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Errors without messages
Symptom or error FRU or action, in sequence
Power-on indicator on, LCD blank, and no
POST.
1. Make sure that every connector is
connected tightly and correctly.
2. DIMM.
3. System board.
Power-on indicator on, and LCD blank
during POST.
1. Reseat DIMM.
2. System board.
The power-on password prompt appears. A power-on password or a supervisor
password is set. Type the password and
press Enter.
The hard-disk password prompt appears. A hard-disk password is set. Type the
password and press Enter.
LCD-related symptoms
Important
The TFT LCD for the notebook computer contains many thin-film transistors
(TFTs). The presence of a small number of dots that are missing, discolored,
or always lighted is characteristic of TFT LCD technology, but excessive pixel
problems can cause viewing concerns. The LCD should be replaced if the
number of missing, discolored, or lighted dots in any background is:
v XGA: 8 or more bright dots, 8 or more dark dots, or a total of 9 or more
bright and dark dots.
Note: A bright dot means a pixel is always on (white or color.) A dark dot
means a pixel is always off (black color.)
Symptom or error FRU or action, in sequence
No beep, power-on indicator on, and a
blank LCD during POST.
System board.
v LCD backlight not working.
v LCD too dark.
v LCD brightness cannot be adjusted.
v LCD contrast cannot be adjusted.
1. Reseat the LCD connectors.
2. LCD assembly.
3. System board.
v LCD screen unreadable.
v Characters missing pixels.
v Screen abnormal.
v Wrong color displayed.
1. See important note for “LCD-related
symptoms.”
2. Reseat all LCD connectors.
3. LCD assembly.
4. System board.
Horizontal or vertical lines displayed on
LCD.
LCD assembly.
Symptom-to-FRU index
40 MT 8922
- Lenovo 3000 C200 1
- Hard ware 1
- Maintenance Manual 1
- Contents 5
- MT 8922 6
- Introduction 7
- 2 MT 8922 8
- Using the HMM 9
- Using eSupport 9
- 4 MT 8922 10
- Introduction 5 11
- Safety notices 12
- 6 MT 8922 12
- 8 MT 8922 14
- 10 MT 8922 16
- Safety information 17
- General safety 17
- Electrical safety 17
- 12 MT 8922 18
- Safety inspection guide 19
- Grounding requirements 20
- Laser compliance statement 21
- 16 MT 8922 22
- General descriptions 23
- Read this first 24
- 18 MT 8922 24
- Service Web site 25
- Related service information 26
- 20 MT 8922 26
- Passwords 27
- 22 MT 8922 28
- Power management 29
- Hibernation mode 30
- Checkout guide 31
- Testing the computer 31
- 26 MT 8922 32
- Power system checkout 33
- Checking the battery pack 34
- 30 MT 8922 36
- Product overview 38
- Specifications 38
- Status indicators 40
- FRU tests 41
- Fn key combinations 42
- Symptom-to-FRU index 43
- Numeric error codes 43
- 38 MT 8922 44
- Error messages 45
- Errors without messages 46
- LCD-related symptoms 46
- Intermittent problems 47
- Undetermined problems 47
- FRU replacement notices 48
- Screw notices 48
- Retaining serial numbers 48
- Retaining the UUID 49
- 44 MT 8922 50
- Lenovo 3000 C200 45 51
- 1010 Battery pack 52
- 1030 Hard disk drive 53
- 48 MT 8922 54
- (2.5 kgfcm) 55
- 50 MT 8922 56
- 1070 DIMM slot cover 57
- 1080 DIMM 58
- 1090 Optical drive 59
- 54 MT 8922 60
- 1110 Fan 61
- 1120 Thermal module 62
- Lenovo 3000 C200 57 63
- 1130 CPU 64
- Lenovo 3000 C200 59 65
- 1150 Keyboard 66
- Lenovo 3000 C200 61 67
- 1160 Function board 68
- 1170 LCD unit 69
- 64 MT 8922 70
- (4 kgfcm) 71
- 66 MT 8922 72
- (continued) 73
- 68 MT 8922 74
- 1200 VGA connector card 76
- 1210 LED card 77
- 72 MT 8922 78
- 74 MT 8922 80
- Lenovo 3000 C200 75 81
- 2020 Inverter card 82
- 78 MT 8922 84
- Locations 85
- Front view 85
- Rear view 86
- Bottom view 86
- Parts list 87
- Overall 87
- 82 MT 8922 88
- 84 MT 8922 90
- 86 MT 8922 92
- LCD FRUs 93
- Keyboard 94
- Recovery CDs 95
- Windows XP Home Edition 96
- Corel software CDs 97
- AC adapters 97
- Miscellaneous parts 98
- Common parts list 99
- Power cords 100
- Notices 101
- Trademarks 102
- Part Number: 42T7841 104
- (1P) P/N: 42T7841 104
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