PDF Service Guide Aspire 1820PT 1420P Series Laptop - 973 KB
This service guide is the comprehensive technical manual for the Acer Aspire 1820PT and 1420P series laptops.
It is intended for service technicians and provides detailed instructions for disassembly, component replacement, and troubleshooting.
The guide includes exploded views, part numbers, and step-by-step repair procedures.
Use this manual to perform professional-level repairs and maintenance on your Aspire laptop.
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Aspire 1820PT/1420P Series
Service Guide
Service guide files and updates are available
on the ACER/CSD web; for more information,
please refer to http://csd.acer.com.tw
PRINTED IN TAIWAN
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Chapter 1
System Specifications
Features
Below is a brief summary of the computer’s many features:
Operating System
• Genuine Windows® 7
Platform
• Intel® Core™2 Duo processor*
• Intel® Pentium® mobile processor*
• Intel® Celeron® mobile processor*
• Mobile Intel® GS45 Express Chipset
System Memory
• Dual-Channel SDRAM support
• Up to 4 GB of DDR3 1066 MHz memory, upgradeable to 8 GB using two soDIMM modules
Display and graphics
• 11.6" HD 1366 x 768
• Convertible display
• Mobile Intel® GS45 Express Chipset
Storage subsystem
• 2.5" hard disk drive
• Multi-in-1 card reader
Audio subsystem
• Optimized 2nd Generation Dolby® Sound Room® audio enhancement
• High-definition audio support
• S/PDIF (Sony/Philips Digital Interface) support for digital speakers
• MS-Sound compatible
• Built-in microphone
Communication
• Integrated Acer Crystal Eye webcam*
• WWAN: UMTS/HSPA at 850/900/1900/2100 MHz and quad-band GSM/GPRS/EDGE (850/900/
1800/1900 MHz)*
Chapter 1 1
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Windows Keys
The keyboard has two keys that perform Windows-specific functions.
Key Description
Windows key Pressed alone, this key has the same effect as clicking on the Windows Start button;
it launches the Start menu. It can also be used with other keys to provide a variety of
functions:
< >: Open or close the Start menu
< > + <D>: Display the desktop
< > + <E>: Open Windows Explore
< > + <F>: Search for a file or folder
< > + <L>: Lock your computer (if you are connected to a network domain), or
switch users (if you're not connected to a network domain)
< > + <M>: Minimizes all windows
< > + <R>: Open the Run dialog box
< > + <U>: Open Ease of Access Center
< > + <BREAK>: Display the System Properties dialog box
< > + <TAB>: Cycle through programs on the taskbar
<CTRL> + < > + <F>: Search for computers (if you are on a network)
Note: Depending on your edition of Windows 7, some shortcuts may not function as
described.
Application This key has the same effect as clicking the right mouse button; it opens the
key application's context menu.
Chapter 1 11
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Item Specifications
Interface USB 2.0
Antenna 1x2
Embedded Controller
Item Specifications
Chipset Winbond WPCE775LA0DG
Features • Shared SPI BIOS flash memory with page programming support.
• High-accuracy, high-speed ADC.
• Up to 95 GPIO ports (including keyboard scanning) with a variety of wake-up
events (up to 42 wake-up inputs).
• 16-bit RISC core, with up to 4 Mbytes of external address space, running at up to
25 MHz.
• 128-pin LQChipFP
Battery
Specifications
Item
6 Cell
Vendor & model name SIMPLO UM09F70 3S2P
SANYO UM09F36 3S2P
Battery Type Li-ion
Pack capacity SANYO 6 cell 5600mAh
SAMSUNG 6 cell 5600mAh
LGC 6 cell 5600mAh
Number of battery cell 6
Package configuration 3 cells in series, 2 series in
parallel
Normal voltage 11.1
Charge voltage 12.6
Chapter 1 21
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BIOS Flash Utility
The BIOS flash memory update is required for the following conditions:
• New versions of system programs
• New features or options
• Restore a BIOS when it becomes corrupted.
To run the BIOS flash utility:
1. Copy the BIOS flash tool and the BIOS into a USB flash disk.
2. Set the computer to boot from the USB flash disk. See “Boot” on page 29.
3. On boot-up enter at the DOS prompt:
C:\> flashit.exe v3106.fd /dc /beep:2000
Chapter 2 31
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External Module Disassembly Process
NOTE: The product previews seen in the disassembly procedures may not represent the final product color or
configuration.
External Modules Disassembly Flowchart
Turn off system
and peripherals
power
Disconnect power
and signal cables
from system
Remove
Dummy Card
Remove
Battery
Remove
SIM Card
(Optional)
Remove
Lower Cover
Remove Remove Remove Remove
HDD DIMM WLAN Board 3G Board
Screw List
Step Screw Quantity Part No.
WLAN M2*3 1 86.ARE07.002
3G Module M2*3 1 86.ARE07.002
Chapter 3 41
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Main Unit Disassembly Process
IMPORTANT: Cable paths and positioning may not represent the actual model. During the removal and
replacement of components, ensure all available cable channels and clips are used and that the cables are
replaced in the same position.
NOTE: The product previews seen in the disassembly procedures may not represent the final product color or
configuration.
Main Unit Disassembly Flowchart
Remove External
Modules before
proceeding
Remove
Keyboard
Remove
Hinge Covers
Remove Remove
Upper Cover Button Board
Remove Remove Remove
LED Board CRT Board I/O Board
Remove
Bluetooth Module
Remove Remove Remove
Thermal Module Mainboard RTC Battery
Remove Remove
Speaker Module LCD Module
Chapter 3 51
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Removing the Button Board
IMPORTANT: The Touchpad Board cannot be removed individually. To replace the Touchpad Board, replace the
entire Upper Cover.
1. See “Removing the Upper Cover” on page 57.
2. Unlock the button board cable.
3. Disconnect the button board cable.
4. Pull the button board cable off the adhesive.
Chapter 3 61
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Removing the CRT Board
1. See “Removing the Upper Cover” on page 57.
2. Turn the LCD module to expose the CRT board.
3. Remove the one (1) screw.
Step Screw Quantity Screw Type.
CRT Board M2*4 1
Chapter 3 71
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Screw List
Step Screw Quantity Part No.
LCD Bezel M2*5 2 86.TG607.004
LCD Panel M2*4 4 86.W0107.003
LCD Brackets M2*2.5 4 86.TPK07.001
Touchscreen M2*4 2 86.W0107.003
Board
Hinge M2*4 3 86.W0107.003
Chapter 3 81
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Removing the LCD Brackets
1. See “Removing the Microphone” on page 86.
2. Remove the four (4) screws from the left and right brackets.
Step Screw Quantity Screw Type.
LCD Panel Brackets M2*2.5 4
3. Remove the brackets.
Chapter 3 91
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2. Replace the four (4) screws.
Step Screw Quantity Screw Type.
LCD Panel Brackets M2*2.5 4
Replacing the LCD Cable
1. Adhere the touchscreen cable to the panel.
Chapter 3 101
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3. Turn the LCD module.
4. Lay the LCD cable in the retention guide.
5. Lay the antenna cable in the retention guide.
Chapter 3 111
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Replacing the Bluetooth Module
1. Adhere the Bluetooth module to the bottom cover.
2. Connect the Bluetooth cable to the Bluetooth module.
3. Connect the Bluetooth cable to the main board.
Chapter 3 121
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7. Turn the computer over and replace the twenty-two (22) screws in the lower cover.
Step Screw Quantity Screw Type.
Lower Cover M2*5 (Red Call Out) 16
M2*4 (Green Call Out) 6
Replacing the Hinge Covers
1. Replace the hinge bezel.
Chapter 3 131
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Replacing the SIM Card
1. Insert the SIM card into the slot.
Replacing the Battery
1. Insert the battery outer edge into the slots.
2. Push the battery down into place.
Chapter 3 141
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8. Remove and recently installed hardware or software.
9. Restore system and file settings from a known good date using System Restore.
If the issue is not fixed, repeat the preceding steps and select an earlier time and date.
10. Reinstall the Operating System.
11. If the Issue is still not resolved, see “Online Support Information” on page 165.
Internal Microphone Failure
If the internal Microphone fails, perform the following actions one at a time to correct the problem. Do not
replace non-defective FRUs:
Start
OK
Check M/B Mic. Re-assemble the
cable NG MIC cable to M/B
OK OK
Check MIC wire Swap MIC wire of
of LCD module NG LCD module
Swap M/B
Microphone Problems
If internal or external Microphones do no operate correctly, perform the following actions one at a time to
correct the problem.
1. Check that the microphone is enabled. Navigate to Start´ Control Panel´ Hardware and Sound´
Sound and select the Recording tab.
2. Right-click on the Recording tab and select Show Disabled Devices (clear by default).
3. The microphone appears on the Recording tab.
4. Right-click on the microphone and select Enable.
5. Select the microphone then click Properties. Select the Levels tab.
6. Increase the volume to the maximum setting and click OK.
7. Test the microphone hardware:
a. Select the microphone and click Configure.
b. Select Set up microphone.
Chapter 4 151
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0x PLATFORM_IDE
56
0x SMBIOS
57
0x MEMORY_SUB_CLASS
58
0x MISC_SUB_CLASS
59
0x5A CON_PLATFORM
0x5B SAVE_MEMORY_CONFIG
0x5C ACPI_SUPPORT
0x5D CON_SPLITTER_UGA_VGA / CON_SPLITTER
0x5 VGA_CLASS
E
0x DATA_HUB
5F
0x DISK_IO
60
0x MEMORY_TEST
61 CRISIS_RECOVERY
0x
62
0x LEGACY_8259
63
0x LEGACY_REGION
64
0x LEGACY_INTERRUPT
65
0x BIOS_KEYBOARD
66
0x BIOS_VEDIO
67
0x MONITER_KEY
68
0x LEGACY_BIOS
69
0x6A LEGACY_BIOS_PLATFORM
0x6B PCI_PLATFORM
0x6C ISA_FLOOPY
0x6D PS2_MOUSE
0x6 USB_BOT
E
0x USB_CBI0
6F
Chapter 4 161
--- Page 21 ---
Fru List
ACER PART
CATEGORY PARTNAME
NO.
ADAPTER
ADAPTER DELTA 30W 19V 1.7X5.5X11 BLACK ADP-30JH AP.03001.001
BA LF
ADAPTER LITE-ON 30W 1.7X5.5X11 BLACK PA-1300- AP.03003.001
04AC LF
ADAPTER HIPRO 30W 19V 1.7X5.5X11 BLACK HP- AP.0300A.001
A0301R3 B1LF LF
BATTERY
Battery SIMPLO UM-2009F Li-Ion 3S2P SAMSUNG 6 cell BT.00607.114
5600mAh Main COMMON ID:UM09F70
Battery SANYO UM-2009F Li-Ion 3S2P SANYO 6 cell BT.00603.105
5600mAh Main COMMON
BOARD
Foxconn Bluetooth FOX BRM 2046 BT2.1 BH.21100.004
Lan Intel WLAN 112BN.HMWG MM#903341 KI.CPH01.001
Lan Intel WLAN 512AG_HMWG Shirley Peak 5100 KI.SPH01.005
MM#897072
Lan Intel WLAN 512AN_HMWG Shirley Peak 5100 KI.SPH01.003
MM#895373
Foxconn Wireless LAN Atheros HB93 1x2 BGN (HM) NI.23600.046
CRT BOARD 55.PL907.001
LED BOARD 55.PL907.002
CARD READER BOARD 55.PL907.003
TP BOARD 55.PL907.004
Chapter 6 171
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RO Country Acer Part No Description CPU
EME Holland LX.PL902.017 AS1420P-232G25n W7HP64ATNL1 MC CMSU230
A UMACkk 1*2G/250/BT/6L2.8/5R/ 0B
CB_bgn_0.3D_AU_NL11
EME Eastern LX.PL902.016 AS1420P-232G25n W7HP64ATEU7 MC CMSU230
A Europe UMACkk 1*2G/250/BT/6L2.8/5R/ 0B
CB_bgn_0.3D_AU_ENQ1
EME Czech LX.PL902.015 AS1420P-232G25n W7HP64ATCZ2 MC CMSU230
A UMACkk 1*2G/250/BT/6L2.8/5R/ 0B
CB_bgn_0.3D_AU_SK11
EME Denmark LX.PL902.014 AS1420P-232G25n W7HP64ATDK2 MC CMSU230
A UMACkk 1*2G/250/BT/6L2.8/5R/ 0B
CB_bgn_0.3D_AU_ENS1
EME Cyprus LX.PL902.013 AS1420P-232G25n W7HP64ATCY1 MC CMSU230
A UMACkk 1*2G/250/BT/6L2.8/5R/ 0B
CB_bgn_0.3D_AU_ES61
EME Eastern LX.PL902.012 AS1420P-232G25n W7HP64ATEU5 MC CMSU230
A Europe UMACkk 1*2G/250/BT/6L2.8/5R/ 0B
CB_bgn_0.3D_AU_PL71
EME Eastern LX.PL902.011 AS1420P-232G25n W7HP64ATEU4 MC CMSU230
A Europe UMACkk 1*2G/250/BT/6L2.8/5R/ 0B
CB_bgn_0.3D_AU_SV21
EME Poland LX.PL902.010 AS1420P-232G25n W7HP64ATPL1 MC CMSU230
A UMACkk 1*2G/250/BT/6L2.8/5R/ 0B
CB_bgn_0.3D_AU_PL11
EME UK LX.PL902.009 AS1420P-232G25n W7HP64ATGB1 MC CMSU230
A UMACkk 1*2G/250/BT/6L2.8/5R/ 0B
CB_bgn_0.3D_AU_EN11
EME Greece LX.PL902.008 AS1420P-232G25n W7HP64ATGR1 MC CMSU230
A UMACkk 1*2G/250/BT/6L2.8/5R/ 0B
CB_bgn_0.3D_AU_EL31
EME Serbia/ LX.PL902.007 AS1420P-232G25n W7HP64ATCS1 MC CMSU230
A Macedonia UMACkk 1*2G/250/BT/6L2.8/5R/ 0B
CB_bgn_0.3D_AU_SL11
EME Switzerland LX.PL902.006 AS1420P-232G25n W7HP64ATCH1 MC CMSU230
A UMACkk 1*2G/250/BT/6L2.8/5R/ 0B
CB_bgn_0.3D_AU_IT41
EME Eastern LX.PL902.004 AS1420P-232G25n W7HP64ATEU7 MC CMSU230
A Europe UMACkk 1*2G/250/BT/6L2.8/5R/ 0B
CB_bgn_0.3D_AU_SL11
EME Luxembour LX.PL902.005 AS1420P-232G25n W7HP64ATLU3 MC CMSU230
A g UMACkk 1*2G/250/BT/6L2.8/5R/ 0B
CB_bgn_0.3D_AU_IT41
AAP Australia/ LX.PL902.003 AS1420P-232G25n W7HP64ATAU1 MC CMSU230
New UMACkk 1*2G/250/BT/6L2.8/5R/ 0B
Zealand CB_bgn_0.3D_AU_ES61
TWN GCTWN LX.PL902.002 AS1420P-232G25n W7HP64ATTW1 MC CMSU230
UMACkk 1*2G/250/BT/6L2.8/5R/ 0B
CB_bgn_0.3D_AU_TC11
WW WW S2.PL907.001 AS1420P-743G32n W7UT64AWW1 MC CM743B
UMACkk 1G+2G/320/BT/6L2.8/5R/
CB_bgn_0.3D_AU_ES62
Appendix A 181
--- Page 23 ---
RO Country Acer Part No Description CPU
AAP Australia/ LX.PLN02.008 AS1820PT-732G25n W7HP64ATAU1 MC C2DSU730
New UMAGCkk 1*2G/250/BT/6L2.8/5R/ 0B
Zealand CB_n2_0.3D_E77W_AU_ES61
EME UK LX.PLN02.010 AS1820PT-733G16n W7HP64ATGB1 MC C2DSU730
A UMAGCkk 2G+1G/160/BT/6L2.8/5R/ 0B
CB_n2_0.3D_E77W_AUk_EN11
EME Germany LX.PLN02.007 AS1820PT-734G50n W7HP64ATDE1 MC C2DSU730
A UMAGCkk 2*2G/500_L/BT/6L2.8/5R/ 0B
CB_n2_0.3D_E77W_AU_DE11
AAP Australia/ LX.PLN02.006 AS1820PT-734G50n W7HP64ATAU1 MC C2DSU730
New UMAGCkk 2*2G/500_L/BT/6L2.8/5R/ 0B
Zealand CB_n2_0.3D_E77W_AU_ES61
AAP Australia/ LX.PLN02.005 AS1820PT-734G32n W7HP64ATAU1 MC C2DSU730
New UMAGCkk 2*2G/320/BT/6L2.8/5R/ 0B
Zealand CB_n2_0.3D_E77W_AU_ES61
AAP Thailand LX.PLN02.004 AS1820PT-734G50n EM W7HP64EMATTH1 C2DSU730
MC UMAGCkk 2*2G/500_L/BT/6L2.8/5R/ 0B
CB_n2_0.3D_G2K_AU_TH41
AAP Thailand LX.PLN02.003 AS1820PT-734G50n EM W7HP64EMATTH1 C2DSU730
MC UMAGCkk 2*2G/500_L/BT/6L2.8/5R/ 0B
CB_n2_0.3D_E77W_AU_TH41
TWN GCTWN LX.PLN02.002 AS1820PT-732G32n W7HP64ATTW1 MC C2DSU730
UMAGCkk 1*2G/320/BT/6L2.8/5R/ 0B
CB_n2_0.3D_G2K_AU_TC11
AAP Singapore LX.PLN02.001 AS1820PT-734G32n W7HP64ATSG1 MC C2DSU730
UMAGCkk 2*2G/320/BT/6L2.8/5R/ 0B
CB_n2_0.3D_G2K_AU_ES61
WW WW S2.PLN07.001 AS1820PT-734G50n W7UT64AWW1 MC C2DSU730
UMAGCkk 2*2G/500_L/BT/6L2.8/5R/ 0B
CB_n2_0.3D_G2K_AU_ES62
EME Germany LX.PN702.001 AS1820PT-734G50n W7HP64ATDE1 MC C2DSU730
A UMAGCrr 2*2G/500_L/BT/6L2.8/5R/ 0B
CB_n2_0.3D_E77W_AU_DE11
WW WW S2.PN702.001 AS1820PT-734G50i W7HP64AWW1 MC C2DSU730
UMAGCrr 2*2G/500_L/BT/6L2.8/5R/ 0B
CB_abg_0.3D_E77W_AU_ES62
Appendix A 191