LG LCD power supply

[Dmuggy]

Re: LG LCD power supply

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[Dmuggy]

Re: LG LCD power supply

2

[Dmuggy]

Re: LG LCD power supply

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[Dmuggy]

Re: LG LCD power supply

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[Wrog]

Re: LG LCD power supply

C202 and C208 look physically damaged to me, but others with better eyes may be able to tell for sure. Remember what vinceroger said though, it doesn't have to "look" bad for it to actually be bad. Unfortunately you'd need access to some test equipment to tell for sure. Since you're already replacing at least C202 and C208 (maybe more), you may as well replace them all while you're in there.

The Samxon GK and GF series are common value low ESR, so these will be readily available. Personally, I'd ask for replacements in this order (not all values are available in every can size):

Panasonic FR series, FM series or FC series

The Samxon BD series (high temperature) are not low ESR, but you want to match or exceed the ripple current from the spec sheet. For the 1000uf 25v, the ripple current is 575 but the 1000uf 50v looks like it's custom (no spec sheet available). Suitable replacements with these characteristics may be UCC GPA series or Nichicon BW or BX series. The UCC has the highest ripple current at 2.62A, but any should work fine.

Good luck!

[selldoor]

Re: LG LCD power supply

Id agree 202 and 208 are bad, also the one to the right of 208 ,others dont show signs yet. I had a quick look and cpc dont seem to have high temp caps in those values personally Id just use the panasonics. Another snag is they sometimes only sell in packs of 5 so if you only need 1 its sometimes worth looking at Rubycon -they are sometimes a few p dearer but if you can buy singly they work out cheaper. ( unless you are going to make a habit of mending things and want to build up a stock )

Also when you come to taking the boards out give them a good dust - nice cosy jacket helps the components overheat