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Acer Aspire 5251 Service Guide - Page 200

A23T0, ML320S, WD SATA 8MB LF F/W:01.01A01, Panther B SATA LF F/W:C60F Disk imbalance criteria

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Vendor 60002215 SAMSUNG 60002215 SAMSUNG 60002036 SEAGATE 60002036 SEAGATE 60001922 TOSHIBA DIGI 60002005 HGST SG 60001994 WD 60002005 HGST SG 60002215 SAMSUNG 60002036 SEAGATE 60002036 SEAGATE 60001922 TOSHIBA DIGI 60002005 HGST SG 60001994 WD 60001994 WD LCD 60003316 AUO 60002215 SAMSUNG 60003316 AUO 60002215 SAMSUNG 60003089 LG 60003089 LG 60001927 CPT 190 Type N250GB5.4KS_BR N250GB5.4KS_BR N320GB5.4KS N320GB5.4KS N320GB5.4KS N320GB5.4KS N320GB5.4KS N320GB5.4KS_BR N320GB5.4KS_BR N500GB5.4KS N500GB5.4KS N500GB5.4KS N500GB5.4KS N500GB5.4KS N640GB5.4KS N15.6WXGAG N15.6WXGAG NLED15.6WXGAG NLED15.6WXGAG NLED15.6WXGAG NLED15.6WXGAG NLED15.6WXGAG Description HDD SAMSUNG 2.5" 5400rpm 250GB M7, HM250HI SATA LF F/W:2AC101-C4 (Brazil) HDD SAMSUNG 2.5" 5400rpm 250GB HM251HI, M7E, 320G/P SATA 8MB LF F/W:2AJ0002 HDD SEAGATE 2.5" 5400rpm 320GB ST9320325AS Wyatt SATA LF F/W:0001SDM1 HDD SEAGATE 2.5" 5400rpm 320GB ST9320325AS, 9HH13E-189, Wyatt with new pcb SATA 8MB LF F/ W:0001SDM1 HDD TOSHIBA 2.5" 5400rpm 320GB Capricorn BS ,MK3265GSX SATA 8MB LF F/W:GJ002J HDD HGST 2.5" 5400rpm 320GB HTS545032B9A300 Panther B SATA LF F/W:C60F Disk imbalance criteria = 0.014g-cm HDD WD 2.5" 5400rpm 320GB WD3200BEVT22A23T0,ML320S,WD SATA 8MB LF F/W:01.01A01 HDD HGST 2.5" 5400rpm 320GB HTS545032B9A300, PantherB with better imbalance SATA 8MB LF F/ W:C60F HDD SAMSUNG 2.5" 5400rpm 320GB HM321HI, M7E, 320G/P SATA 8MB LF F/W:2AJ0002 HDD SEAGATE 2.5" 5400rpm 500GB ST9500325AS Wyatt SATA LF F/W:0001SDM1 HDD SEAGATE 2.5" 5400rpm 500GB ST9500325AS,9HH134-189, Wyatt with new pcb SATA 8MB LF F/W:0001SDM1 HDD TOSHIBA 2.5" 5400rpm 500GB MK5065GSX,Capricorn BS, 320G/P SATA 8MB LF F/ W:GJ002J HDD HGST 2.5" 5400rpm 500GB HTS545050B9A300 Panther B SATA LF F/W:C60F Disk imbalance criteria = 0.014g-cm HDD WD 2.5" 5400rpm 500GB WD5000BEVT22A0RT0, ML320M,WD SATA 8MB LF F/W:01.01A01 HDD WD 2.5" 5400rpm 640GB WD6400BEVT22A0RT0, ML320 SATA 8MB LF F/W:01.01A01 CCFL LCD AUO 15.6"W WXGA Glare B156XW01-V2 LF 220nit 8ms 500:1 CCFL LCD SAMSUNG 15.6"W WXGA Glare LTN156AT01-A01 LF 220nit 8ms 600:1 LED LCD AUO 15.6"W WXGA Glare B156XW02 V2 LF 200nit 8ms 500:1 (power saving) LED LCD SAMSUNG 15.6"W WXGA Glare LTN156AT02-A04 LF 220nit 8ms 500:1 LED LCD LPL 15.6"W WXGA Glare LP156WH2-TLE1 LF 220nit 8ms 400:1 LED LCD LPL 15.6"W WXGA Glare LP156WH2-TLEA LF 220nit 16ms 500:1 (color engine) LED LCD CPT 15.6"W WXGA Glare CLAA156WA11A LF 220nit 8ms 600:1 Appendix B

Section	Page
System Specifications	11
Features	11
System Block Diagram	15
Your Acer Notebook tour	16
Front View	16
Closed Front View	17
Left View	17
Right View	18
Bottom View	19
Indicators	19
TouchPad Basics	20
Using the Keyboard	21
Lock Keys and embedded numeric keypad	21
Windows Keys	22
Hot Keys	23
Hardware Specifications and Configurations	24
System Utilities	35
BIOS Setup Utility	35
Navigating the BIOS Utility	35
Aspire 5251/5551G/5551 BIOS	36
Information	36
Main	37
Security	38
Boot	41
Exit	42
BIOS Flash Utilities	43
DOS Flash Utility	44
WinFlash Utility	46
Remove HDD/BIOS Password Utilities	47
Machine Disassembly and Replacement	53
Disassembly Requirements	53
Pre-disassembly Instructions	54
Disassembly Process	55
External Module Disassembly Process	56
External Modules Disassembly Flowchart	56
Removing the Battery Pack	57
Removing the SD Dummy Card	58
Removing the Optical Drive Module	59
Removing the Logic Lower Door	61
Removing the 3G Cover	62
Removing the DIMM Module	63
Removing the WLAN Module	64
Removing the Hard Disk Drive Module	66
Main Unit Disassembly Process	68
Main Unit Disassembly Flowchart	68
Removing the Keyboard	69
Removing the Upper Cover	71
Removing the Left Speaker Module	75
Removing the Right Speaker Module	77
Removing the Power Board	79
Removing the TouchPad Bracket	80
Removing the Card Reader Board	82
Removing the USB Board	83
Removing the Bluetooth Board	85
Removing the Mainboard	86
Removing the Thermal Module	91
Removing the CPU	93
LCD Module Disassembly Process	94
LCD Module Disassembly Flowchart	94
Removing the LCD Assembly	95
Removing the LCD Bezel	98
Removing the Camera Module	99
Removing the LCD Panel	100
Removing the LCD Brackets and LVDS Cable	101
Removing the Microphone Cable	104
Removing the Antennas	106
LCD Module Reassembly Procedure	108
Replacing the Antennas	108
Replacing the Microphone Cable	110
Replacing the LCD Brackets and LVDS Cable	111
Replacing the LCD Panel	113
Replacing the Camera Module	114
Replacing the LCD Bezel	115
Replacing the LCD Assembly	116
Main Module Reassembly Procedure	119
Replacing the CPU	119
Replacing the Thermal Module	120
Replacing the Mainboard	122
Replacing the Bluetooth Board	125
Replacing the USB Board	126
Replacing the Card Reader Board	128
Replacing the TouchPad Bracket	129
Replacing the Power Board	131
Replacing the Right Speaker Module	132
Replacing the Left Speaker Module	133
Replacing the Upper Cover	134
Replacing the Keyboard	137
Replacing the Hard Disk Drive Module	138
Replacing the WLAN Module	139
Replacing the DIMM Modules	140
Replacing the 3G Cover	141
Replacing the Logic Lower Door	142
Replacing the ODD Module	143
Replacing the SD Dummy Card	144
Replacing the Battery	145
Troubleshooting	147
Common Problems	147
Power On Issue	148
No Display Issue	149
Random Loss of BIOS Settings	150
LCD Failure	151
Built-In Keyboard Failure	151
TouchPad Failure	152
Internal Speaker Failure	152
HDD Not Operating Correctly	154
ODD Failure	155
Wireless Function Failure	158
Thermal Unit Failure	158
External Mouse Failure	159
Other Failures	159
Intermittent Problems	160
Undetermined Problems	160
Post Codes	161
Jumper and Connector Locations	165
Top View	165
Bottom View	166
USB/B Board	167
Power Board	167
CR/B Board	168
Clearing Password Check and BIOS Recovery	169
Clearing Password Check	169
Clear CMOS Jumper	169
BIOS Recovery by Crisis Disk	170
FRU (Field Replaceable Unit) List	171
Aspire 5251/5551G/5551 Exploded Diagrams	172
Main Assembly	172
Base Assembly	173
LED Assembly	174
Aspire 5251/5551G/5551 FRU List	175
Screw List	176
Model Definition and Configuration	178
Aspire 5251	178
Aspire 5551G	180
Aspire 5551	189
Test Compatible Components	197
Microsoft® Windows® 7 Environment Test	198
Online Support Information	205

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