White Lines without sound

[Tairetsu]

Hi!,I'm new here,sorry that my first post is asking for help,but I have an issue and I'm kind of a noob when it comes to technical stuff,basically I got an AV modded Famicom a couple years ago and it worked fine at first,first test it on my dad's NTSC TV,and then got it running on a PAL TV back here,but at the time I did not had any games for it,so I had the console on the shelf for a while,say,a year from there I finally got a couple games and decided to bust it out again,but it was not working anymore,now I have seen at least 1 more post about white screen on this forum but I did not understood the answers,as dumb as it sounds,so I would like to get some help on more noob-friendly terms .

If it helps,I used the console with a SEGA Genesis AC adapter to get it working with the local voltage,and as I said I did not made the AV mod myself,I bough the system with it included,open it up and I guess it looks fine on that end,but then again I would not know how to recognize a fried component,I'm getting a white or white and black screen depending on what game I boot the system up with,or a blue screen if I plug in the disk system without any games,but no sound,also it's strange that this happened after a long period of being unused,rather than soon after being plugged in for the first time.

Thanks in advance!. 

[iStreet]

Tried cleaning the pins in the famicom or on the carts? I know that you will get a white screen and/or purple screen when you have dirty connectors in a NES...

[Tairetsu]

I tried a very long time ago,I could do it again...how am I supposed to clean them exactly?,last time I used some dry cotton swabs but that did not do much,so I'm not sure if there is a better way to do it.

I was also wondering if modern TVs still affect older consoles regarding their region,my TV is a modern HD TV,if it was PAL,would that affect how the console looks and works?.

[jpx72]

How did you test it back then, when you havent got any games?
You have a video signal (white/blue screen), so dirty connector is most probably the problem.
Console is aging, even when you dont use it, contacts oxidize, capacitors dry out or worse - they leak.
Clean with alcohol and cotton swabs/pads.

[Tairetsu]

How did you test it back then, when you havent got any games?
You have a video signal (white/blue screen), so dirty connector is most probably the problem.
Console is aging, even when you dont use it, contacts oxidize, capacitors dry out or worse - they leak.
Clean with alcohol and cotton swabs/pads.

Well,I tested it with the game it came with,but I don't know what the game is called,sorry for the error also I tried cleaning before and now and it still doesn't work,if it helps at all,here's a picture of what i'm getting when I turn it on.

[Byron]

If the cartridge and slot are clean, the next most likely thing is the AV mod itself. It would probably be something simple like a broken solder joint, so if you have a soldering iron try re-melting the solder around the mod components. That would fix any bad connections.

I'd like to give you a less technical solution, but I'm afraid there isn't one.

[Tairetsu]

If I had an RF cable I would try it out,just to make sure...sucks,should I be able to notice it?,I opened up the system yesterday to check that but the AV mod cables SEEMED to be in place,but since I'm not an expert I could not really say if they were properly connected or not,they just seemed to be firmly on their place.

[80sFREAK]

Clean the slot, clean the cart, try another cart. Video out is ok, just CPU don't want to start.

[Tairetsu]

I tried all of that already,if the CPU does not want to start how do I fix that?

[80sFREAK]

Try 240 grit sandpaper and check if pins in the slot are fine. Next step i s to check soldering on the pcb