Question about JVC AV-27230 27" TV
Hi, After turning on the tv the audio works but the picture was distorted and then I turned the tv off and back on again. The screen was black with a line across, so i turned the tv off and back on again and the screen is complete black with audio working. Now there is no picture just sound. is it worth repairing
I want to known av-27730 service code
Posted on Dec 17, 2008
There are several causes for loss of vertical deflection ( symptom: horizontal line across the screen) you might also check the electrolytic capacitors adjacent to the vertical ic. (assuming resoldering the vertical ic does not work) Some JVC sets also have a bad zener diode think its D715 part# mtzj75
Posted on Aug 06, 2007
IN THIS SET THE FAILURE IS A COLD SOLDER IN THE VERTICAL OUTPUT HAVE THE SET TO RESOLDER THE VERTICAL OUTPUT WITH A TECHNICIAN.
Posted on Nov 01, 2006
One thing you should not do with electronic devices which have a start up proceedure is to turn the power off, and then on again without a wait of about five minutes. Some equipment manuals warn you about this, and specify a longer period. The start-up has to have time to reset. It will be more likely to reset if you do not leave it on standby, and even unplug it. In your TVs case you need to describe the distorted picture as it may give a clue to a fault, or incorrect start-up. The horizontal line indicates the frame timebase had stopped working. No picture could be a fuse blown inside the set, or a timed cutout which may reset after a time. Try after several hours to see if it comes on. If it is just the frame timebase (vertical) it is worth repairing.
Posted on Oct 23, 2006
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Posted on Jan 02, 2017
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