User's Manual

Index
135
H
Hard disk drive
Problems....................................53
HDMI port .....................................4, 36
Headphone jack (S/PDIF).................37
Help
Customer support center.......... 56
Help and service .......................55
on the web.................................56
Hibernation mode problems ............. 49
I
Internet............................................... 19
K
Keyboard
Cleaning ....................................83
Problems....................................48
Using ......................................... 11
L
Lenovo Limited Warranty .................92
M
Maintenance.......................................88
Microphone
Built-in.........................................2
External .....................................39
N
Notice
Electronic emissions................120
for US Users ............................131
Numeric Keypad................................11
O
OneKey Rescue System button .....2, 41
Optical drive.......................................16
Y550P UG V1.0_en.book Page 135 Monday, July 13, 2009 11:36 AM