Question about GE 27GT722 27" TV
Model is 27GT271. Shows a band of distortion (scan lines spaced out) about 2" high at about 5/8 down screen, then picture is normal until about 4" from the bottom where distortion re-occurs all the way to the bottom. Occasional, picture snaps back to normal for a brief period. But always eventually reverts to distortion pattern mentioned above.
This is due to vertical section failure. Change the vertical supply rectifier diode and supply filters. Then check zener diode leakage in pumpup circuit section. Also check any electrolytic capacitors leakage in vertical section. If it is old model tv change vertical height, vertical lenearity presets also. I hope given details useful to you.
Posted on Aug 23, 2007
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