New member! Replacing capacitors in monitors!

Moomz

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Hi,

This place looks great for tech knowledge, I will be a frequent visitor!

I realise that most people will buy a cap kit and replace all the caps on a chassis! But in some places cap kits aren't sold, or some models of monitor!

I would like a supply of caps so I can swap them out when needed on chassis. I have a few different monitors! I actually would like to learn which capacitor does actually make the difference and not swap them all out. So I can take notes and understand what is going on better!

Now I can't keep nipping out to get a capacitor every time I discover a new bad one! Can you narrow down the different types of them by using larger/higher rated ones. I have read a guide that says you can in general but not relating to monitors! For example buy a pack rated for a higher heat and use them in place of the smaller ones on the board! Instead of having the same capacitance and different heat/voltage ratings!

Or should I look to match them all exactly!? And have bloody loads of them!
 
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Game On!
Tom
 
CAPs that are 30 years old but working really should just be replaced as they dry out as they get older. Also regarding CAPs or any elec component, you can go higher voltage but not higher UFs. UFs must be the same...

I take it you are out of the US then, because places like Mouser elec, a huge elec component place should ship anywhere and you could order all your CAPs from them.
 
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Yeah I posted this before I became a member!

My main concern was how different capacitors could be in terms of heat/voltage. I guess the main thing is physical size but I wasn't sure if say a 250v one would work in place of a 25v say. I know practically you wouldn't do it but would it work?

I am going to be using all 105 degree rated ones!
 
CAPs that are 30 years old but working really should just be replaced as they dry out as they get older. Also regarding CAPs or any elec component, you can go higher voltage but not higher UFs. UFs must be the same...

I take it you are out of the US then, because places like Mouser elec, a huge elec component place should ship anywhere and you could order all your CAPs from them.

Yeah I am out of the US but Mouser is still worth ordering from as they are free delivery over a certain amount! Good for stocking up on little bits and quite often the only place that has some transistors or cross references for them!

Randy Fromm used to say you can go higher on capacitance as well, but it isn't something I would be willing to do either!
 
And I have an Excel sheet at home that I've been listing all the caps for monitors that I know the kits for. I don't have it separated into 85 or 105 degree caps, but 105 degree caps aren't that much more expensive, so you could just replace all of them with 105's and be fine.

Depending on which models and how often you work on them, I usually try to keep enough caps on hand that I could do ten each of the most common models (G07, 4600, 4900, 7000, 7400/7500/2000/5000) and then I keep a small number of oddball caps (like the .47uf 50v cap for the K7203) in case I need them...
 
Thanks guys,

You always get great, and fast, responses on this forum! I think it will have to become my main Arcade Forum!

I had never spotted that list Ken, I will have a look!

It is going to be mainly, if not entirely, Nanao monitors for me :( But they are cheap enough to stock loads of I guess!
 
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