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Acer Aspire X3990 Acer Aspire X3990 Desktop Service Guide - Page 106

Keyboard LITE-ON SK-9621B USB 107KS Black

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Category 98 Description Keyboard LITE-ON SK-9621B USB 105KS Black Canadian French Keyboard LITE-ON SK-9621B USB 107KS Black Brazilian Portuguese Keyboard LITE-ON SK-9621B USB 109KS Black Japanese Keyboard LITE-ON SK-9621B USB 105KS Black German Keyboard LITE-ON SK-9621B USB 105KS Black Italian Keyboard LITE-ON SK-9621B USB 105KS Black French Keyboard LITE-ON SK-9621B USB 105KS Black Swedish Keyboard LITE-ON SK-9621B USB 105KS Black UK Keyboard LITE-ON SK-9621B USB 105KS Black Dutch Keyboard LITE-ON SK-9621B USB 105KS Black Swiss/G Keyboard LITE-ON SK-9621B USB 105KS Black Belgium Keyboard LITE-ON SK-9621B USB 105KS Black Icelandic Keyboard LITE-ON SK-9621B USB 105KS Black Norwegian Keyboard LITE-ON SK-9621B USB 104KS Black Hebrew Keyboard LITE-ON SK-9621B USB 105KS Black Polish Keyboard LITE-ON SK-9621B USB 105KS Black Slovenian Keyboard LITE-ON SK-9621B USB 105KS Black Slovak Keyboard LITE-ON SK-9621B USB 104KS Black Russian Keyboard LITE-ON SK-9621B USB 105KS Black Hungarian Keyboard LITE-ON SK-9621B USB 104KS Black Greek Keyboard LITE-ON SK-9621B USB 105KS Black Danish Keyboard LITE-ON SK-9621B USB 104KS Black Czech Part Number KB.USB0B.338 KB.USB0B.339 KB.USB0B.340 KB.USB0B.341 KB.USB0B.342 KB.USB0B.343 KB.USB0B.344 KB.USB0B.345 KB.USB0B.346 KB.USB0B.347 KB.USB0B.348 KB.USB0B.349 KB.USB0B.350 KB.USB0B.351 KB.USB0B.352 KB.USB0B.353 KB.USB0B.354 KB.USB0B.355 KB.USB0B.356 KB.USB0B.357 KB.USB0B.358 KB.USB0B.359 Exploded Diagram Item Chapter 6

Section	Page
Aspire X3990 Service Guide	1
Revision History	2
Copyright	3
Disclaimer	4
Conventions	5
Table of Contents	7
System Tour	9
Features	9
Block Diagram	12
System Components	13
Front Panel	13
Rear Panel	14
Hardware Specifications and Configurations	15
Power Management Function(ACPI support function)	19
System Utilities	20
CMOS Setup Utility	20
Entering CMOS setup	21
Navigating Through the Setup Utility	21
Setup Utility Menus	22
Main	22
Advanced	23
Power	28
Security	29
Boot Options	30
Exit	31
System Disassembly and Assembly	32
Disassembly Requirements	32
Pre-disassembly Procedure	33
Removing the Side Panel	34
Removing the Heat Sink Fan Assembly	35
Removing the Processor	37
Removing the TV-Tuner Card	39
Removing the VGA Card	40
Removing the Front Bezel	41
Removing the Cage of ODD and HDD	42
Removing the Hard Disk Drive	45
Removing the Optical Drive	46
Removing the Memory Modules	47
Removing the Power Supply	48
Removing the Mainboard	50
Removing the Front I/O&USB and Card Reader Boards	53
Assembly Requirements	56
Assembly Procedure	57
Install the Processor	58
Install the Memory	59
Install the Heat Sink Fan Assembly	60
Removing the Side Panel	61
Removing the Front Bezel	62
Removing the Cage of ODD and HDD	63
Install the Power Supply	64
Install the I/O Shielding	65
Install the Main Board	66
Connect the Cable	67
Install the Optica Drive	69
Install the Hard Disk Drive	70
Install the Cage of ODD and HDD	71
Install the Front Bezel	73
Install the VGA Card	74
Install the TV-Tuner Card	75
Install the Side Panel	76
System Troubleshooting	77
Hardware Diagnostic Procedure	77
System Check Procedures	78
Power System Check	78
System External Inspection	78
System Internal Inspection	78
Beep Codes	79
Checkpoints	80
Viewing BIOS checkpoints	80
Bootblock Initialization Code Checkpoints	80
Bootblock Recovery Code Checkpoints	82
BIOS Recovery	83
Jumper and Connector Information	84
M/B Placement	84
Jumper Setting	86
Setting Jumper	86
FRU (Field Replaceable Unit) List	93
Aspire X3990 Exploded Diagram	94

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