Question about Televison & Video
If they " REPAIRED " the ysus board versus relacing it- then yes. It;'s some times called a domino effect. the "CIRCUIT BOARD " is "wave soldered " that means most " SURFACE MOUNT COMPONENTS " were " PLACED " by machine then soldered to board with a conveyer belt through molten solder. Over time these connections may weaken and " intermittently " open up. The process of being removed and shipped may have exascerbated any original issue. You can check for these defects with a magnifying glass or jewelers loupe. Any " LEAD "soldered through the board will be soldered on both sides-and will need to be checke for circular ring shaped cracks near the surface, cold solder joints at the surface mount level," PICK AND PLACE MANUFACTURING " may be checked for hairline cracks in silver " CIRCUIT TRACE " nearest the edge of the soldered " SURFACE MOUNTED COMPONENT " good luck. Prodzilla
Posted on Apr 07, 2011
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Posted on Jan 02, 2017
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Aug 31, 2013 | Spectroniq PLTV-42HW68 42 in. LCD TV
32/42/47/52LG70, 42/47LGX, 47LG90,
50/60PG60, 50/60PG70: To get the the best
picture quality, adjust the PC graphics card to
Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
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