Question about Sony FD Trinitron WEGA KV-34HS420 34" TV
The tv is alomost 15 years old but picture is very blurred but sound is good
Posted by Anonymous on
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Posted on Jan 02, 2017
Check the input fuse first. If it is blown, there will be some short inside the power regulator circuit. Usually Sony sets uses STR regulated power supply. You can see this STR, and Ic, screwed onto a heatsink. Replace it with a same type and number. Before replacing the STR, check the diodes used in that section for damage, mainlu zener diodes. They might get shorted along the blowing of the STR. Check that section throughly before resoldering the new STR.
If any further assistance you needs, get me through Fixya. Ok.
Posted on Nov 27, 2010
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