Necessary to replace small caps?

[Newbie2]

Hey guys,

I got one question. On my BenQ FP731 monitors, I replaced all the Elite 1000uf 16V and Elite 470uf 35V caps on the power supply board with Panasonic FC caps of the same size and ratings.

There are a few other tiny Lelon caps on the power supply board, should I replace them as they are Lelon?

I know the rule that only caps over 470uf are more likely to fail, but as the small caps are Lelon should they be replaced also?


Thanks,
Newbie2

[linuxguru]

Re: Necessary to replace small caps?

It's a subjective matter - if it's on PSU rails, you may want to replace 220uF and 100 uF caps also. You can get Panasonic FC 470uF/25V, Nichicon PJ 220uF/35V and NCC LXF 100uF/35V in 8 mm, and these are useful in a wide variety of situations, so it's worth keeping quantity of those around for repairs.

[Leung Kai-yan]

Re: Necessary to replace small caps?

Hey guys,

I got one question. On my BenQ FP731 monitors, I replaced all the Elite 1000uf 16V and Elite 470uf 35V caps on the power supply board with Panasonic FC caps of the same size and ratings.

There are a few other tiny Lelon caps on the power supply board, should I replace them as they are Lelon?

I know the rule that only caps over 470uf are more likely to fail, but as the small caps are Lelon should they be replaced also?

Thanks,
Newbie2

Dear Friend,
Why not? The no. of capacitors inside a monitor is usually limited. The monitor of the picture below was taken after its complete replacement of capacitors.