Lenovo ThinkPad 380ED TP 380Z Hardware Maintenance Manual (August 1998) for us - Page 30

Beep Symptoms

Get Lenovo ThinkPad 380ED PDF manuals and user guides View all Lenovo ThinkPad 380ED manuals
Add to My Manuals
Save this manual to your list of manuals

Page 30 highlights

Beep Symptoms Symptom / Error Continuous beeps. One beep and a blank, unreadable, or flashing LCD. One beep, and the message "Unable to access boot source" appears. One long and two short beeps, and a blank or an unreadable LCD. One long beep followed by four short beeps each time the Power switch is operated. (System cannot turn on due to low battery voltage.) One beep every second. (System is shutting down due to low battery voltage.) Two short beeps with error codes. Two short beeps and a blank screen. FRU / Action in Sequence System board 1. Reseat the LCD connector 2. LCD assembly 3. System board 1. Boot device 2. System board 1. System board 2. LCD assembly Connect the AC Adapter or install a fully charged battery. Connect the AC Adapter or install a fully charged battery. (Allow the system to completely shut down before changing the battery.) POST error. See "Numeric Error Codes" on page 23. System board No Beep Symptoms Symptom / Error No beep, power-on indicator not on, and a blank LCD during POST. No beep, power-on indicator on, and a blank LCD during POST. No beep, power-on indicator on, and a blinking cursor only during POST. No beep during POST but the system runs correctly. FRU / Action in Sequence 1. Go to "Power Systems Checkout" on page 13. 2. DC/DC card 3. System board 4. CPU card 5. Check the power outlet 1. DC/DC card 2. System board 3. CPU card 1. DC/DC card 2. CPU card 3. System board 1. Turn the volume up and check the speaker. 2. Speaker 3. System board 28

  • 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
Beep Symptoms
No Beep Symptoms
Symptom / Error
FRU / Action in Sequence
Continuous beeps.
System board
One beep and a blank,
unreadable, or flashing
LCD.
1.
Reseat the LCD
connector
2.
LCD assembly
3.
System board
One beep, and the message
“Unable to access boot
source” appears.
1.
Boot device
2.
System board
One long and two short
beeps, and a blank or an
unreadable LCD.
1.
System board
2.
LCD assembly
One long beep followed by
four short beeps each time
the Power switch is
operated.
(System cannot turn on due
to low battery voltage.)
Connect the AC Adapter
or install a fully charged
battery.
One beep every second.
(System is shutting down
due to low battery voltage.)
Connect the AC Adapter
or install a fully charged
battery. (Allow the
system to completely shut
down before changing the
battery.)
Two short beeps with error
codes.
POST error.
See
“Numeric Error Codes” on
page 23.
Two short beeps and a
blank screen.
System board
Symptom / Error
FRU / Action in Sequence
No beep, power-on indicator
not on, and a blank LCD
during POST.
1.
Go to “Power
Systems Checkout”
on page
13.
2.
DC/DC card
3.
System board
4.
CPU card
5.
Check the power outlet
No beep, power-on indicator
on, and a blank LCD during
POST.
1.
DC/DC card
2.
System board
3.
CPU card
No beep, power-on indicator
on, and a blinking cursor
only during POST.
1.
DC/DC card
2.
CPU card
3.
System board
No beep during POST but
the system runs correctly.
1.
Turn the volume up
and check the
speaker.
2.
Speaker
3.
System board
28