I began watching the Oscars and suddenly noticed that my viewing area did not bleed to the edge--there seems to be a black border around the screen. I thought it might be my cable signal, but the same thing occurs when I play a DVD. What can I do?
This symptom is caused by a poor regulation in the power supply circuit. too low dc supply voltage will result to insufficient deflection, both vertically and horizontally. black borders appear around the raster. receivers generally use regulator in the main power supply to set the dc supply voltage at the value that will allow the picture to fill the screen with a little overscan. defective regulator can result in a small raster. most modern receivers today are using ic (integrated cirduit) regulator. but if you are not inclined with this kind of job, better bring it to a qualified tv technician. good luck!
Posted on Feb 27, 2007
May 05, 2012 | Televison & Video
Mar 04, 2010 | Toshiba 40RV525U 40 in. LCD TV
Oct 18, 2009 | LG 50PS60 50 in. Plasma HDTV
Nov 04, 2008 | LG 37LC7D 37 in. LCD HDTV
Jul 29, 2008 | Sony FD Trinitron WEGA KV-20FS120 20" TV
Jun 05, 2008 | Samsung HP-R4252 42 in. Plasma HDTV
Nov 08, 2007 | Samsung TXF2899 28" TV
Aug 16, 2007 | Hitachi 51F510 51" Rear Projection...
Oct 11, 2006 | Mitsubishi CS-40507 40" TV
193 people viewed this question
Usually answered in minutes!
viewing area did not bleed to the edge--there seems to be a black border around the screen
×