When to use low ESR in repairs ....

May 05, 2009 3 Replies
F

I've just finished repairing a failed Acer AL1912 LCD monitor in which an electro in the main switcher output had pulled the system down. All the electros are 105C and measure higher ESR than I'd like, so they will all be replaced while I'm in there as routine.



There is no indication whether the existing ones were low ESR or standard. Is there any potential issue if I fit low ESR in place of standard, or vice versa?


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J

Generally speaking low ESR capacitors are always the better choice for power supplies as they will run cooler.

John :-#)#

(Please post followups or tech inquiries to the newsgroup) John\'s Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out."
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B

Electros in switchers should always be low ESR types.

W . | ,. w , "Some people are alive only because \\|/ \\|/ it is illegal to kill them." Perna condita delenda est ---^----^---------------------------------------------------------------
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R

If they are in the output of a switcher, it is a reasonable bet that they are low ESR. Replace with low ESR anyway.

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