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LG 37LT640H-ZA CHASSIS LD2AF MFL67368112 1206-REV00

TV - SERVICE MANUAL
Type: (PDF)
Size
6.7 MB
Page
61
Category
TV
SERVICE MANUAL
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  • Also known:
    LG CHASSIS LD-2AF 37LT640HZA LD2AF 1206REV00 37 LT 640 HZA LD AF MFL 67368112 1206 REV 00 37LT640H ZA REV00 1206-REV00
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  • See related repair forum topics below. May be help you to repair.
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Relevant TV forum topics:
LG LCD TV szervizszoftver
Üdv! Az Elektronline-on Furmany Kolléga kért némi segítséget a következők letöltésében. Leszedtem, és remélem, senki nem haragszik meg, ha ide is feltöltöm. Forrás, használati leírással: www.elektroda.pl/rtvforum/topic1624580.html A "20LS7D_manual.pdf"-et a doksik közé töltöm fel.
LG 26le3308 doesn't power up
Hi everybody, my first post here.
I've found on this site many information and the service manual about the TV in subject, but I stumbled upon a strange issue.
I repaired the earphone socket (pic attached) that had been stripped away and now the TV doesn't power on, it only gives a short beep when you touch the power on button and nothing happens using the remote. I checked the usual things (audio paths, cracked solderings, damaged tracks, power supply, power rails), but I cannot found what's wrong.
Any idea/clue on what to (double) check this time?

Thanks in advance smiley


GF
 
Resoldered earphone socket
Resoldered earphone socket
Chassis label
Chassis label
 
Board label
Board label
LG 42Pq2000 táp nem indúl
Üdv!

A fenti tv áram alá helyezés után relé kattan a feszek egy pillanatra megjönnek majd leáll. Addig jutottam, hogy a tápban ic701-et melegítve a gép szépen bekapcsol és működik. De a következő ki bekapcsolás után megint tilt. Az ic egy MC80f0708MHF13 mikrovezérlő. Került bele egy új amivel a helyzet még rosszabb. Azzal meg se nyekken. Gondolom ebben van valami program ami az újban nincs. Keresnék ilyen ic-t bontottat vagy felprogramozottat.
A táp száma EAY58349601 EAY459544701
Lg 55Uh615V Power Supply Eax66944001(1.3) elindul majd tilt és ujraindul
Sziasztok belefutottan ebbe a rettenetbe amit eddig kideritettem a táp ic SSC3S921 a táp indul,inditja a pfc-ét felugrik 415v-ra abban a pillanatban leesik a pfc fesz 300v-ra majd ujra és ujra megkisérli az indulást.Ahogy nézem a táp ic adatlapját szerintem sok a 415v igy overload majd reset és kezdi ujból.Sajnos rajzot nem igazán találok róla a pfc ic-én olvashatatlan a tipus.8pin-es de hogy mi az rejtély.Valakinek nincs-e tippje mi lehet? A szitázás szerint a mainra 13,2v menne de csak 8v körül tudok mérni,ugyanakkor a led drájver fesz 360v van.A trafó ugyan az(egy trafós) az ssc kapcsolná készenlétből üzemire+a pfc-is ő inditja ezt meg is teszi.Ezért gyanakodok a pfc körre.
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