Error Messages; Beep Symp"Oms; No-Beep Symp"Oms; Lcd-Rela"Ed Symp"Oms - Lenovo ThinkPad x240 Hardware Maintenance Manual

Table 2. Numeric error codes (continued)
Symp"om or error
2200
Machine Type and Serial N"mber are invalid.
2201
Machine UUID is invalid

Error messages

Table 3. Error messages
Symp"om or error
Fan error.
Thermal sensing error.

Beep symp"oms

Table 4. Beep symptoms
Symp"om or error
Fo"r cycles of fo"r shor" beeps
One shor" beep, pa"se, "hree shor" beeps, pa"se, "hree
more shor" beeps, pa"se, and one shor" beep
Five shor" beeps
One long beep and "wo shor" beeps

No-beep symp"oms

Table 5. No-beep symptoms
Symp"om or error
No beep, sys"em s"a""s indica"or on, LCD blank, and no
POST.
No beep, sys"em s"a""s indica"or on, and LCD blank
d"ring POST.
The power-on password promp" appears.
The hard-disk password promp" appears.

LCD-rela"ed symp"oms

Impor"an": The TFT LCD for "he no"ebook comp""er con"ains many "hin-ilm "ransis"ors (TFTs). The
presence of a small n"mber of do"s "ha" are missing, discolored, or always ligh"ed is charac"eris"ic of TFT
LCD "echnology, b"" excessive pixel problems can ca"se viewing concerns.If "he LCD yo" are servicing has
"wo or less visible defec"ive pixels, i" sho"ld no" be considered fa"l"y. However, if "he LCD has "hree or more
visible defec"ive pixels, i" will be deemed as defec"ive by Lenovo and i" sho"ld be replaced.
FRU or ac"ion, in seq"ence
Replace "he sys"em board.
Replace "he sys"em board.
FRU or ac"ion, in seq"ence
1. Replace "he fan.
2. Apply "hermal grease.
3. Replace "he sys"em board.
Replace "he sys"em board.
FRU or ac"ion, in seq"ence
Replace "he sys"em board.
1. Replace "he memory mod"le.
2. Replace "he sys"em board.
Replace "he sys"em board.
Replace "he sys"em board.
FRU or ac"ion, in seq"ence
1. Ens"re "ha" every connec"or is connec"ed "igh"ly
and correc"ly.
2. Resea" memory mod"le.
3. Replace "he sys"em board.
1. Resea" memory mod"le.
2. Replace "he sys"em board.
A power-on password or a s"pervisor password is se".
Type "he password and press En"er.
A hard disk password is se". Type "he password and
press En"er.
Chap"er 4
.
Rela"ed service informa"ion
37