![background image](http://html.mh-extra.com/html/acer/veriton-z4621g/veriton-z4621g_service-manual_2838248179.webp)
Troubleshooting
4-5
Beep Codes
0
Beep codes are used by the BIOS to indicate a serious or fatal error to the end user. Beep
codes are used when an error occurs before the system video has been initialized. Beep
codes will be generated by the system board speaker, commonly referred to as the PC
speaker.
AMIBIOS displays the checkpoints in the bottom right corner of the screen during POST. This
display method is limited, since it only displays checkpoints that occur after the video card has
been activated.
Not all computers using AMIBIOS enable this feature. In most cases, a checkpoint card is the
best tool for viewing AMIBIOS checkpoints.
Table 4-1.
System ready
Symptom:
One short beep.
Description:
System is OK.
Memory not installed or memory error
Symptom:
Continuous one long beep.
Description:
Something is wrong with the memory installed.
Note that there could also be something wrong with
just accessing the memory (ie the motherboard has
a problem).
VGA not installed or VGA error
Symptom:
One long beep, then two short beeps
and repeat.
Description:
The motherboard is not able to access the video
card for some reasons. Either the video card is not
working, its memory is not accessible, or its BIOS
may be corrupt. This error code could also mean
something is wrong with the motherboard.
BIOS damaged
Symptom:
One long beep, then one short beep.
Description:
BIOS damaged. Processor jump to BootBlock to
execute the default procedure.
CMOS damaged
Symptom:
Two short beeps.
Description:
CMOS checksum error.
Summary of Contents for Veriton Z4621G
Page 1: ...Acer VZ4620G VZ4621G SERVICEGUIDE ...
Page 2: ...ii ...
Page 6: ...vi ...
Page 7: ...vii ...
Page 8: ...viii ...
Page 9: ...CHAPTER 1 Hardware Specifications ...
Page 28: ...1 20 Hardware Specifications and Configurations M B Placement 0 ...
Page 30: ...1 22 Hardware Specifications and Configurations Internal header pin definition 0 ...
Page 31: ...Hardware Specifications and Configurations 1 23 Block Diagram 0 ...
Page 32: ...1 24 Hardware Specifications and Configurations ...
Page 33: ...CHAPTER 2 System Utilities ...
Page 50: ...2 18 System Utilities 8 Flash BIOS is finished ...
Page 54: ...2 22 System Utilities 10 Flash BIOS is finished ...
Page 63: ...System Utilities 2 31 12 Select Yes and press Enter key 13 Flash BIOS is finished ...
Page 66: ...2 34 System Utilities 11 Select Yes and press Enter key 12 Flash BIOS is finished ...
Page 69: ...System Utilities 2 37 ...
Page 73: ...System Utilities 2 41 ...
Page 74: ...2 42 System Utilities ...
Page 75: ...CHAPTER 3 System Disassembly and Assembly ...
Page 78: ...3 4 ...
Page 86: ...3 12 System Disassembly and Assembly First open one top side then open the other top side ...
Page 87: ...System Disassembly and Assembly 3 13 Open the low side ...
Page 96: ...3 22 System Disassembly and Assembly Removing the Display Card 0 ...
Page 113: ...System Disassembly and Assembly 3 39 ...
Page 121: ...System Disassembly and Assembly 3 47 Unplug the LCD power cable Take out the LCD with bracket ...
Page 131: ...System Disassembly and Assembly 3 57 Lock all the latch Plug the LVDS cable ...
Page 141: ...System Disassembly and Assembly 3 67 Close the CPU bracket cover ...
Page 147: ...System Disassembly and Assembly 3 73 Lock 2 VGA locks ...
Page 153: ...System Disassembly and Assembly 3 79 Attach the mylar to cover the camera ...
Page 160: ...3 86 System Disassembly and Assembly 4 Attach the mylar as the location shown in the picture ...
Page 164: ...3 90 System Disassembly and Assembly N A 4 Table 3 45 ID Size Quantity Screw Type ...
Page 170: ...3 96 System Disassembly and Assembly Install the hinge cover ...
Page 171: ...System Disassembly and Assembly 3 97 Thermal Pad location on base pan 0 ...
Page 174: ...3 100 System Disassembly and Assembly ...
Page 175: ...CHAPTER 4 Troubleshooting ...
Page 190: ...4 16 Troubleshooting Pressing the 25 calibration points in proper hole by using the stylus ...
Page 194: ...4 20 Troubleshooting ...
Page 195: ...CHAPTER 5 Jumper and Connector Locations ...
Page 196: ...5 2 Jumper Setting 5 4 Setting Jumper 5 4 ...
Page 197: ...Jumper and Connector Locations 5 3 Jumper and Connector Locations ...
Page 200: ...5 6 Jumper and Connector Locations ...
Page 201: ...CHAPTER 6 FRU List ...
Page 202: ...6 2 VZ4620G VZ4621G Exploded Diagrams 6 4 FRU List 6 7 ...
Page 204: ...6 4 FRU Field Replaceable Unit List VZ4620G VZ4621G Exploded Diagrams 0 Main Exploded Diagram ...