Aspire 7720z сервис мануал
Non-Acer products, prototype cards, or modified options can give false errors and invalid system responses. Obtain the failing symptoms in as much detail as possible. Page System Check Procedures, External Diskette Drive Check, Keyboard Or Auxiliary Input Device Check. Aspire 7720z сервис мануал Check Procedures External Diskette Drive Check Do the following to isolate the problem to a controller, driver, or diskette.
If any of these devices do not work, reconnect the cable connector and repeat the failing operation. Memory Aspire 7720z сервис мануал Memory errors might stop system operations, show error messages on the screen, or hang the system. Boot Aspire 7720z сервис мануал the diagnostics diskette and start the doagmpstotics program please refer to main board.
See the following figure: If the voltage is not correct, replace the power adapter. If the voltage is within the range, do the following: Replace the System board.
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Go to Aspire 7720z сервис мануал diagnostic memory in the test items. Page Check The Power Adapter. Check the Power Adapter Unplug the power adapter cable from the computer and measure the output voltage at the plug of the power adapter cable.
Page Check The Battery Pack, Touchpad Check. Check the Battery Pack To check the battery pack, do the following: From Software: Check out the Power Management in Control Panel In Power Meter, confirm that if the parameters shown in the screen for Current Power Source and Total Battery Power Remaining are correct. Power-On Self-Test POST Error Message The POST error message index lists the error message and their possible causes.
The most likely cause is listed first. Error Message List Error Messages Real time clock error Previous boot incomplete - Default configuration used Memory size found by POST differed from CMOS Diskette drive A error Incorrect Drive A type - run SETUP System cache error - Cache disabled CPU ID: DMA Test Failed Software NMI Failed Error Message List No beep Error Messages No beep, power-on indicator turns Aspire 7720z сервис мануал and LCD is blank.
No beep, power-on indicator turns on and LCD is blank. But you can see POST on an external CRT. Page Phoenix Bios Beep Codes. Code Chapter 4 Beeps Check ROM copyright notice Check video configuration against CMOS Initialize PCI bus and devices Initialize all video adapters in system QuietBoot start optional Shadow video BIOS ROM Display BIOS copyright Aspire 7720z сервис мануал Display CPU type and speed Initialize EISA board Test keyboard Set key click if enabled Code Beeps Initialize floppy controller Determine number of ATA drives optional Initialize hard-disk controllers Initialize local-bus hard-disk controllers Jump to UserPatch2 Build MPTABLE for multi-processor boards Install CD ROM for boot Clear huge ES segment register Fixup Multi Processor table Search for option ROMs.
You MUST Aspire 7720z сервис мануал the local FRU list provided by your regional Acer office to order FRU parts for repair and service of customer machines. CRXA VISTA 0FA ODD BEZEL-COMBO ODD BRACKET 17 DVD SUPER MULTI MODULE TRAY IN 6M. LCD COVER ASSY 17 IN. SAMSUNG MTEZ3-CE6 MEMORY MB DDRII HYNIX HYMPS64CP6-Y5 MEMORY 1GB DDRII NANYA NT1GT64U8HB0BN-3C MEMORY 1GB DDRII SAMSUNG MTEZ3-CE6 MEMORY 1GB DDRII HYNIX HYMPS64CP8-Y5 CPU THERMAL MODULE Acer Part No.
Page Index Of Symptom-to-fru Error Message. External display does not work correctly. USB does not work correctly Print problems. Page Intermittent Problems. Intermittent Problems Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors.
Page Disassembling The External Modules, Disassembling The Hdd Module, Disassembling The Odd Module. Disassembling the External Modules Disassembling the HDD Module Turn over the HDD module and remove the three screws fastening the HDD board.
FRU replacement should be considered only when a recurring problem exists. When analyzing an intermittent problem, do the following: Run the advanced diagnostic test for the system board in loop mode at least 10 times. Page Undetermined Problems. Visually check them for damage. If any problems are found, replace the FRU. Remove or disconnect all of the following devices: Non-Acer devices Printer, mouse, and other external devices Battery pack Hard disk drive Page Jumper And Connector Locations.
A write-enabled, diagnostic diskette is required. NOTE: Make sure that the diskette does not have more than one label attached to it. Multiple labels can cause damage to the drive or cause the drive to fail. Page Memory Check, Power System Aspire 7720z сервис мануал.
Jumper and Connector Locations Top View LCD Connector Speaker Left Connector JP34 Speaker Right Connector Internal MIC Connector South Bridge ICH8M Internal Track-Pad Connector Internal Keyboard Connector Mainboard to Button Board Connector Chapter 5 2 3 4 2 3 4 JP36 Mainboard to LED Board Connector Bottom View PJP1 DC-in Power Jack PJP2 Battery Connector JP14 CRT Connector JP15 DVI-D Connector JP25 ODD Connector JP20 Mini Card WLAN Socket JP19 Mini Card TV-Tuner Socket JP17 MDC Connector JP22 CPU Socket JP16 Internal Fan Connector JP19 VGA Board Connector JP18 RJ45 LAN Connector JP For ACER AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code from those given in the FRU list of this printed Service Guide.
Remove the HDD board. Turn over the HDD module and remove the eight screws fastening the HDD bracket. Remove the Disassembling the ODD Module Remove the three screws holding the optical Aspire 7720z сервис мануал. Troubleshooting Use the following procedure as a guide for computer problems. NOTE: The diagnostic tests are intended to test only Acer products.
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