Famicom AV mod made easy
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- Опубліковано 15 чер 2024
- #famicom #nes #retro gaming
In this video I will show you how to easily mod your Japanese Famicom with out having to drill any holes into its shell. I give comparisons of how an RF and AV signal differ on a newer television and take you step by step on how to perform the mod from start to finish. With this method you get to keep the original RF functionality and 100 percent of the original Famicom aesthetics. This is a good option for those who like to keep retro consoles as original looking as possible. This is an option to drilling into the shell of the console and adding AV out puts. In this mod we will install a trrs female port and run the wires through the same port as the player 2 controller bypassing the need to drill or cut into the classic Famicom design.
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Time needed: 25-30 min
Parts:
-Famicom
Board Ver. (HVC-CPU-GPM-02)
- ribbon cable
-Video Capacitor 47µF 16V
-Audio Capacitor 220µF 16V
-resistor 120 Ω 1/4 W Takman
-Ceramic Capacitor 1µF
Components came from:
Sengoku Electronics www.sengoku.co.jp/mod/sgk_car...
🔧Tools:
-nippers www.amazon.co.jp/DAIKITOOL-No...
-soldier for circuit boards Diameter 0.6 mm www.amazon.co.jp/%E5%A4%AA%E6...
-Goot Soldiering Iron KS-30R 100V 30W www.amazon.co.jp/%E5%A4%AA%E6...
-Tip Cleaner Goot ST-40 www.amazon.co.jp/%E5%A4%AA%E6...
-Flux BS-W20B www.amazon.co.jp/%E5%A4%AA%E6...
-Soldering Iron Holder www.amazon.co.jp/%E3%82%AD%E3...
Music: (Zophar Net) patreon.com/zophar
Bensound.com - Ігри
👉Check out my Easy Famicom controller button casting video ua-cam.com/play/PLXy8jPf4dll17qFbs1Z6lkPP7dXIj1Ewa.html
Man, I want to thank you SO MUCH for this video. I have been attempting a famicom AV mod for days now trying all different sorts of methods. None of them worked despite me making sure the circuits were right. I tried your mod and it worked like a charm, first try. I modded a different board revision than yours. Mine is a HVC-CPU-07. The points where to solder to are actually in a different spot. They are square solder pads on the bottom side of the board labeled "VID" for video, "AUD" for audio and "GND" for ground. The ground can actually be grabbed from any ground point on the board, I just picked a point closest to the pads. Maybe worth pinning this for those wanting to mod their HVC-CPU-07 boards. 😃
You are welcome👍 Awesome man Im glad this video helped you out👍 Thank you for sharing your experience with us. If possible could you share your modding pics on twitter or instagram? If not no worries. I hope to make some more videos showing how to do the same mod in different ways. Did you do the no drill method or make it look cleaner with rca outs?
@@ScruffyLookinRGB I might post some pics on twitter later. I was considering using RCA jacks but decided to just hardwire composite cables. My cables were thin enough to fit between the housing and the 'tv game' switch. So no need to drill holes.
@@ScruffyLookinRGB I should also mention that at first the video had a lot of jailbars. This was greatly reduced by adding 2 caps on the bottom of the board
@@mrmii6596 Hey, realise it's been a while but have done the same as you (hardwire etc) remember whereabouts you put those caps?
@@DABYXman Hi, not sure anymore where those caps were, no, it's been a while, haha. I do remember reading about adding those caps on a different site or forum. Plenty of famicom mod guides show those caps to reduce jailbars.
This is by far the best job i've seen in modding a famicom!!
Thank you🙏🙏🙏
This mod was awesome. Just completed and tested mine. worked like a charm. I used a premade TRRS female connector with wiring. I did have to strip the sheathing to keep the wires flat. I just twisted and tinned both audio channels and soldered to the Cap. Thanks a bunch for this. You rock
That is great man! Glad to hear this tutorial helped you out. Sounds like you made it work for what you had on hand. You are welcome. What game are you gonna play first?
@@ScruffyLookinRGB Mario 3. 😂 Then I have a bunch of games I've never knew existed. DBZ and sailor moon games should be interesting . Pretty cool to play finally. Been waiting a long while to get a Famicom. Thanks again for all you vids. Appreciate them a lot
Dude you made that look so simple! I've had a Famicom for years but only managed to play it once due to not having a compatible TV that could tune to the right frequency. Will have to give this a go so I can play a bunch of games I've had for ages.
Great video, keep it up!
Thanks for the kind words my man. Its is not too difficult even if you are inexperienced at soldiering. Let me know how it goes for you. What game are you gonna play first?
I've had Final Fantasy 1/2/3 and Metal Gear but mainly I have some random clone multi carts, I've never been able to see what's on them so will be interesting. Gotta find my soldering iron first though.
@@ryoma0045 Nice choices I also love the old TMNT carts mostly 2 and 3. Hope you find your soldiering iron👍
Worked well on my famicom. I have an older one with completely different setup so I have to do much more work.
This was great job and well made.
Im glad you enjoyed it and even better you were able to successfully able to do it.
Before, I was afraid to do this mod. But this method looks easier than I thought which I can do it right now. Thank you very much
Glad i could be of some help sharpshark👍 love to see your finished work share it with me on social media if possible. Good luck man.
I thought I commented on this but I guess I didn't get around to it. I bought all of the stuff to do this mod when your video was a few months old. Lots of time went by but I finally got around to doing the mod fairly recently. Not only did it work amazingly but I love the fact that I didn't have to drill into the shell or do anything destructive to the console. Plus, I have the ability to revert it back to factory if I ever wanted to. The nicest part is that I no longer have to have the channel set to 96 anymore. Kudos!
Im glad it worked out well for you. Isnt it funny how things can get forgotten about? Glad you are pleased with the results.
the best way to keep your console as original as possible, thank you. You gave me the reason to go ahead and eventually buy a original famicom from ebay from japan which i just did. I can't wait to get it on my hands and mod it.
Im glad I could be of some help to you. I wish you luck in your AV Famicom mod. Share your results when you finish id love to see how it turns out.
@@ScruffyLookinRGB hello, today i received my console and unfortunately my motherboard is different than the one in your video, do you have any suggestions?
I know General Kenobi would be pleased. Great explanation of the mod. I've never seen the inside of a Famicom before. Very retro, but beautiful. Love the sticker instructions close to the switch. Great video.
Sam Im glad you enjoyed it! Editing that took me quite a bit of time but it was fun to do. I love the look of the original famicom and all its retroness. Do you own one?
@@ScruffyLookinRGB not yet. The system is really quite a novelty because it developed in so many directions. With cartridge and the disc add on, the wired in controllers, and the amazing games that originated for it (i think I'm saying that right) and the length of its dominance. It was the last of its kind in some respects and first of its kind in others.
Will try this one out since I dont want to ruin my Famicom drilling holes and what not. Thanks for the good tutorial! :)
Daniel Im glad this tutorial was able to help you out. Thanks for watching. If you finish your mod an want to share please tag me in twitter or instagram. I love seeing other folks results. Good luck man.
@@ScruffyLookinRGB I have bought all the necesary items, but before I start modding I have a question if thats ok. I've got the same TRRS jack that you used in the video and want to double check so I dont screw it up. At 3:10 the Audio out pins are marked with two red circles, the longest pin at the top and the one closest to the camera. The pin for Video out marked with a yellow circle is in the back. But at 3:48 it seems to be the other way around, the yellow cable (video) is connected to the pin that was marked as Audio out and vice versa. So my question is if it matters how the cables are connected to the jack?
You are a hero! I just purchased a famicom without realizing it was RF so i was nervous when it came in. I was even more nervous when i saw i had a different board then yours. But thankfully your tutorial still worked on my board! The sound is perfect and the jailbars are very minimal. My one issue though is that the picture is quite dark and i'm not sure what is causing it, probably just my tv or a pin connection issue.
Regardless, thank you so much!
Glad I could help! It could be the value of the capacitor you used causing the darker image too. But glad to hear things worked out for you.
could be the value of the resistor
i love these 😍 such great editing and music choices 🙌
Thank you infinit Loop!
Its all working!!!!!
I was runing out of ideas so i tried taking out the ceramic capacitor and conecting the audio directely to the negative leg on the 220µF Capacitor and its working perfect now!!
Congratulations I'm glad you were able to get it up and running👍👍👍🎮
@@ScruffyLookinRGB Thank you man
I´m hyped af.
Is it worrying that im not using the ceramic capacitor? could it screw up something? or is that capaacitor more like for filtering noise and stuff so its something that wont damage anything by not beeing there?
Awesome mod diy! Thanks for the upload
Glad you like it!
thanks man hope you try it out.
Excellent mod video. Just modded my Famicom using your video (same HVC-CPU-GPM-02 revision). Thanks.
You are welcome! Glad to hear it! hope you get to enjoy the improvement in picture 👍👍👍 whats your famicom game of choice?
@@ScruffyLookinRGB Gun Dec aka Vice: Project Doom.
Just picked up a famicom in japan stoked to do this and play it!
That is awesome I hope the mod goes smoothly for you.
Hey, thank you very much for this awesome mod, quite easy to do and you only need a soldering iron in tools to do this. That it retrain all it parts and dont destroy anything is really cool too :D.
Im glad you found it useful. Hope it helps you complete your famicom mod successfully. Do you have a favorite famicom game?
This is the best AV mod for a Famicom I have ever seen. Awesome video, thank you. I've only changed a controller port on my Atari 7800 and am wanting to try this. I'm wondering how you knew what tab on the trrs jack was video, ground and audio. Did you connect the female trrs to the male 3.5 av cables and do a continuity test? Thank you.
Kris thank you so much🙏 Yes, thats how it is done a simple continuity test. Share your results with me once you are done👍👍👍
I really enjoy your modding videos because they are easy to understand and they have a good sense of humor. Please add me to the 3000 subscribers give away. Keep up the awesome work!
I've done a couple of famicom AV mods and I must say this is by far the easiest method and I'm going to do my third just like this one except I might just use standard AV cable run out the controller 2 grommet. I really don't understand why people go through doing all the lifting of pin 21 and crap because just a lot of extra work and mess on the famicom with no better image results. Thanks for sharing.
That is a big compliment thanks. I agree this is the easiest method ive found thus far. Lifting pins is no fun. Happy modding man👍
I hadn't thought of running the wires out the controller port opening, THANKS! I'm actually in the middle of sourcing PC Boards for the Super Nintendo AV out connector, believe it or not I'm using it to mod an Atari 2600, those have the ability to output S-Video so the plan is to rig up a dongle out the back much like the OEM RF cable. Then use easy to find commercial Nintendo AV cables with composite and S-Video connections.
That is a good way to handle it. The snes multiout should be standard on all retro tech would make things a lot easier😉👍👍👍
Just thanks. May crom bless you from the top of his mountain
Wow, thanks! I'm glad it helped you out
fantastic MOD without cutting or removing any parts! brilliant! :)
Thank you. Are you a modder? 😀
@@ScruffyLookinRGB yes :) I made AV mod for my Famicom, Atari 2600 Jr., made some AV mods on very crappy video quality NOACs and 1:1 famiclones. Awso Sega MD1 and MD2 over clock and region mods :) and on my first NES I added famicom slot in the bottom on the expention slot place, and on one tiny B/W TV I added NOAC inside :)
@@intel386DX You are super awesome my man that is an impressive list I especially like the nes with famicom slot mod🤯👏
@@ScruffyLookinRGB thanks I will share you some photoset if you wish, when I am at the PC :)
@@ScruffyLookinRGB a bit late but, here are some of my mods :)
facebook.com/Retro-World-102895561482822/photos/
bazar.bg/obiava-29205348/nintendo-sega-atari-remontiram-i-modifitsiram
Boss video brother! I'm definitely gonna do this mod next month alongside the OpenTendo project. Wonder if you've heard of that one? Also your editing skills are awesome, haha!
Thanks for the love man👍 Glad you are gonna try it out definitely show me your results. What is the Open Tendo project? Sound creative and intriguing😯
@@ScruffyLookinRGB Welcome my man! 👏🏿 OpenTendo is a completely open source recreation of the front loader NES PCB: github.com/Redherring32/OpenTendo You can get your own newer after market components, and solder it into the board, then add any enhancements onto that as well. It's pretty damn awesome sounding, so I wanna give it a try. 😅
@@RetroSho wow this is very cool is there famicom board as well with fixed jailbar issues, and composite capabilityes? :)
@@RetroSho that sounds cool😯 even has expansion audio capabilities👏If you make this you gotta show me👀Thanks for sharing with us🙏
Awesome, thanks for this. I wanted to avoid RF and also didn't want to shell out for an RGB kit yet. This will do nicely until I do an RGB mod some day.
Im glad this helped you out. Whats the first game you will plop in after your mod?
@@ScruffyLookinRGB I’m in the middle of Metroid now.
I tried this method out on a HVC-CPU-07 using the marked GND and video pads along with the 220uF cap connected to pin46 of the cartridge connector. The image quality was really poor and high contrast. I've reverted back to the old method including lifting pin21 and cutting the trace. I usually swap out the 2SA937 PNP for a 2SA1015. I'm keen to try out this AV mod on the next HVC-GPM-02 board though as it looks like a nice time saver 😁.
Thomas thanks for letting us know how it went on your version of the board that will be very helpful for thoese that want to try this mod on the HVC-CPU-07 version of the board. Thank you for sharing. 🙏🙏🙏
much better, good job
Glad you agree with me. Have you done this mod on your famicom?
Got two AV modded Famicoms off of Yahoo a couple years ago. First one was a no-cut one like this, but for some reason it had really bad audio feedback (like a ground loop hum) when connected to my PVM (but fine connected to a Framemeister), so I got one that has AV connectors drilled into the side, and worked fine with my PVM. Probably could have done it myself now that I'm a bit more confident in my soldering, but oh well.
Some times the hum comes from the controller two volume slider. A little ipa to clean the contacts on the pcb board and the 2 prongs on the slider. Or the length of the wires they used on the inside may be too long. But sounds like you have a nice work around. Id love to get my hands on a framemister how do you like it?
@@ScruffyLookinRGB An OSSC is probably a better option now, but when I got the FrameMeister in 2014 it worked great for the most part. Some Genesis games had HDMI handshake issues (due to the Genesis's wonky sync signal I guess). I got a PVM a few years ago so don't use the FM much anymore, unfortunately.
Jim sent me! This is cool way to mod.. no need to drill holes...
Thanks for joing me man! Jim is a cool guy indeed. Thats right no drilling. Have you a famicom that has been av modded?
Beautiful. It’s really cool that you kept it completely undo-able, I often wrestle with this very thing between being a collector and a fixer…. Perfectly adding a 3.5 Jack in the back would make me so happy, but also keeping it completely original would too…. It’s rough. 😅
I picked up a pristine Famicom a few years back listed as “junk” at a recycle shop. They said it didn’t work, but it was so clean, un-yellowed, all stickers and port covers… and only 500円 it was a no brainer. I figured at the very least I could case swap a functioning Famicom…. but for whatever reason, maybe my bad Japanese understanding (though it WAS priced as junk), it worked completely fine. I still don’t understand the problem.. they had plenty of power adapters for sale that they could’ve used to check it.. 🤷♂️
Thanks. I'm glad there are others out there who agree with me and are unsure to add a jack or leave it as is. This way we can keep the ancient rf intact.
In Japan often junk just means untested. A lot of times they just don't have the time or care to test it.
@@ScruffyLookinRGB The fact that both outputs still work is pretty amazing to me, I’m glad you were able to figure that out.
Many a great deal, just because a Japanese person won’t be bothered to plug something in. 😂 I’m at about a 95% “completely fine” rate for “junk” items so far.
Yes same here I've come across a few that didn't work but were repairable
Very well explained, feel like I can do this =) Just a question though, will the AV mod work with PAL TVs or is that a whole other problem?
The video signal will still be NTSC, not PAL...
Tnx man!
doing this mod on two broken HVC-CPU-07 I bought after I replace the voltage regulator on one of them first.
PS the I have to solder the parts in different place then what you show but the place are labeled so I should be easy to do as long as the parts work the same. Thanks for the video
May the force be with you. Let me know how it goes for you.
@@ScruffyLookinRGB ok so I modded the first board and plug it in and all I get for is a gray screen with a black strip moving across it. the mic on controller 2 works and i can hear it from the tv but no video or game audio. I only have one game for it so if my game doesn't work would it be normal to have that screen? Because the nes has a gray screen when it can't read the game so if you turn on a famicon with out a game in it thought AV will you get the same result?
Hello , cool video.. just wonder what the cable size is .. ?😅
Great mod and work! I just did this mod on a GPM board and it worked right away. I am getting those dreaded jailbars however... I tried the filter cap on the PPU and another one on the CPU as some other people recommend but there was no change. Is there anything else that can be done?
Great job man👍 Jail bars are just a part of life I think some people say there are things you can do to minimalize them but I havent attempted it. Some people no matter how much they try say they cant get rid of them. Sorry couldn't be more help with the jail bars issue. If your on instagram or twitter post a shot of your work and tag me in it love to see how it came out. Oh also jail bars show up differently on different TVs too so try another tv and see if anything changes.
Hey there! Thanks a lot for your video, I have an already modded Famicom but it's getting some weird white faint lines where objects are (in the game) and I'm going to try and get that mod out and do this one as soon as I get some level ups on my soldering skills. Thanks!
I hope you are able to fix the issues your having👍👍👍
Thanks a lot! Should be easy getting the other bad boy out I suppose. Just get the hot glue out, de-solder those wires and caps and see if I don't wreck it more than it is already! :D @@ScruffyLookinRGB
This really is an excellent video and as a complete novice, I'll be taking it on this weekend if I can get the parts.
A question though, does it matter whether the resistor is 'thin film' or 'metal oxide'? And do the capacitors need to be any specific type, or will all work?
Would you mind listing the brands you typically use?
I'll report back with my progress.
That is great id love to see how it turns out. As for thin film or metal oxide im not familiar with thoese terms. I usually use any japanese brand capacitor like nichicon. Ill add more cap brands as i remember them. Good luck.
@@ScruffyLookinRGB Didn't completely work for me. Any ideas what it could be? I'll check over my soldering. Nice to have sound though, ha. ua-cam.com/video/AZT_R0ZEQYI/v-deo.html
I redid the TRRS and I'm having the same issue. I then reattached the video wire to the resistor and no improvement....in fact, I don't evet get any picture now, whereas before, I got flickers (I havent soldered the TRRS yet though, I was just checking).
My resistor is massive compared to yours. Whereas my ceramic c is tiny in comparison. Ha.
Could it be my soldering to the video pin? It's not exactly tidy but it's not messy either. It's also seat on it, rather than beside it (and I've used more solder than you did).
Can one use an RCA (yellow) cable instead of TRRS for the video? A white or red cable for mono sound (can you duplicate it, like the NES uses? And if I go that way, how would it be grounded?
Sorry about all the questions. I think I might be best just buying an already modded one!
Okay, so I re-did most of the soldering, to ensure my work was clean and it turns out, I probably had it correct in the first place! How I solved it/worked that out? I used a different 3.5mm jack to RCA; one from an old camera.
When pulling the 3.5mm jack in and out, I noticed sound was on parts I didnt expect. I then remembered I had a similar issue with my Android box where the 3.5mm jack wouldn't display video properly. So instead of using the new, working 3.5mm to RCA I bought for the Android box, I used the camcorder one, which didnt work on Android box and hey presto, I had a beautiful clean picture on my Famicom.
This youtube video helped me realise there was a difference in how they're wired, though I don't know how they're actually wired inside!
ua-cam.com/video/MI4KsJEpueA/v-deo.html
I had a slight buzzing sound in the background and realised it was caused by the mic on controller 2 (lots of people experience this). I could set it just above silent and it stops buzzing but moving the TRRS to the other side also helped.
So, your mod was brilliant, thanks again and hopefully my comments will help others. I believe I've seen someone else identify this issue too. One thing to note, the size of the capacitor and the resistors. My 220µF is quite large and I believe it's very snug against the bottom of the case....perhaps too snug....? Also, my resistor is huge, so my video is set back a little more than yours. Anyway, I hope this helps somebody and I might do a little video to show what I did and what I used. Thanks again. My first mod and somehow, it was a success!
Okay, this is my 'things I learnt; video and thanks again for posting Scruffy.
ua-cam.com/video/mORA7LEGzLo/v-deo.html
Hi, i have some trouble seeing which part is what on the TRRS jack, one part is golden while the rest is silver, am I correct that tje golden part is the video out? Great video btw!
When in doubt use a multimeter it is the surest way. Happy modding👍
Really nicely done, thanks for shareing.
I want to get a famicom I really like the look.
Maybe retro brighting that nicely yellow patina famicom back to it creamy white goodness..
always awesome videos..🐢🐢up
Thanks Raph! Always a pleasure retrobright is the way to go if you wanna clean it up. 👍 Famicom has a nice iconic look to it dont you think?
@@ScruffyLookinRGB I think it looks way better than the boring grey usa version..
They are definitely two different amimals. Japanese version has a lot more character👍👍👍
Excellent mod. One question. Will the microphone feature stay intact?
Glad you like it. And yes the mic will be intact no problem👍👍👍
Will the video out work for PAL also or NTSC only. Thanks for uploading this
That is a darn good question sorry im not quite sure about that
thx for mod tutorial!
Thanks for the kind words.
I like the idea of doing a no-cut and fully reversible mod. Also much cheaper than a VAMP board.
I wonder how easy it would be to do the old NES stereo audio mod with this. But also still having it be no-cut. Maybe with a small screwdriver sized potentiometer through one of the vent holes?
Nes stereo mod? Do you mean suddenly stereo or actual real stereo?
My board is hvc-cpu-07 so i can't find the audio and video pins, just ground. Any advice? Thanks!
there are many revisions of the board but nintendo is usually good about labeling things. Also you could google the schematics of your board version that may help.
Hi, thanks for the video, I understand about the capacitor in the video, but why do you add a capacitor to the audio output?
Glad you enjoyed the video. I was following a Japanese tutorial on line so i couldn't say for certain. Sorry i don't know exactly.
Thank you so much for this easy AV mod. I implemented it on HVC-CPU-07 board and it worked. The only problem is that video is too bright, light colors tend to be too light or just complete white. For example, the background of the famous Super Mario Bros 3 intro screen is solid white instead of the original creamy color.
I tried different resistor values (from 100ohm to 500ohm) but without success. Should I try different capacitor values (instead of 47uF)?
Yes unfortunately its a trial and error type of situation. I found a japanese blog that had this method here so i used it and it works great for this particular board revision. Other board revisions may vary unfortunately
@@ScruffyLookinRGB Yah, 1k ohm gave me the best color saturation on LCD TV, but my CRT TV couldn’t detect the signal when using that resistor. I settled on 510ohm resistor as the best value between saturated colors and signal reliability.
i like your mod its so simple to do, and NON destructive, i remember 10 years ago i did a mod that was a mess, where you had to cut one leg of the chip and remove some things and add other things, but my famicom died last year. do you know whats the difference between that mod and yours in terms of video quality and sound quality?
Im famliar with that mod where you lift pin 21 and remove the transistor add resistors etc. I have done this mod both ways and cant tell difference in quality of sound or the picture. Except this way is very easy. That sucks your famicom died maybe the caps went bad. If you get another fami or decide to fix it try this way you wont be disappointed.
Beautiful
Thank you
I got a famicom diy kit av mod kit on eBay. Just wondered when you prep the board and put flux is that the same as using soldering rosin? I’m planning to learn to solder using a cheap famicom.
Yes and yes. I would suggest a no clean flux. Rosin or soldiering past leaves a bit of sticky residu so if you go that route hit it with some ipa to clean up the area.
The HVC CPU 07 boards are different. Where do I solder my wires to for that revision?
Can you do this with Trs jack? by the way nice video.
Ashen thank you. Yes you can certainly do this with a trs jack. 👍
I'm planning to order a famicom (idk what revision I'll get, lol). Your mod looks the simplest and has minimal impact on the console. Other mods use transistors, is there a difference in signal quality?
The earlier mobo revisions tend to have a much noisier signal. Later revisions have a much clearer signal. The earlier versions need a litte more work to get a clear signal. If you want the best signal the av famicom is the way to go. But if you like the original famicom astetics the later one is easier to mod for av.
@@ScruffyLookinRGB
Thanks for your reply!
Famicom looks like the console from my childhood and AV Famicom is too expensive.
By the way, I looked at the auctions and I have another question: if you just buy something that looks normal but has not been tested, what is the likelihood that everything will be fine with it? If there is just a little rust and swollen capacitors, this is also normal)
Are there problems there, like with the Super Famicom, when one of the processors may be faulty?
please have more specifications of the necessary components? resistor and ceramic capacitor, or similar.
I did put all that info in my parts list in the description did you miss it?
Hello again my friend!!
I was using an rca to scart adapter because my tv only had scart, i decided to try on another tv wich has rca and colors work amazing!!!
But i still have no sound though, i feel like im so close to geting it working perfect. Do you have any clue of what could give no sound issue?
I seen people mentioning adjusting a coil, is it that small green coil with a philips adjusting screw?
Is there any point in the board i can use a multimeter to check if its giving out sound?
I tried blowing on the mic and i could hear me blowing on the TV, so i tried unplugging the Player 2 controler to see if it was causing an issue, but still no sound.
Any help would be much apreciated and thank you once again.
You are almost there just keep trying things out i know you will get it workin soon😁
@@ScruffyLookinRGB i wonder how you know that 😂😂😂😂
Ordered the parts to try this I have the same board I get great video through the coax but no sound so hopefully I get sound with this
Good luck! I hope you get the sound up and running💪
Got my parts in and installed iv got sound now and better video. Thank you so much. The bigger capacitor does seem to barley hit the bottom case and slightly bulge it when tighted. But I don't think it will be a issue.
Hi! Thanks for the video. I do have a question. I am kind of an electronics-noob. Could you explain a bit how you manage to do this mod without any transistor or amplifier? Seems like every other mod has some kind of amplification circuitry, why isnt it needed here? Thanks!
Hello Mathieu. I have a confession to make Im no electronics expert my self. I like to tinker and just try things out to see if they work. I found this mod by a Japanese modder and have been able to duplicate it multiple times on my own as for how and why it works sorry I dont have any details in that area. sorry i couldnt be of more help man. If i find the site where I originally found this mod i will share the link but i still have yet to rediscover where it was that I found it. Cheers!
I did this mod to a HVC-CPU-07 board Famicom and it worked, despite having different soldering locations. The picture is very dark, however. I saw in another comment that you mentioned changing the capacitor value may adjust the brightness of the picture. What values would you suggest trying to get this brighter picture?
I'd say between 220uf an 1000uf. Hope you find the sweet spot.
@@ScruffyLookinRGB Thank you so much. I’ll order a couple capacitors and check it out. Another theory I have is that it may be because I am powering my Famicom with a 9v Genesis Adapter rather than the original 10v one. I’ll let you know if I figure it out
Really cool, is it possible to use this mod with a version 6 (hvc-cpu-06) ?
I know they can be av modded just not sure if it can be done using this method.
does it matter on the rating of the 1uf ceramic capacitor? im seeing 1uf 50v ones from my supplier
also is the mod different for the original famicom that has the soft square button controllers?
50v should be plenty.
Thanks a lot for the video! I did this and works perfectly, but I do get pretty noticeable jailbars. Any way to make them less visible? Thanks
Glad to hear your mod was successful 👌 congratulations 🎊 unfortunately i have never fussed with trying to get rid of jail bars maybe i will in the near future.
@@ScruffyLookinRGB does your have it? Yeah, most of the games I have don’t really bother me, except on super Mario and super Mario land 2
Hi, I have av modded my famicom refer to your tutorial. It works great. Thank you But when I play the game with no music in the background, there is a very buzzy electricity sound. it's that normal?
It might be the soldering joints or wire length. The longer the wire the more chance for interferience. Also the player two controler can cause an echo if its not cleaned or the volume slider is slightly turned on. But if its none of those things it could just be the console has a bit of noise. Ill check a few of my modded ones at home and see if i get any noise. And good work on your successful mod!
Hi fellow, your video is top! Do you know if can I make on a board hvc-cpu-07??
Take a close look at the comments here there is someone who has been able to do it but said the picture was a little too saturated. He said he had better luck with the pin 21 method.
@@ScruffyLookinRGB thanks for the response... The pin 21 I think its too intrusive... But it's OK!
Hello my friend
Thank you for your video, i followed your instructions but the image out of the famicom comes in black and white and there is no sound.
Do you have any idea what it could be?
If i have the same problem i double and triple check my soldiering points. And if you still get nothing it may need new caps. Also if your board is not the same version as the one here it may not work the same way. Good luck
@@ScruffyLookinRGB Thank you for the reply, i really apreciate it.
I allready triple checked my soldering, and i checked and its the same version as the one you did in the video.
By recaping you mean change all the original capacitors?
Or do you know wich caps could be responsible for sound and color.
Im very happy allready though, it sure would be amazing to get color and sound out of this almost 40 year old console but even if i cant get it any better than this its ok still.
So no matter what, i really apreciate your video and still taking the time to respond after so long of posting it.
Thanks alot my friend.
Hey man this might be a dumb question but is there a difference between a 16V audio capacitor and a 25V ?
25V means the cap can take in more voltage than 16v⚡️rule of thumb is it's OK to replace a cap with a higher voltage rating never the opposite 😉
can you do the older model version of this
My takeaway: The OG famicom used Phillips screws? No triwings? No 3.8mm security bits?
no try wings my man just simple screws. very convenient. Plans to mod you own?
How can you do the adjustment to use US channel 6 on these famicom models you used in this video?
I believe if you are in the usa and you are using the famicom stock rf output you need to tune your TV to channel 95 or 96.
Scruffy does this method in theory work with all model 1 famicoms where all i have to do is find audio video and ground? Im asking because i see other methods where you have to lift the pin on the ic and remove a transistor among other things.
I have done the pin lifting method before too. But for that revision i haven't tried it this way. In theory it should work. I'll have to try it out.
Just an update. I tried this method and confirmed it also worked with the HVC-CPU-07 model.
Hey dude, can you post some of the things you used so I look for them
I put all the items I used down in the description even some of the tools. If there is something i missed let me know.
@@ScruffyLookinRGB can you tell us where we can buy the jack male and female please thanks in advance
Tell me where you bought trrs jack 4 channels. I can't find it anywhere
A quick Google search should pull one up quickly
I just opened my famicom up and found it is the CPU-07 from 1984 motherboard and yours is a later revision. I wonder if I can still follow your tutorial vid. The back part looks the same as yours
If it's the older revision, it won't be the same as this one. But the good news is it easy to swap out the power board for a new one with composit video. Rgr makes a good one.
Hey Scruffy! A question, I mistakenly bought 2200uf capacitors instead of 220uf for the audio.. Can I use them anyways? :) Thanks!
No, you gotta have the right value of microfarads
Will ask for them to change up the order! Thanks
@@ScruffyLookinRGB What is the thinking of putting a 220uf in series with a 1uf, all that does is make a 0.995uf capacitor.
Yeah, the series capacitors confuse me too, from my understanding the 220uF capacitor doesn't do anything here?
can you use the TSSR jack to replace a faulty Atari DC Jack?
I'm not familiar with atari modding so I can't say for sure.
I noticed some light interference such as a faint buzzing sound in the background and very faint cascading static bars. The coaxial cable also has the interference so maybe it's something else.
The older famicom boards are quite noisy. It's tough to get them just right
@@ScruffyLookinRGB I took a second look and the coaxial output image is clear. It's only the mod that has that interference. It may be related to where I attach the 3.5mm to RCA cable into the Jack.
I did a similar av mod to my HVC-CPU-07 model, i had to kinda figure some stuff out on my own but i got it to work. But the picture is really dark
Glad to hear you got it working. some times you can change the value of the cap it may give you a brighter image.
@@ScruffyLookinRGB Ohh okay, thank you! Can I just remove the cap and connect the video out pin directly to the TV?
I modded mine years ago but I wasn't happy with it because I lost the expansion sound channels on disk system games and some cartridge games like gimmick and it's been such a long time I don't know what to make of the work I did on the board. it's the same process as you did here
Wow you have some very sought after games my man. Interesting I have never heard of anyone loosing their expansion sound after doing a AV mod like this. I was also thinking about this the other day. My thinking is that the expansion sound is actually on the disc system and not the white and red famicom. I wonder if anyone else out there has similar issue?
@@ScruffyLookinRGB there are a handful of games that have extended audio from cartridge hardware that don't show up when piping audio out of the CPU pins or pin 45 so I was told to cut those connections and pipe it out of pin 46 on the cartridge connector because that signal is already amplified and it will modulate through the speaker as is
@@MysteryManBob after cutting the trace you still get the normal audio? But not the expansion audio? I just picked up the cart of Akumajyo densetsu. Im now curious to test the sound with an un-modded famicom vs the one i modded here to see if there is a difference in sound as you mentioned. Thanks for bringing this to my attention i will research it further and ask around.
@@ScruffyLookinRGB www.famicomworld.com/forum/index.php?topic=14571.0
this sheds some light on the audio mixing situation. I wish there was a diagram to go with it but I think it's pretty straight forward
Heyo, I've attempted this mod however I'm unable to produce any video, audio comes through completely clear, I've checked all the pins on my TRRS jack just to make sure the pin out isn't different, only thing I can think of is the fact I'm using a 1/2 watt 120ohm resistor, do you think that'd make the difference between picture and no picture at all?
I don't think that would be the reason. Usually it's a connection issue. I'd double check all your soldier joints.
@@ScruffyLookinRGB seems like my Retrotink 5X was the reason i wasnt getting a picture, directly into my TV tho gives bad waving lines and a loud buzz when the video signal is connected, all my solder joints are definitely good and i'm using the same components listed in the description, its so confusing :S
yo! just an update, got it all working, needed to ground the video connection seperately, must've been something off with my TRRS jack cause for some reason it only grounded the audio, the picture being all wavy and buzzing caused the retrotink to not accept the input aswell, so as soon as i got that fixed the RT5x was working too and looked very good for Composite, thanks for the vid!
are you sure the little ceramic cap was not a .1uf and not a 1uf. i have looked and not having any luck finding a 1uf ceramic cap.
It very well could be I did this mod a while ago and havent bought new ceramic caps in quite some time i think the mod may even work with out the ceramic cap to be honest. Its worth a try anyways.
Is there a specific voltage for the ceramic capacitor?
Good question i cant say i remember. Sorry man.
Bought all the parts and popped my Famicom open to find my board looks nothing like the one in this video.
Not to worry you can still do the mod check out this video ua-cam.com/video/yH0dS_mo77U/v-deo.html
So what the green potentiometer looking thing on the main board for?
That is a good question. One I don't know actually. It might set the radio frequency for rf out but that is a guess
@@ScruffyLookinRGB I know you can adjust these to work on us channel 3 but I don't know how to do it
I've got a modded AV famicom, i got audio but I can't get the video to work! I tried 3.5 male to female RCA adaptor and direct 3.5 to RCA video cables but neither worked.. Tried Video w/ Mono sound, and Video w/ stereo sound and also didn't work. I don't know what to do with it anymore.
This seems almost too simple compared to mods I've seen online. Are you sure it's really just three capacitors and a resistor??? That's impressive. However I do have a couple of questions, if that's alright.
Does this work for all Famicom boards, or is it specific versions? Because I really cannot tell which one I'm buying from Yahoo, nobody's ever that specific.
Or alternatively, is there a way to simply solder in the end of an AV cord? I don't mind having wires bonded to the console, it's already got controller cables stuck into it, and I have a spare AV cord I would prefer to use over buying a jack.
Thank you Tai. Yes it is that simple. This is the board version of the famicom i come accross most often. Unfortunately i have not tried this on any another board versions. But i do think it is possible. You would need to google the schematics to find out where the audio, video and ground can be tapped into. They should be fairly close to the ones in this video. Sorry there is no certain way to tell what board unless you open it up. One thing I might add is if you look into the cartridge slot and see metal around the blue plastic of the slot you have a good chance of getting the same board version as in this video. If it is just the blue plastic with out the surrounding metal than its a different version. I hope you find the one you want.
Oh and yes you can do this with regular av cables just getting them to fit through the same controller port might take some ingenuity.
Good hunting my friend👍
@@ScruffyLookinRGB Thank you! I'm hoping it works, Famicoms are fairly well-known for hating British televisions, and I maaaaaay have ordered one without the RF cable to keep shipping weight down. If all else fails I'm pretty sure some people just sell motherboards for the console so that's always a backup. Thanks for the tutorial, it's really cool!
@@ScruffyLookinRGB Hang on, final question, just to double-check I assume I don't need to ground it if I just wire straight into the audio and video without using the jack? Or should I ground one of the audio channels? Thanks again, I haven't seen this mod anywhere else so don't know who else to ask lol
@@Victor-bm4sl yes you should definitely connect it to ground on the board. I hope your mod goes well. Let me know if you have any questions.
@@ScruffyLookinRGB thank you! I hope it works, I'm not sure which board revision I've got as it hasn't arrived yet, but I reeeeeeally hope it's the GPM-02 as that would make it so much easier. Really glad I found this mod when I did!
@scruffylookingrbg i did this mod and i can only get it to work properly when something is plugged into the rf port. Did you have this issue? I'm having it on two tvs with two different famicoms...
I've had issues with video or audio not coming through, but it always comes down to a poor connection on my soldiering.
@ScruffyLookinRGB seems like I needed a bigger ground wire than I was using. All set, thanks! I have another revision I'm trying but getting no luck. Not enough ground like the other but no matter where I ground it I'm having the same issue. Might have to do the full conversion mod on that one.
would it hurt to use a 100ohm or 150 ohm resistor instead?
It should be ok. Although the signal may get worse or improve depending on the resistance you use. So it shouldnt hurt to try. Good luck
Cool mod but leaving the AV output cable hanging out there ruined the ending for me. You should replace the famicom RF hole with the new RCA 3mm jack. There no need for RF anymore after this.
Thank you! Yea every one has their own way of how they want to finish it it off. I have done quite a few of these so I wanted to show people you can keep the original hardware intact with out having to drill holes or mess with the original functionality of the RF output. Maybe Ill do another one where I switch things up a bit. Stay tuned for that one.
@@ScruffyLookinRGB Cool!... Man, could you do a permanent AV mod (trrs 3.5 jack mount on the RF slot) on my famicom if i send it to you?.
@@elronaldese depending on where you are in the world that may or may not be possible due to the current world situation. Send me an email to scruffylookinrgb@gmail.com so we can exchange more detailed information.
@@ScruffyLookinRGB Cool bro, I just sent you one. Hope didnt fall in spam. Thanx!
@@elronaldese No worries👍
Will this mod work with older, I mean, oldest, version of motherboard?
This mod is only for this revision of the motherboard if you have the older mobo the process is a little different.
Hello, can a 1uf capacitor be electrolytic?
That is a good question i wish i knew the answer to that. Sorry couldn't help ya
can i use 100 ohm and 150ohm or it have to be 120ohm ?
You could try and see what happens. I don't think it would hurt anything but I'm no professional.
@@ScruffyLookinRGB i put another comment but it seems yt deleted it because it has a link
i was asking if this trrs port good or not but it seems i cant put a link or else yt delete it
can you power famicon with 5 volt dc? what is the usb for besides it?
Sorry not sure i think the adapter is 9 or 10 volts. Are you refering to the RF adapter? Im not sure where you saw a usb?
@@ScruffyLookinRGB i posted the comment in the wrong video.
If i was going for the 3 jacks instead of one where would the ground go?
Same place as the one i soldier to in the video there are more places on the board for ground too just look for a spot that says GND for ground.
So connect ground to both video and audio?
but you still need a ntsc tv or is pal also gone work?
Im not too sure how things work in pal regions but my guess is that it should be ok as long as youve got the right power adapter.
@@ScruffyLookinRGB iv got a 230 to 110 volt power adapter but it seems he has no power?
Hi, when I do that my screen is darker than RF. Do you know how I can have more light please ?
Try another tv and see if its the same. If it's same you could try a different capacitor value on the video side
@@ScruffyLookinRGB ok i will test others capacitors because i already try to change TV, same.
@@ScruffyLookinRGB What is "Takman" ? I did it with a simple 120Ohm resistor. Is it different ?
What size of that resistor?, Is it 1/2?
I think its 1/4
My famicom has a little diferent board, can i do this mod?
It should work you might have to use a different location depending on the version some are clearly labeled on the board.
How did you make your rca to tsr ?
Not sure i understand your question?
@@ScruffyLookinRGB sorry I wasn’t clear, once you had made the modifications to the famicom and connected the cable for the output, you have a female port connected with what looks like a 35mm jack, I was curious how you had made those ends, or if you could when you have time outline out to connect the rca ends for the faux stereo sound.
this can be done in the clone console
I've never tried but it should
where'd you get the trrs jack?
Thomann Mini Jackplug 3,5mm 4 Pin
I snagged them from a shop called sengoku electronics in akihabara. There should be some at your local online electronics supplier.
Mod a famicom and keep the original look?!? Amazing! . This guy gets it!
...we modding it to Composit? Sigh what a waste.
Thanks. It a budget mod for all the nerfherders out there.