Question about Proscan PS27125 27" TV

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Intermittent loss of picture

My Proscan TV works fine right after I turn it on, but within about five minutes the picture disappears and is replaced by a horizontal white line acrosss the middle of the screen. The sound is unaffected. within a few minutes the picture may, (or may not!), reappear. This sequence of events is randomly repeated as long as the power is on. I love the set, but can't afford a repair shop's bill. I am good with tools and such, know a bit of electronics, and am perfectly willing to attempt any advanced repair procedure; it's either that or the TV goes unused and uselessly taking up valuable space in my garage. Thanks for any helpful advice.

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You'll have to locate the vertical output IC which should be mounted onto a heatsink, then take out a good magnifier under the printed circuit board and examine the solder connections on the pins of that IC and resolder the ones that are cracked.

Posted on Mar 12, 2007


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Posted on Jan 02, 2017


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