Question about Emerson Televison & Video
I was looking for a fix for my 3 yr old Emerson Model LF461EM4 A, A 46-inch LCD HDTV with LED backlighting, When I first turn it on (from cold start), everything looks fine, then after approximately a couple minutes, after warming up a bit, the Picture shows 3 distinct horizontal bands, (the bands are not made up of lines, just darker picture)... the top band is very dark, but can see the picture the middle band is a little dark, and the bottom band is just a little lighter than the middle one, and maybe near perfect. Do you have any ideas as to what this could be or where to find out about this problem. (could upload a pic, if you had that option.)
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Posted on Jan 02, 2017
The LG 44SZ21RB Have a problem with their light tunnel collasping due to the heat from the lamp. They are available as a spare part @ LG and would also require some silicon adhesive to bond it into the assembly. Very tedious job for any technican (2-3 hrs). Lg will not release parts to the general public only to an authorised LG agent.
Posted on Apr 23, 2008
there are two convergnece boards in this tv. one is called the convergence (DCU) the other is called the convergence amp board. this amp board has the (STK`S) on it and ids your problem. in most cases we repair this board.
good luck :)
let me know if you need more info?
Posted on Jan 11, 2009
replace the vertical ic, LA 7833 and four capacitors near it, i encountered this last two days.change the parts and it ok now.
cost of this parts is about $20.00
Posted on Jan 24, 2009
YOU MAY HAVE A DEFECTIVE Y DRIVER BOARD OR A RIBBON CABLE THAT HAS COME DISCONNECTED. THIS NOT USUALLY THE PANEL SINCE THE PANEL DOES TURN ON. TAKE IT TO AN AUTHORIZED SERVICER.
Posted on Apr 10, 2009
SOURCE: verticle band of multi color
It can be T-CON board, ribbon cables between the T-CON board and the LCD panel. http://www.scribd.com/doc/25276757/E40951307-TCON-Troubleshooting-10-22-09-OPT
Learn about T-CON board failure here: Please download and look at the sample of bad pictures:
http://www.mediafire.com/?zzjygannjty PDF download
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
Posted on May 20, 2011
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