Resistor Value on Lolo cart?

[gokugohandave]

Im trying to figure out the value of the two resistors on my lolo cart for nes. Everywhere ive looked gives 20 different readings. It has A big brown band, then black orange silver then brown. Im hoping to replace these becasue I read somewhere that when they blow they can cause the graphics issue im having. I dont want to hear any clean your pins or cart comments, all have been done extensively and even on new 72 pin. Anyone with a lolo cart that can read these please post em or thoughts.

[jb143]

brown, black, orange, silver, brown is 1.03 Ohm 1% tolerance. That's a pretty specific value if you ask me. Does it look bad?

[gokugohandave]

One of them is missing a portion of paint and the other looks good. But any of the ohm settings I use on my multimeter dont match any of the numbers I got. I tried 3 different 5 band testers and got a different number each time.

[ProgrammingAce]

First off, are you removing them from the board before you're testing them?

And secondly, if you're testing them correctly and getting wildly inaccurate readings, then replace them.

[gokugohandave]

hmm theyll have to come off anyways, forgot that the circuits can mess up a reading. The readings are differnt for each. Which setting shoud I be using, 2000? Is this a common one or do I have to pull them off another board?

[jb143]

If it's the value that I said above then you want it on the lowest setting it will go on. It's not a common resistor. Radio Shack sure isn't going to have it. Digikey.com and mouser.com don't look like they have it either.

[gokugohandave]

crap, just what i need to hear, one of the tests I got was 1.03M ohm. Thats way different than 1.03.

[gokugohandave]

I think its definitly blown, set on 200 it jumps up to 17 and 16 and then drops to zero again on both of them, and thats on the board.

[gokugohandave]

But hey my soldering skills are vastly improving so yay more practice!

[gokugohandave]

so now theyre off they wont read anything. Doesnt matter, theyre getting replaced one way or another. Any one have a duck hunt cart or something with these in it that I could salvage? Thanks for the help.

[gokugohandave]

Is there a way to place a few together to get that rating? Or is anyone willing to sac some working cart with these in it? I dont care about the time and effort, i just want to see if I can make it work right.

[shadowkn55]

I think the component you are measuring is a capacitor and not a resistor. That's why it gives wild readings when you try to measure its resistance. If it has a pinkish color to it instead of beige, it's a 0.01uf capacitor used for decoupling. Nintendo likes to use axial capacitors on their carts (snes also). One sure fire way to determine if its a decoupling capacitor is to check if one side connects to vcc and the other connects to ground. If you really need some, I have a few I took off some carts.

[ooXxXoo]

Indeed!
I also believe that you are mistaken the cartridge capacitors with resistors.....Also, Its quite unusual to kill a carbon resistor...

[gokugohandave]

If theyve disguised capacitor as a resistor, I stand corrected. But out of all the capactors ive replaced, never seen one that looks like a resistor. Yes it is beige colored. If I can ill get a pic of one of em. I think I lost the other. :(

[gokugohandave]

So after 20 mins my 4 MP camera cant take a picture of this thing to save its life. Shadowkn55 can you put up a pic of one and I can tell you if thats it? How much would you be asking for two shipped?

[shadowkn55]

My point and shoot camera doesn't focus well on close ups. Are there any markings near the component area? Something like C2 or R3. C# is for capacitors while R# is for resistors. If you end up needing it, just enough for shipping will cover it.

[gokugohandave]

I am astonished, It does indeed say c3 and c4 for them , damn nintendo likes to be sneaky eh? I went and looked at some decoupling capacitors and NONE of them looked like this. Thats why I couldnt figure out why it was marked c. I know they use the r and c for markings. Ill take two of em if youve got the right bands, my paypal might be going empty today so will you take an echeck or something?

[gokugohandave]

So a simple thought. Would it be possible to replace these with a different decoupling capacitor that does not resemble a resistor of the same value? Like blue square ones or the brown round ones? I know radioshack has em and it would be quicker. But if this wont work then ill have to go with some from you shadowkn55.

[shadowkn55]

The package of the capacitor doesn't really matter so long as you can put the board back in the case without trouble.

[gokugohandave]

Well thats good to hear, thanks to you ooxxxoo as well.

[gokugohandave]

so shadowkn 55 looks like ill be needing two of those caps. I put two from radioshack in same value, tried it on my famiclone w/adapter and nes and it still doesnt work. Im wondering if its not one of the roms itself. Or the other cap.

[skaar]

I think it's cool you're putting all this effort into rescuing a cart. Seriously - good luck and let us know if you get it working in the end ;)

[gokugohandave]

Well, the parts arent that much, the time I have plenty of, and so what if I can buy a working one for less before im done? Its something to do, and practice my soldering skills at that, plus any knowledge I can gain from it is good too.

[gokugohandave]

well, ive given up, reflowed every joint, cleaned the contacts again, i had better graphics once, never got it again. Im done with her for now.