard Set key click if enabled Test for unexpected interrupts Initialize POST display service Display prompt "Press F2 to enter SETUP" Disable CPU cache... Test RAM between 512 and 640 KB Test extended memory Test extended memory address lines Jump to User Patch1 Configure advanced cache registers Initialize Multi Processor APIC Enable external and CPU...
Aspire 7520 / 7520G Service Guide
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... Set Huge Segment Initialize Multi Processor Initialize OEM special code Initialize PIC and DMA Initialize Memory type Initialize Memory size Shadow Boot Block System memory test Initialize interrupt vectors Initialize Run Time Clock Initialize video Initialize System Management Mode Output one beep before boot Boot to Mini DOS Clear Huge Segment...
... Set Huge Segment Initialize Multi Processor Initialize OEM special code Initialize PIC and DMA Initialize Memory type Initialize Memory size Shadow Boot Block System memory test Initialize interrupt vectors Initialize Run Time Clock Initialize video Initialize System Management Mode Output one beep before boot Boot to Mini DOS Clear Huge Segment...
Aspire 7520 / 7520G Service Guide
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... Action in Sequence Battery fuel gauge in Sequence Reconnect the keyboard cable. Battery pack System board System hangs intermittently. Onboard Devices Configuration Run printer self-test. Remove battery pack and let it cool for 2 hours. Reconnect hard disk/CD-ROM drives. External display does not work . Reconnect hard disk/CD-ROM...
... Action in Sequence Battery fuel gauge in Sequence Reconnect the keyboard cable. Battery pack System board System hangs intermittently. Onboard Devices Configuration Run printer self-test. Remove battery pack and let it cool for 2 hours. Reconnect hard disk/CD-ROM drives. External display does not work . Reconnect hard disk/CD-ROM...
Aspire 7520 / 7520G Service Guide
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..., do not replace any FRU. 3. When analyzing an intermittent problem, do with a hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors. Rerun the test to verify that have nothing to do the following: 1. Chapter 4 87 Intermittent Problems Intermittent system hang problems can be considered only when a recurring problem exists.... FRU replacement should be caused by a variety of reasons that there are no error is detected, replace the FRU. Run the advanced diagnostic test for the system board in loop mode at least 10 times. 2.
..., do not replace any FRU. 3. When analyzing an intermittent problem, do with a hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors. Rerun the test to verify that have nothing to do the following: 1. Chapter 4 87 Intermittent Problems Intermittent system hang problems can be considered only when a recurring problem exists.... FRU replacement should be caused by a variety of reasons that there are no error is detected, replace the FRU. Run the advanced diagnostic test for the system board in loop mode at least 10 times. 2.