HP ProDesk 600 G4 Base Model Small Form Factor PC Manual de usuario Pagina 80
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Fuzzy focus; streaking, ghosting, or shadowing eects; horizontal scrolling lines; faint vertical bars; or unable to center the picture on
the screen (at panel monitors using an analog VGA input connection only).
Cause Solution
the appropriate monitor, and download either SP32347 or
SP32202: http://www.hp.com/support
Graphics card is not seated properly or is bad (some models). 1. Reseat the graphics card.
2. Replace the graphics card.
Certain typed symbols do not appear correct.
Cause Solution
The font you are using does not support that particular symbol. Use the Character Map to locate and select the appropriate symbol.
You can copy the symbol from the Character Map into a document.
Type ch in the taskbar search box, and then select Character Map
from the list of applications.
Solving audio problems
If the computer has audio features and you encounter audio problems, see the common causes and solutions
listed in the following table.
Sound cuts in and out.
Cause Solution
Processor resources are being used by other open applications. Shut down all open processor-intensive applications.
Sound does not come out of the speaker or headphones.
Cause Solution
Software volume control is turned down or muted. Double-click the Speaker icon on the taskbar, then make sure that
Mute is not selected and use the volume slider to adjust
the volume.
Audio is hidden in Computer Setup. Enable the audio in Computer Setup: Advanced > Built-in Device
Options.
The external speakers are not turned on. Turn on the external speakers.
The audio device may be connected to the wrong jack. Ensure that the device is connected to the correct jack on
the computer. The speakers should be plugged into the line-out jack
and the headphones should be plugged into the headphone jack.
External speakers plugged into the wrong audio jack on a recently
installed sound card.
See the sound card documentation for proper speaker connection.
The rear audio jack output is the green receptacle.
Headphones or devices connected to the line-out connector mute
the internal speaker.
Turn on and use headphones or external speakers, if connected, or
disconnect headphones or external speakers.
Computer is in Sleep state. Press the power button to resume from Sleep state.
72 Chapter 6 Troubleshooting without diagnostics
- Maintenance and Service Guide 1
- About This Book 3
- Table of contents 5
- 1 Product features 9
- Front panel components 10
- Rear panel components 11
- 2 Illustrated parts catalog 12
- Computer major components 5 13
- Miscellaneous parts 14
- Miscellaneous parts 7 15
- Miscellaneous parts 9 17
- Miscellaneous parts 11 19
- Miscellaneous parts 13 21
- Miscellaneous parts 15 23
- Miscellaneous parts 17 25
- Miscellaneous parts 19 27
- Miscellaneous parts 21 29
- Generating static 30
- Grounding the work area 31
- Operating guidelines 32
- Routine care 33
- Service considerations 34
- SMART ATA drives 35
- Preparation for disassembly 36
- Access panel 37
- Optical drive 38
- Front bezel 39
- Hard drives 40
- Drive cage 42
- Memory module 43
- Power supply 45
- Fan shroud 46
- Fan-sink 47
- Processor 48
- Serial connector module 50
- System board 51
- 6. Remove the lower cage (2) 52
- System board 45 53
- Connector board 54
- Computer Setup–Main 57
- Computer Setup—Security 59
- Computer Setup—Advanced 61
- Safety and comfort 67
- Helpful hints 68
- Solving general problems 69
- Solving general problems 63 71
- Solving power problems 72
- Solving hard drive problems 73
- Solving display problems 76
- Solving display problems 69 77
- Solving display problems 71 79
- Solving audio problems 80
- Solving audio problems 73 81
- Solving printer problems 82
- Solving network problems 86
- Solving network problems 79 87
- Solving memory problems 89
- Solving software problems 92
- 10 System backup and recovery 106
- Using Windows tools 108
- Restore and recovery 108
- A Battery replacement 111
- Current BIOS steps 114
- Nonvolatile memory usage 116
- Nonvolatile memory usage 109 117
- Questions and answers 118
- Using HP Sure Start 119
- C Power cord set requirements 120
- Country-specic requirements 121
- D Specications 122
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