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Acer Veriton Z4621G Acer Veriton Z4621G Desktop Service Guide - Page 150

Replacing the OSD Board, Table 3-38.

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Replacing the OSD Board 0 Plug the cable and screw 2 screws to fix the OSD board Be note of the OSD cable arrangment, just refer to the indicated line. Table 3-38. ID Size M3X5L (B) Quantity 2 Screw Type 3-76 System Disassembly and Assembly

Section	Page
CHAPTER 1	9
Hardware Specifications	9
Features	11
Quick Specification	11
Chassis Specification	15
Motherboard Specification	18
System Tour	23
M/B Placement	28
Jumper Setting	29
Block Diagram	31
CHAPTER 2	33
System Utilities	33
CMOS Setup Utility	35
Entering CMOS setup	36
Navigating Through the Setup Utility	36
BIOS Setup Utility	37
AMI UEFI BIOS Flash SOP for DOS	47
AMI UEFI BIOS Flash SOP for Windows	51
AMI UEFI BIOS Flash SOP for DOS with ME	55
AMI UEFI BIOS Flash SOP for SHELL	64
DMI Tool Utilities	67
LAN EEPROM Utilities	72
CHAPTER 3	75
System Disassembly and Assembly	75
Recommended Equipment	79
Pre-disassembly Procedure	79
Disassembly Process	80
Disassembly Flowchart	81
Removing the Stand	83
Removing the Rear Cover	85
Removing the HDD	89
Removing the Converter Board	90
Removing the ODD	91
Removing the Camera	92
Removing the OSD Board	93
Removing the Motherboard Shielding	94
Removing the Display Card	96
Removing the Memory	99
Removing the TV Tuner	100
Removing the WLAN	102
Removing the Touchpad Control Board	103
Removing the Speaker	104
Removing the Heatsink	105
Removing the CPU	106
Removing the System FAN	108
Removing the Motherboard	110
Removing the Left & Right Foot Stand (Power LED)	114
Removing the Base Pan	116
Removing the IR	119
Removing the LCD	120
Reassembly Process	123
Assembly Flowchart	124
Replacing the LCD	126
Replacing the IR	129
Replacing the Base Pan	130
Replacing the Left & Right Foot Stand (Power LED)	133
Replacing the Motherboard	135
Replacing the System FAN	138
Replacing the CPU	140
Replacing the Memory	143
Replacing the WLAN	144
Replacing the Display Card	146
Replacing the Speaker	148
Replacing the OSD Board	150
Replacing the Touchpad Control Board	151
Replacing the Camera	152
Replacing the ODD	154
Replacing the HDD	156
Replacing the Converter Board	158
Replacing the TV Tuner	161
Replacing the Heatsink	163
Replacing the Motherboard Shielding	165
Replacing the Rear Cover	167
Replacing the Stand	169
Thermal Pad location on base pan	171
Thermal Pad location on different VGA card	172
nVidia GT530	172
nVidia GT520	173
nVidia GT405	173
CHAPTER 4	175
Troubleshooting	175
Introduction	177
Hardware Diagnostic Procedure	177
System Check Procedures	177
Power System Check	177
System External Inspection	177
System Internal Inspection	178
Beep Codes	179
Checkpoints	180
BIOS Recovery	182
Calibration SOP of control board	184
Debug Card information	192
Converter board setup	193
CHAPTER 5	195
Jumper and Connector Locations	195
Jumper Setting	198
Setting Jumper	198
CHAPTER 6	201
FRU List	201
VZ4620G/VZ4621G Exploded Diagrams	204

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