Question about JVC AV27F476 27" TV
Hi, I'm having a small but annoying problem: the picture on my JVC AV-28 WFX EUS1 is continously but irregularly, changing in size. It is like a zoom function (only horizontal) that is broke. Change in size is only about half a cm to 1 cm, but very noticeable on the sides (clock upper right). Resizing happens sometimes every 2 seconds, but sometimes it's stable for 30 seconds. Input doesn't matter, whether analog tuner or SCART.
I've tried eliminating magnetic fields by removing all cables from periferal equipment, but to no avail.
When I change modes from Panoramic to Full or 16:9 the screen is a bit more stable for a short period of time, or this could be just my imagination...
Anyone has any suggestion?? Thanks!
Hello, I think you have a faulty "horizontal width" or horizontal
linearity preset pot. This pot will be located on the main PCB
and you can adjust it with a small screw driver, when you do the
picture will shift from left to right or vice versa, or move back to fill each side. If it wont hold after making the adjustments then the pots ( potentiometers) need replacing, which means unsoldering them from the printed circuit board( PCB) and take them in to your local radio shop for new ones. By the way you might need 2 pots ( 1 for the WIDTH and 1 for the LINEARITY)
Posted on Feb 06, 2008
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Posted on Jan 02, 2017
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