View previous topic :: View next topic |
Author |
Message |
RR4711_2 Guest
|
Posted: Sun Nov 15, 2015 4:45 pm Post subject: Schematic for LG 40UB800v Ultra HD smart TV |
|
|
Had an accident, little child dropped it from shelf. Main fuse blow. Suspect PSU flexed on impact and shorted to chassis.
Can anyone provide a service manual? It's an almost new 4K TV, I would be sad if I have to dump it. |
|
Back to top |
|
|
jts1957
Joined: 24 Nov 2008 Posts: 2476 Location: Far, Far Away
|
Posted: Sun Nov 15, 2015 7:53 pm Post subject: |
|
|
If it dropped hard enough to 'flex' a board, Panel may be problematic. _________________ You're over there, I'm over here. |
|
Back to top |
|
|
RR4711_2 Guest
|
Posted: Sun Nov 15, 2015 8:46 pm Post subject: |
|
|
jts1957 wrote: | If it dropped hard enough to 'flex' a board, Panel may be problematic. |
Panel looks fine as far as I can tell. What I found out so far: pos. pin of filter cap after rectifier must have touched chassis on impact (burn spot on sheet metal). Bridge rectifier fried, 2x 1N5408 fried and a MOSFET of the what I think is the Power Factor correction. I order replacement parts.
PN of Power supply is: LGP40-14UL18
LG P/N EAY63488601
If anyone has Schematic of the PSU I would appreciate.
Also looking for Datasheet of MAP8800 (MagnaChip) and SSC9527S (Sanken). Couldnt find any using google. |
|
Back to top |
|
|
vtech
Joined: 08 May 2006 Posts: 1264 Location: USA
|
Posted: Sun Nov 15, 2015 10:13 pm Post subject: |
|
|
Chances of finding a schematic posted is next to impossible as there are many, many types and versions. Your best bet is to either reverse engineer, buy one available or try using datasheets of components as a guide.
Korean Magnachip and Japanese Sanken(like many other) happen to be somewhat difficult searches.
With Sanken, from past experience, only popular devices are listed and swiftly taken out as new products show up---always look for their selection guide that may or may not be available on their site.
SCC9527S is a version of SCC9522 controller.
Here is a cached copy. Copy and paste address in a browser window.
bbs-static-2.21dianyuan.com/download.php?id=99029
MAP8800 is a power factor corrector. Here is an application;
http://www.how2power.com/newsletters/1210/products/H2PToday1210_products_MagnaChip.pdf |
|
Back to top |
|
|
|
|
|
You can post new topics in this forum You can reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
|
eServiceInfo on FB -
Service Manuals Free Download -
Service Diagrams
Free TV Schematics Download -
HARDW.net -
Pinout Master -
Jabse Service Manual Search -
Jabse.InK -
onTap.bg
SnimkiOt.com -
Poblizo.com : пътешествия
Latest Service Manuals :
Elegance 63 GRUNDIG • 14xs 20xs 21iq 14tve 20tve 21tve 21black • panasonic+th-l32em5d+chassis+km18 panaso • INSTALL NOKIA • travelmate 5000 acer • 02-rm30-parts NOKIA • printed circuit board diagrams LG • 2sc3449 Inchange Semiconductor • 4000DB Akai • 5091-5444EUS HP •
|