Acer Extensa 900 Maintenance Manual
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Field Service 6-3 6.2.4 Password Caution The notebook computer can be password protected to prevent unauthorized use. However, if the password is lost, the notebook must be returned to the Texas Instruments manufacturing facility in Temple, Texas U.S.A. to restore access. This service is not covered by warranty. 6.3 Required Tools and Equipment All Extensa Notebook corrective maintenance procedures can be performed using the following tools: ¨Tweezers ¨Plastic Stick ¨Small flat-blade screwdriver ¨Small Phillips® screwdriver ¨5 mm Nut Driver Caution: All boards, options and peripherals contain components that are sensitive to static electricity. When handling any of these items, protect against static electricity by using wrist grounding straps and grounded working mats. When moving or storing items, use the anti-static bags supplied with the items. 6.4 Notebook FRUs Table 6-1 lists and describes the various FRUs for the Extensa 990 Series. As shown in Figure 6-1, all members of the Extensa 900 Series Notebook Computers contain two major assemblies: ¨ Notebook Assembly - Cover -Display Assembly - Base Assembly ¨ Mobile Productivity Base Assembly
6-4 Field Service
Figure 6-1 Extensa 900 Series Assemblies
6.4.1 Cover-Display Assembly
The Cover -Display Assembly shown in Figure 6-2, contains the LCD screen, DC-AC
Inverter Board, DC-DC Inverter Board, bezel LCD cover and various other components
as listed in Table 6-1.
Mobile Productivity
Base Assembly
Notebook Assemblies
Cover-Display Assembly
Base Assembly
Field Service 6-5 . Figure 6-2 Display FRUs Table 6-1 Top Cover Assembly Field-Replaceable Units (FRUs) FRU Description Assembly/ Disassembly ParagraphTI Part No. PWB INVERTER, DSTN, EXT. 90X 6.5.19 9813635-0001 BEZEL, DISPLAY DSTN 12.1, EXT. 90X 6.5.17 9813636-0001 LCD PANEL, DSTN, 12.1,SHARP, EXT. 90X 6.5.18 9813637-0001 DISPLAY ASSY. DSTN, 12.1, SHARP, EXT. 90X 6.5.7 9813638-0001 CABLE, DISPLAY, DSTN, FJ, EXT. 90X 6.5.7 9813678-0001 PWB INVERTER, TFT, EXT. 90X 6.5.19 9813639-0001 BEZEL, DISPLAY TFT, FJ, EXT. 90X 6.5.17 9813640-0001 LCD PANEL, TFT, 11.3, FJ, EXT. 90X 6.5.18 9813641-0001 DISPLAY ASSY, TFT, 11.3, SHARP, EXT. 90X 6.5.7 9813642-0001 CABLE, INVERTER WIRE 12P, EXT. 900 6.5.19 9813680-0001 CN2 Latch Securing Inverter Boards DC-AC Inverter Board Assembly (large PWB) LCD Assembly LCD Inverter Board (smaller PWB)
6-6 Field Service 6.4.2 System Base Assembly As shown in Figure 6-3, the System Base Assembly houses a variety of field-replaceable subassemblies and components. The various assemblies and reference paragraph numbers containing removal/replacement procedures are listed in Table 6-2. Figure 6-3 Notebook Base Assembly Major FRUs Power Supply Board Battery Connector Cable Assembly Main Board CPU Board Touchpad Assembly TOP Cover VGA Video Board PC Card Module LED BoardBattery Keyboard Assembly Microphone LCD Speaker Speaker Notebook with Keyboard and Battery Removed Heatsink Assembly
Field Service 6-7 Table 6-2 Base Assembly Field-Replaceable Units (FRUs) Base Assembly FRU Description Assembly/ Disassembly ParagraphTI Part No. PWB Assemblies PWB ASSY, MAIN BOARD W/O CPU, EXT. 90X 6.5.15 9813651-0001 PWB ASSY, VGA BOARD, EXT.90 X 6.5.11 9813652-0001 PWB ASSY, LED BOARD, EXT. 90X 6.5.8 9813653-0001 PWB ASSY, CPU BOARD, EXT. 90X 6.5.9 9813654-0001 PWB ASSY, DC-IN BOARD, EXT. 90X 6.5.13 9813655-0001 PWB ASSY, BATTERY BOARD, EXT. 90X 6.5.12 9813656-0001 PWB, POWER SUPPLY, EXT. 90X 6.5.12 9813643-0001 Keyboards KEYBOARD, US, EXT. 90X 6.5.5 9813648-0001 KEYBOARD, UK, EXT. 900 6.5.5 9813648-0002 KEYBOARD, GER, EXT .900 6.5.5 9813648-0003 KEYBOARD, FRA, EXT. 900 6.5.5 9813648-0004 KEYBOARD, SPA, EXT. 900 6.5.5 9813648-0005 KEYBOARD, SWI/GER/FRA, EXT. 900 6.5.5 9813648-0006 KEYBOARD, ITA, EXT. 900 6.5.5 9813648-0007 KEYBOARD, POR, EXT. 900 6.5.5 9813648-0008 KEYBOARDS, SWE, EXT. 900 6.5.5 9813648-0010 KEYBOARD, DEN, EXT. 900 6.5.5 9813648-0012 KEYBOARD, NOR, EXT. 900 6.5.5 9813648-0013 KEYBOARD, FIN, EXT. 900 6.5.5 9813648-0014 KEYBOARD, BEL, EXT. 900 6.5.5 9813648-0015 KEYBOARD, CHI, EXT. 900 6.5.5 9813648-0019 KEYBOARD, KOR, EXT. 900 6.5.5 9813648-0020 Peripherals/Cables HDD, 1.4GB, IBM, EXT.90X 6.5.4 9813645-0001 CABLE, FLEX, HDD, EXT.90X 6.5.4 9813644-0001 TOUCHPAD 6.5.16 9813516-0001 CABLE ASSY., TOUCHPAD, EXT. 90X 6.5.16 9813679-0001
6-8 Field Service FDD, EXT. 90X Ref 9813649-0001 HDD BRACKET ASSY, EXT. 900 6.5.4 9813683-0001 Other Major Assemblies CASE, UPPER, EXT. 90X 6.5.10 9813646-0001 CASE, LOWER, EXT. 90X 6.5.10 9813647-0001 BATTERY, LI-ION, EXT. 90X 6.5.1 9813633-0001 HEAT SINK, MAIN, EXT. 900 6.5.6 9813685-0001 AC ADAPTER, 45W, ADP-45HP, EXT. 6XX Ref 9813497-0004 PCMCIA MODULE, EXT. 900 6.5.14 9813716-0001 Service Manual Ref 9813715-0001 Dummy Battery (case only) EXT. 90X 6.5.1 9813717-0001 Doors, Access Covers, misc COVER MEMORY, EXT. 900 2.3.1 9813663-0001 BRACKET HINGE, EXT. 900 Ref 9813664-0001 SPRING, EXT. SWP, EXT 900 SPG EXT SWP 0.2*2.0*17 Ref 9813665-0001 HINGE, RIGHT, EXT. 900 Ref 9813666-0001 HINGE, LEFT, EXT. 900 Ref 9813667-0001 KNOB BATTERY, EXT. 900 Ref 9813668-0001 COVER, HDD, EXT. 900 Ref 9813669-0001 TUBE FOR LCD ABS 072 EXT. 900 Ref 9813674-0001 BATTERY LOCK, RIGHT, EXT. 900 Ref 9813675-0001 BATTERY LOCK LEFT, EXT. 900 Ref 9813676-0001 DOOR SLIDE PC+FB 082 EXT. 900 Ref 9813677-0001 ASSY CORE UPPER CASE, EXT. 900 Ref 9813681-0001 HEAT PLATE ASSY., EXT. 900 6.5.6 9813682-0001 COVER, KEYBOARD, EXT. 900 6.5.5 9813684-0001 HOLDER ,TOUCHPAD, EXT.900 6.5.16 9813686-0001 SPRING LCD LOCK WPS EXT.900 Ref 9813687-0001 HOLDER DOCK CONNECTOR , EXT. 900 Ref 9813688-0001 RUBBER FOOT CR EXT.900 Ref 9813689-0001 Table 6-2 Base Assembly Field-Replaceable Units (FRUs) Base Assembly FRU Description Assembly/ Disassembly ParagraphTI Part No.
Field Service 6-9 6.4.3 Mobile Productivity Base Assembly The FRU list for the MPB is provided in Table 6-3. The major MPB FRUs are identified in Figure 6-4. TOUCHPAD, GND PLATE, EXT. 900 6.5.16 9813690-0001 CABLE, FLEX, LED BOARD, EXT. 90X 6.5.8 9813691-0001 Table 6-3 Mobile Productivity Base FRUs FRU Description Assembly/ Disassembly ParagraphTI Part No. PWB ASSY, CHARGER BOARD, MPB, EXT. 90X Ref 9813657-0001 CASE, BOTTOM, MPB, EXT. 90X Ref 9813658-0001 PWB ASSY, MAIN BOARD, MPB, EXT. 90X 6.6.7 9813661-0001 PWB ASSY, DC-IN BOARD, MPB, EXT. 90X 6.6.6 9813662-0001 PWB ASSY, BATTERY BOARD, EXT. 900 (same as used in Notebook)Ref 9813656-0001 CASE, UPPER, MPB, EXT. 90X Ref 9813659-0001 CABLE ASSY, DOC, MPB, EXT. 90X Ref 9813660-0001 KNOB HAND LEVER LOCK, MPB, EXT. 900 Ref 9813670-0001 KNOB, MODULE LATCH, MPB, EXT. 900 Ref 9813671-0001 LOCK HAND LEVER, MPB, EXT. 900 Ref 9813672-0001 LATCH MODULE, MPB, EXT. 900 Ref 9813673-0001 CD-ROM DRIVE, EXT. 90X 6.6.1 9813650-0001 Table 6-2 Base Assembly Field-Replaceable Units (FRUs) Base Assembly FRU Description Assembly/ Disassembly ParagraphTI Part No.
6-10 Field Service Figure 6-4 Mobile Productivity Base Major FRUs 6.5 Notebook FRU Replacement Procedures The following paragraphs contain field service-level removal/replacement procedures for the 900 Series Notebook Computers. Most FRU removal/replacement procedures involve connecting and disconnecting cable connectors. The Extensa series uses two types of connectors including: ¨Locking-type connectors - Use a plastic stick to unlock and lock these type of connectors as shown in Figure 6-5. ¨Non-locking connectors MPB with Upper Cover Removed DC-DC Converter Dock Mechanism Main Board Assembly Lever Release Latch Dock Release Lever Upper Cover of Mobile Productivity Base
Field Service 6-11 Figure 6-5 Removing/Installing Cables with Locking-Type Connectors 6.5.1 Removing/Replacing the Notebook Battery Pack Before performing any of the assembly/disassembly procedures, always disconnect the AC adapter from the notebook and remove all battery packs. The procedure for removing and replacing the notebook battery pack is as follows: 1.Turn off the computer and disconnect the AC adapter from the computer. 2.Unlock the battery on each side of the notebook and pull the battery out of the front of the notebook as shown in Figure 6-6. 3.Replacement is essentially the reverse of Steps 1 and 2 (connector side of battery goes up). Unplugging the CableConnecting the Cable
6-12 Field Service Figure 6-6 Notebook Battery Removal/Replacement 6.5.2 Removing/Replacing PCMCIA Options The procedure for removing and replacing the PCMCIA options is as follows: 1.Turn off the computer and remove the battery pack(s) as described in Paragraph 6.5.1. 2.Press the upper card eject button to eject the upper card, lower button controls the lower card and use both buttons for Type III devices. 3.To replace the PCMCIA device, remove any filler cards present and insert the device. Reinstall any external cabling required for the device. Unlock the Battery Pull Battery Out of Unit Unlock Battery Pack Remove Battery from Front of Notebook If Battery Lock comes off, reinstall as shown Flush Slide