Indicator  Meaning 
î8î  Standby 
status
 
 
Green: 
The  computer  is  in  standby  mode. 
Blinking  green: 
The  computer  is  entering  standby  mode  or 
hibernation  mode,  or  is  resuming  normal 
operation. 
î9î  Ultrabay 
Enhanced 
status 
Green: 
An  Ultrabay  Enhanced  device  is  installed 
and  in  use. 
Blinking  green: 
An  Ultrabay  Enhanced  device  is  in  the 
process  of  being  detached. 
Turn  off: 
An  Ultrabay  Enhanced  device  is  ready  to 
be  attached  or  detached.
 
 
 
FRU  tests 
The  following  table  shows  the  test  for  each  FRU. 
 
FRU  Applicable  test 
System  board  1.  Diagnostics  -->  CPU/Coprocessor 
2.  Diagnostics  -->  Systemboard 
3.  If  the  docking  station  or  the  port  replicator 
is  attached  to  the  ThinkPad  computer, 
undock  it.  Place  the  computer  on  a 
horizontal  surface,  and  run  Diagnostics  --> 
Other  Devices  -->  IBM  HDD  Active 
Protection  Test. 
Note:  Do  not  apply  any  physical  shock  to 
the  computer  while  the  test  is  running. 
Power  Diagnostics  -->  Other  Devices  -->  IBM  AC 
Adapter,  IBM  Battery  1  (IBM  Battery  2) 
LCD  unit 
1.  Diagnostics  -->  Video  Adapter 
2.  Interactive  Tests  -->  Video 
Modem 
daughter  card 
(MDC  or 
BMDC) 
1.  Make  sure  the  modem  is  set  up  correctly. 
2.  Replace  the  modem  jack  and  the  modem 
card  in  turn,  and  run  the  following  tests  in 
Diagnostics  -->  Communication: 
a.  Lucent  Soft  Modem  Loopback 
b.  Lucent  Soft  Modem  Dialtone 
c.  Conexant  Smart  Modem  Interrupt 
d.  Conexant  Smart  Modem  Dialtone 
Audio  1.  Interactive  Tests  -->  Internal  Speaker 
2.  Diagnostics  -->  Other  Devices  -->  Analog 
Devices  AC97  CODEC  Test 
Speaker  Interactive  Tests  -->  Internal  Speaker
 
(continued) 
Product  overview  
50  R50/R50p,  R51  Series