Sony KV1926RA


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Sony KV1926RA

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mrgoodwrench
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Oct 26, 2004, 12:17 PM

Post #1 of 4 (2495 views)
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Sony KV1926RA	Can't Post

This Trinitron has a collapsed picture, just a horizontal band Started out intermittent, now permanent. I would like to repair if simple parts replacement, any ideas? Thanks.

mel
Veteran

Oct 26, 2004, 9:22 PM

Post #2 of 4 (2479 views)
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Re: [mrgoodwrench] Sony KV1926RA [In reply to]	Can't Post

Look for bad solder joints around the vertical section.

mrgoodwrench
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Oct 27, 2004, 12:25 PM

Post #3 of 4 (2470 views)
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Re: [mel] Sony KV1926RA [In reply to]	Can't Post

I did just that, found bad solder joint at transistor Q503. Resoldered it, now picture is almost full screen and steady. There is about a 2" black band at the bottom, and the lower part of the picture is compressed with an appearance of scrolling at the very bottom edge. Thank you for any more ideas you might have.

mel
Veteran

Oct 27, 2004, 9:47 PM

Post #4 of 4 (2460 views)
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Re: [mrgoodwrench] Sony KV1926RA [In reply to]	Can't Post

The foldover is caused by bad electrlytic capacitors in the vertical circuit. You can go to www.samswebsite.com and download Photofact no. 2550-2 for $20 and the troubleshooting guide will tell you which ones th change.

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