Japanese famicom on pal tv trough VCR?

[Finfami]

Old thread but I discovered that the older one of my two Famicoms works with picture and sound if I plug the antenna cable to vcr instead of directly to TV. Sound quality is flawless but picture has some heavy interference which I guess is normal in this situation (radio broadcasts at the same frequenciens in here Europe?) Mod seems to be the only way to achieve satisfying image quality.


Edit: my antenna cable is the cheapest one I found from eBay, that probably doesn't help with the interference....

[RoboPirate]

With the help of FAMICOM_87 in another thread I finally got my TV to find both the image and sound in excellent quality on an unmodified Famicom.
I have a Sony Bravia TV, PAL B.

Here's how I did it:
As has already been stated here, the sound carrier offset differs for different regions. The Famicom outputs the sound 4.5 MHz above the video, and PAL B has the sound 5.5 MHz above the video. In other words my TV can't normally find both sound and video at the same time.

As FAMICOM_87 explained, if you open up your Famicom(unscrew about 12 screws) you will find a PCB inside. In one end of the PCB there is a large metal box, this box is the RF modulator. In the middle of the RF modulator there is a circular hole, and in the hole is a screw. By using a really small screwdriver you can alter the frequency of the sound by screwing/unscrewing this screw.

I suppose this is normally used for fine-tuning, however I managed to change the frequency by a full MHz(My TV picked up the sound at 96.40 MHz), and so the difference in sound carrier offsets was finally overcome! 


@Finfami if you are having a problem with interference you can always cover the antenna cable with aluminium foil. No joke actually. The cable acts as a really long antenna so it should be no surprise it can pick up unwanted broadcasts. A single layer of aluminium foil works like a charm. Put some electric tape around it if you want it to stay in place(and look like a regular cable).

[FAMICOM_87]

I am glad that I can be helpful 
just look my results picture and sound quality are just awesome !! you can not belive this is an RF modulated image ! 
just use a coaxial cable this is the way !

https://www.google.bg/search?q=coaxial+cable&client=opera&channel=suggest&hl=bg&tbm=isch&prmd=ivnsp&ei=dbJUVtKcG8HCsgH8goSQCg&start=0&sa=N


http://www.famicomworld.com/forum/index.php?topic=12321.0