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The LA78041 IC has failed. I replaced it twice before I cleaned the high voltage connection to the CRT. It was very cruddy from cigarette smoke. A high voltage discharge to the yoke takes out this IC. They are available for under $4.00 Good luck.
from Lincoln Hubbard at firstname.lastname@example.org
NOTE:(Edited and copied from another thread on Fixya.com, c7carl)
Picture is not centered on monitor leaving a 2 1/2 inch; black border on Philips LCD By dmorrow54 on Nov 13, 2007 Again, nothing in manual for Philips LCD will correct the fact that the picture in HD-D mode will not center. The picture runs off the monitor on the left (facing the monitor) with a 2 1/2" black border on the right (facing the monitor). Using the format button on the remote of directional arrows will not correct the issue. The wide-screen/ full-screen function with format does nothing. Moving into TV mode, the format function works to display screen in several ways 4:3, 19:2, super-zoom, wide-screen, full-screen. Help, please. posted 3 years ago
I have a Philips 30 inch LCD and solved the problem by using the circular arrow button on the TV remote. Pointing it at the TV and clicking "right" (3 o'clock on the button), the picture moved right. Same thing on for "left". Worked for me. Add a comment
5 minutes ago
WOW! It works!! The picture on my Magnavox (aka Philips) 37MF321D had shifted to the right. I figured I had a big repair bill coming up soon. But hey! Just used the TV remote as described by "Guest', and re-centered the picture to the left. Wallah! Thanks ""Guest" whomever you are! Reply
This problem sounds like a short inside the picture tube itself unless a driver transistor failed that drives the red gun in the CRT. You may have to take it to an authorized repair facility if the picture tube is still in warranty.
Your fault is called the North South Geometry and the centre is not amplified as much as the outsides.
This is an adjustment easily carried out by a competent tv engineer.
I would call the company the warranty is with and ask them for a service call under warranty to sort the picture geometry out.