LCD TV capacitor replacement

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  #1  
Old 12-16-10, 05:44 PM
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LCD TV capacitor replacement

I have a Samsung LCD TV with a bad power supply. Samsung is useless! Online advice told me that the unit uses a 10V capacitor and I could replace any bad ones with a 25V capacitor for added protection in the future. I cannot find a 25V cap. Would a 35V cap work or would it be too large?
 
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Old 12-17-10, 05:42 AM
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Welcome to the forums.

That substitution is okay. You're talking about several 1,000 mic caps, right?
 
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Old 12-18-10, 07:52 AM
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Thanks for the reply. The most I would be replacing is six (6) caps if they were all bad. They are 10V 1000 microfared capacitors. I have recently been told that if I were to go that high on the voltage, it could allow damage to other areas of the TV before the caps would fail again. They suggested to stay within the 10V to 25V range.
 
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Old 12-18-10, 08:19 AM
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Caps are not fuses. The cap's rated voltage is its breakdown voltage. The cap will not charge any higher than the supply voltage. Measure the voltage. I'll bet it's equal to or slightly higher than the original 10v caps, which caused them to fail. Quick searches tell me that it's a common issue with Samsung.

However, if you're skittish about using 35v's, go with the 25's.

The first Google result for "25 volt 1,000 uf" turned up this.
 
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