Question about JVC AV-27720 27" TV

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The only thing that happens is the red power light is flashing

The television worked fine until four weeks ago. the screen would go to a straight line horizonally across the screen and we would beat on the side to reinstall the picture. one day it got so bad it finally went blank and silent. the red on/off switch still flashes after it has been turned on and won't quit until it is unplugged. please help.

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The Vertical output ic is bad la7832 also has an open resistor in power supply off of pin 7 the ic.
Root cause is probably the zener diode next to the IC itself MTZJ75

Posted on Mar 12, 2009

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