Famicom World

Family Computer => Famicom / Disk System => Topic started by: onimusya on February 08, 2011, 07:53:06 pm

Title: Need Help solving the RF connector issue
Post by: onimusya on February 08, 2011, 07:53:06 pm
Hi guys,

I have a NTSC/J first famicom. The prob is, my TV RF connector is not in the same size as the Nintendo RF connector cable. As you can see in the attached picture below. Been searching for a device to make it work, no luck. Is there any way to solve this?

Thanks

(http://i85.photobucket.com/albums/k62/onimusya/howtola.jpg)
Title: Re: Need Help solving the RF connector issue
Post by: wolf9545 on February 08, 2011, 08:40:56 pm
What type of tv do you have (make, model #)?  Never saw anything like that before.  Once we get the model # it might give us more info.  Do you have the user's manual?  Maybe it states what device to use in that.
Title: Re: Need Help solving the RF connector issue
Post by: manuel on February 08, 2011, 09:04:28 pm
Are you in Europe?
I know that antenna cables used in Germany (and probably all of central Europe) have a rather thick pin inside the connector and Japanese ones have a thin pin.
Title: Re: Need Help solving the RF connector issue
Post by: Xious on February 08, 2011, 09:15:47 pm
You beat me to that. I was thinking it was a W-EU set; looks like it is a 'Homi' brand, whomever they are.

You can switch the 75Ω adapter box from the one attached to the Nintendo RF cord to the one you are holding in your hand. Just pop them both open, remove the wire from the Nintendo one,and reinsert it into the one that probably came with your display.  :pow: Just pay attention to how it's connected up internally or externally. You can use a 300Ω adapter (the kind with the two little 'claws') and connect it to the screws on your 75Ω adapter if all else fails.

Even if you do attach it, it's probably unlikely that it'll do much, as that looks to be a PAL-B tuner-based set-up, and unless it is designed with an NTSC subset and a decently forgiving X'tal, getting the correct frequency will be problematic-to-impossible. Your local electronics shoppe may also carry an adapter: The FC/NTSC-J connection uses 'Type-F'. If that all fails, your best bet is an A/V mod. If you want to order an A/V kit (RohS kits for the EU import laws available), send me a PM.

I hope this helps you out.  :bomb:
Title: Re: Need Help solving the RF connector issue
Post by: onimusya on February 08, 2011, 11:48:30 pm
Quote from: wolf9545 on February 08, 2011, 08:40:56 pm
What type of tv do you have (make, model #)?  Never saw anything like that before.  Once we get the model # it might give us more info.  Do you have the user's manual?  Maybe it states what device to use in that.


i have both CRT n LCD tv . the CRT is an old tv model brand toshiba while the LCD is Sharp Aquos. The # numbers im not sure, will check once im back home, now im in the office. The user manual unfortunately is lost.

Quote from: manuel on February 08, 2011, 09:04:28 pm
Are you in Europe?
I know that antenna cables used in Germany (and probably all of central Europe) have a rather thick pin inside the connector and Japanese ones have a thin pin.


The TV we have here in Malaysia ( part of South East Asia country like Singapore n Thailand ) is using that same antenna cable. the thick pin inside the connector.

Quote from: Xious on February 08, 2011, 09:15:47 pm
You beat me to that. I was thinking it was a W-EU set; looks like it is a 'Homi' brand, whomever they are.

You can switch the 75Ω adapter box from the one attached to the Nintendo RF cord to the one you are holding in your hand. Just pop them both open, remove the wire from the Nintendo one,and reinsert it into the one that probably came with your display.  :pow: Just pay attention to how it's connected up internally or externally. You can use a 300Ω adapter (the kind with the two little 'claws') and connect it to the screws on your 75Ω adapter if all else fails.

Even if you do attach it, it's probably unlikely that it'll do much, as that looks to be a PAL-B tuner-based set-up, and unless it is designed with an NTSC subset and a decently forgiving X'tal, getting the correct frequency will be problematic-to-impossible. Your local electronics shoppe may also carry an adapter: The FC/NTSC-J connection uses 'Type-F'. If that all fails, your best bet is an A/V mod. If you want to order an A/V kit (RohS kits for the EU import laws available), send me a PM.

I hope this helps you out.  :bomb:


I've already done that, It seems not working as well. Even the interior of both connectors is not the same. I've heard the A/V kit, but not so sure how to mod it. interested though :)

Title: Re: Need Help solving the RF connector issue
Post by: Xious on February 09, 2011, 12:06:48 am
Makes sense. I knew I've seen it before, so that helps. I'll need to check your region specs to see what standard you use over there before I can offer further advise though, and I'm exhausted after a 22-hour, going on 23-hour workday.

I'll check back with you in the morning. Also, if this thread seems to vanish, look for your posts in the 'Technical & Repair Assistance' thread: It'll probably get moved by a mod/admin before the day is old.
Title: Re: Need Help solving the RF connector issue
Post by: jpx72 on February 09, 2011, 12:11:46 am
I don't know why you people are bothering with the RF switch. Use only a simple cable, like this:
(http://img706.imageshack.us/img706/2528/img2965z.th.jpg) (http://img706.imageshack.us/i/img2965z.jpg/)(http://img696.imageshack.us/img696/4668/img2966l.th.jpg) (http://img696.imageshack.us/i/img2966l.jpg/)
Title: Re: Need Help solving the RF connector issue
Post by: UglyJoe on February 09, 2011, 05:51:14 pm
Quote from: Xious on February 08, 2011, 09:15:47 pm
looks like it is a 'Homi' brand, whomever they are.


I can't tell if you're joking or not ;D
Spoiler
HDMI
[close]

Title: Re: Need Help solving the RF connector issue
Post by: Xious on February 09, 2011, 11:27:45 pm
D'oh.  :pow:  Realizing it was a foreign set, I instinctively thought that the only logo anywhere in the images of it was a brand-mark...That's my punishment for never owning, using or even looking at anything with that connection; majorly because the entire concept is purely evil: A way for the film and TV industry to control your content even further. And the logo sucks.

As to the cable, I was answering a simple question abut how to use the switch-box (original equipment). He could also buy a variety of adapters, or a different switchbox, but I doubt that anything will get it to work on that display via an RF connection... The problem being that the X'tal in newer displays just isn't forgiving enough to synchronize with any frequency that is even a little off of what it's predesignated signals allow. The reason older TVs can puck up NTSC-J Ch1 around NTSC-M Ch.95/96 is because the frequency output is between the acceptable frequency of those two channels, and it is possible to get an older tuner with more relaxed X'tal to attune.

With newer sets, the acceptable frequency range is tighter, more limited, and it becomes impossible to get them to accept anything that isn't exact enough. Honestly he's be better off with an old antenna-based set-up, or a Japanese TV. In future, on the TVs to come, and even on some sets out now, A/V won't work because the signals won't be acceptable. At least there is no lack of legacy TVs and displays of various kinds.  :octorok:

On a side-note: I've noticed that it is impossible to import NTSC-J TVs to the USA without them getting dropped and damaged along the way... The last two even had giant cracks int he cases that they did not have prior to leaving Nippon. I picked up a beautiful red, black and silver Sharp set that perfectly matched the FC colours, and when it arrived, the tube died after ten seconds and the case had cracks along its bottom and a nice hole in it as well, clearly indicating that it'd been dropped.

Now I have two sets to repair... I also need to get my mini-set working, which entails opening it an wiring up a different pick-up for the antenna/RF, as it uses a special 2.5mm connector and it's just too problematic to use it that way... While I'm at it, maybe I'll go nuts and mount up a FC inside a luggable computer case, like a Compaq or SX-64. That'd be rather neat. :)  :bomb:
Title: Re: Need Help solving the RF connector issue
Post by: onimusya on March 10, 2011, 10:18:44 pm
Quote from: jpx72 on February 09, 2011, 12:11:46 am
I don't know why you people are bothering with the RF switch. Use only a simple cable, like this:
(http://img706.imageshack.us/img706/2528/img2965z.th.jpg) (http://img706.imageshack.us/i/img2965z.jpg/)(http://img696.imageshack.us/img696/4668/img2966l.th.jpg) (http://img696.imageshack.us/i/img2966l.jpg/)



already try it dude. doesnt work.