It is currently Fri Jun 22, 2018 8:24 am

All times are UTC - 7 hours





Post new topic Reply to topic  [ 5 posts ] 
Author Message
 Post subject: SNES Cap problem
PostPosted: Wed Oct 05, 2016 9:09 am 
Offline

Joined: Wed Oct 05, 2016 8:56 am
Posts: 6
Hello,
A buddy of mine purchased a SNES a long time ago now, but he never tried it out. Now when he did it turned out it did not work. It gets some sort of a picture but after a while it just goes blank.

So he came over with it and I took it a part. It a soda spilled in it and also a missing cap with a lot of corrosion.

http://i.imgur.com/MJjE6OR.jpg

Probably previous owner as well that have tried to bridge this.

It says SNSP-CPU-01 on the board.

What I am wondering is if anyone know what cap is missing and maybe where I need to bridge it. I'm assuming the bridge that is already there goes to the cap, but I might be missing something.
(Correction: After reviewing it a bit more I think the trace goes straight down and not to the cap, It looks like more bridges are needed though)

Edit: I think its a 10uF 25v Bipolar cap.

Any help is appreciated :)


Attachments:
File comment: Picture
IMG_0186.JPG
IMG_0186.JPG [ 1.38 MiB | Viewed 1696 times ]
Top
 Profile  
 
 Post subject: Re: SNES Cap problem
PostPosted: Wed Oct 05, 2016 10:12 am 
Offline

Joined: Sun Apr 13, 2008 11:12 am
Posts: 7223
Location: Seattle
https://console5.com/wiki/SNES#SNSP-CPU-01

The pictured patch job there looks perfectly plausible. I'd just try replacing C59 and see if that was sufficient.


Top
 Profile  
 
 Post subject: Re: SNES Cap problem
PostPosted: Wed Oct 05, 2016 3:34 pm 
Offline

Joined: Wed Oct 05, 2016 8:56 am
Posts: 6
lidnariq wrote:
https://console5.com/wiki/SNES#SNSP-CPU-01

The pictured patch job there looks perfectly plausible. I'd just try replacing C59 and see if that was sufficient.


The trace below it was broken too, so I pulled them a bit further a head on the trace, scratched some off and used wires, there was also a broken trace under the other cap which I didnt see until I removed that cap too, I replaced both caps but no picture at all now >_<. It's so small in reality.

The trace in the pricture that was already fixed was broken a bit ahead.

I messed up when using a desoldering iron, it sucked up the solder pad from the first cap, I removed the second cap because I couldnt see what was going on. I think I got it right.


Attachments:
IMG_0189.JPG
IMG_0189.JPG [ 476.26 KiB | Viewed 1650 times ]


Last edited by Rawlin on Wed Oct 05, 2016 4:26 pm, edited 1 time in total.
Top
 Profile  
 
 Post subject: Re: SNES Cap problem
PostPosted: Wed Oct 05, 2016 4:01 pm 
Offline

Joined: Sun Apr 13, 2008 11:12 am
Posts: 7223
Location: Seattle
For whatever it's worth, that pile of brown goo looks like C59 had exploded at some point in the past. (Consistent with the corrosion, too).

I don't have any specific ideas... Are the voltages correct? The SNES should have 0, 5, and 10V in specific places; based on your photo it looks like C59 might be related to filtering right at ingress?


There was a person who took a SNSP motherboard, and removed all the parts, and sanded off the resist, and took pictures, but they're not on his dropbox anymore :(


Top
 Profile  
 
 Post subject: Re: SNES Cap problem
PostPosted: Wed Oct 05, 2016 4:30 pm 
Offline

Joined: Wed Oct 05, 2016 8:56 am
Posts: 6
lidnariq wrote:
For whatever it's worth, that pile of brown goo looks like C59 had exploded at some point in the past. (Consistent with the corrosion, too).

I don't have any specific ideas... Are the voltages correct? The SNES should have 0, 5, and 10V in specific places; based on your photo it looks like C59 might be related to filtering right at ingress?


There was a person who took a SNSP motherboard, and removed all the parts, and sanded off the resist, and took pictures, but they're not on his dropbox anymore :(


Thank you :)

I was thinking that it might have exploded too. It's easier to see whats going on in the picture then in reality and I got a magnifying lamp. Currently there is no signal so I hope there wasn't any short. Would be sad if I executed it instead of saving it.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC - 7 hours


Who is online

Users browsing this forum: No registered users and 5 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group