Rep Re p a r a n d o F a l l a s e n l a Fu Fuee n t e d e A l i m e n t a c i ó n
Editorial Di$ec Di$ec&"$ &"$ I0. H14# H14#%+1 %+1 D. "#' "#' ,1 P$"d'c P$"d'cci-! ci-! J15> J15> M#4?# M#4?# N+''5 N+''5 (G4721 Q7#4- SRL) a'&"$: "#4+15 (8'4 E&+614+#) Selecci-! * C""$di!ci-!: I0. H14#%+1 D#0+' "#',1 EDito EDito RiaL QUaRK S.R.L. P" !ie P" !ie$a $a"ia "ia de l# de"e de "ech# ch# en ca#$e ca#$ella llan n de la !%bli !%blica ca-ci&n men#%al men#%al Sa bER Sa bER ELECtR" ELEC tR" ni niCa Ca - San Rica"d 2072 (1273) - Ca !i Ca !i$al $al Fede Fede"al "al - B%en# Ai"e# A"gen$ina - T.E. 4301-8804 adi adi!i% !i%&$ &$ci-! ci-! * N" N"ci"% ci"% '4' '4'5# 5# C. J#4# J#4# (G4 Q#4 SRL) P#64+%+# R+8'4 R+8'4 (SISA SA &' C") M#4#4+6# R+8'4 R+8'4 (SISA SA &' C")
S&ff L++## '4'5# "#', M#4+'# "#', D+' "#', L+5 A$'46 C#564 R'##& (SISA SA &' C") J5> L+5 P#4'&'5 F4'5 (SISA SA &' C") Si%& Si%&%: %: P## P## M#4+# M#4+## # "+ "+ rd * C"#' C"#'& &d" d"$%: $%: R#B R/' R/'4 4 Vid" * a!ici"!%: F'4#& F'4=&'< l l%: %: F'4# F'4#& & F4'5 F4'5 C"!& C"!&d' d'$,: $,: F'4# F'4#& & D%#%* D%#%* T+c!ic * D%$$"" d P$"&"&i#"%: A4'& A4/#& F4'5 a&!ci-! a&!ci-! Ci!& Ci!& A' ,#&4 ,#&4 "#' "#' , #6'%+' #6'%+'@9' @9'$' $''% '%64 64+ +%# %#.% .%/.#4 /.#4 I!&$ I!&$!&: !&: (((.( (((.( c c&$" &$"!i !ic c.c" .c".) .) P'icidd: R##' M4#'5 4##/4#'5@9'$''%64+%#.%/.#4 C' Se: g$'#" Q'$k Srl +5'+<#/@9' +5'+<#/@9'$' $''% '%64 64+ +%# %#.% .%/.#4 /.#4 edi&" edi&"$i $i Q'$k Srl S# R+%#4& 2072 (1273) - C#+ C#+6# 6# F'&' F'&'4# 4# 999.9' 999.9'$' $''% '%64 64+ +%# %#.% .%/.#4 /.#4
L# E&+61 E&+614+# 4+# 01 5' 4'5210 4'5 2105# 5#$+ $+++<# <# 214 ' %106' %10 6'0+ 0+&1 &1 &' #5 016#5 016#5 (+4# (+4#. . 1&15 1&15 15 241&7% 241&7%615 615 1 #4%#5 #4%#5 37' 5' '0%+1 '0%+10#0 0#0 510 # 15 '('%615 '('% 615 &' 24'56#4 24'56#4 70 5'48+ 5'48+%+1 %+1 # '%614, '% 614, ; 01 '064# '064#@#0 @#0 4'5210 4'52105# 5#$+ $+++& & &' 07'564# 07'564# 2#46'. 2#46'. E56= E56= 241*+ 241*+$+ $+ # 4'241 4' 241&7% &7%%+A0 %+A0 616# 616# 1 2#4%+# 2#4%+# &' #6' # 6'4+# 4+# %106' %106'0+ 0+&1 &1 '0 '56# '56# 4'8+5 4'8+56#, 6#, #5? %1%1 1 # +0&75 +0&7564+# 64+#++<# <#%+A0 %+A0 ;/1 %1'4 %1'4%+# %+#++<# <#%+A0 %+A0 &' 15 #2#4# #2#4#615 615 1 +&'#5 37' #2#4' #2#4'%'0 %'0 '0 15 '0%+1 '0%+10# 0#&15 &15 6'615, 6'615, $# 1 $# 1 2'0# 2'0# &' 5#0%+1 5#0%+10'5 0'5 ')# ')#'5, '5, 5#81 5#81 ''&+#06' &+#06' #761 #7614+4+<# <#%+A0 %+A0 214 '5%4+ '5%4+61 61 &' # E&+61 E&+ 614+#. 4+#. I24'5+A0: #'4'5 B#$+'%# - M>+%1
Del Edt l Lect E0 15 B6+/15 #@15 &'&+%#/15 8#4+15 61/15 &' # %1'%%+0 C7$ S#$'4 E'%640+%# # 15 6''8+514'5 &' 2#06## 2#0# &' &+('4'06'5 6'%011)?#5: 2#5/#, LCD, LED, S/#46", 3D, '6%. #/$+>0 27$+%#/15 +0(14/'5 &' 4'2#4#%+0 ; )7?#5 &' (##5 ; 517%+10'5. C1/1 5+'/24' *# 1%744+&1 '0 07'5641 5'%614, # (#6# &' +0(14/#%+0 '5 70# $#44'4# /7; &+(?%+ &' 51$4'2#5#4 # # *14# &' 6'0'4 7' 4'#+<#4 4'2#4#%+10'5 ; ' 6>%0+%1 &'$' %108'46+45' '0 70 8'4&'41 /##$#4+56# 2#4# 21&'4 517%+10#4 #)7015 241$'/#5. A6'061 # '561, ; %1/1 %106#/15 %10 /#07#'5 /#07#'5 &' 5'48+%+1 &' 15 24+0%+2#'5 '7+215 8'0&+&15 '0 A/>4+%# A/>4+%# L#6+0# &' #5 /#4%#5 ?&'4'5, '#$14#/15 70# $#56# $+$+16'%# 7' ' '%614 27'&' %10576#4 '0 07'564# 9'$. A&'/=5, #2418'%*#0&1 # '2'4+'0%+# &' I0). A$'461 H. P+%'401 6#061 '0 # 4'2#4#%+0 &' '7+215 ''%640+%15 %1/1 '0 # '#$14#%+0 &' +0(14/'5 ; 6'615, #5? %1/1 # %1#$14#%+0 &' 8#4+15 6>%0+%15 ; 1641 #7614'5, 24'2#4#/15 70# 5'%%+0 &' +0(14/#%+0, (##5 ; 517%+10'5 '0 6''8+514'5 ; /10+614'5 &' 2#06## 2#0# 7' 27'&' &'5%#4)#4 &'5&' 07'564# 9'$ 5+)7+'0&1 15 2#515 7' '/15 /=5 #$#1. P#4# # '#$14#%+0 &' '56' 61/1 &' %1'%%+0 '')+/15 70 /1&'1 &' # '/24'5# S#0;1, '06'0&+'0&1 7', &' 61&15 /1&15, 61&1 1 '2+%#&1 '5 #2+%#$' # 164#5 /#4%#5 ;# 7' %# %#51 5' '210' &' (14/# %#4# ; '6'05# 2#4# 7' ' 6>%0+%1 27' #2+%#4 15 %101%+/+'0615 #&7+4+&15 # 16415 '7+215. E 24'5'06' '5 ' 24+/'41 &' 8#4+15 61/15 7' 24'5'06#0 +0(14/'5 &' (##5 ; 4'2#4#%+0 # /'14 '56+1 &' 7+'0 '5, 5+0 &7, # 2'4510# /=5 4'%101%+ '0 A/>4+%# L#6+0# %7#0&1 &' 5'48+%+1 6>%0+%1 *#$#/15. E52'4#/15 7' '56' /#6'4+# 5'# &' 57 #)4#&1 ; 01 18+&' 7' '0 ' CD 7' #%1/2#@# # '56# 1$4#, ; 7' 27'&' &'5%#4)#4 %10 15 ɧ &15 # %106+07#%+0, 6#/$+>0 '0%1064#4= 16415 61/15 &' '56# %1'%%+0 ; 7' #B0 01 *'/15 27$+%#&1.
obre el CD y Su DeSCarga Sobr !&. 21&4= &'5%#4#4 &' 07'564# 9'$ ' CD: Reprnd cn Sber Elecrónc Pnlls de LCD! 37' LCD! 37' %106+'0' 70 C7451 C1/2'61 51$4' ' 6'/#, +&'15, 2414#/#5 24=%6+%15 ; 4#0 %#06+& &' +014/#%+0 B6+ 2#4# ' >%0+%1 ; ' E567&+#06', %10 70 %1561 &' /'4%#&1 '37+#'06' # 8 '5 #/'4+%#015 ; !&. 1 27'&' &'5%#4#4 GRAIS %10 57 0B/'41 &' 5'4+' 214 5'4 %1/24#&14 &' '56' +$41. P#4# 4'#+<#4 # &'5%#4# &'$'4= +04'5#4 # 07'564# 9'$: (((.(ebelec&$"!ica.c".), 6'0&4= 37' *#%'4 %+% '0 ' ?%101 2#55914& ' +04'5#4 # %#' i!f"&alla% . '0# '56' 6'61 %'4%# 57;1 ;# 37' 5' ' *#4= 70# 24'706# #'#614+# 51$4' ' %106'0+&1 2#4# 37' 27' +0+%+#4 # &'5%#4#.
Servicio Técnico Especializado
1
Rep Re p a r a n d o F a l l a s e n l a Fu Fuee n t e d e A l i m e n t a c i ó n
Editorial Di$ec Di$ec&"$ &"$ I0. H14# H14#%+1 %+1 D. "#' "#' ,1 P$"d'c P$"d'cci-! ci-! J15> J15> M#4?# M#4?# N+''5 N+''5 (G4721 Q7#4- SRL) a'&"$: "#4+15 (8'4 E&+614+#) Selecci-! * C""$di!ci-!: I0. H14#%+1 D#0+' "#',1 EDito EDito RiaL QUaRK S.R.L. P" !ie P" !ie$a $a"ia "ia de l# de"e de "ech# ch# en ca#$e ca#$ella llan n de la !%bli !%blica ca-ci&n men#%al men#%al Sa bER Sa bER ELECtR" ELEC tR" ni niCa Ca - San Rica"d 2072 (1273) - Ca !i Ca !i$al $al Fede Fede"al "al - B%en# Ai"e# A"gen$ina - T.E. 4301-8804 adi adi!i% !i%&$ &$ci-! ci-! * N" N"ci"% ci"% '4' '4'5# 5# C. J#4# J#4# (G4 Q#4 SRL) P#64+%+# R+8'4 R+8'4 (SISA SA &' C") M#4#4+6# R+8'4 R+8'4 (SISA SA &' C")
S&ff L++## '4'5# "#', M#4+'# "#', D+' "#', L+5 A$'46 C#564 R'##& (SISA SA &' C") J5> L+5 P#4'&'5 F4'5 (SISA SA &' C") Si%& Si%&%: %: P## P## M#4+# M#4+## # "+ "+ rd * C"#' C"#'& &d" d"$%: $%: R#B R/' R/'4 4 Vid" * a!ici"!%: F'4#& F'4=&'< l l%: %: F'4# F'4#& & F4'5 F4'5 C"!& C"!&d' d'$,: $,: F'4# F'4#& & D%#%* D%#%* T+c!ic * D%$$"" d P$"&"&i#"%: A4'& A4/#& F4'5 a&!ci-! a&!ci-! Ci!& Ci!& A' ,#&4 ,#&4 "#' "#' , #6'%+' #6'%+'@9' @9'$' $''% '%64 64+ +%# %#.% .%/.#4 /.#4 I!&$ I!&$!&: !&: (((.( (((.( c c&$" &$"!i !ic c.c" .c".) .) P'icidd: R##' M4#'5 4##/4#'5@9'$''%64+%#.%/.#4 C' Se: g$'#" Q'$k Srl +5'+<#/@9' +5'+<#/@9'$' $''% '%64 64+ +%# %#.% .%/.#4 /.#4 edi&" edi&"$i $i Q'$k Srl S# R+%#4& 2072 (1273) - C#+ C#+6# 6# F'&' F'&'4# 4# 999.9' 999.9'$' $''% '%64 64+ +%# %#.% .%/.#4 /.#4
L# E&+61 E&+614+# 4+# 01 5' 4'5210 4'5 2105# 5#$+ $+++<# <# 214 ' %106' %10 6'0+ 0+&1 &1 &' #5 016#5 016#5 (+4# (+4#. . 1&15 1&15 15 241&7% 241&7%615 615 1 #4%#5 #4%#5 37' 5' '0%+1 '0%+10#0 0#0 510 # 15 '('%615 '('% 615 &' 24'56#4 24'56#4 70 5'48+ 5'48+%+1 %+1 # '%614, '% 614, ; 01 '064# '064#@#0 @#0 4'5210 4'52105# 5#$+ $+++& & &' 07'564# 07'564# 2#46'. 2#46'. E56= E56= 241*+ 241*+$+ $+ # 4'241 4' 241&7% &7%%+A0 %+A0 616# 616# 1 2#4%+# 2#4%+# &' #6' # 6'4+# 4+# %106' %106'0+ 0+&1 &1 '0 '56# '56# 4'8+5 4'8+56#, 6#, #5? %1%1 1 # +0&75 +0&7564+# 64+#++<# <#%+A0 %+A0 ;/1 %1'4 %1'4%+# %+#++<# <#%+A0 %+A0 &' 15 #2#4# #2#4#615 615 1 +&'#5 37' #2#4' #2#4'%'0 %'0 '0 15 '0%+1 '0%+10# 0#&15 &15 6'615, 6'615, $# 1 $# 1 2'0# 2'0# &' 5#0%+1 5#0%+10'5 0'5 ')# ')#'5, '5, 5#81 5#81 ''&+#06' &+#06' #761 #7614+4+<# <#%+A0 %+A0 214 '5%4+ '5%4+61 61 &' # E&+61 E&+ 614+#. 4+#. I24'5+A0: #'4'5 B#$+'%# - M>+%1
Del Edt l Lect E0 15 B6+/15 #@15 &'&+%#/15 8#4+15 61/15 &' # %1'%%+0 C7$ S#$'4 E'%640+%# # 15 6''8+514'5 &' 2#06## 2#0# &' &+('4'06'5 6'%011)?#5: 2#5/#, LCD, LED, S/#46", 3D, '6%. #/$+>0 27$+%#/15 +0(14/'5 &' 4'2#4#%+0 ; )7?#5 &' (##5 ; 517%+10'5. C1/1 5+'/24' *# 1%744+&1 '0 07'5641 5'%614, # (#6# &' +0(14/#%+0 '5 70# $#44'4# /7; &+(?%+ &' 51$4'2#5#4 # # *14# &' 6'0'4 7' 4'#+<#4 4'2#4#%+10'5 ; ' 6>%0+%1 &'$' %108'46+45' '0 70 8'4&'41 /##$#4+56# 2#4# 21&'4 517%+10#4 #)7015 241$'/#5. A6'061 # '561, ; %1/1 %106#/15 %10 /#07#'5 /#07#'5 &' 5'48+%+1 &' 15 24+0%+2#'5 '7+215 8'0&+&15 '0 A/>4+%# A/>4+%# L#6+0# &' #5 /#4%#5 ?&'4'5, '#$14#/15 70# $#56# $+$+16'%# 7' ' '%614 27'&' %10576#4 '0 07'564# 9'$. A&'/=5, #2418'%*#0&1 # '2'4+'0%+# &' I0). A$'461 H. P+%'401 6#061 '0 # 4'2#4#%+0 &' '7+215 ''%640+%15 %1/1 '0 # '#$14#%+0 &' +0(14/'5 ; 6'615, #5? %1/1 # %1#$14#%+0 &' 8#4+15 6>%0+%15 ; 1641 #7614'5, 24'2#4#/15 70# 5'%%+0 &' +0(14/#%+0, (##5 ; 517%+10'5 '0 6''8+514'5 ; /10+614'5 &' 2#06## 2#0# 7' 27'&' &'5%#4)#4 &'5&' 07'564# 9'$ 5+)7+'0&1 15 2#515 7' '/15 /=5 #$#1. P#4# # '#$14#%+0 &' '56' 61/1 &' %1'%%+0 '')+/15 70 /1&'1 &' # '/24'5# S#0;1, '06'0&+'0&1 7', &' 61&15 /1&15, 61&1 1 '2+%#&1 '5 #2+%#$' # 164#5 /#4%#5 ;# 7' %# %#51 5' '210' &' (14/# %#4# ; '6'05# 2#4# 7' ' 6>%0+%1 27' #2+%#4 15 %101%+/+'0615 #&7+4+&15 # 16415 '7+215. E 24'5'06' '5 ' 24+/'41 &' 8#4+15 61/15 7' 24'5'06#0 +0(14/'5 &' (##5 ; 4'2#4#%+0 # /'14 '56+1 &' 7+'0 '5, 5+0 &7, # 2'4510# /=5 4'%101%+ '0 A/>4+%# L#6+0# %7#0&1 &' 5'48+%+1 6>%0+%1 *#$#/15. E52'4#/15 7' '56' /#6'4+# 5'# &' 57 #)4#&1 ; 01 18+&' 7' '0 ' CD 7' #%1/2#@# # '56# 1$4#, ; 7' 27'&' &'5%#4)#4 %10 15 ɧ &15 # %106+07#%+0, 6#/$+>0 '0%1064#4= 16415 61/15 &' '56# %1'%%+0 ; 7' #B0 01 *'/15 27$+%#&1.
obre el CD y Su DeSCarga Sobr !&. 21&4= &'5%#4#4 &' 07'564# 9'$ ' CD: Reprnd cn Sber Elecrónc Pnlls de LCD! 37' LCD! 37' %106+'0' 70 C7451 C1/2'61 51$4' ' 6'/#, +&'15, 2414#/#5 24=%6+%15 ; 4#0 %#06+& &' +014/#%+0 B6+ 2#4# ' >%0+%1 ; ' E567&+#06', %10 70 %1561 &' /'4%#&1 '37+#'06' # 8 '5 #/'4+%#015 ; !&. 1 27'&' &'5%#4#4 GRAIS %10 57 0B/'41 &' 5'4+' 214 5'4 %1/24#&14 &' '56' +$41. P#4# 4'#+<#4 # &'5%#4# &'$'4= +04'5#4 # 07'564# 9'$: (((.(ebelec&$"!ica.c".), 6'0&4= 37' *#%'4 %+% '0 ' ?%101 2#55914& ' +04'5#4 # %#' i!f"&alla% . '0# '56' 6'61 %'4%# 57;1 ;# 37' 5' ' *#4= 70# 24'706# #'#614+# 51$4' ' %106'0+&1 2#4# 37' 27' +0+%+#4 # &'5%#4#.
Servicio Técnico Especializado
1
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Sumario uncionami amient ento o y RepaR epaRac ació ión n de un una a Fuente conmutada . . . . . . . . . . . . . . . . .3 Funcion I''@ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 L% ''@ !@ !@ % F N R+%% . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 F'% P%''% . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 E C' A% . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 .11 R%= D A% < + ! . . . . . . . . . . . . . . . . . . . . . . . .12 .12 L% C%+% ' L>%% I'%' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 L MOF B%% C%%'% C% . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 C' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
uncionami amient ento o y RepaR epaRac ació ión n de un una a Fuente LLc (Resonante) . . . . . . . . . . .15 Funcion .15 I''@ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 P&% C% % F B%'/-L+, % . . . . . . . . . . . . . . . . . . . . . . . . .17 F'% % F LLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 L% F LLC !# %< LCD32$H4(N5A#) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 E C' I+% L6599 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 R%%' % ''@ LLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 M'@ MOF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 C' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
FaLLa LLas y soLuciones comen oment tad adas as en La pLaca Lógica de
un
tV de Lcd . . . . . . . . . . .33
I''@ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 D%+%% B < F'% . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 F%% !# ' FFLI8531 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 E M ' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 "% F%% I%%: L% E%% HDMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 .40 E C' D#I C A' HDMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42 A'% !% !% . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 E C' HDMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
uncionami amient ento o y RepaRa epaRació ción n deL ciRcuito inVeRteR . . . . . . . . . . . . . . . . . . . .49 Funcion I''@ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 C' < C;@ I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 E I < MOF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52 C' E;'%'@ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 C@ P&% C' I+% I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 C !& . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 C' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61 A?': E !%*% I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
uncionami amient ento o y RepaR epaRac ació ión n de La pan ant taLLa aLLa de un tV de Lcd . . . . . . . . . . .65 Funcion .65 I''@ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65 L% F% < C% % P%%% LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65 .65 F%% % P%%% LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69 F%% M%% % P%%% . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71 L% P%% L#D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72 M% . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73 C' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
2
Servicio Técnico Especializado
Rep Re p a r a n d o F a l l a s e n l a F! F!ee n e d e A l i m e n a c i " n
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28
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30
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Reparando Fallas en la Placa Lógica
F allas y soluciones comentadas en la
Placa lógica de un tV de lcd E1 67% 175+% 9%06 %1%/<%5 81 5&/0% 659' 1 / '5'87 17+5% +7%/ / " S%1; 0/ 32#H4 (9<<1). S 75%7% 81 /6 17+5%6 0=6 0516 67176 1 / 05'% ; 08; 87/<% 5 75%6 0%5'%6 "6. E/ 8 1 6 0%+1 1 61 ; 8& 8 5%/<%5 81 %01 %8679 /% /%'% /+'% %5% 1'175%5 /% *%//%. EQ!IPO: " SAN$O LCD-32#H4 FALLA: P%17%//% 1+5%, 61 61.
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S)59-'-2 >'1-'2 E63)'-%/-<%(2
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con FFlI8531
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Lcd
F+% 5 - E%(% %/ 0( )9'). @ = << @?, @J > @?<@ @<.
el modo serVIce $? ?? << @? @L< @ ?>? <?< ?<< @? <@ @@ =@<@: 1) "=> =?, ;@>,= ME'N > ;@>,=> ,?=,> &. 2) "=> , ?, @=, 1 ?= =?. A=?? =>K = @=?=@ << < ? 5. A @ @<? J ?? ?< <<@ <@ =?@<@. $? < @< =??< ?L = = ?< + P <?< ?<<. ? ? 6. < ? @ @ 1 ?@=< =?? < @<< A; '$A"; '"'&C; '$A!; CBB&1 "'&C; . =<@? =?<= > @ << I ". E
< @?=L @ = <?? @<? @?=L =??< ??. E@ ? > ? = = < <@ ?@@ <. C< @<< =??< ? D <?< > ?@=< M?< < Q R . & < @ @J, =< @ M?< =? ? @ @ @<<L =?<. E ? 7 ?@?<@ =? ?@=<. $ ?G<@ @=< < =<<@ ?=?<? <=, > =<? <?? L > <<@ <G< @ > = @?? @ I?. "<: < =??<@ ? <@ @ @=<@ => @ = =?<? <<@ > < =? =<@? ?@? << @? =? @ ?L. E@ @ ? =?< =?<?L < <=< = ?. =?<? < @ ?@? =??<@ ?<@ =<< =. E @ <@ <@ @ @ <?< = ?<=?<@ < CI FI8531 ?@ IICB&. '<<@ <@ <@ ?<@ @<
F+% 6 - C%0& ()/ (/%; ) %%//%.
38
S)59-'-2 >'1-'2 E63)'-%/-<%(2