Symptom/Error
FRU/Action in Sequence
No beep, power-on
indicator turns on and
LCD is blank.
Power source (battery and
adapter). See “Power
Systems Check” on page 25.
Reconnect the LCD connector
Charger board
Processor board
Hard disk drive
LCD inverter ID
LCD LVDS board (for
13.3–inch LCD)
LCD FPC cable
Inverter
LCD
System board
LCD backlight doesn't
work.
LCD is too dark.
LCD brightness
cannot be adjusted.
LCD contrast cannot
be adjusted.
Enter BIOS Utility and
execute "Load Setup Default
Settings"; then reboot the
system.
Reconnect the LCD connec-
tors
Keyboard (if contrast and
brightness function keys do
not work)
LCD inverter ID
LCD LVDS board (for
13.3–inch LCD)
LCD FPC cable
LCD inverter
LCD
System board
Unreadable LCD
screen.
Missing pels in char-
acters.
Abnormal screen
Wrong color dis-
played.
Reconnect all LCD connec-
tors
LCD inverter ID
LCD FPC cable
LCD inverter
LCD
System board
LCD has extra hori-
zontal or vertical lines
displayed.
LCD
LCD FPC cable
LCD inverter ID
Inverter
System board
Indicator-Related Symptoms
ThinkPad i Series 1400 (Part I)
41
Summary of Contents for 2611-40A
Page 26: ...18 ThinkPad i Series 1400 HMM ...
Page 104: ...System Unit Parts Listing 96 ThinkPad i Series 1400 HMM ...
Page 107: ...LCD Unit Parts Listing 12 1 LCD Unit Parts Listing ThinkPad i Series 1400 Part I 99 ...
Page 109: ...13 3 LCD Unit Parts Listing ThinkPad i Series 1400 Part I 101 ...
Page 190: ...21 1 21 20 19 18 14 15 16 17 182 ThinkPad i Series 1400 HMM ...
Page 202: ...194 ThinkPad i Series 1400 HMM ...
Page 204: ...IBM Part Number 37L5192 Printed in U S A S1ðL 9952 ð2 ...