IBM Thinkpad 710t 2523 Manual

							@@@ @
@
Ô–„…“@ Õôõ@ ŧ—“–„…„@ 剅¦
21
11
2010
1
2
3
4
5
6
7
8
9
22
13
23
14
24
15
25
16
26
17
27
18
18
28
19
29
12
@ @ Ô–„…“@ ÕôõâÓ@ Mòöñô]öù 
						

							@@@@
@
@ 
@ ⨢£…” 
@.ñ/@   Ö••…ƒ£–™
@.ò/@  Ö••…ƒ£–™
@.ó/@  Ö••…ƒ£–™
@.ô/@ Ô…”–™¨@   Ö••…ƒ£–™
@.õ/@  Ä…¥‰ƒ…@ Ö••…ƒ£–™
@.ö/@  ĉ¢’@ Ä™‰¥…@ Ö••…ƒ£–™
@.÷/@ ĉ¢’…££…@ Ä™‰¥…@ Ö••…ƒ£–™
@.ø/@  Ó‰‡ˆ£@  Ö••…ƒ£–™
@.ù/@  Ö••…ƒ£–™¢
.ñð/@ ÓÃÄ@ Ö••…ƒ£–™
.ññ/@ Ô–„…”@ Ö••…ƒ£–™@ 
ÄÃ@ £–@ ÄÃ@  Mã–—]
.ñò/@ ÁÃ@  Ö••…ƒ£–™
.ñó/@   Ö••…ƒ£–™
.ñô/@   Ö••…ƒ£–™
.ñõ/@    Ö••…ƒ£–™
ÄÃ@ £–@ ÄÃ@  M–££–”]
.ñö/@ ⨢£…”@  Ö••…ƒ£–™
÷ðÉÂÔ@ Ô–‚‰“…@ ⨢£…”¢@ ÈÔÔ@ `@ å–“¤”…@ ñ@ @ 
						

							@@@ @
@
@  Ó‰¢£‰•‡
1
2
3
4
5
6
7
8
9
10
11 12 13 14 15 16
@ @ Ô–„…“@ ÕôõâÓ@ Mòöñô]÷ñ 
						

							@@@@
@
⨢£…”@ 䕉£
ÄÁâÄ@
Ö—£‰–•¢@  
É•„…§
@ñã–—@  Á¢¢…”‚“¨@ ùòÆøøõø
Æ™…•ƒˆ@ ùòÆøøóù
 ùòÆøøó÷
 ùòÆøøôõ
 ùòÆøøóø
äKÒK@ Å•‡“‰¢ˆ@ ùòÆøøóö
äKâK@ Å•‡“‰¢ˆ@ ùòÆøøóõ
@ó×–¦…™@ Ö™„k@ äâ öùõòóðñ
@ó×–¦…™@ Ö™„k@ äÒ ñôÆððóó
@ó×–¦…™@ Ö™„k@  ñôÆððõñ
@ó×–¦…™@ Ö™„k@ Ť™–—…@ ñóÆùù÷ù
@÷⨢£…”@  ùòÆøøò÷
@ø×âaò@ Ô–¤¢…@  ùòÆøøóó
@ù–££–”@ Ö¥…™@ Á¢¢…”‚“¨@ ùòÆøøñù
ñð  Ö¥…™ ùòÆøøòõ
@ MÓ…†£a™‰‡ˆ£@ ÓÃÄ@ ˆ‰•‡…@ ƒ–¥…™¢k@ ”…”–™¨
@  ƒ–¥…™k@ ”…”–™¨@ ƒ–¥…™k@ ”–„…”@ „––™
@ „––™k@ ƒ–—™–ƒ…¢¢–™@ „––™k@  ÉaÖ@ ƒ–¥…™k
@ ”–„…”@ ƒ–¥…™@ —“¤‡k@ ”–„…”@ „––™k@ ƒ–—™–ƒ…¢¢–™
@ „––™k@  “‰„@ ¢¦‰£ƒˆ@ ’•–‚]
  ùòÆøøôð
ñó  ùòÆøøóô
  Á¢¢…”‚“¨ ùòÆøøôñ
ñôÄÃ@ £–@ ÄÃ@ ×ÃÂ@ Á¢¢…”‚“¨ ùòÆøøòð
 óóÇùô÷õ
  ⃙…¦¢ ùòÆøøòô
Mó`òKõ§ô^@ ó`òKõ§ñò^@ ò`òKö§ö@  ó`òKö§ö^
õ`ò§ö@  ó`òKõ§ô^@ ññ`òKõ§ö]
@õĉ¢’…££…@ Ä™‰¥… ùòÆøøòñ
@öøðÔÂ@  ĉ¢’@ Ä™‰¥… ùòÆøøòò
@öñòðÔÂ@  ĉ¢’@ Ä™‰¥… óóÇöóöö
@ôÁÃ@  ùòÆøøóò
Ô–„…”k@ òôðð@ Â×âk@ äâ ùòÆøøôö
ñòÔ–„…”@ È–¤¢‰•‡@ Á¢¢…”‚“¨ ùòÆøøòö
 äâ ùòÆøøùö
 æ–™“„¦‰„… ùòÆöòùó
 ÄÁÁ@  äâ ùòÆøøô÷
 ÄÁÁ@  äÒ ùòÆøøôø
 ÄÁÁ@   ùòÆøøôù
 ÄÁÁ@  Æ™…•ƒˆ ùòÆøøõð
 ÄÁÁ@   ùòÆøøõñ
 ÄÁÁ@   ùòÆøøõò
 ÄÁÁ@   ùòÆøøõó
 ÄÁÁ@   ùòÆøøõô
 ÄÁÁ@  ⦅„‰¢ˆ ùòÆøøõõ
 ÄÁÁ@  ⦉¢¢ ùòÆøøõö
ñö Ô…”–™¨@ Ô–„¤“… ùòÆøøòó
ñõÔ…”–™¨@ Ô–„¤“…@ ⤗—–™£@  –†@ ×aÕ@ ùòÆøøòó]
÷òÉÂÔ@ Ô–‚‰“…@ ⨢£…”¢@ ÈÔÔ@ `@ å–“¤”…@ ñ@ @ 
						

							@@@ @
@
Ô–„…“@ Õõñ@ Møõõñ]
 È…ƒ’–¤£ @ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K ÷ô
Ô…”–™¨ È…ƒ’–¤£ @ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K ÷÷
×–¦…™@ ⨢£…”¢@ È…ƒ’–¤£KKKKKKKKKKK@÷ø
⨔—£–”`£–`ÆÙä É•„…§ @ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K ø÷
Õ¤”…™‰ƒ@ Å™™–™@ Ö„…¢KKKKKKKKKKKKKK@ø÷
Â……— ⨔—£–”¢ @ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K ùñ
 ⨔—£–”¢ @ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K ùñ
ä•„…£…™”‰•…„ ×™–‚“…” @ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K ùô
 â…™¥‰ƒ…@ ×™–ƒ…„¤™…¢KKKKKKKKKKKK@ùõ
È…ƒ’‰•‡@  Ä…¥‰ƒ…¢KKKKKKKKKKK@ùõ
×–¦…™`–•  @ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K ùö
È–¦@ £–@ Ù¤•@ £ˆ…@  KKKKK@ùö
 ĉ¢’@ KKKKKKKKKKKKKKK@ùö
Ù…¢£–™‰•‡@ £ˆ…@ KKKKKKKKKKKKK@ù÷
â…££‰•‡@ ⨢£…”@ KKKKKKKKKK@ù÷
×™–„¤ƒ£@ Ö¥…™¥‰…¦@ MÕõñ@ âç]KKKKKKKKKKKK@ùø
×™–„¤ƒ£@ Ö¥…™¥‰…¦@ MÕõñ@ âÓÃ]KKKKKKKKKKK@ùø
ÆÙä@   KKKKKKKKK@ùù
 @ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K ñðó
 Ó‰¢£‰•‡ @ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K@ K ñðõ
Ò@ Ö—¨™‰‡ˆ£@ ÉÂÔ@ Ö™—K@ ñùùõ@ @
÷ó 
						

							@@@@
@
@  È…ƒ’–¤£
㈅@  £…¢£¢@  ‰•£…•„…„@ £–@ £…¢£@–•“¨@ ÉÂÔ
—™–„¤ƒ£¢K Õ–•`ÉÂÔ@ —™–„¤ƒ£¢k@ —™–£–£¨—…@  –™@ ”–„‰†‰…„
–—£‰–•¢@  ‡‰¥…@  …™™–™¢@   ƒ–”—¤£…™
™…¢—–•¢…¢K
ððñ
ÄÖÅâ@ ãÈÅ@ ×ÙÖÂÓÅÔ@ Á××ÅÁÙ@ ãÖ@ ÂÅ@ Á@ ×ÖæÅÙ
âä××Óè@ ÆÁÉÓäÙÅo
è…¢@ Õ–
ððò
Ç–@ £–@ ⣅—@ ððöK
ððó
ÄÖ@ ÁÓÓ@ âèâãÅÔ`âãÁãäâ@ ÉÕÄÉÃÁãÖÙâ@ ÙÅÔÁÉÕ@ ÖÆÆo
è…¢@ Õ–
ððô
Ç–@ £–@ ⣅—@ ððöK
ððõ
Ç–@ £–@ ½×–¦…™@ ⨢£…”¢@ È…ƒ’–¤£¾@ –•@  ÷øK
ððö
 ×–¦…™`–††@ £ˆ…@ ƒ–”—¤£…™@    „…¥‰ƒ…¢K
 È…ƒ’@    —–¦…™@ ƒ–™„¢K
  ¢¤™…@ •–@ „‰¢’…££…@ ‰¢@ ‰•@ £ˆ…@ „™‰¥…K
 ×–¦…™`–•@   „…¥‰ƒ…¢K
 ×–¦…™`–•@ £ˆ…@ ƒ–”—¤£…™@  ƒˆ…ƒ’@ †–™@ £ˆ…@ †–““–¦‰•‡
™…¢—–•¢…¢z
ñK Á““@    –•ƒ…@ †–™@ 
ñ@ ¢…ƒ–•„K
Õ–£…z @â–”…@   –•@  –£ˆ…™¢@ ‡–
–††@  ñ@ ¢…ƒ–•„K
òK Ô…”–™¨@ £…¢£@ M£ˆ…@ •¤”‚…™@ 
óK Ö•…@ –™@ £¦–@ ¢ˆ–™£@ ‚……—¢K
ÄÉÄ@ èÖä@ ÙÅÃÅÉåÅ@ ãÈÅ@ ÙÅâ×ÖÕâÅâ@ ÓÉâãÅÄ@ ÁÂÖåÅo
è…¢@ Õ–
ðð÷
ñK Ɇ@ £ˆ…@ ”…”–™¨@ ƒ–¤•£@ ‰¢@ ‰•ƒ–™™…ƒ£k@ ‡–@ £–@ ½Ô…”–™¨
È…ƒ’–¤£¾@ –•@  ÷÷K
òK Ç–@ £–@ ½â¨”—£–”`£–`ÆÙä@ É•„…§¾@ –•@  ø÷K
Ɇ@  „–…¢@ •–£@ ƒ–™™…ƒ£@ £ˆ…@ —™–‚“…”k@ ‡–@ £–
½ä•„…£…™”‰•…„@ ×™–‚“…”¾@ –•@  ùôK
÷ôÉÂÔ@ Ô–‚‰“…@ ⨢£…”¢@ ÈÔÔ@ `@ å–“¤”…@ ñ@ @ 
						

							@@@ @
@
ððø
 ×™…¢¢@㙓LÁ“£LÄ…“K 戅•@ £ˆ…@ ƒ¤™¢–™@ ”–¥…¢@ £–@ £ˆ…
¤——…™@ ™‰‡ˆ£k@ —™…¢¢@㙓LÁ“£LÉ•¢@ £–@  £ˆ…@ ¢¨¢£…”
 Ɇ@ £ˆ…@ ÉÂÔ@ “–‡–@ ¢ƒ™……•@ „–…¢@ •–£@  ‰•¢…™£
£ˆ…@  Ù…†…™…•ƒ…@ ĉ¢’…££…@ ‰•£–@ £ˆ…@ „‰¢’…££…@ „™‰¥…
  £ˆ‰¢@ ¢£…—K
ñK Ɇ@ ¨–¤@  •–£@  £ˆ…@  Ô…•¤k@ †–““–¦@ £ˆ…
‰•¢£™¤ƒ£‰–•¢@ –•@ £ˆ…@ ¢ƒ™……•@ £–@  £–@ £ˆ…@ 
Ô…•¤K
Ɇ@ ¨–¤@   £–@ £ˆ…@  Ô…•¤k@ ‡–@ £–
½â¨”—£–”`£–`ÆÙä@ É•„…§¾@ –•@  ø÷K
`@ –™@ `
Ɇ@  „–…¢@ •–£@ ƒ–™™…ƒ£@ £ˆ…@ —™–‚“…”k@ ‡–@ £–
½ä•„…£…™”‰•…„@ ×™–‚“…”¾@ –•@  ùôK
Õ–£…¢z
 Ɇ@ £ˆ…@ ƒ–”—¤£…™@   ‰•ƒ–™™…ƒ£@  –™
•¤”…™‰ƒ@  ™…¢—–•¢…k@ ‡–@ £–@ 
 É•—¤£@ Ä…¥‰ƒ…@ È…ƒ’–¤£¾@ –•
 ôöõK
‚K Ɇ@ £ˆ…@ —™‰•£…™@  ‰•ƒ–™™…ƒ£@ ™…¢—–•¢…¢k@ ‡–@ £–
½×™‰•£…™@ È…ƒ’–¤£¾@ –•@  ôöøK
ƒK Ɇ@ £ˆ…@    —™–‚“…”¢@ ¢¤ƒˆ@ 
‘‰££…™‰•‡k@ ™–““‰•‡k@ ¢ˆ‰†£‰•‡k@ –™@ ‚…‰•‡@ –¤£`–†`†–ƒ¤¢k
‡–@ £–@   â…“†`ã…¢£¾@ –•
 ôöôK
òK ×™…¢¢@㙓LÁ@  ™¤•@ £ˆ…@ ¢¨¢£…”@ ƒˆ…ƒ’–¤£K
Éâ@ ãÈÅ@ ÓÉâã@ ÖÆ@ ÉÕâãÁÓÓÅÄ@ ÄÅåÉÃÅâ@ ÃÖÙÙÅÃão
è…¢@ Õ–
ððù
Ç–@ £–@ ½Ãˆ…ƒ’‰•‡@  Ä…¥‰ƒ…¢¾@ –•@  ùõK
ðñð
 Ù¤•@ £ˆ…@  £…¢£¢K
ÄÉÄ@ ãÈÅ@ ãÅâã@ ÉÄÅÕãÉÆè@ Á@ ÆÁÉÓäÙÅo
Õ–£…z @Ɇ@ £ˆ…@ £…¢£@ ¢£–—¢@  ¨–¤@  ƒ–•£‰•¤…k@ 
£ˆ…@  „…¥‰ƒ…@ £…¢£…„K
`@ –™@ `
Ɇ@  ×Öâã@ …™™–™@ ƒ–„…@  ‡–@ £–
½â¨”—£–”`£–`ÆÙä@ É•„…§¾@ –•@  ø÷K
è…¢@ Õ–
ðññ
è–¤@ ”‰‡ˆ£@   ‰•£…™”‰££…•£@ —™–‚“…”z
ŸÃˆ…ƒ’@ †–™@    ƒ–••…ƒ£–™¢K
Ÿ   „™‰¥…¢k@  ”–„¤“…¢K
M⣅—@ ðññ@ ƒ–•£‰•¤…¢]
@ @ Ô–„…“@ Õõñ@ Møõõñ]
÷õ 
						

							@@@ @ MÃÖÕãÉÕäÅÄ] @
@
@ ðññMƒ–•£‰•¤…„]
Ÿ  …™™–™@ “–‡@  ™¤•@ £ˆ…@ £…¢£¢@ ”¤“£‰—“…
£‰”…¢K
ŸÃˆ…ƒ’@ £ˆ…@ —–¦…™@ ¢¤——“¨@ ‰•@ ¤¢…@ ¦ˆ…•@ £ˆ…@ …™™–™
‰¢@ ™…—–™£…„@ M¢……@ ½×–¦…™@ ⨢£…”¢@ È…ƒ’–¤£¾@ –•
 ÷ø]K
ŸÃˆ…ƒ’@ ½â¨”—£–”`£–`ÆÙä@ É•„…§¾@ –•@  ø÷K Ɇ
£ˆ‰¢@ „–…¢@ •–£@ †‰§@ £ˆ…@ —™–‚“…”k@ ‡–@ £–
½ä•„…£…™”‰•…„@ ×™–‚“…”¾@ –•@  ùôK
ðñò
Ç–@ £–@ ½â¨”—£–”`£–`ÆÙä@ É•„…§¾@ –•@  ø÷K
÷öÉÂÔ@ Ô–‚‰“…@ ⨢£…”¢@ ÈÔÔ@ `@ å–“¤”…@ ñ@ @ 
						

							@@@ @
@
@ Ô…”–™¨ È…ƒ’–¤£
䢣–”…™@    „…†…ƒ£‰¥…@ ”…”–™¨@ ¢–
•–@ ”…”–™¨@ …™™–™@ ƒ–„…@   —–¦…™`–•@ ™…¢…£K Á†£…™
¨–¤@   „…†…ƒ£‰¥…@ ”…”–™¨@ ”–„¤“…@ ’‰£k@ ™¤•@õK
 @ –™@ £ˆ…@ •…¦@ ”…”–™¨@ ¦‰““@ •–£@ ‚…
™…ƒ–‡•‰©…„K MɆ@ ¨–¤@  £–@ ™¤•@  ¦‰£ˆ@ ¨–¤™
–¦•@ „‰¢’…££…k@ ‚…@ ¢¤™…@ £ˆ…@ ƒ¤¢£–”…™@   £ˆ…@ ƒ–™™…ƒ£
–—£‰–•@ „‰¢’…££…¢@  ×–¦…™`–††@ £ˆ…@ ƒ–”—¤£…™@ ‚…†–™…
™…”–¥‰•‡@ –™@  
ððñ
 Ù…”–¥…@ £ˆ…@ ”…”–™¨@ ”–„¤“…@ ’‰£@ ‰•@ £ˆ…@ ƒ–••…ƒ£–™@ ‰†

 Ù¤•@ £ˆ…@ ”…”–™¨@ £…¢£¢K
䢅@ £ˆ…@ ÙäÕ@ ãÅâãâ@ ÖÕÅ@ ãÉÔÅ@ –—£‰–•K
ÄÉÄ@ ãÈÅ@ ÔÅÔÖÙè@ ãÅâãâ@ ÅÕÄ@ æÉãÈÖäã@ ÁÕ@ ÅÙÙÖÙo
è…¢@ Õ–
ððò
 £ˆ…@ ¢¨¢£…”@ 
ððó
ÄÉÄ@ èÖä@ ÙÅÔÖåÅ@ ãÈÅ@ ÔÅÔÖÙè@ ÔÖÄäÓÅ@ ÒÉã@ ÉÕ@ ãÈÅ
ÃÖÕÕÅÃãÖÙo
è…¢@ Õ–
ððô
Ç–@ £–@ ⣅—@ ðð÷K
ððõ
  £ˆ…@ ”…”–™¨@ ”–„¤“…@ ’‰£@ ‰•@ £ˆ…@ ƒ–••…ƒ£–™@ 
™¤•@ õK@  K
 Ù¤•@ £ˆ…@ ”…”–™¨@ £…¢£K
䢅@ £ˆ…@ ÙäÕ@ ãÅâãâ@ ÖÕÅ@ ãÉÔÅ@ –—£‰–•K
ÄÉÄ@ ãÈÅ@ ÔÅÔÖÙè@ ãÅâãâ@ ÅÕÄ@ æÉãÈÖäã@ ÁÕ@ ÅÙÙÖÙo
è…¢@ Õ–
ððö
 £ˆ…@ ”…”–™¨@ ”–„¤“…@ ’‰£@ ‰•@ £ˆ…@ ƒ–••…ƒ£–™K
Ɇ@  „–…¢@ •–£@ ƒ–™™…ƒ£@ £ˆ…@ —™–‚“…”k@  £ˆ…
¢¨¢£…”@ 
ðð÷
Ɇ@ £ˆ…@ —™–‚“…”@ –ƒƒ¤™¢@ ‰•£…™”‰££…•£“¨k@ ™¤•@ £ˆ…@ ”…”–™¨@ £…¢£¢
”¤“£‰—“…@ £‰”…¢@ £–@   …™™–™@ “–‡K
@ @ Ô–„…“@ Õõñ@ Møõõñ]÷÷ 
						

							@@@@
@
×–¦…™@ ⨢£…”¢@ È…ƒ’–¤£
@ Õ–£…@
Ö•…@ –™@  –†@ £ˆ…@    ‰†@ £ˆ…™…@ ‰¢@ 
¢ˆ–™£@ ƒ‰™ƒ¤‰£@ ‰•@ £ˆ…@ ƒ–”—¤£…™K
ñK  £ˆ…@  ÆÙä@ ‰†@ £ˆ…@ —–¦…™@ ¢¤——“¨@ —™–‚“…”
‰¢@  ‚¨@  ¢ˆ–™£@ ƒ‰™ƒ¤‰£K
òK Ä…£…™”‰•…@ ‰†@ –•…@ M–™@  –†@ £ˆ…@   ‚…ƒ–”…
     ¦‰£ˆ@ 
’•–¦•`‡––„@ 
㈅@ £…¢£@ —™–ƒ…„¤™…¢@ †–™@  —–¦…™@ ¢¤——“¨@  †–¤•„@ –•
£ˆ…@ †–““–¦‰•‡@ 
½ã…¢£‰•‡@ £ˆ…@ ÁÃ@  –•@  øñK
½ã…¢£‰•‡@ £ˆ…@   –•@  øòK
½ã…¢£‰•‡@ £ˆ…@   –•@  øóK
½ã…¢£‰•‡@ £ˆ…@   –•@  øóK
½ã…¢£‰•‡@ £ˆ…@ ؤ‰ƒ’@  –•@  øôK
½ã…¢£‰•‡@ £ˆ…@    –•@  øõK
½ã…¢£‰•‡@ £ˆ…@  Ö•¥…™£…™¾@ –•@  øõK
Õ–•…@ –†@ £ˆ…@  Æ–““–¦@ £ˆ…@ ¢£…—¢@ ‚…“–¦K
ððñ
ÄÉÄ@ ãÈÅ@ ×ÙÖÂÓÅÔ@ ÖÃÃäÙ@ ÖÕÓè@ æÈÅÕ@ äâÉÕÇ@ ãÈÅ
ÁÃ@ ÁÄÁ×ãÅÙo
è…¢@ Õ–
ððò
Ç–@ £–@ ⣅—@ ððôK
ððó
Ç–@ £–@ ½ã…¢£‰•‡@ £ˆ…@ ÁÃ@  –•@  øñK Ɇ@ ½ã…¢£‰•‡
£ˆ…@ ÁÃ@  „–…¢@ •–£@ ƒ–™™…ƒ£@ £ˆ…@ —™–‚“…”k@  £ˆ…
 ƒ–•¥…™£…™K
ððô
ÄÉÄ@ ãÈÅ@ ×ÙÖÂÓÅÔ@ ÖÃÃäÙ@ ÖÕÓè@ æÈÅÕ@ äâÉÕÇ@ ãÈÅ
ÃÁÙ@ ÂÁããÅÙè@ ÁÄÁ×ãÅÙo
è…¢@ Õ–
ððõ
Ç–@ £–@ ⣅—@ ðð÷K
ððö
Ç–@ £–@ ½ã…¢£‰•‡@ £ˆ…@    –•@  øõK
ðð÷
M⣅—@ ðð÷@ ƒ–•£‰•¤…¢]
÷øÉÂÔ@ Ô–‚‰“…@ ⨢£…”¢@ ÈÔÔ@ `@ å–“¤”…@ ñ@ @