Can anyone improve the rgb output on my duo?

[thesteve]

yes thats right
both caps reduce the noise on the videoprocessor

[incrediblehark]

pins 41 and 42 are ground
so the cap from 42 to 43, and if you bridge 41 to 42 no prob
yes its an improvement to any (even composite)

Is that on the HuC6260?

PS you have the same duo as me
if you havent had a full cap change its highly recommended and does improve performance.

I may have to go that route but would feel more comfortable having someone else do the cap replacement just because its a US Duo and I've had a bad luck with these systems in the past

[BlueBMW]

Ahh, if you haven't had caps, that may very well be your issue to begin with!

[thesteve]

yes thats the huc6260

[HercTNT]

I'm gonna give this a try as soon as i get a bit that will open my duo. I heard i could make one by melting the end of a bic pen, but i dont have one of those either

[BlueBMW]

If you're just opening it the one time, order one of those cheap china security bits (as they're good for maybe one use anyways) and get some replacement screws. 

Melting the end of a bic pen?  seems unlikely that it'd work.  The screws in Duos are usually tighter than darnit if they've never been out before.

[HercTNT]

I saw the bic pen thing on another guys site. He claims it works, i dont know, i have never done it. My duo has been modded before so the screws might not be that bad. I tried to order the security bit, waited 3 weeks and they sent me the wrong one.

[ApolloBoy]

The pen trick never worked for me, I'd just invest the money in a good gamebit.

[HercTNT]

Steve, c961 in my unit has a 10uf 50v cap in it.  I need to match the voltage do i not. My 220uf caps are only 25v. 

[BlueBMW]

Steve, c961 in my unit has a 10uf 50v cap in it.  I need to match the voltage do i not. My 220uf caps are only 25v. 

Has that cap been replaced by someone?  The only 50v cap I know of in the duo is the 1uf one by the cd drive connectors...

[HercTNT]

yes it was recapped when i bought it. its a doujidance dou-r.

[thesteve]

it should be a 16V cap.
anything 16V or more is good.(6V would be fine for that cap)

[HercTNT]

Ok everyone, I followed steve's instructions and installed a 1uf ceramic cap on pins 42 &43 of the huc6260 chip. Then I installed a 220uf cap on c961 that sits directly below were you put the ceramic cap. After installing the two caps the improvement on the composite video is the most dramatic for me. The improvement on the rgb video is still very noticeable. Thanks to all the advice from everyone in this thread, and special thanks to steve, my output is alot better. It was really good before.  Dont ask for screens, as i have stated before my camera sucks. Lets just say that making the adjustments to your duo is worth it. 

[thesteve]

C961 that sits directly below where you put the HU-Card

fixed it for ya

[HercTNT]

LOL, yea thats what i meant to say. thanks.