Our 4 year old tvs black has turned blue and occasionally shuts off. if you unplug and turn it back in it will work again, but always blue. Sometimes it will play for hours and sometimes only minutes before needing to be unplugged. also the red power indicator flashes. Help!!!
The set is going into shutdown because the blue picture tube is shorted G1 to cathode. This explains the blue picture and the set goes into shutdown due to the screen shorted. Scrivitron
Posted on Jul 19, 2007
That usually means the x-ray protect circuit was triggered. The set is going into protect shutdown for some reason. It may be a valid trigger to a lame problem or a fault in the detection circuit itself. I would hang a scope on there and just watch to see if there is a strange movement in voltage values, and if so, troubleshoot it from there. The blue picture is a result of a convergence problem. If you don't know much abou TV repair, I would suggest taking it to a Toshiba authorized servicer for proper diagnosis.
Posted on Jan 30, 2006
Dec 22, 2017 | Mitsubishi WD-73827 73" HDTV DLP TV
Oct 29, 2013 | RCA HD52W59 HDTV Projection Television
Oct 20, 2012 | Mtd Garden
Dec 13, 2009 | Sanyo DP32746 32 in. LCD Television
Jan 17, 2009 | Sony KP-57WS500 57" Rear Projection...
Dec 29, 2008 | Samsung PS42P2S 42 in. Plasma Television
Dec 25, 2008 | Sony KP-57WV600 57" Rear Projection...
May 04, 2008 | Hitachi 50UX58B 50" Rear Projection...
Apr 16, 2008 | Sony KV-35V35 TV
Aug 28, 2007 | Samsung HLN617W 61" Rear Projection HDTV
83 people viewed this question
Usually answered in minutes!
×