Replacement question

[1cowabunga]

Hello, This is my first repair and first time soldering. I bought a kit for replacing some capacitors in my LCD monitor. All was going smoothly until this question popped up. I am replacing a 10uF 50v but the new ones to choose from are a 22uF 50v, and a 1uF 50v. Are any of these compatible? Thanks for any help. (see photo)

[stj]

Re: Replacement question

well you cant go down, the 22uf *may* work - you didnt give any detail about where it's going.

btw, not much of a "kit" if it has different parts and no instructions!

[1cowabunga]

Re: Replacement question

Thanks for the reply. Long story short I ended up just re-soldering the old one back on since it wasn't bad and replaced the ones that I knew would work. Now my monitor works like new!

I agree, I wish there were more instructions with the kit since it came with extra caps and I'm sure they sent me the one for the different model (after carefully selecting the correct one to purchase). It was for a power board on a Samsung Syncmaster 205bw. The listing is here

http://www.ebay.com/itm/330524286056...%3AMEBIDX%3AIT

The specific cap in question is the smallest one on the board - Does anyone know what it does? Here is a picture with it circled: http://imgur.com/a/uLtrx

[stj]

Re: Replacement question

samsung probably sold the monitor with more than one psu.

that's a startup-cap used to kickstart the controller when you connect the power.
22uf would probably work there.

[Mint Waxed]

Re: Replacement question

Thanks for the reply. Long story short I ended up just re-soldering the old one back on since it wasn't bad and replaced the ones that I knew would work. Now my monitor works like new!

I agree, I wish there were more instructions with the kit since it came with extra caps and I'm sure they sent me the one for the different model (after carefully selecting the correct one to purchase). It was for a power board on a Samsung Syncmaster 205bw. The listing is here

http://www.ebay.com/itm/330524286056...%3AMEBIDX%3AIT

The specific cap in question is the smallest one on the board - Does anyone know what it does? Here is a picture with it circled: http://imgur.com/a/uLtrx

Buying a "capacitor kit" is a good starting place but as you gain experience you will learn how to select and purchase your own as the kits seldom tell who made the capacitors and some other important parameters. To select your own, you soon realize manufacturers have different types they call a Series. Take a look here: http://www.mouser.com/search/refine.aspx?N=12013592 By using the Filters "Enable Smart Filtering" you can quickly narrow down the available choices. When you run into a parameter you don't understand, google it to broaden your knowledge base. With a little practice you will eventually be able to know exactly what to order just by looking at the old existing parts. Be advised electrolytics have a finite life so it is advisable to replace all the capacitors so they'll all be of the same age.