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Acer TravelMate P243-M Acer TravelMate P243-M Notebook Service Guide - Page 126

RTC battery Removal

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RTC battery Removal 0 Prerequisite: Mainboard Removal 1. Find the RTC battery (A) on the mainboard. Refer to Figure 3-30. 2. Disconnect the RTC battery cable from mainboard connector (B) (Figure 3-30). C A B Figure 3-30. RTC battery & Thermal Module Location 3. Pry up the the RTC battery from the adhesive and remove it (Figure 3-31). B A 3-30 Figure 3-31. RTC battery Machine Maintenance Procedures

Section	Page
Hardware Specifications	11
Features	15
Operating System	15
CPU	15
Chipset	15
System Memory	15
Display	16
Graphics	16
Audio	17
Storage	17
Optical Media Drive	17
Webcam	18
Wireless and Networking	18
Privacy Control	18
Security	18
Power Adapter and Battery	19
Input and Control	19
Input and Output (I/O) Ports	19
Software	20
Optional Items	21
Dimension and Weight	21
Warranty	21
Quality and Reliability Tests	21
Environment	21
Notebook Tour	22
Touchpad Basics	29
Using the Keyboard	30
Windows Keys	32
Hotkeys	33
System Block Diagram	35
Specification Tables	36
Computer specifications	36
System Board Major Chips	37
Processor	37
Processor Specifications	38
CPU Fan True Value Table	38
System Memory	39
Memory Combinations	39
Video Interface	39
BIOS	40
Keyboard	40
Hard Disk Drive (AVL components)	41
Hard Disk Drive (AVL components) (Continued)	42
Hard Disk Drive (AVL components) (Continued)	43
Hard Disk Drive (AVL components) (Continued)	44
BD/DVD Super Multi Drive	45
BD/DVD Super Multi Drive (Continued)	46
BD/DVD Super Multi Drive (Continued)	47
DVD Super-Multi Drive	48
DVD Super-Multi Drive (Continued)	49
LCD 14.0”	50
LCD Inverter (not available with this model)	50
Display Supported Resolution (LCD Supported Resolution)	51
Graphics Controller (UMA)	51
Graphics Controller (Discrete)	52
Display Supported Resolution (GPU Supported Resolution)	52
LAN Interface	53
Bluetooth Interface (not available in this model)	53
Bluetooth Module	53
Wireless Module 802.11a/b/g/n	54
Mini Card Wireless Networking Card	54
3G Card (not available in this model)	54
Audio Codec and Amplifier	55
Audio Codec and Amplifier (Continued)	56
Audio Interface	56
1.3M HD Camera	57
1.0 M Camera	57
VRAM	57
USB Port	58
HDMI Port	58
Battery	58
AC Adapter	58
System Power Management	59
Card Reader	59
System LED Indicator	60
System DMA Specification	60
System Interrupt Specification	61
System I/O Address Map	65
System Utilities	67
BIOS Setup Utility	69
Navigating the BIOS Utility	69
BIOS	70
Information	70
Main	72
Security	74
Boot	78
Exit	79
BIOS Flash Utilities	80
DOS Flash Utility	81
WinFlash Utility	83
Clearing BIOS Passwords	84
Removing Insyde BIOS Passwords	85
Removing Insyde HDD Password	87
Miscellaneous Tools	88
Using DMITools	88
Using UUIDTools	92
Using the LAN MAC EEPROM Utility	94
Crisis Disk Recovery	95
Machine Maintenance Procedures	97
Introduction	101
General Information	101
Recommended Equipment	101
Pre-disassembly Instructions	102
Disassembly Process	103
External Module Disassembly Process	104
External Modules Disassembly Flowchart	104
Dummy Card Removal	105
Battery Pack Removal	106
ODD (Optical Disk Drive) Module Removal	107
Keyboard Removal	109
Base Door Removal	110
WLAN (Wireless Local Area Network) Module Removal	111
DIMM (Dual In-line Memory Module) Module Removal	113
HDD (Hard Disk Drive) Module Removal	114
Main Unit Disassembly Process	116
Main Unit Disassembly Flowchart	116
Upper Case Removal	117
IO Board Removal	119
Mainboard Removal	121
Speaker Module Removal	124
RTC battery Removal	126
Thermal Module Removal	128
CPU Processor Removal	129
LCD (Liquid Crystal Display) Module Removal	130
Support Bracket Removal	132
DC-in Jack Removal	133
LCD Module Disassembly Process	134
LCD Module Disassembly Flowchart	134
LCD Bezel Removal	135
Camera Module Removal	137
LCD Panel Removal	138
LCD Bracket Removal	140
LVDS and Camera Cable Removal	141
LCD Module Reassembly Process	143
Replacing the LVDS and Camera Cable	143
Replacing the LCD Bracket	145
Replacing the LCD Panel	146
Replacing the Camera Module	148
Replacing the LCD Bezel	149
Main Unit Reassembly Process	151
Replacing the DC-in Jack	151
Replacing the Support Bracket	152
Replacing the LCD (Liquid Crystal Display) Module	153
Replacing the CPU Processor	155
Replacing the Thermal Module	156
Replacing the RTC battery	158
Replacing the Speaker Module	159
Replacing the Mainboard	160
Replacing the IO Board	162
Replacing the Upper Case	164
External Module Reassembly Process	166
Replacing the HDD (Hard Disk Drive) Module	166
Replacing the DIMM (Dual In-line Memory Module) Module	168
Replacing the WLAN (Wireless Local Area Network) Module	169
Replacing the Base Door	170
Replacing the Keyboard	171
Replacing the ODD (Optical Disk Drive) Module	173
Replacing the Battery Pack	175
Replacing the Dummy Card	176
Troubleshooting	177
Introduction	179
General Information	179
Power On Issues	180
No Display Issues	182
LCD Picture Failure	184
Internal Keyboard Failure	185
Touchpad Failure	186
Internal Speaker Failure	187
Internal Microphone Failure	189
USB Failure	190
Other Functions Failure	191
Intermittent Problems	192
Undetermined Problems	192
Post Codes	193
Jumper and Connector Locations	201
Mainboard Jumper and Connector Locations	203
Clearing Password Check and BIOS Recovery	205
Clearing Password Check	205
BIOS Recovery by Crisis Disk	207
FRU (Field Replaceable Unit) List	209
Exploded Diagrams	212
FRU List	216
Screw List	226
Model Definition and Configuration	227
TravelMate P243 Series	229
Test Compatible Components	257
Microsoft® Windows® 7 Environment Test	260
Online Support Information	269

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