Lenovo ThinkCentre M92z Hardware Maintenance Manual - ThinkCentre M92z (type 3 - Page 43

Audio problems, No audio in Windows - edge

Page 43 highlights

3. Clean the inside edges 1 of the monitor with a soft, dry brush, and then with a soft, dry, and lint-free cloth. Do not leave any scratch on the edges. Figure 2. Cleaning the inside edges of the monitor Audio problems Select your symptom from the following list: • "No audio in Windows" on page 39 • "An audio disc or AutoPlay-enabled disc does not automatically play when it is inserted into a drive" on page 40 • "Sound comes from one external speaker only" on page 40 • "No audio in DOS applications or games" on page 40 No audio in Windows Symptom: No audio in Windows Actions: • If you are using powered external speakers that have an On/Off control, verify that the On/Off control is set to the On position and the speaker power cable is connected to a properly grounded, functional ac electrical outlet. • If your external speakers have a volume control, verify that the volume control is not set too low. Chapter 5. Troubleshooting and diagnostics 39

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144

3. Clean the inside edges
1
of the monitor with a soft, dry brush, and then with a soft, dry, and lint-free
cloth. Do not leave any scratch on the edges.
Figure 2. Cleaning the inside edges of the monitor
Audio problems
Select your symptom from the following list:
“No audio in Windows” on page 39
“An audio disc or AutoPlay-enabled disc does not automatically play when it is inserted into a drive”
on page 40
“Sound comes from one external speaker only” on page 40
“No audio in DOS applications or games” on page 40
No audio in Windows
Symptom: No audio in Windows
Actions:
If you are using powered external speakers that have an On/Off control, verify that the On/Off control is
set to the
On
position and the speaker power cable is connected to a properly grounded, functional ac
electrical outlet.
If your external speakers have a volume control, verify that the volume control is not set too low.
Chapter 5
.
Troubleshooting and diagnostics
39