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Automation, Cinema, Computers, Television Forum
venturer LCD15-106
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<blockquote data-quote="ProDave" data-source="post: 255386" data-attributes="member: 6969"><p>The polarity should be marked on the board. Usually one half is shaded and that's usually the negative pin.</p><p></p><p>you could try powering it up with the expired cap in place briefly just to measure the voltage across the extinct capacitor. Then once you know the voltage, fit the largest capacitance you can fit in the space. It rarely hurts to be too high in value. fit a slightly higher voltage than you need, e.g if it measures 10V fit 16V or 25V rated capacitor. Also if it is the input smoothing cap, then the measured voltage with no capacitor in place will likely be lower than the voltage when a good cap is there. Make that reading and tell us what you find.</p><p></p><p>I dabble in tv repairs as a hobby and it can be very time consuming. I don't know how you could make a living at it. If I charged my normal electricians hourly rate, then my the time I've fixed it, you could have bought a new set for what I would charge. I only do it for fun.</p></blockquote><p></p>
[QUOTE="ProDave, post: 255386, member: 6969"] The polarity should be marked on the board. Usually one half is shaded and that's usually the negative pin. you could try powering it up with the expired cap in place briefly just to measure the voltage across the extinct capacitor. Then once you know the voltage, fit the largest capacitance you can fit in the space. It rarely hurts to be too high in value. fit a slightly higher voltage than you need, e.g if it measures 10V fit 16V or 25V rated capacitor. Also if it is the input smoothing cap, then the measured voltage with no capacitor in place will likely be lower than the voltage when a good cap is there. Make that reading and tell us what you find. I dabble in tv repairs as a hobby and it can be very time consuming. I don't know how you could make a living at it. If I charged my normal electricians hourly rate, then my the time I've fixed it, you could have bought a new set for what I would charge. I only do it for fun. [/QUOTE]
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