Manuale d’uso / di manutenzione del prodotto 4252 del fabbricante Acer
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Acer Aspire 4252/4552/4552G Service Guide PRINTED IN T AIW AN Service guide files and updates are availab le on the ACER/CSD web; for more information, please refer to http://csd.
II Revision History Please refer to the table below for the updates ma de on this service guides. Date Chapter Up dates.
III Copyright Copyright © 2010 by Acer Incorporated. All rights rese rved. No part of this pub lication may be reproduce d, transmitted, transcribed, stored in a retrieval system, or translated into .
IV Conventions The following conventi ons are used in this manual: NOTE: This symbol where placed in th e Serv ice Gu id e des ig nates a compo nent that s hould be recycled a ccording to t he local re gulations. SCREEN MESSAGES Denotes actual messages that appear on screen.
V Preface Before using this information and the product it s upports, please read the fo llowing general informa tion. 1. This Service Guide provides you with all techni cal information relating to the BASIC CON FIGURA TION decided for Acer's "glo bal" product offering.
VI.
VII T able of Contents System Specifications 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . .
VIII T able of Contents Removing the Bluetooth Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Removing the HDD Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Removing the LCD Module .
IX T able of Contents Undetermined Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Post Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
X T able of Contents.
Chapter 1 1 System Specifications Features Below is a brief summary of the computer ’s many features: NOTE: Items denoted with an (*) are only available for selected models.
2 Chapter 1 Graphics Aspire 4252 an d 25 5 2 • A TI Radeon™ HD 4250 Graphics with 256 MB of dedicated system memory , supporting Uni fied Video Decoder 2 (UVD2), OpenGL® 2.0, OpenEXR High Dynamic-Range (HDR) technology , Shader Model 4.1, Microsoft® DirectX® 10.
Chapter 1 3 Wireless and networking •W L A N : • Acer InviLink™ Nplify™ 802 .1 1b/g/n Wi-Fi CERTIFIED™ • Acer InviLink™ 802.1 1b/g Wi-Fi CERTIFIED™802.1 1b/g/n Wi-Fi CERTIFIED ™ • Supporting Acer Signa lUp™ wireless technology •W P A N : • Bluet ooth® 3 .
4 Chapter 1 Input and control • Keyboard • 86-/87-/91-key Acer FineTip keyboard with international languag e support • T ouchpad • Multi-gesture touchpad, supporting tw o-finger scroll, pinch,.
Chapter 1 5 • Acer Crystal Eye •M i c r o s o f t ® Silverlight ™ • Skype ™ • Windows Live ™ Essentials — W ave 3.2 (Mail, Photo Gallery , Live ™ Messenger , Movie M aker , Wri te r.
6 Chapter 1 System Block Diagram Keyboard TouchPad LAN BROADCOM PCIE-LAN BCM57780 RJ45 HT3 A-LINK P0 (10/100/1000) Speaker CN Winbond KBC LPC 35mm X 35mm A11 638P (PGA) 35W Azalia SBLINK_CLK NBGPP_CLK.
Chapter 1 7 Your Acer Notebook tour Top View # Icon Item Description 1 Acer Crystal Eye webcam Web camera for video communication. (only for certain models) 2 Display screen Also called Liquid-Cryst al Display (LCD), displays computer output (configuration may vary by model).
8 Chapter 1 Closed Front View Rear view 8 Power indicator Indicates the computer's power status. Battery indicator Indicates the computer's battery status. 1. Charging: The light shows amber when th e battery is charging. 2. Fully charged: The light shows blue wh en in AC mode.
Chapter 1 9 Left View Right View No. Icon Item Descrip tion 1 Kensington lock slot Connects to a Kensington-compatible computer security lock. Note: Wrap the computer security lock cable around an immovable object such as a table or handle of a lo cked drawer .
10 Chapter 1 Base View 5 Emergency eject hole Ejects the optical drive tray when the computer is turne d of f. Note: Insert a paper clip t o the emergency eject hole to eject the optical drive tray when the computer is off. No. Icon Item Description 1 Battery bay Houses the computer's battery pack.
Chapter 1 11 Indicators The computer has several easy-to-read status indicators. Icon Functi on Description Power Indicates the computer's power status. Battery Indicates the computer's battery status. NOTE: 1. Charging: The light shows amber when the battery is charging.
12 Chapter 1 Touchpad Basics The following items show you how to use the T ouchpad: • Move your finger across the T ouchpad (1) to move the cursor . • Press the left (2) and right (3) b uttons loca ted beneath the T ouchpad to perform selection and execution functions.
Chapter 1 13 Using the Keyboard The keyboard has ful l-sized keys an d an embedded numeric keyp ad, sep arate cursor , lock, Windows, function and special keys. Lock Keys and embedded numeric keypad The keyboard h as two lock keys which you can toggle on and off.
14 Chapter 1 Windows Keys The keyboard has two keys that perform Wi ndows-specific functions. Key Description Windows key Pressed alone, this key has the same ef fect as clicking on the Windows S tart button; it launches the S tart menu.
Chapter 1 15 Hot Keys The computer employs hotkeys or key combinations to access most of the computer ’s controls like screen brightness, volume out put and the BIOS utility . T o activate hot keys, press and hold the < Fn> key before pressing the other key in the hotkey combination.
16 Chapter 1 Hardware Specifications and Configurations Processor Processor Specifications (Aspire 4552/5 442G) Processor Specifications (Aspire 4252) Item Spec ificat ion CPU AMD Family 10h Champlai n Processor S1g4 Package Ty p e 3 5 W C P U CPU Package 528-FCBGA package, 21mmx21mm - S1g3 Power 1.
Chapter 1 17 North Bridge Chipset Southbridge Chi pset Item Specification Chipset RS880M Package • Single chip solution in 55nm, 1.1V low power CMOS technology . • 528-FCBGA package, 21mm x21mm. Features • CPU HyperTransport™ Interface • Caspian-series processors.
18 Chapter 1 CPU Fan T rue V alue T able (CPU) Throttling 50% : On= 95°C; OFF=90°C OS shut down at 105°C; H/W shut down at 105°C CPU Fan T rue V alue T able (GPU) Throttling 50% : On= 85°C; OFF=8.
Chapter 1 19 System Board Major Chips BIOS Item Specification Northbridge RS880M Southbridge SB820M VGA AMD Park XT LAN BCM57780 USB 2.0 SB820M Super I/O controller SB820M Bluetooth SB820M Wireless SB820M PCMCIA N/A Audio codec ALC271 Card reader AU6437 Item Sp ecification BIOS vendor Phoenix BIOS V ersion v4.
20 Chapter 1 Memory Combinations Wireless Module 802.1 1b/g/Draft-N LAN Interface 3G Module (No t available with this model) Speaker Slot 1 Slot 2 To t a l M e m o r y 0MB 1024MB 1024MB 0MB 2048MB 204.
Chapter 1 21 Bluetooth Inte rface Hard Disk Drive Interface Item Specification Chipset • Foxconn Bluetooth BCM2046 • Foxconn Bluetooth BCM2070 • Foxconn Bluetooth AR301 1 Radio T echnology FHSS .
22 Chapter 1 Hard Disk Drive Interface (continued) Hard Disk Drive Interface (continued) Item Specificati on Capacity (GB) 320 500 V endor & Model Name Seagate ST9320 310AS HGST HTS545032B9A300 T .
Chapter 1 23 USB Port Audio Subsystem Vid eo I nt e rf a ce VRAM (Discreet models only) Item Specification Chipset SB820M USB compliance level USB 2.0 OHCI/EHCI 4 OHCI and 3 EHCI support 14 U SB 2.
24 Chapter 1 HDMI Port PCMCIA Port (Not available in this model) IO Ports Keyboard Contro ll er I/O Port s Item Specification Compliance level 1.3 compliant Thoroughput Up to 2.
Chapter 1 25 Super-Multi Driv e Module Item Specification V endor & model name HLDS G T32N Panasonic UJ8A0PSNAA-A Performance S pecificat ion With CD Diskette With DVD Diskette With CD Diskette With DVD Diskette T ransfer rate (MB/ sec) Sustained: 3.
26 Chapter 1 Super-Multi Driv e Module (continu ed) Item Specification V endor & model name PLDS DS8A4SH Sony AD7585H Performance S pecificat ion With CD Diskette With DVD Diskette With CD Diskette With DVD Diskette T ransfer rate (MB/ sec) Sustained: - CD-ROM inside 1.
Chapter 1 27 Super-Multi Driv e Module (continu ed) RTC Battery Item Specification V endor & model name T oshiba TSL633F Performance S pecific ation With CD Diskette With DVD Diskette T ransfer rate (MB/sec) Sustained: - CD-ROM/R Rea d (Mo de1) Max 3.
28 Chapter 1 Main Battery LCD Inverter ( Not avai lable in this model ) External Display Supported Resolution Item S pecification 6 Cell V endor Simplo Simplo Simplo Panasonic Sanyo Samsung Sony Part name AS10D71 AS10 D73 AS10D75 AS10D51 As10D31 AS10D51 AS10D41 Battery Ty p e Li-ion Pack capacity 4400 mAh Normal voltage 1 1.
Chapter 1 29 LCD Camera Item S pecification V endor/mod el name AUO B140XW01 V8 Chimei BT140GW01 LG LP140WH1 Samsung L TN140A T01- G03 Screen Diagonal (mm) 14” diagonal mm Display Area (mm) 309.4 x 173.95 mm Display resolution (pixels) 1366 x 768 Pixel Pitch 0.
30 Chapter 1 Card Reader System LED Indicator AC Adapter T rusted Platform M odule (TPM) (N ot available with this model) System Power Manag ement Mechanical off is a condition wher e all power except the R T C battery has been removed from the system.
Chapter 2 31 System Utilities BIOS Setup Utility The BIOS Setup Utility is a hardware configuration prog ram built into y our computer ’s BIOS (Basic Input/ Output System). Y our computer is al ready properly configured and optimi zed, and you do not need to run this utili ty .
32 Chapter 2 Information The Information screen displays a summary of your computer ha rdware inform ation. NOTE: The system information is su bject to diff erent models. Parameter Description CPU T ype This field shows the CP U type and spee d of the system.
Chapter 2 33 Main The Main screen allows th e user to set the system time and date as well as enable and disable bo ot option and recovery . NOTE: The screen above is for your reference only . Actual values may differ . The table below describes the parameters in this screen.
34 Chapter 2 Security The Security screen contains parameters that help sa feguard and protect your co mputer from unautho rized use. The table below describes the parameters in this screen. Settings in boldface are the default and suggested parameter settings.
Chapter 2 35 S Setting a Password Follow these steps as you set the user or the supervisor password: 1. Use the ↑ and ↓ keys to highlight the Set Supe rvisor Password parameter and press the Enter key . The Set Supervisor Password box appears: 2. T ype a password in the “Enter New Passw ord” field.
36 Chapter 2 Changing a Password 1. Use the ↑ and ↓ keys to highlight the Set Supe rvisor Password parameter and press the Enter key . The Set Supervisor Password box appears. 2. T ype the current p assword in the Ent er Current Passw ord field an d press Enter .
Chapter 2 37 Boot This menu allows the user to deci de the order of boot devi ces to load the operatin g system. Bootable devices includes the USB diskette drives, the onboard hard disk d rive and the DVD drive in the module ba y .
38 Chapter 2 Exit The Exit screen allows you to save or discard any changes you made an d qui t the BIOS Utility . The table below describes the parameters in this screen. Parameter Description Exit Saving Changes Exit System Setu p and save your changes to CMOS.
Chapter 2 39 BIOS Flash Utility The BIOS flash memory upd ate is required for th e following conditions: • New versions of system programs • New features or options • Restore a BIOS when it becomes corrupted.
40 Chapter 2 BIOS Flash Utility The BIOS flash memory upd ate is required for th e following conditions: • New versions of system programs • New features or options • Restore a BIOS when it becomes corrupted. DOS Flash Utility Perform the following steps to use the DOS Flash Utility: 1.
Chapter 2 41 Remove HDD/BIOS Password Utilities This section provide s you with d e tails about removing HDD/BIOS password: Remove HDD Password: If you key in the wrong HDD password three times, an error is gen erated. T o reset the HDD p assword, perform the following steps: 1.
42 Chapter 2 Removing BIOS Passwords: If you key in the wrong Supervisor Password three times, System Disabled displ ays on the screen as below . T o reset the BIOS pa ssword, run BIOS_P W .EXE on a second machine as follows: 1. At a command prompt, type bios_pw 14452 0 .
Chapter 2 43 Cleaning BIOS Passwords T o clear the password, perform the following steps: 1. From a D OS prom pt, Execu te clnp wd.exe 2. Press 1 or 2 to clean the desired password shown on the screen. The onscreen message determines whether the func tion is successful or not.
44 Chapter 2 Miscellaneous Utilities Using Boot Sequence Selector Boot Sequence Selector allows the boot order to be changes without accessing the BIOS. T o use Boot Sequence Selector , perform the following steps: 1. Enter into DOS. 2. Execute BS.exe to display the usage screen.
Chapter 2 45 Example 1: Read DMI In formation from Memory Input: dmitools /r Output: Manufacturer (T ype1, Offset04h): Acer Product Name (T ype1, Offset05h): NS41 xxxxx Serial Number (T ype1, Offset07.
46 Chapter 2.
Chapter 3 47 Machine Disassembly and Replacement IMPORT ANT : The outside housing and color may vary from the mass produced model. This chapter contains step-by-s tep procedures on how to disass emble the notebook computer for maintenance and troubleshooting .
48 Chapter 3 Pre-disassembly Instructions Before proceeding with the disassembly procedure, make su re that you do the following: 1. T urn off the power to the system and all peripherals. 2. Unplug the AC adapter and all power and signal cables from the system.
Chapter 3 49 Disassembly Process The disassembly proc ess is divided into the following stages: • External module disassembly • Main unit disassembly • LCD module disassembly The flowcharts provided in the succe eding disassemb l y sections illustrate the entire disassembly seque nce.
50 Chapter 3 External Modules Disassembly Process IMPORT ANT : The outside housing and color may vary from the mass produced model. External Modules Disassembly Flowchart The flowchart below gives you a graphic re presentation on the entire disassembly seque nce and instructs you on the components that need to be removed during servicing.
Chapter 3 51 Removing the Battery Pack 1. T urn the computer over . Slide the batte ry lock in the direction shown. 2. Slide and hold the battery rel ease latch to the release po sition (1), then lift out the battery pack from the main unit (2). NOTE: Please detach the battery and follow local regulations for disposal.
52 Chapter 3 Removing the SD Dummy Card 1. See “Removing the Battery Pack” on page 51. 2. Push the SD dummy card all the way in to eject it . 3. Pull it out from the slot.
Chapter 3 53 Removing the Keyboard 1. See “Removing the Battery Pack” on page 51. 2. T urn the computer over a nd fully open the lid. There are fi ve (5) securing clip s that must be re leased in order to remove the keyboard. 3. Release each clip, working from one side to th e other .
54 Chapter 3 5. Unlock the keyboard FPC and disconnect the cable as shown. Lift the keyboard clear of the chassis. 6. Unlock and disconnect the T ouchpad FPC from the mainboard:.
Chapter 3 55 Removing the ODD Module 1. See “Removing the Battery Pack” on page 51. 2. Remove the one (1) screw securing the ODD module in place. 3. Grasp the OD D by the beze l and slide it out of the chassis. Ste p Size Quantity Screw T ype ODD Bracket Disassembly M2.
56 Chapter 3 4. Remove the ODD bezel by rotating the top edge downward. 5. Remove the two screws securing the ODD bracket. 6. Remove the bracket from the ODD.
Chapter 3 57 Main Unit Disassembly Process Main Unit Disassembly Flowchart Screw List Step Screw Quantity Pa rt No. LCD Module M2.5*6.5-I 4 86.ARE07.001 Lower Cover Disassembly M2.5*6.5-I 17 86.ARE07.001 M2.0*3.0-I 6 86.ARE07.002 USB Board Disassembly M2.
58 Chapter 3 Removing the Lower Cover 1. See “External Modules Disassembly Process” on page 50. 2. Remove the twenty two (22) secu ring screws from the lower cover . Ste p Size Quantity Screw T ype Lower Cover (red callout) M2.0*6.0 16 Battery Bay (green callout) M2.
Chapter 3 59 3. Grasp the ODD bay and the other hand on the other edge of the lower cover . Lift the lower cover from the device. Component Overview Main components are assembled on the mainboard as illustrated in the following graphic.
60 Chapter 3 Removing the DIMM Modules 1. See “Removing the Lower Cover” on page 58. 2. Push out the release latches on both sides of the DIMM socket to release th e DIMM module. 3. Remove the DIMM module. 4. Repeat steps for the seco nd DIMM module if present.
Chapter 3 61 Removing the WLAN Module 1. See “Removing the Lower Cover” on page 58. 2. Disconnect the two (2) cable s from the WLAN board. 3. Remove the one (1) screw .
62 Chapter 3 4. Detach and remove the WLAN board from the WLAN socket. Removing the USB Board 1. See “Removing the Lower Cover” on page 58. 2. Unlock and disconnect the USB FFC from the USB board and mainboard conn ectors.
Chapter 3 63 3. Remove the one (1) screw from the USB board. 4. Lift the USB board upward and away from the chassis. Ste p Size Quantity Screw T ype USB Board Disassembly M2.
64 Chapter 3 Removing the RTC Battery 1. See “Removing the Lower Cover” on page 58. 2. Disconnect the RTC battery cable from the mainboard. 3. Lift the R TC battery away from the mainboard. NOTE: The RT C battery has b een highli ghted with a yellow callout in the previous image.
Chapter 3 65 Removing the Bluetooth Module 1. See “Removing the Lower Cover” on page 58. 2. Disconnect the Bluetooth cable from the mainboard. 3. Gently pry the Bluetooth module u pwa rds and away from the mainboard . 4. Disconnect the Bluetooth cabl e from the Bluetooth module.
66 Chapter 3 Removing the HDD Module 1. See “Removing the USB Board” on page 62. 2. Remove the one (1) screw securing the HDD module to the mainboard. 3. Using the pull-tab, slide the HDD module in the di rection of the arrow to disconnect the interface.
Chapter 3 67 4. Remove HDD from the bay . 5. Remove the four (4) screws from the carrier . 6. Remove the carrier from the HDD. Ste p Size Quantity Screw T ype HDD Carrier Disassembly M2.
68 Chapter 3 Removing the LCD Module 1. See “Removing the WLAN Module” on page 61. 2. Remove the adhesive ground wire from the fan housing. 3. Remove the WLAN antennas from the cable guides.
Chapter 3 69 5. Remove the four (4) screws from the left and right hinges. 6. T ilt the upper cover upwards slightly and separate it from the LCD module.
70 Chapter 3 Removing the Thermal Module 1. See “Removing the LCD Module” on page 68. 2. Disconnect the fan cable as shown. 3. Loosen the six (6) captive screws (in numerical orde r from 1 to 6) and remove the two (2) screws from the fan module. Ste p Size Quantity Screw T ype Thermal Module Disassembly M2.
Chapter 3 71 4. Carefully lift up the thermal module assembly and remove it from the mainboard. IMPORT ANT : Place the thermal module on a cl ean, dry surface when it is not installed.
72 Chapter 3 Removing the CPU 1. See “Removing the Thermal Module ” on page 70. 2. Using a slotte d screw driver , rota te the CPU locking sc rew 90° counter-cl ockwise as show n. 3. Carefully lift the CPU clear of the socket. IMPORT ANT : Place the CPU on a clean, dry surfa ce when it is not installed.
Chapter 3 73 Removing the Mainboard 1. See “Removing the CPU” on page 72. 2. Disconnect the speaker cable from the mainboard conne ctor . 3. Remove the one (1) securing screw from the mainboard. Ste p Size Quantity Screw T ype Mainboard Disassembly M2.
74 Chapter 3 4. Lift the mainboard away th e lower cover . NOTE: The mainboard has be en highlighted w ith a yel low callout in the previous image. Pleas e detach the mainboard and fo llow local regulations for disposal.
Chapter 3 75 LCD Module Disassembly Process LCD Module Disassembly Flowchart Screw List Ste p Screw Quantity Part No. LCD Bezel Disassembly M2.5*5-I 2 8 6.T23V 7.010 LCD Panel Disassembly M2.0*3.0-I 6 86.ARE07.002 LCD Hinge Disassembly M2.5*4.0-I 6 86.
76 Chapter 3 Removing the LCD Bezel 1. See “Removing the LCD Module” on page 68. 2. Remove the two (2) bezel screws from the LCD module. 3. Pry the bezel upwards at the to p of the LCD module releasing it from the latches. Ste p Size Quantity Screw T ype LCD Bezel Disassembly M2.
Chapter 3 77 4. Continue separating the latches along the side s of the bezel towards the hinges. 5. Release the latches at the bottom of the LCD bezel.
78 Chapter 3 Removing the Camera Module 1. See “Removing the LCD Bezel” on page 76. 2. Lift the camera module from the LCD cover . 3. Disconnect the cable as shown .
Chapter 3 79 Removing the LCD Panel 1. See “Removing the LCD Bezel” on page 76. 2. Remove the six (6) securing screws from the LCD panel. 3. Remove the L VDS cable from the cable guides. Ste p Size Quantity Screw T ype LCD Panel Disassembly M2.0*3.
80 Chapter 3 4. Lift the LCD panel clear of the LCD cover as shown. Remove the LCD Hinges 1. See “Removing the LCD Panel” on page 79. 2. Remove the four (4) screws, 2 on each side. Separate the hinges from the LCD panel. Ste p Size Quantity Screw T ype LCD Hinge Disassembly M2*2.
Chapter 3 81 Removing the LVDS Cable 1. See “Removing the LCD Panel” on page 79. 2. Detach the camera cable from the back of the LCD p anel. 3. Remove the yellow tape securing the L VDS cable. 4. S tarting from the top, remove the clear mylar coveri ng and disco nnect the L VDS cable from the LCD panel.
82 Chapter 3 Removing the WLAN Antennas 1. See “Removing the LCD Panel” on page 79. 2. Remove the black and white WLAN antennas from the cable guides.
Chapter 3 83 LCD Module Assembly Process Replacing the WLAN Antennas 1. Place the black antenna cable onto the LCD cove r as shown . Repeat for the white antenna .
84 Chapter 3 Replacing the LVDS Cable 1. T urn the L CD p anel face do wn on a non -abrasive , cle an surface. Ensure the panel face does not get da maged. Connect the L VDS cable to the LCD panel. Place the clear mylar tape over the connector and press firmly .
Chapter 3 85 Replacing the LCD Hinges 1. See “Removing the LCD Panel” on page 79. 2. Replace the four (4) screws, 2 on each side to secure the hinges.
86 Chapter 3 Removing the LCD Panel 1. Place the LCD panel on the LCD cover as shown. 2. Place the L VDS cable into the cable guides..
Chapter 3 87 3. Replace the six (6) securing screws to secure the LCD panel. Ste p Size Quantity Screw T ype LCD Panel Disassembly M2.0*3.0 6.
88 Chapter 3 Replacing the Camera Module 1. Connect the camera cable as shown. NOTE: T ake care not to damage the cable. 2. Place the camera module onto the LCD cover .
Chapter 3 89 Replacing the LCD Bezel 1. Place the bezel hinge covers over the hinges. 2. Ensure the L VDS and WLAN antenna cable b undle are exiting the left hinge as shown.
90 Chapter 3 4. Apply pressure along the bottom of the bezel to attach the latches. 5. Apply pressure along the sides of the bezel to attach the latches.
Chapter 3 91 7. Replace the two (2) bezel screws. Ste p Size Quantity Screw T ype LCD Bezel Disassembly M2.5*2.0 2.
92 Chapter 3 Main Unit Assembly Process Replacing the Mainboard 1. Place the mainboard onto the upper cover as shown. 2. Replace the one (1) screw to secure the mainboard to the upper cover . Ste p Size Quantity Screw T ype Mainboard Disassembly M2.5*5.
Chapter 3 93 3. Connect the speaker cable to the mainboard..
94 Chapter 3 Replacing the CPU IMPORT ANT : The CPU has a Pin1 locator (1) that must be positioned corresponding to the marker (2) on the CPU socket. 1. Place the CPU into the CPU socket as show n, taking note of the Pin1 locator . 2. Using a slotted screw driver , rotate the CPU locking screw 90° clo ckwise as shown to secure it in the package.
Chapter 3 95 Replacing the Thermal Module IMPORT ANT : Apply suitable thermal pads before replacing the thermal module The following thermal materials are approved for use: • Thermal grease comp ound • Eapus PSX-D • Thermal pad • Denka FSL-BS B6 1.
96 Chapter 3 5. Connect the fan cable as shown..
Chapter 3 97 Replacing the LCD Module 1. Place the upper cover onto the LCD module and lower into pla ce. Lower the hinges so they are flush with the hinge plates on the upper cover . 2. Replace the four (4) screws to secure the left and right hinges.
98 Chapter 3 3. Connect and lock the L VDS cable. 4. Place the WLAN antenna bundle into the cable guides aro und the fan module..
Chapter 3 99 5. Place the adhesive ground wire atta ched to the WLAN antenna cable bundle o nto the fan housing . Replacing the Bluetooth Module 1. Connect the Bluetooth cable to the Bluetooth board. 2. Place the connector edge of Bluetooth board into the guides as sho wn and then place the other end down onto the upper cover .
100 Chapter 3 3. Connect the Bluetooth cable to the mainboard connector . Replacing the HDD Module 1. Place the carrier onto the HDD..
Chapter 3 101 2. Replace the four (4) screws to secure the HDD carrier . 3. Place HDD in the HD D bay . 4. Using the pull-tab, slide the HDD module in the directi on of the arrow to connect the interface. 5. Replace the one (1) screw to secure the HDD module to the upper cover .
102 Chapter 3 Ste p Size Quantity Screw T ype HDD Module M2.5*3.0 Ni 2.
Chapter 3 103 Removing the RTC Battery 1. Place the RTC battery onto the mainboard. 2. Connect the RTC battery cable to the mainboard connector ..
104 Chapter 3 Replacing the USB Board 1. Place the USB board onto the chassis. 2. Replace one (1) screw to secure the USB bo ard. 3. Connect and lock the USB FFC to the USB board and mainboard conne ctors. Ste p Size Quantity Screw T ype USB Board Disassembly M2.
Chapter 3 105 Replacing the WLAN Module 1. Insert the WLAN board into the WLAN socket. 2. Replace the one (1) screw . Ste p Size Quantity Screw T ype WLAN Board Disassembly M2.
106 Chapter 3 3. Connect the two (2) antenna cables to the WLAN board as shown. NOTE: Cable placement is as follows: black (Main) to conne ctor J1, white (AUX) to connector J2.
Chapter 3 107 Replacing the DIMM Modules 1. Insert the DIMM module into the DIMM connector . 2. Press down to lock the DIMM module in place. 3. Repeat steps 1 and 2 for the se cond DIMM module if present.
108 Chapter 3 Replacing the Lower Cover 1. Place the lower cove r onto the device. 2. Replace the twenty two (22) screws to secure the lower cover to the device. Ste p Size Quantity Screw T ype Lower Cover (red callout) M2.0*6.0 16 Battery Bay (green callout) M2.
Chapter 3 109 External Module Assembly Process Replacing the ODD Module 1. Place the ODD bracket onto the ODD module and replace the tw o (2) screws to secure it. 2. Press the bezel into the tray , bottom edge fi rst, to secure it to the ODD module. Ste p Size Quantity Screw T ype ODD Bracket Disassembly M2.
11 0 Chapter 3 3. Push the ODD module into the ODD bay until it is flush with the casing. 4. Replace the one (1) screw to secure the module. Replacing the Keyboard 1. Connect and lock the T ouchpad FFC to the mainboard connector . Ste p Size Quantity Screw T ype ODD Bracket Disassembly M2.
Chapter 3 111 2. Place the keyboard face down on the upper cover . Connect the keyboard FPC to the mainboard and secure the locking latch. 3. T urn the keyboard over and slide the front edge into th e upper cover , ensuring th at the four locating tabs are correctly seated.
11 2 Chapter 3 Replacing the SD dummy card 1. Insert the SD dummy card into the slot and push until the card clicks into place and is flush with the casing. Replacing the Battery Pack 1. Insert the battery pack and press down. 2. Slide the battery lock in the direction shown to secure the battery in place.
Chapter 4 11 3 Troubleshooting Common Problems Use the following procedure as a gui de for computer problems. NOTE: The diagnosti c tests are intended to test only Ga teway products. Non-Gateway products, prototype cards, or modified optio ns can give fa lse errors and invalid system responses.
11 4 Chapter 4 Power On Issue If the system doesn’t power on, perform the following acti ons one at a time to correct the problem. Do not replace a non-defective FRUs: Computer Shutsdown Intermittently If the system powers off at intervals, perform the fo llowing actions one at a time to correct the problem.
Chapter 4 11 5 No Display Issue If the Displa y doesn’t work, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: No POST or Video If the POST or video doesn’t display , perform the foll owing actions one at a time to correct the problem.
11 6 Chapter 4 Abnormal Video Display If video displays abnormally , perform the following actions one at a time to correct the problem. 1. Reboot the computer . 2. If permanent vertical/horizon tal lines or dark spots display in the same location, the LCD is faulty and should be replaced.
Chapter 4 11 7 LCD Failure If the LCD fails, perform the following actions one at a time to correct the problem. Do not replace a non- defective FRUs: Built-In Keyboard Failure If the built-in Keyboard fails, perform the foll owing actions one at a ti me to correct the pro blem.
11 8 Chapter 4 Touchpad Failure If the To u c h p a d doesn’t work, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: Internal Speaker Failure If the internal Speakers fail, perform the following actions one at a time to correct the problem.
Chapter 4 11 9 Sound Problems If sound problems are experienced, p erform the following actions one at a time to correct the problem. 1. Reboot the computer . 2. Navigate to Start ´ Control Panel ´ System and Maintenance ´ System ´ Device Manager .
120 Chapter 4 HDD Not Operating Correctly If the HDD does not op erate correctly , perform the following ac tions one at a time to correct the problem. 1. Disconnect all external devices. 2. Run a complete virus scan using up-to-date software to ensure the computer is virus free.
Chapter 4 121 ODD Failure If the ODD fails, perform the following acti ons one at a time to correct the problem. Do not replace a non- defective FRUs: ODD Not Operating Correctly If the ODD exhibits a.
122 Chapter 4 a. Double-click lDE A T A/A T API controllers . If a device displays a down arrow , right-click on the device and click Enable . b. Double-click DVD/C D-RO M d rives . If the device displays a down arrow , right-click on the device and click Enable .
Chapter 4 123 b. Double-click IDE A T A/A T API controllers , then right-click A T A Device 0. c. Click Properties and select the Advanced Settings tab. Ensure that the Enable DMA box is checked and click OK . d. Repeat for the other A T A Devices show n if applicable.
124 Chapter 4 Wireless Function Failure If the WLAN fails, perform th e following actions one at a time to correct th e problem. Do not replace a non- defective FRUs: Thermal Unit Failure If the Thermal Unit fails, perform the follo wing actions one at a time to correct the problem.
Chapter 4 125 External Mouse Failure If an external Mouse fails, perform the following actions one at a time to correc t the problem. 1. T ry an alternative mouse. 2. If the mouse uses a wireless connection, insert new batteries a nd confirm there is a good connection.
126 Chapter 4 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, electros tatic discharge, or software errors. FRU repla cement should be considered only when a recurring prob lem exists.
Chapter 4 127 Post Codes These tables describe the POST code s and descriptions durin g the POST . . Code POST Routine Description 02h V erify Real Mode 03h Disable Non-Maskable Interrupt (NMI) 04h Ge.
128 Chapter 4 3Ch Advanced configuration of chipset registers 3Dh Load alternate registers with CMOS values 42h Initialize interrupt vectors 45h POST device initialization 46h 2-1-2-3 Che ck RO M copy.
Chapter 4 129 85h Initial ize PC-compa tible PnP ISA devices 86h Re-initialize onboard I/O ports. 87h Configure Motheboard Configurable Devices (optional) 88h Initialize BIOS Data Area 89h Enable Non-.
130 Chapter 4 BEh Cle ar screen (option al) BFh Check virus and backup reminders C0h T ry to boot with INT 19 C1h Initial ize POST Error Manager (PEM) C2h Initial ize error logging C3h Initialize erro.
Chapter 5 131 Jumper and Connector Locations Top View Item Description Item Description 1 SW1 / Power Button 6 CN22 / BT V2.1 wire conn. 2 CN2 / K/B FFC conn.
132 Chapter 5 Bottom View Item Description Item Description 1 PJ2 Battery Conn 15 CN2 1 / LINE-OUT 2 CN5 / LCD wire Conn 16 CN4 / INT Mic conn 3 PJ1/ PWR Jack conn. 17 U25 / Card reader IC 4 U16 / N.B. 18 CN1 1, CN15 / Memory DIMM 5 CN7 / F AN Conn 19 CN19 / Int.
Chapter 5 133 Clearing Password Check and BIOS Recovery This section provide you the standard operating procedur es of clearing password and BIOS recovery for Acer Aspire 4252/4552/4552G . Gateway provides one Hard ware Open Ga p on the main board for clearing password check, and one Hotkey for enabling BIOS Recovery .
134 Chapter 5 BIOS Recovery by Crisis Disk BIOS Recovery Boot Block: BIOS Recovery Boot Block is a spec ial block of BIOS. It is used to boot up the system with minimum BIOS initialization. Users can enable this feature to restore the BIOS firmware to a successful one once the previous BIOS flashing process failed.
Chapter 6 135 FRU (Field Replaceable Unit) List This chapter gives you the FRU (Field Replaceable Unit) list ing in global configurations of Acer Aspire 4252/4552/4552G . Refer to this chapter whenever ordering fo r parts to re pair or for RMA (Return Merchandise Authorization).
136 Chapter 6 Acer Aspire 4252/4552/4552G Exploded Diagrams LCD Assembly No. Description Acer P/N 1 Left hinge 33.R6 Z07.004 2 L VDS cable assy 50.R6Z07.004 3 Camera AM.21400.067 4 LCD bezel 60.R6 Z07.010 5 Right hinge 33.R6Z07.005 6 LCD Panel LK.14008.
Chapter 6 137 Chassis Assembly No. Description Acer P/N No. Description Acer P/N 1 Bluetooth modu le BH.21 100.006 7 T op cover 60.R6Z07.001 2 Mainboard MB.R6306.001 8 O DD module KU.00801.040 3 Dummy card 42.PSR07.002 9 HDD KH.16001.045 4 Thermal module 60.
138 Chapter 6 Acer Aspire 4252/4552/4552G FRU List Category Description P/N ADAPTER Adapter DEL T A 65W 19V 1.7x5.5x1 1 Y ellow ADP-65VH BA, L V5, Low profile LED LF AP .06501.033 Adapter LITE-ON 65W 19V 1.7x5.5x1 1 Y ellow P A-1650-69A W , L V5, Low profile LED LF AP .
Chapter 6 139 CABLE POWER CORD UK 3PIN 27.A03V7.004 PWR CORD V943B30001218008 DANISH 3P 27.A03V7.006 POWER CORD US 3PIN ROHS 27.T AXV7.001 PWR CORD(ISR)1.8M 3PBLK FZ0I0008-038 27.T A TV7.005 PWR CORD V50CB3T3012180QD TW-1 10V ,3P 27.A99V7.002 POWER CORD(SWI)1.
140 Chapter 6 CPU/PROCESSOR CPU AMD AthlonII P340 PGA 2.2G 1M 25W KC.AP002.340 CPU AMD - V140 PGA 2.3G 512K 25W KC.V00 02.140 CPU AMD PhenomII N850 PGA 2.2G 1.5M 35W KC.PN002.850 CPU AMD PhenomII N950 PGA 2.1G 2M 35W KC.PN002.950 CPU AMD PhenomII P840 PGA 1.
Chapter 6 141 HDD WD 2.5" 5400rpm 160GB WD1600BEVT -22A23T0 , WD, ML320S SA T A 8MB LF F/W:01.01A01 KH.16008.027 HDD TOSHIBA 2.5" 5400rpm 250GB MK2565GSX, Capricorn BS, 320G/P SA T A 8MB LF F/W:GJ001J KH.25004.005 HDD HGST 2.5" 5400rpm 250GB HTS545 025B9A300 Panther B SA T A LF F/W:C60F Disk imbalance criteria = 0.
142 Chapter 6 Keyboard ACER AC4T_A10B AC4T 87KS Black Nordic Te x t u r e KB.I140A.218 Keyboard ACER AC4T_A10B AC4T 87KS Black Norwegian Te x t u r e KB.I140A.219 Keyboard ACER AC4T_A10B AC4T 87KS Black Portuguese Te x t u r e KB.I140A.220 Keyboard ACER AC4T_A10B AC4T 86KS Black Russian Te x t u r e KB.
Chapter 6 143 LCD BRACKET W/ HINGE - L 33.R6Z07.004 LCD BRACKET W/ HINGE - R 33.R6Z07.005 LCD CABLE 50.R6Z07.004 Chicony 1.3M CH9665SN (CNF9157) AM.21400.067 Suyin 1.3M SY9665SN AM.21400.068 Liteon 1.3M L T9665AL (09P2SF1 19) AM.21400.069 LCD LCD MODULE 14" LED GLARE IMR W/CCD, ANT ENNA*2 - BROWN 6M.
144 Chapter 6 LCD BRACKET W/ HINGE - R 33.R6Z07.005 LCD CABLE 50.R6Z07.004 Chicony 1.3M CH9665SN (CNF9157) AM.21400.067 Suyin 1.3M SY9665SN AM.21400.068 Liteon 1.3M L T9665AL (09P2SF1 19) AM.21400.069 MAINBOARD MAIN BOARD DIS AMD P ARK, W/CARD READER,MIC MB.
Chapter 6 145 Screw List CA TEGORY PA R T N A M E ACERP ARTNO. SCREW SCREW M2-0.4*2-I(BNI)(NYLOK)IRON 86.W4107.002 SCREW M2.0*3.95-I(BNI)(NYLOK) 86.R6Z07.002 SCREW M2.0*3.0-I(BKAG)(NYLOK IRON 86.ARE07.002 SCREW M3*0.5+3.5I 86.N1407.007 SCREW M2.5*4.0-I(NI)(NYLOK) 86.
Appendix A 146 Model Definition and Configuration Aspire 4252 Model RO Country Acer Part No Description AS4252- 141G32Mnkk PA A C L A - Sp a i n LX.R64 08.002 AS4252-141G32Mnkk EM W7ST32EMASEA3 MC UMACkk_3 1*1G/320/6L2.2 /2R/ CB_bgn_1.3C_HG_ ES51 AS4252- 141G32Mnkk PA A C L A - Sp a i n LX.
147 Appendix A Model Country Acer Part No BOM Name CPU VGA Chip VRAM 1 AS4252- 141G32Mnkk ACLA- Sp a i n LX.R6408. 002 AS4252_U MACkk_3 AMDV140 UMA N AS4252- 141G32Mnkk ACLA- Sp a i n LX.R6408. 003 AS4252_U MACkk_3 AMDV140 UMA N AS4252- 141G32Mnkk ACLA- Sp a i n LX.
Appendix A 148 Aspire 4552 AS4252- 144G50Mncc GCTWN S2.R7 602.001 SO2GBI II10 SO2GBIII10 N500GB5.4KS AS4252- 144G50Mnkk GCTWN S2.R6 402.001 SO2GBI II10 SO2GBIII10 N500GB5.4KS AS4252- 144G75Mnrr GCTWN S2.R7 702.001 SO2GBI II10 SO2GBIII10 N750GB5.4KS Model RO Country Acer Part No Description AS4552- N351G5 0Mnkk AAP Thailand LX.
149 Appendix A AS4552- P342G25Mnkk PA A C L A - Sp a i n LX.R62 0C.017 AS4552-P342G25Mnkk LINPUSAEA1 UMACkk_3 1*2G/250/6L2.2/2R/CB_bgn_1.3C_HG_EN62 AS4552- P342G32Mncc AAP Malaysia LX.R78 02.001 AS4552-P342G32Mncc EM W7HP64EMASMY1 MC UMACcc_3 1*2G/320/BT/6L2.
Appendix A 150 AS4552- P541G32Mnrr AAP Indonesia LX.R7A 0C.001 AS4552-P541G32Mnrr LINPUSAID1 UMACrr_3 1*1G/320/6L2.2/2R/CB_bgn_1.3C_HG_ID22 AS4552- P542G25Mnkk WW WW S2.R62 02.002 AS4552-P542G25Mnkk W7HP64ASW W1 MC UMACkk_3 2*1G/250/BT/6L2.2/2R/ CB_bgn_1.
151 Appendix A AS4552- P341G32M nkk Indonesia L X.R620C.007 AS4552_UMA Ckk_3 AAP340 UMA N AS4552- P341G32M nkk Malaysia L X.R620C.008 AS4552_UMA Ckk_3 AAP340 UMA N AS4552- P341G32M nkk Thailand LX.R620C.004 AS4552_UMA Ckk_3 AAP340 UMA N AS4552- P341G32M nkk Thailand LX.
Appendix A 152 AS4552- P344G16M nkk WW S2.R6202.001 AS4552_UMA Ckk_3 AAP340 UMA N AS4552- P346G64M ncc GCTWN S2.R7 80C.001 AS4552_UMA Ccc_3 AAP340 UMA N AS4552- P541G32M nrr Indonesia LX.R7A0C.001 AS4552_UMA Crr_3 A TP540 UMA N AS4552- P542G25M nkk WW S2.
153 Appendix A AS4552- P341G32Mnkk Malaysia LX.R620C.008 SO1GBIII10 N N320GB5.4KS AS4552- P341G32Mnkk Thailand LX.R620C.004 SO1GBIII10 N N320GB5.4KS AS4552- P341G32Mnkk Thailand LX.R620C.005 SO1GBIII10 N N320GB5.4KS AS4552- P341G32Mnkk Thailand LX.R620C.
Appendix A 154 Aspire 4552G AS4552- P541G32Mnrr Indonesia LX.R7A0C.001 S O1GBIII10 N N320GB5.4KS AS4552- P542G25Mnkk WW S2.R6202.002 SO1GBIII10 SO1GBIII10 N250GB5.4KS AS4552- P542G64Mnkk Thailand LX.R620C.001 SO2GBIII10 N N640GB5.4KS AS4552- P542G64Mnkk Thailand LX.
155 Appendix A AS4552G- N852G64Mnkk AAP Thailand LX.R63 0C.007 AS4552G-N852G64Mnkk LINPUSA TH1 P ARK_XT512Ckk_3V3 1*2G/640/BT/6 L2.2/2R/ CB_bgn_1.3C_HG_TH51 AS4552G- N932G32Mnkk AAP Philippin es LX.R63 0C.01 1 AS4552G-N932G32Mnkk LINPUSAPH1 P ARK_XT512Ckk_3V3 1*2G/320/BT/6 L2.
Appendix A 156 AS4552G- N954G75Mnrr AAP Thailand LX.R7C 02.001 AS4552G-N954G75Mnrr EM W7HP64EMASTH4 MC P ARK_XT512Crr_3V 3 2*2G/750 /BT/6L2.2/ 2R/CB_bgn_1.3C_HG_ES61 AS4552G- N954G75Mnrr AAP Thailand LX.R7C 02.002 AS4552G-N954G75Mnrr EM W7HP64EMASTH3 MC P ARK_XT512Crr_3V 3 2*2G/750 /BT/6L2.
157 Appendix A AS4552G- P542G64Mnkk AAP Thailand LX.R63 0C.009 AS4552G-P542G64Mnkk LINPUSA TH3 P ARK_XT512Ckk_3V3 1*2G/640/BT/6 L2.2/2R/ CB_bgn_1.3C_HG_EN1 1 AS4552G- P542G64Mnkk AAP Thailand LX.R63 0C.010 AS4552G-P542G64Mnkk LINPUSA TH1 P ARK_XT512Ckk_3V3 1*2G/640/BT/6 L2.
Appendix A 158 AS4552G- N954G50Mncc GCTWN S2.R7B 02.001 AS4552G_P ARK _XT512Ccc_3V 3 APN950 P ARK_XT 512M-DDR3 (64*16*4) AS4552G- N954G75Mncc Thailand LX.R7B 02.001 AS4552G_P ARK _XT512Ccc_3V 3 APN950 P ARK_XT 512M-DDR3 (64*16*4) AS4552G- N954G75Mncc Thailand LX.
159 Appendix A AS4552G- P542G64Mnkk Thailand LX.R63 0C.010 AS4552G_P ARK _XT512Ckk_3V 3 A TP540 P ARK_XT 512M-DDR3 (64*16*4) AS4552G- P842G64Mnkk Thailand LX.R63 02.002 AS4552G_P ARK _XT512Ckk_3V 3 APP840 P ARK_XT 512M-DDR3 (64*16*4) Model Country Acer Part No Memory 1 Memory 2 HDD 1(GB) AS4552G- N351G50Mnkk Thailand LX.
Appendix A 160 AS4552G- N954G75Mncc Thailand LX.R7B02.00 2 SO2GB III10 SO2GBIII10 N750GB5.4KS AS4552G- N954G75Mncc Thailand LX.R7B02.00 3 SO2GB III10 SO2GBIII10 N750GB5.4KS AS4552G- N954G75Mnkk Thailand LX.R6302 .003 SO2GB III10 SO2GBIII10 N750GB5 .4KS AS4552G- N954G75Mnrr GCTWN S2.
Appendix B 161 Test Compatible Components This computer ’s compat ibility is tested and verified by Acer ’s internal testing department. All of its system functions are tested under Windows ® 7 with backwards compatibility to Windows ® XP .
162 Appendix B AMDISS APN950 CPU AMD PhenomII N9 50 PGA 2.1G 2M 35W KC.PN002.950 AMDISS APP840 CPU AMD PhenomII P840 PGA 1.9G 1. 5M 25W KC.PP002. 840 AMDISS APP940 CPU AMD PhenomII P940 PGA 1.7G 2M 25 W KC.PP002.940 AMDISS A TP540 CPU AMD TurionII P540 PGA 2.
Appendix B 163 LCD AUO NLED 14WXGAG LED LC D AUO 1 4" WXGA Glare B1 40XW 01 V8 0A LF 220nit 8ms 500:1 (power saving) LK.14005.0 10 CMI NLED 14WXGAG LED LCD CMI 14" WXGA Glare BT140GW01 V6 LF 220nit 8ms 600:1 LK.1400D.00 8 MEM NONE SO1GBIII10 Memory NONE REG-ECC DDR III 1066 1GB phantom p/n LF KN.
164 Appendix B.
Appendix C 165 Online Support Information This section describe s online techni cal support servic es available to help you repair your Acer Systems. If you are a distributor , deal er , ASP or TPM, please re fer your technical que ries to your local Acer branch office.
166 Appendix C.
167 B Battery Pack 40, 122 BIOS ROM type 17 vendor 17 BIOS Utility 21–29 Advanced 24 Boot 27 Exit 28 Navigating 21 Power 27 Save and Exit 28 Security 24 System Security 28 Board Layout Top View 137 .
168 R RTC B a tt e ry 70, 97 S SD Card 41, 122 System Block Diagram 4 T T e st Compatible Component s 155 Thermal Module 72, 95 Thermal Unit Failure 133 T ouchpad Failure 127 T r oubles hooting Built-.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Acer 4252 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Acer 4252 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Acer 4252 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Acer 4252 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Acer 4252, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Acer 4252.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Acer 4252. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Acer 4252 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
