Acer TravelMate 4050 manual Undetermined Problems, Dimm

Page 69

Undetermined Problems

The diagnostic problems does not identify which adapter or device failed, which installed devices are incorrect, whether a short circuit is suspected, or whether the system is inoperative.

Follow these procedures to isolate the failing FRU (do not isolate non-defective FRU). NOTE: Verify that all attached devices are supported by the computer.

NOTE: Verify that the power supply being used at the time of the failure is operating correctly. (See “Power System Check” on page 53):

1.Power-off the computer.

2.Visually check them for damage. If any problems are found, replace the FRU.

3.Remove or disconnect all of the following devices:

Non-Acer devices

Printer, mouse, and other external devices

Battery pack

Hard disk drive

DIMM

CD-ROM/Diskette drive Module

PC Cards

4.Power-on the computer.

5.Determine if the problem has changed.

6.If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU.

7.If the problem remains, replace the following FRU one at a time. Do not replace a non-defective FRU: Main board

LCD assembly

Chapter 4

62

Image 69
Contents TravelMate Service GuideRevision History Disclaimer CopyrightMessages ConventionsPreface Table of Contents Appendix C Online Support Information Chapter FRU Field Replaceable Unit ListChapter FeaturesAudio Page Montara 855GME System Block DiagramMainboard Placement Top ViewDescription Bottom View Front Open View Outlook ViewFront View Left View HDD Right ViewRear View Bottom View Indicators Icon Function DescriptionODD Lock Key Description Lock KeysEmbedded Numeric Keypad Desired Access Num Lock On Num Lock OffKey Description Windows KeysHot Key Icon Function Description Hot KeysClick on Start, Settings, Control Panel Euro SymbolLaunch Keys Launch Key Default applicationTouchpad Touchpad BasicsFunction Left Button Right Button Tap Hardware Specifications and Configurations Specification1GB 0MB Memory Combinations2MB MK3025GASATA-5 ATA-6 Hlds GCC-4243NIDE/ATAPI QSI SDW-082SRead Lite-On SOSW-852SWrite Recordable Media TypeIRQ7, IRQ5 OhciICH4-M UMA 855GHE/ICH4-M14.0 TD141TGCD2Delta ADP-65DB BG a 65W 3P 15.0Power Management Mechanical Specification Bios Setup Utility Navigating the Bios UtilityHot Key Description Main Parameter Description DeviceSystem Parameter Description Parameter Description MemoryDescription Option AdvancedDMA1, DMA2, DMA3 ASK IR, Fast IRDMA1, DAM3 Bidirectional PS-2May 20, 2003 54009 AM Parameter Description Option SecurityBoot Exit SystemwillrebootBios Flash Utility Machine Disassembly and Replacement Before You Begin General InformationRemoving the Battery Pack Removing the HDD Module Removing HDD Module, ODD and Memory ModuleRemoving the ODD Module Removing the MemoryRemoving the Power Switch Board, Thermal and MDC Removing the Keyboard/LCD ModuleRemoving the Keyboard Removing the LCD module Disassembling the Main Unit Chapter Page Chapter Disassembling the HDD Module System Check Procedures External Diskette Drive CheckExternal CD-ROM/DVD-ROM Drive Check Keyboard or Auxiliary Input Device Check Memory Check Power System CheckCheck the Power Adapter Display Check Touchpad CheckSound Check Beep Code Message Description Insyde MobilePro Bios Post Beep Code and Post MessagesNo Interrupts from Timer Parity Error AT LocationBoot Sector 0 has Changed RebootingIndex of Symptom-to-FRU Error Message Symptom / Error Action in SequenceLCD Dimm PCMCIA-Related SymptomsLCD FPC Peripheral-Related SymptomsDimm Undetermined ProblemsTop View Jumper and Connector LocationsBottom View SW1 Settings Lid switch SW3 SettingsKill SwitchSetting FRU Field Replaceable Unit List Exploded Diagram Chapter Picture Partname Description Part Number PartsPower Cord China Power Cord SwissPower Cord Italian Power Cord DemarkThermal Cover MDC+BLUETOOTH MDC+BLUETOOTH Combo CoverMDC Cover Combo Cover Plate W Plate W/ANTENNA AntennaModule 24X QSI SBW QSI SBW-242C DVD/CDRW Combo DVD/CDRW Combo ModuleModule 24X Hlds GCC Hlds GCC-4243N DVD Dual Module QSI DVD Dual Module QSI SDW-082Keyboard 60.T70V5.005Arabic Keyboard Belgium Keyboard ZippyKeyboard Brazilian Portuguese Keyboard CanadianN150X3-L07 W/WIRELESS Wireless Assy LCD Module 15 Wireless Assy LCD Module 15 Assy LCD Module 15 IN. AUSxga SAMSUNGLTN150P4-L03 W Wireless LCD 14.1 IN. XGA AU Assy LCD Module Assy LCD Module 14.1 IN. XGALCD Panel with Logo LCD InverterAntenna LCD Bezel 14 LCD Bezel -15LCD Wire Cable 15 LCD Wire Cable 15 IN. XGA LCD Wire Cable 14LCD Bracket R 15 Pcmcia SlotThermal Module Mainboard W/ Pcmcia Mainboard W/ Pcmcia SLOT, W/OTouchpad Synaptics Speaker R & LTravelMate4050 G1&G2 Appendix a Model Definition and ConfigurationAppendix B Test Compatible ComponentsModel Vendor Description Microsoft Windows XP / Professional Environment Test1GB DDRI333 HldsAppendix C Online Support Information