Question about Sony Televison & Video
Ihave sony model kv21gmr1 whe i power on picture and sound ok but after a minute the picture goes dark and dark until you cannot see anything but the sound is ok and the osd display is ok i check the supply for abl section supply is good and screen g2 is also good plsssssss can u help me with my problem. thanks a lot
Warning: The following procedures should be done by an expert.
1.First step is to check the physical condition of the set.Before starting troubleshooting try to resolder the board and find any cold or loss solder.Then after plug the set and see if the filament of the tube glows.If not the trouble is in heater circuit.
2.After seeing the filament if it glows, check the CRT socket and open it.If you can see a sign of terminal decay such as greenish unwanted element on terminal surface,replace the CRT socket.
3.If replacement does remedy the problem check RGB drivers and resolder or replace jungle IC.
4.Try also to adjust the screen adjustment found in the flyback transformer.
5.Another possible cause is the vertical IC.Adjust the screen to full and see if their is a white horizontal line on the screen.If so the problem isin vertical circuit.
Posted on Jul 13, 2009
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Aug 08, 2014 | Sony Grand Wega Kds-60a2000 60-inch Sxrd...
Jan 04, 2014 | Vizio VP422HDTV10A 42 inch 720p LCD HDTV
Mar 17, 2012 | Sony Grand WEGA KDF-55XS955 55" Rear...
Jun 02, 2010 | Dynex 32 in. LCD Flat-Panel HDTV
Feb 02, 2010 | Sony Grand WEGA KDF-55WF655 36" Rear...
Jan 25, 2010 | Sony KP-46WT510 46" Rear Projection HDTV
Jul 18, 2009 | Element Electronics FLX2211B 22 in. LCD TV
May 01, 2009 | Sony KDF-E60A20 60 in. LCD HDTV
Aug 17, 2008 | Sony Grand WEGA KF60WE610 60" Rear...
181 people viewed this question
Usually answered in minutes!