Sziasztok!
Keresném a köv T-cont:RUNTK 5351TP 0055FV
Jelenség hang van, kép nics, teljesen sötét a kijelző. Előzmény hogy háttérvilágítás sem volt, 2db led cseréje után világít rendesen, de kép továbbra sincs. A T-con megkapja a 12voltot, a segédtápok 1,2v-3,3v-5v-15,6v
VGH 35v, VGL -6v megvannak, gyanítom hogy cserélni kéne...
Hi, my SAMSUNG UE40D5000 tv doesn' t work anymore. The red led light indicating that the tv is plugged is not powered when I plug in the tv. The original power board modem is BN44-00473B. I have checked the voltage on the connector to the mother board of the tv, and it was 0 instead of 5.3V or 13V on the different pins, with the fuse still working and no obvious overheated part on the power board and no bulging capacitor seen neither.
I have then changed the power board with a used one bought on ebay, which model BN44-00473A is said to be compatible. It has then worked perfectly 2 days until yesterday. This morning I had to move a little bit the tv, what I did very gently, and got really disappointed as I plugged it and didn't see the red led light on anymore.
Since this morning, the power board seems to be broken once more ( I have moved from my original flat 1 week ago and don't have a multimeter to check once more that the fuse is ok and what are the voltage on the connector to the mother board )
I am wondering if this new power board failure is just bad luck, 2 days after receiving this other power board circuit ( that is a used unit, not brand new) or if the mother board could have damaged it. In the first case I would send the power board back to the seller, otherwise I will probably give up as I don't have time and skills to repair the tv.
My question is : do you think the mother board or another unit connected to it, can damage the power board ?
Thanks for your help and answers !
A címben említett tv hálózati bekapcsolás után, kb 4-et kattan a relé, majd a led 3 rövidet 1 hosszút villan,és beindul a sorvég. A kép tetején 3 vizszintes RGB csík volt látható, de azt az LA7845-ös körében 2 kondi cseréjével megoldódott.Az R821-es ellánállas megnvúlása miatt cseréltem, inettöl kezdve csak kattog a táprelé,de mostmár nem indul.
Kérem a valaki jártas ennek a típusnak a javításában, megköszönném ha valamit megosztana velem.
Űdvözlettel Ernő!
Sziasztok!
A fenti tápot keresném, villámlátogatás miatt.
Vagy esetleg az 70152 SMD kódú LED driver becsületes nevét.
Köszönöm!
norty