 Posted: Sun Nov 15, 2015 10:13 pm Post subject: |
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| 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 |
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| Posted: Sun Nov 15, 2015 8:46 pm Post subject: |
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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. |
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| Posted: Sun Nov 15, 2015 7:53 pm Post subject: |
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| If it dropped hard enough to 'flex' a board, Panel may be problematic. | |
| Posted: Sun Nov 15, 2015 4:45 pm Post subject: Schematic for LG 40UB800v Ultra HD smart TV |
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| 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. |
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