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Hi my name in paul kraan and my frand has shorted out the output's of my sansui rz-4800 as a resoult it has blown the output ic part No : b688 would you be able to get me a replacment part number if there is one thank you

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Pl look at the IC and search in Google. Mostly Philips, Panosonic made IC would have been used. Check the complete no., printed on the IC.

Posted on Oct 05, 2010

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First, locate the horizontal output transistor. This is found very close to, or next to, the horizontal output transformer (also known as the flyback). The flyback should be on an aluminum heat sink, or on the side of the metal chassis. Disconnect or unsolder two of the three legs of the transistor. Measure it with your meter, or plug in the set with the light bulb attached across the fuse.
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First, locate the horizontal output transistor. This is found very close to, or next to, the horizontal output transformer (also known as the flyback). The flyback should be on an aluminum heat sink, or on the side of the metal chassis. Disconnect or unsolder two of the three legs of the transistor. Measure it with your meter, or plug in the set with the light bulb attached across the fuse.
If the transistor is shorted, or the light bulb doesn’t glow bright anymore, replace the transistor and plug back in. If the light bulb glows bright again, you must replace both the flyback and horizontal output transistor simultaneously. In some cases this will fix the set, but sometimes there are multiple problems with a set.
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Hope this may help;

Regards,
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DON'T FORGET TO RATE

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