Hey everyone. I just got an AV modified Famicom from Japan, and I have a question about it. While I play games on it, there are faint white lines in the background of my television screen. The lines go across the screen in a pattern. I know it's not the modification because if I run the system using the RF outlet it still shows the lines. It's not the T.V. either, because I've tried it on my other T.V. and the lines are still present. What could be the cause of this? Thanks.
AC adapter. Try another one. DON'T use a NES adapter!
The only other adapter I have is an NES adapter though.
Compatible AC adapters:
- Sega Master System
- TurboGrafx 16
- Sega Genesis Model 1
- Super Famicom
You can also use a universal AC adapter set to 9V and negative polarity.
Then get another Famicom adapter ::)
You also can get (certain) universal adapters as a substitute...But there's another thread for this. I'd check it out. There's also a page on the website. One more thing...welcome! :D
Thanks Nintendodork :). So you're certain it's my adapter?
Trust (almost :P) anything 133MHz says. He knows all about technology.
M'kay. Thanks for the help, I would've never guessed it was my adapter. Would you recommend getting a universal or another original adapter?
Well, the best option would be to get an original adapter, but make sure if you buy it online, the seller shows pictures of it. If it's all crappy and rusty, it will probably just hurt your Famicom.
looks like he,s having the same problem im having .i havent been able to find a ac adapter to fix mine yet but 133 has helped me in the past ;D.also look at my topic [ghost lines[
Just wondering, but what would the cause be if a new adapter didn't work?
Then it would be the port on your Famicom where you connect the power adapter. I'd check that too, to see if it's rusted. That can also be a problem.
It's not rusted, but I swabbed it with a q-tip and got a VERY large amount of dust out of the socket. But I think it's still the adapter because I tried using the adapter again and still, there were lines.
Okay, well, if a new power adapter doesn't work, check the wires on the adapter and the prongs on it (and your current one) if it shows signs of wear then that could be the case. But most of the time, you won't run into a problem like that with a new one.
Okay, but I have a question about the adapter port. What can I do if that's the cause? Sorry for asking so many questions :-\.
There's a way to fix it (I think) but don't ask me..I'm 13! Ask 133MHz. He can help you with the guts of the Famicom more than anyone else on the forums..or most anyone else you'll meet for that matter :o
Alrighty then, If I have problems still with a new adapter(I REALLY hope I don't), then I'll ask 133HMz. Thanks :)
I don't think you will. It would really suck if you did, and I've heard of cases that have gotten to the point where they found out it was their outlet, only after trying several games, Famicoms, power adapters... :-\ People aren't usually that ignorant. So keep that in mind!
But again, I don't think you will ;D
I made sure it wasn't the outlet, I tried it on two different outlets and T.V.'s so I think it's definitely the adapter. Well, I'm gonna keep my fingers crossed ;)
Do you have a Disk System?
No I don't. Also the new adapter didn't work >:(. So now what?
:o When/where did you get a new adapter? I didn't know they sold them in the U.S!! Unless you got two...
I just went to RadioShack and bought one today. It still shows the lines, though.
You got a Famicom adapter at Radioshack? Do you live in Japan?
Um...no...it's not a Famicom one, it's a universal one.
Oh, ok. Hm...that's pretty weird. Since you've ruled out the outlet, TV, and now...you've ruled out...the adapter :D Well, it could be your A/V mod. That's the only other thing I can think of. :-\
But how can it be the modification if it still shows lines with the RF switch in use instead of the AV cables?
Oh, right...
You may have to open it up and find out. That is, if you're good with that kind of stuff. Are the lines really bad?
No, but they're pretty annoying.
What could the cause possibly be?
I'm not sure, I'm gonna pass it over to 133, I'm out of ideas now...
And don't double post, modify the first one instead
flips having the same prb im having look at my ghostlines topic ive tried a sms, sg, tg16 and cheap univer one that came with my tg16. the only thing i can fig is that the guy that mods these 4 the seller we bought from uses very cheap old av cables mine didnt look like much care was taken when they did mine. look at the last post of my ghostlines topic! >:(
How do I replace a capacitor though? Also my problem IS NOT related to the AV cables. The lines still show when I use the RF switch which proves that, for me at least, the lines aren't caused by the modification
ive tried 4 power plugs none make diffrence >:(
Alright fellows, you are a bit lost on this topic regarding the Famicom ghosty lines...Unfortunately, the problem itself has to do with something much bigger, other than just a power supply capacitor...133Mhz is definitely a great guy full of knowledge, but I believe the capacitor issue was, as he recalled, just a theory....The ghosting effect has to do with an issue of the PPU Sync pin being relatively close to some of the PPU control bus signal pins, among some video noise caused by the CLK crystal...In other words, a bad design....After some experimentation, I've finally been able to get rid of them in a Famicom.....A filter amp has to be built around the PPU Sync pin 22 and the native 21.47727 Xtal....The NES has it, so does the Famicom AV...
Interesting. It's not something I ever noticed until I got my Famicom and hooked it up to my HDTV. My NES was stolen years ago, long before the rise of digital TVs. I guess this is something you tend not to be able to see until you hook them up to a high quality display?
Mine is hooked up to a flatscreen TV...I forget what they call it though, it's screen is like an HDTV..I've noticed very, very faint lines too. But I can only notice them when I play a game like SMB with a bland background.
Don't worry guys...Like I said, this is normal, due to the bad design.....The ghost lines are there in all old RF Famicoms...They are just not that visible because of all of the RF interference blurrr.... But when the RF video is transcoded/divided into the single composite video, you'll definitely see them..Even my Sharp Twin system with the native factory composite video has them very noticeable in my Tv set up....Although, one thing if for sure, some Famicom video modification modders can be great and try to hide them as much as possible (with better composite video amplifiers), while others just do a bad, sloppy jod.
I disagree. My Sharp Twin doesn't show ghost lines. I can use mine on a top-of-the-line hdtv and crt rptv and there are no ghost lines visible from it or my av modded Famicom.
Quote from: ericj on February 15, 2009, 08:06:02 pm
I disagree. My Sharp Twin doesn't show ghost lines. I can use mine on a top-of-the-line hdtv and crt rptv and there are no ghost lines visible from it or my av modded Famicom.
It is more noticeable in some tv's than in others....
Thanks for the clarification, ooXxXoo. Do you think that if I sent it to Nintendo or something they could add the filter for me?
Quote from: Flip on February 15, 2009, 08:11:44 pm
Thanks for the clarification, ooXxXoo. Do you think that if I sent it to Nintendo or something they could add the filter for me?
I don't think Nintendo will ever service the Famicom, NES, SNES or even the N64 again, but I could be wrong...They have been, as people know it, discontinued...Besides, this is an issue that you weren't supposed to be aware of to begin with....
Well, if they can't help me, is there a way I could add the filter myself?
Quote from: Flip on February 15, 2009, 08:22:22 pm
Well, if they can't help me, is there a way I could add the filter myself?
Well, is not just a filter what you need, but a whole circuit has to be built around the PPU, which includes, a few resistors, capacitors and a transistor, in other words, all of these factors combined will act as a filter.... I'll write the schematic someday and freely post it....But soldering and a little of electronic knowledge is required..... If I was you, I won't really bother with it for now...
Ok then. I guess this is the end of the post, because I know pretty much everything I need to. Thanks again to everybody who helped.
i also thank every one ;) ive been losing sleep over this for the last two weeks ! Flip you should still open up your famicom and make sure the av mod was done the right way . just take a few pics and send them to 133, you wouldnt want 2 miss out on those extra sound chanles!